Sample records for healthy twin sisters

  1. IVF for premature ovarian failure: first reported births using oocytes donated from a twin sister

    PubMed Central

    2010-01-01

    Background Premature ovarian failure (POF) remains a clinically challenging entity because in vitro fertilisation (IVF) with donor oocytes is currently the only treatment known to be effective. Methods A 33 year-old nulligravid patient with a normal karyotype was diagnosed with POF; she had a history of failed fertility treatments and had an elevated serum FSH (42 mIU/ml). Oocytes donated by her dizygotic twin sister were used for IVF. The donor had already completed a successful pregnancy herself and subsequently produced a total of 10 oocytes after a combined FSH/LH superovulation regime. These eggs were fertilised with sperm from the recipient's husband via intracytoplasmic injection and two fresh embryos were transferred to the recipient on day three. Results A healthy twin pregnancy resulted from IVF; two boys were delivered by caesarean section at 39 weeks' gestation. Additionally, four embryos were cryopreserved for the recipient's future use. The sister-donor achieved another natural pregnancy six months after oocyte retrieval, resulting in a healthy singleton delivery. Conclusion POF is believed to affect approximately 1% of reproductive age females, and POF patients with a sister who can be an oocyte donor for IVF are rare. Most such IVF patients will conceive from treatment using oocytes from an anonymous oocyte donor. This is the first report of births following sister-donor oocyte IVF in Ireland. Indeed, while sister-donor IVF has been successfully undertaken by IVF units elsewhere, this is the only known case where oocyte donation involved twin sisters. As with all types of donor gamete therapy, pre-treatment counselling is important in the circumstance of sister oocyte donation. PMID:20334702

  2. Monozygotic twin sisters discordant for familial hemiplegic migraine

    PubMed Central

    2013-01-01

    Background The high concordance rate of migraine in monozygotic twin pairs has long been recognised. In the current study, we present a monozygotic twin pair discordant for familial hemiplegic migraine (FHM). Case presentations We evaluated 12 adult family members in 2012. The twin pair was separately examined by neurologists at different time points. Mutation screening was performed for known FHM-related genes. The monozygosity of the twins was verified. Eleven individuals had a history of migraine or paroxysmal neurological symptoms, including four patients with motor aura. No mutations were detected in the CACNA1A, ATP1A2, SCN1A, PRRT2 or NOTCH3 genes. The monozygotic twin sisters, aged 52, were discordant for age of onset, motor aura and neuropsychological aura (forced thinking). Overall, the family members presented a wide range of phenotypical features. Conclusions Familial hemiplegic migraine is a monogenic disorder that is distinct from migraine with typical aura. However, in certain families with motor aura, such as this one, it is possible that the most severe phenotype is caused by an unlikely combination of polygenic traits and non-genetic factors. In these kindreds, we propose that hemiplegic aura is only a severe and complex form of typical aura. PMID:24041236

  3. Having Twins? How to Stay Healthy

    MedlinePLUS

    ... Listen Español Text Size Email Print Share Having Twins? How to Stay Healthy Article Body The fact ... the eyes of obstetricians. Many would call a twin pregnancy a high-risk pregnancy , but don’t ...

  4. Mercury poisoning in two 13-year-old twin sisters.

    PubMed

    Khodashenas, Ezzat; Aelami, Mohammadhassan; Balali-Mood, Mahdi

    2015-03-01

    Mercury (Hg) is a toxic agent that evaporates in room temperature and its inhalation may cause poisoning. Due to the nonspecific symptoms, diagnosis is difficult in special circumstances with no initial history of Hg exposure. We report two such cases of Hg poisoning. The patients were two sisters, presenting with pain in extremities, itchy rashes, sweating, salivation, weakness, and mood changes. They have used a compound that contains mercury, for treatment of pedicullosis three months before admission. This compound was purchased from a herbal shop and was applied locally on the scalps for 2 days. Their urinary mercury concentrations were 50 and 70 mg/L. They were successfully treated by D-penicillamine and gabapentin. In a patient with any kind of bone and joint pain, skin rash erythema and peripheral neuropathy, mercury poisoning should be considered as a differential diagnosis. PMID:26109979

  5. Mercury poisoning in two 13-year-old twin sisters

    PubMed Central

    Khodashenas, Ezzat; Aelami, Mohammadhassan; Balali-Mood, Mahdi

    2015-01-01

    Mercury (Hg) is a toxic agent that evaporates in room temperature and its inhalation may cause poisoning. Due to the nonspecific symptoms, diagnosis is difficult in special circumstances with no initial history of Hg exposure. We report two such cases of Hg poisoning. The patients were two sisters, presenting with pain in extremities, itchy rashes, sweating, salivation, weakness, and mood changes. They have used a compound that contains mercury, for treatment of pedicullosis three months before admission. This compound was purchased from a herbal shop and was applied locally on the scalps for 2 days. Their urinary mercury concentrations were 50 and 70 mg/L. They were successfully treated by D-penicillamine and gabapentin. In a patient with any kind of bone and joint pain, skin rash erythema and peripheral neuropathy, mercury poisoning should be considered as a differential diagnosis.

  6. Diet transiently improves migraine in two twin sisters: possible role of ketogenesis?

    PubMed

    Di Lorenzo, C; Currà, A; Siriani, G; Coppola, G; Bracaglia, M; Cardillo, A; De Nardis, L; Pierelli, Francesco

    2013-12-01

    The ketogenic diet is a high-fat, low-carbohydrate diet long used to treat refractory epilepsy; ketogenesis (ketone body formation) is a physiological phenomenon also observed in patients following lowcarbohydrate, low-calorie diets prescribed for rapid weight loss. We report the case of a pair of twin sisters, whose high-frequency migraine improved during a ketogenic diet they followed in order to lose weight. The observed time-lock between ketogenesis and migraine improvement provides some insight into how ketones act to improve migraine. PMID:24300035

  7. Diet transiently improves migraine in two twin sisters: possible role of ketogenesis?

    PubMed

    Di Lorenzo, Cherubino; Currà, Antonio; Sirianni, Giulio; Coppola, Gianluca; Bracaglia, Martina; Cardillo, Alessandra; De Nardis, Lorenzo; Pierelli, Francesco

    2013-01-01

    The ketogenic diet is a high-fat, low-carbohydrate diet long used to treat refractory epilepsy; ketogenesis (ketone body formation) is a physiological phenomenon also observed in patients following lowcarbohydrate, low-calorie diets prescribed for rapid weight loss. We report the case of a pair of twin sisters, whose high-frequency migraine improved during a ketogenic diet they followed in order to lose weight. The observed time-lock between ketogenesis and migraine improvement provides some insight into how ketones act to improve migraine. PMID:24598400

  8. The Relationship of DNA Methylation with Age, Gender and Genotype in Twins and Healthy Controls

    Microsoft Academic Search

    Marco P. Boks; Eske M. Derks; Daniel J. Weisenberger; Erik Strengman; Esther Janson; Iris E. Sommer; René S. Kahn; Roel A. Ophoff; Joseph Najbauer

    2009-01-01

    Cytosine-5 methylation within CpG dinucleotides is a potentially important mechanism of epigenetic influence on human traits and disease. In addition to influences of age and gender, genetic control of DNA methylation levels has recently been described. We used whole blood genomic DNA in a twin set (23 MZ twin-pairs and 23 DZ twin-pairs, N = 92) as well as healthy

  9. Art for twins: Yorùbá artists and their statues/twin research studies: twins' education and conceptions; diurnal preference; inherited eye diseases; ultrasound counseling when twins are conjoined/popular twin reports: twin sisters (the film); rare pregnancy; diet test; French twins reared apart and reunited.

    PubMed

    Segal, Nancy L

    2014-06-01

    The Yorùbá of Nigeria are well known for their high twinning rate and the statues they create to commemorate deceased twins. An impressive collection of this artwork was displayed at the University of California's Fowler Museum in Los Angeles between October 13, 2013 and March 2, 2014. An overview of this exhibit is provided. Next, twin research on maternal education and conception, diurnal preference, inherited eye diseases, and ultrasound counseling for couples with conjoined twins are briefly summarized. This article concludes with a discussion of media-based items related to twins. The topics include an award-winning twin film, a rare pregnancy, a diet test, and the separation and chance reunion of monozygotic female twins. PMID:24774649

  10. First Language Attrition in the Speech of Dutch-English Bilinguals: The Case of Monozygotic Twin Sisters

    ERIC Educational Resources Information Center

    Mayr, Robert; Price, Sacha; Mennen, Ineke

    2012-01-01

    Recent years have seen a proliferation of research on attrition in L1 speech (de Leeuw, Mennen & Scobbie, in press; de Leeuw, Schmid & Mennen, 2010; Dmitrieva, Jongman & Sereno, 2010; Mennen, 2004). Adding to this line of inquiry, the present study investigates the speech of a 62-year-old bilingual monozygotic twin who emigrated to an L2-speaking…

  11. Maternal Risk Factors for Potential Maltreatment Deaths Among Healthy Singleton and Twin Infants

    PubMed Central

    Luke, Barbara; Brown, Morton B.

    2013-01-01

    Our aim was to evaluate the risk of death among healthy infants due to maltreatment, using national linked vital statistics data. The study population included all nonanomalous, full-term (? 37 weeks), non-low birthweight (> 2500 grams) infants born between 1995 and 2000 and their linked death certificates: 18,673,439 singleton pregnancies (36,864 deaths) and 77,800 twin pregnancies (356 pregnancies with a death). The underlying cause of death was characterized as due to maltreatment, sudden infant death syndrome (SIDS), and other causes, based on ICD-9 and ICD-10 codes, and modeled by maternal age using multinomial logistic regression; mothers aged 25 to 29 were the reference group. The highest risk for infant mortality was among the youngest mothers for maltreatment (AOR 2.45 and 1.95 for singleton mothers < 20 and aged 20 to 24, respectively; AOR 4.34 and 2.25 for twin mothers < 20 and aged 20 to 24, respectively). The risk of death overall and for each category was modeled by maternal age < 20, aged 20 to 24, and ? 25, with and without the father’s age present on the birth certificate, with mothers ? 25 and father’s age present as the reference group. All risks of death were significantly increased for mothers younger than age 25, with the highest risks among the youngest mothers and missing father’s age. The pattern for twins was similar, with elevated risks among younger mothers with or without father’s age present on the birth certificate. These results add to the body of knowledge regarding risk factors for infant mortality among healthy singletons and twins. PMID:17903121

  12. TWIN SISTER OF FT, GIGANTEA, and CONSTANS Have a Positive But Indirect Effect on Blue Light-Induced Stomatal Opening in Arabidopsis1[W][OA

    PubMed Central

    Ando, Eigo; Ohnishi, Masato; Wang, Yin; Matsushita, Tomonao; Watanabe, Aiko; Hayashi, Yuki; Fujii, Miho; Ma, Jian Feng; Inoue, Shin-ichiro; Kinoshita, Toshinori

    2013-01-01

    FLOWERING LOCUS T (FT) is the major regulatory component controlling photoperiodic floral transition. It is expressed in guard cells and affects blue light-induced stomatal opening induced by the blue-light receptor phototropins phot1 and phot2. Roles for other flowering regulators in stomatal opening have yet to be determined. We show in Arabidopsis (Arabidopsis thaliana) that TWIN SISTER OF FT (TSF), CONSTANS (CO), and GIGANTEA (GI) provide a positive effect on stomatal opening. TSF, which is the closest homolog of FT, was transcribed in guard cells, and light-induced stomatal opening was repressed in tsf-1, a T-DNA insertion mutant of TSF. Overexpression of TSF in a phot1 phot2 mutant background gave a constitutive open-stomata phenotype. Then, we examined whether CO and GI, which are upstream regulators of FT and TSF in photoperiodic flowering, are involved in stomatal opening. Similar to TSF, light-induced stomatal opening was suppressed in the GI and CO mutants gi-1 and co-1. A constitutive open-stomata phenotype was observed in GI and CO overexpressors with accompanying changes in the transcription of both FT and TSF. In photoperiodic flowering, photoperiod is sensed by photoreceptors such as the cryptochromes cry1 and cry2. We examined stomatal phenotypes in a cry1 cry2 mutant and in CRY2 overexpressors. Light-induced stomatal opening was suppressed in cry1 cry2, and the transcription of FT and TSF was down-regulated. In contrast, the stomata in CRY2 overexpressors opened even in the dark, and FT and TSF transcription was up-regulated. We conclude that the photoperiodic flowering components TSF, GI, and CO positively affect stomatal opening. PMID:23669744

  13. Socioeconomic Status and Number of Children Among Korean Women: The Healthy Twin Study

    PubMed Central

    Kim, Jinseob

    2013-01-01

    Objectives This study aimed to evaluate whether the birth rate is associated with socioeconomic status in the women of the Republic of Korea, where the birth rate is rapidly decreasing. Methods This study included 732 females from the Healthy Twin Study, a family-twin cohort. The participants were classified into 3 socioeconomic groups according to their average income, education, and occupation. The association between socioeconomic status and number of children was assessed using gamma regression analysis with a generalized linear mixed model, adjusting for the age group, smoking/alcohol status, and family relationships. Results The group with the highest education level had significantly fewer children compared with the group with the lowest education level (p=0.004). However, no significant associations were found according to household income level. The non-manual labor group had significantly fewer children compared with those working as homemakers (p=0.008). Conclusions This study aimed to explain the causal relationship between socioeconomic status and number of children. Associations between some socioeconomic status and number of children were found in Korea. PMID:23407625

  14. YEAST MEIOSIS Sister kinetochores are mechanically

    E-print Network

    Asbury, Chip

    YEAST MEIOSIS Sister kinetochores are mechanically fused during meiosis I in yeast Krishna K Production of healthy gametes requires a reductional meiosis I division in which replicated sister chromatids comigrate, rather than separate as in mitosis or meiosis II. Fusion of sister kinetochores during meiosis I

  15. Microscopic Particles in Two Fractions of Fresh Cerebrospinal Fluid in Twins with Schizophrenia or Bipolar Disorder and in Healthy Controls

    PubMed Central

    Johansson, Viktoria; Nybom, Rolf; Wetterberg, Lennart; Hultman, Christina M.; Cannon, Tyrone D.; Johansson, Anette G. M.; Ekman, Carl Johan; Landén, Mikael

    2012-01-01

    Background Using scanning electron microscopy, microscopic structures have been identified in fresh cerebrospinal fluid (CSF) in patients with schizophrenia and bipolar disorder, but only rarely in control subjects. However, it has not been determined whether these microscopic particles represent state or trait markers, i.e. if their presence is related to clinical manifestations of the disease or if they also can be found in as yet asymptomatic individuals with a genetic liability. This question can be addressed by studying twins discordant or concordant for schizophrenia or bipolar disorder. Methodology/Principal Findings We investigated microscopic structures in CSF in 102 individuals: 21 monozygotic and 16 dizygotic twins affected or not affected with schizophrenia, schizoaffective disorder or bipolar disorder and in 65 healthy singleton controls. A first and a second fraction of CSF was freshly applied on filters and examined by scanning electron microscopy technique. Spherical particles with lipid appearance averaging between 0.1 to 8.0 µm in diameter were detected in the center of the filter as well as located in the margins of larger aggregates binding in a viscous state. Structures were found in 12 of 17 probands, 5 of 12 healthy co-twins and 3 of 73 healthy controls. Thus, a positive microscopic finding significantly increased the likelihood of belonging to the proband group (OR?=?48, 95% CL: 8.2–550, p<0.0001) and the co-twin-group (OR?=?16, 95% CL: 2.0–218, p?=?0.006). Age, sex, history of alcohol abuse or anxiety syndrome, somatic disorder and markers of acute inflammatory activity did not account for group differences; nor did exposure to psychotropic medication. Conclusion Presence of microscopic particles in CSF may possibly reflect trait dependent genetic or environmental vulnerability in patients with schizophrenia, schizoaffective disorder or bipolar disorder. PMID:23049916

  16. The nature of behavioural correlates of healthy ageing: a twin study of lifestyle in mid to late life

    PubMed Central

    McGue, Matt; Skytthe, Axel; Christensen, Kaare

    2014-01-01

    Background With the greying of the industrialized world has come increased interest in identifying the modifiable lifestyle factors that promote healthy and successful ageing. Whereas many of the behavioural correlates of late-life morbidity and mortality have been identified, relatively little is known about the origins of individual differences in these factors. Methods A sample of 12 714 twins, including both members of 3806 pairs of known zygosity, ascertained through the Danish Twin Registry and aged 40 to 80 years, completed a self-report assessment of six lifestyle factors associated with ageing: smoking, drinking, diet and physical, social and intellectual activities. Standard biometric methods were used to analyse the twin data and determine the extent to which individual differences in each of the lifestyle factors are heritable. Results For each of the six lifestyle factors, the estimate of heritability ranged from 32% (95% CI: 19–42%) for the diet scale to 69% (62–72%) for the smoking measure. Biometric estimates of the contribution of the twins’ common rearing environment were uniformly small (?6%). There was little evidence that standardized biometric estimates varied by gender or age. Conclusions Individuals likely construct lifestyles in part to complement and reinforce underlying genetically influenced dispositions and talents. The heritable nature of lifestyle factors implies that the behavioural and genetic contributors to ageing processes are not necessarily conceptually distinct but rather reflect the complexity of gene-environment interplay in ageing. PMID:24711605

  17. CEO Sister

    NSDL National Science Digital Library

    Touted as the "nation's Number One destination for Minority Businesswomen," CEO Sister is designed to serve as an online community for businesswomen of color. Highlighted on the site are headlines from both the Washington Post and US News. A menu of resources is located in a blue box on the upper left corner of the site and contains information on higher education, ecommerce, and networking. Interested users may register to receive a lifetime email account with the site as well as access to chats and bulletin boards.

  18. Alzheimer's disease in one monozygotic twin

    PubMed Central

    Hunter, Richard; Dayan, A. D.; Wilson, John

    1972-01-01

    A woman of 64 died after an illness lasting 15 years and characterized by a progressive amnesic syndrome followed by global dementia. The brain showed changes typical of Alzheimer's disease. Her monozygotic twin sister was clinically not affected and died two years later of carcinoma. This is the second report of monozygotic twin sisters apparently discordant for presenile dementia of Alzheimer type. PMID:5084139

  19. Birth of healthy twins from in vitro development of human refrozen embryos

    Microsoft Academic Search

    Yoshimasa Yokota; Hidemi Yokota; Mikako Yokota; Setsuko Sato; Yasuhisa Araki

    2001-01-01

    Objective: To avoid the risk of ovarian hyperstimulation syndrome and promote pregnancy rate by freezing pronuclear embryos at the oocyte retrieval and using developed refrozen supernumerary embryos in the event of failed pregnancies.Design: A case study.Setting: Private IVF center.Patient(s): Healthy infertile woman undergoing IVF treatment.Intervention(s): Slowly frozen and rapidly refrozen embryos at varying stages of embryonic development were transferred.Main Outcome

  20. Sister Wendy's American Collection

    NSDL National Science Digital Library

    In conjunction with the broadcast of "Sister Wendy's American Collection" on public television, PBS online hosts this educational Website. Sister Wendy is a Reverend Mother and scholar of English who began studying art during her stay with the Carmelite nuns of Quindenham, Norfolk. She now has a popular television and book series in which she shares her "signature blend of intellect, reverence, and admiration for great works of art." Her latest project explores American museum collections. The Website furnishes color images of the works accompanied by Sister Wendy's equally colorful commentary, background on the artists, plus a guide to the six museums featured. The diverse international selection of art and artifacts includes a Native American earthen bowl, an African drum, Egyptian statuary, as well as an array of classical to contemporary paintings and drawings.

  1. Three Sisters, Oregon

    NSDL National Science Digital Library

    2001-01-01

    Earlier this month, the US Geological Survey (USGS) released a report stating that USGS scientists have detected a slight uplift of the ground surface over a broad area centered 5 kilometers west of South Sister volcano in the Three Sisters region of the central Oregon Cascade Range. This uplift was detected using a relatively new technique, Satellite Radar Interferometry (InSAR). InSAR uses satellite data to make radar images of the Earth's surface and then compares images from the same location acquired at different times to detect minor (a few centimeters) changes in the ground elevation. This page comes from the USGS Cascades Volcano Observatory Website, and it contains links to the May 8 press release, current hazards report (spring 2001), geologic descriptions of the Three Sisters volcanoes, color interferograms, site photographs, earthquake maps, an overview of InSAR, daily seismicity measurements, and much more. The USGS's Cascade Volcano Observatory has been featured previously in our reports (see the September 23, 1994 Scout Report for Science & Engineering), but the Three Sisters research is particularly timely.

  2. Ambulatory blood pressure in twin children

    Microsoft Academic Search

    William Wong; Craig A. Jefferies; Paul L. Hofman; Wayne S. Cutfield

    2001-01-01

    Adult twins have a 3 fold increase in the incidence of type 2 diabetes mellitus. We have recently shown that pre pubertal twin children are insulin resistant irrespective of birth weight and gestation. There is an established relationship between insulin resistance and hypertension.The purpose of this study is to evaluate the blood pressure (BP) profiles of healthy pre pubertal twin

  3. Sister-sister incest: data from an anonymous computerized survey.

    PubMed

    Stroebel, Sandra S; O'Keefe, Stephen L; Griffee, Karen; Kuo, Shih-Ya; Beard, Keith W; Kommor, Martin J

    2013-01-01

    Retrospective data were entered anonymously by 1,521 adult women using a computer-assisted self-interview. Thirty-one participants were victims of sister-sister incest, 40 were victims of brother-sister incest, 19 were victims of father-daughter incest, 8 were victims of sexual abuse by an adult female (including one mother), and 232 were victims of sexual abuse by an adult male other than their father before reaching 18 years of age. The rest (1,203) served as controls. The victims of sister-sister incest had significantly more problematic outcomes than controls on many measures as adults. Victims of sister-sister incest were more depressed and more likely than controls to be distant from the perpetrator-sister and to have traded sex for money, experienced an unplanned pregnancy, engaged in four different types of masturbation, and engaged in 13 different same-sex behaviors. Our findings were consistent with other reports of early eroticization and persistent hypereroticization of incest victims. PMID:23924178

  4. Sister Cities International

    NSDL National Science Digital Library

    People from around the world have sought to establish links with other individuals from different nations, and since 1956, cities have sought to also establish meaningful relationships with other urban areas through the Sister Cities International organization. Currently, the organization represents more than 2,500 communities in 126 countries. Visitors to the site can learn which cities are currently seeking partnerships with other cities, read about the organization's annual conference, and also read about the programs they administer. Also, its calendar of events is quite full with programs designed for the general public, such as those dealing with relationships with countries in the Middle East and the question of local government. Finally, the material on the site is available in a number of different languages, including French, German, Spanish, and Japanese.

  5. [Adult twins].

    PubMed

    Charlemaine, Christiane

    2006-12-31

    This paper explores the deep roots of closeness that twins share in their youngest age and their effect on their destiny at the adult age. Psychologists believe the bond between twins begins in utero and develops throughout the twins' lives. The four patterns of twinship described show that the twin bond is determined by the quality of parenting that twins receive in their infancy and early childhood. Common problems of adult twins bring about difficulties to adapt in a non-twin world. The nature versus nurture controversy has taken on new life focusing on inter-twin differences and the importance of parent-child interaction as fundamental to the growth and development of personality. PMID:17352324

  6. Healthy Foods, Healthy Lives Institute Planning Grants Awarded Spring 2013

    E-print Network

    Amin, S. Massoud

    Healthy Foods, Healthy Lives Institute Planning Grants Awarded Spring 2013 "Achieving Healthy and Affordable Food Access in the Era of Climate Change" Amount Awarded: $10,000 Timeframe: July, 1, 2013 and healthy food access for low-income and communities of color in the Twin Cities. The partners will work

  7. Twin-to-twin transfusion syndrome

    MedlinePLUS

    Twin-to-twin transfusion syndrome (TTTS) is a rare condition that occurs only in identical twins while they are in the womb. ... TTTS occurs when the blood supply of one twin moves to the other the shared placenta. The ...

  8. Cochlear Implants Keep Twin Sisters Learning, Discovering Together

    MedlinePLUS

    ... Current Issue Past Issues Special Section: Focus on Communication Cochlear Implants Past Issues / Fall 2008 Table of ... from the National Institute on Deafness and Other Communication Disorders (NIDCD), he studies how the language skills ...

  9. Effect of corticosteroids in a twin child with idiopathic localization-related epilepsy

    Microsoft Academic Search

    Ayako Sofue; Misako Naiki; Taro Yokotsuka; Megumi Miyauchi; Seiko Itomi; Tatsuya Fukasawa; Jun Natsume

    2008-01-01

    Corticosteroids have been used only in the treatment of special epileptic syndromes or epileptic encephalopathies, such as infantile spasms. We report an antiepileptic effect of corticosteroids that were used for treatment of nephropathy in a monozygotic twin child with idiopathic localization-related epilepsy (I-LRE). The patient and her monozygotic twin sister exhibited repeated partial seizures at two years of age and

  10. The UK Adult Twin Registry (TwinsUK Resource)

    PubMed Central

    Moayyeri, Alireza; Hammond, Christopher J; Hart, Deborah J; Spector, Timothy D

    2014-01-01

    TwinsUK is a nation-wide registry of volunteer twins in the UK, with about 12,000 registered twins (83% female, equal number of monozygotic and dizygotic twins, predominantly middle-aged and older). Over the last 20 years, questionnaire and blood/urine/tissue samples have been collected on over 7,000 subjects, as well as three comprehensive phenotyping assessments in the clinical facilities of the Department of Twin Research and Genetic Epidemiology, King’s College London. The primary focus of study has been the genetic basis of healthy ageing process and complex diseases including cardiovascular, metabolic, musculoskeletal, and ophthalmologic disorders. Alongside the detailed clinical, biochemical, behavioural, and socio-economic characterisation of the study population, the major strength of TwinsUK is availability of several ‘omics’ technologies for the participants. These include genome-wide scans of single nucleotide variants, next-generation sequencing, exome sequencing, epigenetic markers (MeDIP sequencing), gene expression arrays and RNA sequencing, telomere length measures, metabolomic profiles, and gut flora microbiomics. The scientific community now can freely access parts of the phenotype data from the ‘TwinsUK Resource’ and interested researchers are encouraged to contact us via our website (www.twinsuk.ac.uk) for future collaborations. PMID:23088889

  11. A Tale of Two Sisters

    ERIC Educational Resources Information Center

    Caouette, Ralph

    2009-01-01

    How many children benefit in many diverse ways through art and/or design? Their personalities may draw different benefits and attributes, but that attests to its wide scope. This article relates a brief story of two sisters. The author describes how the siblings' different personalities played a role in their success.

  12. Sister R. Leadership: Doing the Seemingly Impossible

    ERIC Educational Resources Information Center

    Sena, Rachel; Schoorman, Dilys; Bogotch, Ira

    2013-01-01

    Sister R., the first author, is a Dominican Sister of Peace. Until recently, Sister R. had been the director of the Maya Ministry Family Literacy Program, working with the Maya Community in Lake Worth, Palm Beach County, Florida. She described her work with these indigenous, preliterate, hardworking peoples as "a university of the poor" in which…

  13. Conjoined twins

    Microsoft Academic Search

    L. Spitz

    2001-01-01

    Conjoined twins occur 1 in 200 000 live births with females predominating 3:1. The twins are classified according to their most prominent site of union together with the suffix ‘pagus’. The diagnosis can be suspected on prenatal scan as early as 12 weeks gestation. A recent advance is the use of 3-D MRI imaging to provide accurate anatomical details prenatally.Management

  14. NOVA Online: Titanic's Lost Sister

    NSDL National Science Digital Library

    Companion site to an original broadcast on January 28, 1997. When Titanic sank, construction on her sister ship, Britannic, was interrupted so she could be overhauled with new regulations. Britannic sank in 1916 in less than an hour. Includes interview with Robert Ballard, who found the sunken Titanic, an interactive search, and salvage activity. Others resources available: written transcript, teacher's guide, students activities, and links to additional resources.

  15. Monozygotic twins concordant and discordant for DCD: two sides to the story.

    PubMed

    Pearsall-Jones, Jillian G; Piek, Jan P; Steed, Lyndall; McDougall, Megan R; Levy, Florence

    2011-02-01

    Being an identical twin does not necessarily mean having identical perceptions of family functioning, nor of the twin relationship. Using the co-twin control design, the aim of this study was to explore perceptions of family dynamics and the twin relationship in monozygotic (MZ) twins discordant and concordant for Developmental Coordination Disorder (DCD). It was hypothesized that, as has been found in twins discordant for cerebral palsy, twins without DCD would perceive family functioning as less healthy than would their co-twins with DCD. It was also hypothesized that the twin relationship would be regarded generally as mutually supportive. Questionnaire data on 866 sets of MZ twins aged 6 to 17 years were used to identify seven sets discordant, and two sets concordant for DCD. Quantitative (General Functioning Scale of the Family Assessment Device - FAD), and qualitative (semi-structured interview) measures were used to assess family dynamics and the twin relationship. In discordant sets, six of seven twins without DCD rated family functioning at a less healthy level than did their co-twins with DCD. All twins in the DCD concordant sets rated their family functioning at a healthy level. From the semi-structured interviews, emergent themes included friendship, support, minimal sibling rivalry, and minor difficulties. It was concluded that, overall, the twin relationship was regarded as close and mutually supportive, with an ambivalent polarity between the best and most difficult aspects of being an identical twin. Implications for research, policy and clinical practice are discussed. PMID:21314259

  16. Twin-to-twin transfusion syndrome

    MedlinePLUS Videos and Cool Tools

    Twin to Twin Transfusion Syndrome, or TTTS, is a disease of the placenta. This condition affects twins or other multiples that share a single placenta containing blood vessels going from one baby to the other. Blood from the smaller "donor" twin is transferred to the larger " ...

  17. Sister-sister in vitro fertilization surrogate pregnancy with donor sperm: the case for surrogate gestational pregnancy.

    PubMed

    Leeton, J; King, C; Harman, J

    1988-10-01

    A case of surrogate pregnancy is described in the sister of a 40-year-old hysterectomized woman where two oocytes of the latter were fertilized in vitro with known donor sperm and transferred into the surrogate. A normal singleton pregnancy developed which was complicated after 24 weeks of gestation with recurrent antepartum hemorrhages due to grade 3 placenta praevia. A healthy female baby was delivered by elective cesarean section at 36 weeks of gestation. The legal, social, psychological, and ethical issues of surrogacy remain unsettled and are discussed in this case report. PMID:3230346

  18. Preparing for Twins

    MedlinePLUS

    ... will become increasingly important as the twins approach school age. In preschool most twins can stay together in the same room, but many elementary schools prefer twins to be in separate classes. Balancing ...

  19. Monozygotic twins discordant for constitutive BRCA1 promoter methylation, childhood cancer and secondary cancer

    PubMed Central

    Galetzka, Danuta; Hansmann, Tamara; El Hajj, Nady; Weis, Eva; Irmscher, Benjamin; Ludwig, Marco; Schneider-Rätzke, Brigitte; Kohlschmidt, Nicolai; Beyer, Vera; Bartsch, Oliver; Zechner, Ulrich; Spix, Claudia; Haaf, Thomas

    2012-01-01

    We describe monozygotic twins discordant for childhood leukemia and secondary thyroid carcinoma. We used bisulfite pyrosequencing to compare the constitutive promoter methylation of BRCA1 and several other tumor suppressor genes in primary fibroblasts. The affected twin displayed an increased BRCA1 methylation (12%), compared with her sister (3%). Subsequent bisulfite plasmid sequencing demonstrated that 13% (6 of 47) BRCA1 alleles were fully methylated in the affected twin, whereas her sister displayed only single CpG errors without functional implications. This between-twin methylation difference was also found in irradiated fibroblasts and untreated saliva cells. The BRCA1 epimutation may have originated by an early somatic event in the affected twin: approximately 25% of her body cells derived from different embryonic cell lineages carry one epigenetically inactivated BRCA1 allele. This epimutation was associated with reduced basal protein levels and a higher induction of BRCA1 after DNA damage. In addition, we performed a genome-wide microarray analysis of both sisters and found several copy number variations, i.e., heterozygous deletion and reduced expression of the RSPO3 gene in the affected twin. This monozygotic twin pair represents an impressive example of epigenetic somatic mosaicism, suggesting a role for constitutive epimutations, maybe along with de novo genetic alterations in recurrent tumor development. PMID:22207351

  20. Rathke's cleft cysts in twins with type 2C von Hippel-Lindau disease.

    PubMed

    Huff, Wei X; Bonnin, José M; Fulkerson, Daniel H

    2014-08-01

    Von Hippel-Lindau disease (VHLD) is characterized by a spectrum of benign and malignant tumors in the CNS and visceral organs. Rathke's cleft cysts are benign, nonneoplastic sellar lesions that are often asymptomatic. The authors report the case of twin sisters with VHLD Type 2C with radiographically similar sellar lesions. One twin required surgery for progressive visual loss. Pathological examination of resected tissue demonstrated Rathke's cleft cyst. PMID:24877602

  1. Goddard Welcomes SISTER - Duration: 90 seconds.

    NASA Video Gallery

    The Goddard Space Flight Center in Greenbelt, Md., hosted a weeklong summer institute, SISTER, for the purpose of increasing the awareness of and providing opportunities for middle school girls to ...

  2. All in the Family: The Sister Study

    MedlinePLUS

    Skip Navigation Bar Home Current Issue Past Issues All in the Family: The Sister Study Past Issues / ... that may ultimately eliminate this dreaded disease. We all know that breast cancer does not discriminate. Whether ...

  3. Eruptive history of South Sister, Oregon Cascades

    USGS Publications Warehouse

    Fierstein, J.; Hildreth, W.; Calvert, A.T.

    2011-01-01

    South Sister is southernmost and highest of the Three Sisters, three geologically dissimilar stratovolcanoes that together form a spectacular 20km reach along the Cascade crest in Oregon. North Sister is a monotonously mafic edifice as old as middle Pleistocene, Middle Sister a basalt-andesite-dacite cone built between 48 and 14ka, and South Sister is a basalt-free edifice that alternated rhyolitic and intermediate modes from 50ka to 2ka (largely contemporaneous with Middle Sister). Detailed mapping, 330 chemical analyses, and 42 radioisotopic ages show that the oldest exposed South Sister lavas were initially rhyolitic ~50ka. By ~37ka, rhyolitic lava flows and domes (72-74% SiO2) began alternating with radially emplaced dacite (63-68% SiO2) and andesite (59-63% SiO2) lava flows. Construction of a broad cone of silicic andesite-dacite (61-64% SiO2) culminated ~30ka in a dominantly explosive sequence that began with crater-forming andesitic eruptions that left fragmental deposits at least 200m thick. This was followed at ~27ka by growth of a steeply dipping summit cone of agglutinate-dominated andesite (56-60.5% SiO2) and formation of a summit crater ~800m wide. This crater was soon filled and overtopped by a thick dacite lava flow and then by >150m of dacitic pyroclastic ejecta. Small-volume dacite lavas (63-67% SiO2) locally cap the pyroclastic pile. A final sheet of mafic agglutinate (54-56% SiO2) - the most mafic product of South Sister - erupted from and drapes the small (300-m-wide) present-day summit crater, ending a summit-building sequence that lasted until ~22ka. A 20kyr-long-hiatus was broken by rhyolite eruptions that produced (1) the Rock Mesa coulee, tephra, and satellite domelets (73.5% SiO2) and (2) the Devils Chain of ~20 domes and short coulees (72.3-72.8% SiO2) from N-S vent alignments on South Sister's flanks. The compositional reversal from mafic summit agglutinate to recent rhyolites epitomizes the frequently changing compositional modes of the South Sister locus throughout its lifetime. South Sister is part of a reach of the Cascades unusually active in the last 50kyr, characterized by high vent density, N-S vent alignments, and numerous eruptive units of true rhyolite (? 72% SiO2) that distinguishes it from much of the Quaternary Cascade arc; these are eruptive expressions of the complex confluence of arc and intraplate magmatic-tectonic regimes.

  4. Twin Jet

    NASA Technical Reports Server (NTRS)

    Henderson, Brenda; Bozak, Rick

    2010-01-01

    Many subsonic and supersonic vehicles in the current fleet have multiple engines mounted near one another. Some future vehicle concepts may use innovative propulsion systems such as distributed propulsion which will result in multiple jets mounted in close proximity. Engine configurations with multiple jets have the ability to exploit jet-by-jet shielding which may significantly reduce noise. Jet-by-jet shielding is the ability of one jet to shield noise that is emitted by another jet. The sensitivity of jet-by-jet shielding to jet spacing and simulated flight stream Mach number are not well understood. The current experiment investigates the impact of jet spacing, jet operating condition, and flight stream Mach number on the noise radiated from subsonic and supersonic twin jets.

  5. The Amoeba Sisters YouTube Videos

    NSDL National Science Digital Library

    The Amoeba Sisters

    2014-04-04

    The Amoeba Sisters strive to facilitate curiosity and engagement by making biology both humorous and meaningful. The videos use real world examples and silly cartoons to demystify difficult biology concepts, such as cell anatomy, homeostasis, enzymes, and biomolecules. A new video is released weekly. The creators are sisters who both work in education. One is a high school biology teacher who found these videos made biology more approachable and easier to comprehend.

  6. [Egon Erwin Kisch and the Blazek sisters. A contribution to the history of teratology].

    PubMed

    Schierhorn, H

    1985-01-01

    A century ago, on April 29th 1885, the "Raving Reporter" Egon Erwin Kisch was born in Prague. On this occasion his news-reporting about the conjoined Bohemian twins Rosa and Josefa Blazek (born 1878) is appreciated and compared respectively contrasted with the observations and papers of contemporary physicians, among them the famous neuropathologist Richard Henneberg from Berlin and the important gynaecologists Breisky and Pitha from Prague and Schauta from Vienna. Kisch's report "The conjoined sisters" was published in his book "Sensation fair" during his antifascistic exile firstly 1941 in New York in English, a year later in Mexico-City in the German language. In spite of his stunt-making style Kisch's declining opposite the capitalistic marketing and opposite the disgracing people's exhibition (in this case of the Bohemian pygopage sisters) is articulated. Kisch, the founder of the socialistic literary report, died in 1948 in Prague, Czechoslovakia. PMID:3913347

  7. Perceptions of "Big Sisters" and Their "Little Sisters" Regarding Mentoring Relationships

    ERIC Educational Resources Information Center

    Quarles, Alice; Maldonado, Nancy L.; Lacey, Candace H.; Thompson, Steve D.

    2008-01-01

    This qualitative study explored the relationships between six Little Sisters (mentees) and their Big Sisters (mentors) to develop an understanding of the perceptions of high-risk adolescent female mentees and their mentors regarding their mentoring relationships. Participants were purposefully selected--those actively involved in a formal…

  8. Staging of Twin-Twin Transfusion Syndrome

    Microsoft Academic Search

    Rubén A Quintero; Walter J Morales; Mary H Allen; Patricia W Bornick; Patricia K Johnson; Michael Kruger

    1999-01-01

    OBJECTIVE:The purpose of this study was to evaluate the prognostic value of sonographic and clinical parameters to develop a staging classification of twin-twin transfusion syndrome (TTTS).STUDY DESIGN:Severe TTTS was defined as the presence of polyhydramnios (maximum vertical pocket of ?8 cm) and oligohydramnios (maximum vertical pocket of ?2 cm). Nonvisualization of the bladder in the donor twin (?BDT) and absence

  9. Twins, Triplets, and Other Multiples

    MedlinePLUS

    ... what? Pregnancy This information in Spanish ( en español ) Twins, triplets, and other multiples How twins are formed ... can increase the likelihood of multiple births. How twins are formed Twins form in one of two ...

  10. Healthy Water, Healthy People.

    ERIC Educational Resources Information Center

    Etgen, John

    2002-01-01

    Describes a hands-on activity, Hitting the Mark, which is found in the "Healthy Water, Healthy People Water Quality Educators Guide" in terms of its objectives, materials, background, procedures, activities, and assessment. (KHR)

  11. Deformation twins in Hornblende

    USGS Publications Warehouse

    Rooney, T.P.; Riecker, R.E.; Ross, M.

    1970-01-01

    Hornblende deformation twins with twin planes parallel to (101) are produced experimentally in single crystals by compression parallel to the c axis. Twinning occurs at confining pressures from 5 to 15 kilobars and temperatures from 400?? to 600??C (strain rate, 10-5 per second).

  12. INTRODUCTION Mitotic metaphase chromosomes show sister chromatids

    E-print Network

    Villefranche sur mer

    . Meiosis I bivalents, as mitotic chromosomes, show sister-chromatid centromere and arm cohesions cohesion during meiosis I, and then release centromere cohesion during meiosis II (for review see Moore and Orr- Weaver, 1998). Consequently, this sequential loss of cohesion during meiosis might be precisely

  13. Original article Spontaneous sister chromatid exchanges

    E-print Network

    Paris-Sud XI, Université de

    Original article Spontaneous sister chromatid exchanges in mitotic chromosomes of cattle (Bos chromatid exchanges were counted on 50 s cycle metaphase spreads, randomly scored, for each donor at each exchanges/cell and that of chromosomes showing various numbers of exchanges followed the Poisson probability

  14. CELL CYCLE: The Difficulty in Separating Sisters

    NSDL National Science Digital Library

    Terry L. Orr-Weaver (Whitehead Institute and the Massachusetts Institute of Technology; )

    1999-07-16

    Access to the article is free, however registration and sign-in are required. The separation of the tightly associated sister chromatids during the anaphase step of cell division is an intricately orchestrated event. Orr-Weaver, in her Perspective, discusses new findings by Zou et al. in this issue that reveal the underlying molecular machinery involved.

  15. Asymmetric Twin Dark Matter

    E-print Network

    Farina, Marco

    2015-01-01

    We study a natural implementation of Asymmetric Dark Matter in Twin Higgs models. The mirroring of the Standard Model strong sector suggests that a twin baryon with mass around 5 GeV is a natural dark matter candidate once a twin baryon number asymmetry comparable to the SM asymmetry is generated. We explore twin baryon dark matter in two different scenarios, one with minimal content in the twin sector and one with a complete copy of the SM, including a light twin photon. The essential requirements for successful thermal history are presented, and in doing so we address some of the cosmological issues common to many Twin Higgs models. The required interactions we introduce predict signatures at direct detection experiments and at the LHC.

  16. Twins discordant for myositis and systemic lupus erythematosus show markedly enriched autoantibodies in the affected twin supporting environmental influences in pathogenesis

    PubMed Central

    2014-01-01

    Background Studies of twin pairs discordant for autoimmune conditions provide a unique opportunity to explore contributing factors triggered by complex gene-environment interactions. Methods In this cross-sectional study, thirty-one monozygotic or dizygotic twin pairs discordant for myositis or systemic lupus erythematosus (SLE), along with matched healthy controls were evaluated for antibodies against a panel of 21 autoantigens. Results Autoantibody profiling revealed that 42% of the affected twins showed significant seropositivity against autoantigens in the panel. In many of these affected twins, but none of healthy controls, there were high levels of autoantibodies detected against two or more autoantigens commonly seen in systemic autoimmune diseases including Ro52, Ro60, RNP-70 K and/or RNP-A. In contrast, only 10% (3/31) of the unaffected twins showed seropositivity and these immunoreactivities were against single autoantigens not seen in systemic autoimmune diseases. While no significant differences in autoantibodies were detected between the affected or unaffected twins against thyroid peroxidase, transglutaminase and several cytokines, 23% of the affected twins with myositis showed autoantibodies against the gastric ATPase. Analysis of the monozygotic twins separately also revealed a higher frequencies of autoantibodies in the affected twins compared to the unaffected twins (P?=?0.046). Lastly, clinical analysis of both the affected monozygotic and dizygotic twins revealed that the autoantibody seropositive affected twins had a greater global disease activity score compared to seronegative affected twins (P?=?0.019). Conclusion The findings of significantly more autoantibodies in the affected twins with myositis and SLE compared to the unaffected twins are consistent with potential non-genetic factors playing a role in autoantibody production and pathogenesis of these autoimmune disorders. PMID:24602337

  17. 149. TWIN FALLS MAIN CANAL DIVERSION, TWIN FALLS COUNTY, MILNER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    149. TWIN FALLS MAIN CANAL DIVERSION, TWIN FALLS COUNTY, MILNER DAM; CLOSE-UP OF MAIN CANAL GATES, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  18. 97. POINT SPILL, TWIN FALLS MAIN CANAL, TWIN FALLS COUNTY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    97. POINT SPILL, TWIN FALLS MAIN CANAL, TWIN FALLS COUNTY NORTHWEST OF MURTAUGH, IDAHO; OVERALL WEST VIEW FROM CANAL SIDE. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  19. Twin quintuplets in CVD diamond

    Microsoft Academic Search

    D. Shechtman; A. Feldman; J. L. Hutchison

    1992-01-01

    The atomic structure of twin quintuplets in a chemical vapor deposited (CVD) diamond film was - investigated by high resolution transmission electron microscopy (HRTEM). We conclude that the twin quintuplets have two main morphologies. The first consists of four Sigma = 3 twin boundaries and one Sigma = 81 twin boundary. The Sigma = 81 twin boundary contains the dislocations

  20. Monochorionic dizygous twins presenting with blood chimerism and discordant sex.

    PubMed

    Smeets, Dominique; van Vugt, John M G; Gomes, Ingrid; van den Heuvel, Simone; van Heijst, Arno; Reuss, Annette; Claahsen-van der Grinten, Hedi L

    2013-08-01

    Monochorionic dizygous twins are probably more frequent than considered previously as many cases remain unrecognized, especially when the children have the same sex. Here we present a pair of dizygous, sex-discordant monochorionic twins who were conceived after artificial insemination. Histological examination of the placenta and extensive genetic studies of the healthy boy and girl clearly proved that they indeed were monochorionic dizygous twins with a fully joined blood circulation. We conclude that when counseling parents expecting monochorionic twins of discordant sex, not only a disorder of sexual differentiation in one of the twins should be addressed but also the possibility of dizygosity with a completely normal (sexual) development of both children. PMID:23769301

  1. Pathology of Twinning

    Microsoft Academic Search

    Robert W. Bendon

    Twin pregnancies have increased rates of premature labor, pregnancy-induced hypertension, breech lie, cerebral palsy, and\\u000a perinatal death, among other complications (Kovacs et al. 1989). Some of these complications are due to the poor adaptation\\u000a of the human uterus to the increased demands and mass of twin pregnancy. Some complications are related to the obstetrical\\u000a problems of delivering twins, although modern

  2. Squint in monozygotic twins

    Microsoft Academic Search

    B. Vries; W. A. Houtman

    1979-01-01

    In a group of monozygotic twins, in which at least one of the pair squinted, strabismus was observed in both twins in only about half of the cases. Within the concordant group there was variation in the way in which the anomaly became manifest.

  3. Imaging of conjoined twins

    Microsoft Academic Search

    Kieran McHugh; Edward M. Kiely; Lewis Spitz

    2006-01-01

    The incidence of conjoined twins is estimated to be around 1 in 250,000 live births. There is a distinct female predominance. In this paper the imaging of conjoined twins both antenatally and postnatally is reviewed, in particular taking into consideration recent advances with multidetector CT. Accurate counselling of parents regarding the likely outcome of the pregnancy and the likelihood of

  4. Road salt turning Twin Cities lakes into dead seas By JOSEPHINE MARCOTTY, Star Tribune

    E-print Network

    Minnesota, University of

    Road salt turning Twin Cities lakes into dead seas By JOSEPHINE MARCOTTY, Star Tribune March 23 in lakes and streams around the Twin Cities -- road salt. The fish, bugs and other wildlife that live, a primary ingredient in salt, and what it will take to keep urban waters healthy. But the far more difficult

  5. Determinants of pressure pain threshold in adult twins: evidence that shared environmental influences predominate

    Microsoft Academic Search

    Alexander J. MacGregor; Gareth O. Griffiths; Juliet Baker; Timothy D. Spector

    1997-01-01

    The objective of this study was to examine the relative contribution of genetic and environmental factors in determining pain perception in a classical twin study. Dolorimeter measurements of pressure pain threshold (PPT) were recorded in 609 healthy female-female twin pairs of whom 269 pairs were monozygotic (MZ) and 340 were dizygotic (DZ). There was a strong correlation (R) in PPT

  6. An Investigation of Exceptional Twins.

    ERIC Educational Resources Information Center

    Crismore, Avon

    The author, herself a mother of twins, reviews research on exceptional twins. She considers reasons for fascination with twins and comments upon important advances in technology. Current research in Indianapolis to measure cognitive, perceptual, personality, and chromosome patterns of twins is described. Differences in the makeup of identical and…

  7. Twinning in tetragonal leucite

    NASA Astrophysics Data System (ADS)

    Palmer, David C.; Putnis, Andrew; Salje, Ekhard K. H.

    1988-12-01

    The change from cubic to tetragonal symmetry in natural leucite, KAlSi2O6, involves two types of twinning, which appear sequentially with decreasing temperature: (1) lamellar, associated with the point group symmetry reduction m3m to 4/mmm; (2) merohedric, associated with the change 4/mmm to 4/m. Twin orientations have been deduced from X-ray precession photos and TEM diffraction patterns and images. These are confirmed by theory, using the concept of spontaneous strain and the symmetry relations between adjacent domains. Lamellar twins have boundaries parallel to {101} of the cubic phase, and are cross-cut by the merohedric twins, which have irregular boundaries with x and y in adjacent domains interchanged. On an electron microscopic scale, the distortion arising from twin intersections is revealed by a curvature of one twin wall adjacent to another, and by needle-shaped domains. The macroscopic orientation of the lamellar twins is related to the lattice parameters and hence the magnitude of the spontaneous strain. This in turn leads to the characterisation of the order parameter for the m3m to 4/mmm transformation.

  8. Healthy Living

    MedlinePLUS

    ... changes to your lifestyle. By taking steps toward healthy living, you can help reduce your risk of ... Get the screening tests you need Maintain a healthy weight Eat a variety of healthy foods, and ...

  9. Cedar pollen aggravates atopic dermatitis in childhood monozygotic twin patients with allergic rhino conjunctivitis.

    PubMed

    Murakami, Yukako; Matsui, Saki; Kijima, Akiko; Kitaba, Shun; Murota, Hiroyuki; Katayama, Ichiro

    2011-09-01

    We report a case of 7-year-old monozygotic twin patients with atopic dermatitis. The HLA haplotypes were HLA A2, A11, B27, B61, DR1, and DR4. Both serum IgE levels and cedar pollen radioallergosorbent test (RAST) scores were high in the twins (elder/younger sister: IgE: 5170/3980 IU/ml and Japansese cedar pollen: >100/64.0) in contrast to low mite and food RAST scores (Dermatophagoides Pterygonium; 0.59/0.4 and egg white 9.24/4.6). The patients showed positive immediate (20 min in both sisters) and delayed (24 hours in elder sister, 24, 48, 72 hours in younger sister) reactions to a scratch test with Japanese cedar pollen. Skin lesions on the face were aggravated and extended to the trunk and extremities during the Japanese cedar pollen season and gradually subsided in summer. Oral provocation with egg white or cow milk showed no exacerbations, and topical corticosteroid did not improve the eczema. In contrast, successful protection from severe scratching behaviors was achieved by use of topical anti-allergic eye drops and wearing nightgowns made by the mother. PMID:21430436

  10. Dogs discriminate identical twins.

    PubMed

    Pinc, Ludvík; Bartoš, Lud?k; Reslová, Alice; Kotrba, Radim

    2011-01-01

    Earlier studies have shown variation among experimental attempts to establish whether human monozygotic twins that are genetically identical also have identical individual scents. In none of the cases were the dogs able to distinguish all the individual scents of monozygotic twins living in the same environment if the scents were presented to them separately. Ten specially trained police German Shepherd dogs of three Czech Republic Police Regional Headquarters were used for scent identification in our study. The dogs were supposed to match scents of two monozygotic pairs (5 and 7 years old) and two dizygotic twin pairs (8 and 13 years old). Scents were collected on cotton squares stored in glass jars. Dog handlers were blind to the experiment details. In each trial (line-up), one scent was used as a starting scent and the dog was then sent to determine if any of the 7 presented glass jars contained a matching scent. Scents of children of similar ages were used as distractors. In the matching procedure, the dogs matched correctly the scent of one twin with the other, as well as two scents collected from every single identical and non-identical twin to prove their efficacy and likewise, the presence of the matching twin scent in any given glass jar. All dogs in all trials distinguished correctly the scents of identical as well as non-identical twins. All dogs similarly matched positively two scents collected from the same individuals. Our findings indicated that specially trained German Shepherd dogs are able to distinguish individual scents of identical twins despite the fact that they live in the same environment, eat the same food and even if the scents are not presented to them simultaneously. PMID:21698282

  11. Deformation twinning of martensite

    Microsoft Academic Search

    J. L. Nilles; W. S. Owen

    1972-01-01

    Low temperature strength properties, deformation modes, and the transition from slip to twinning were studied in Fe-Ni massive-martensites as a function of martensite structural features. Specimens with block widths d (mm) from coarse ( d -1\\/2 = 1.0) to fine ( d -1\\/2 = 6.5) were tensile tested at 4 and 77 K. Twinning was the dominant mode at 4

  12. Dicephalic parapagus tribrachius conjoined twins in a triplet pregnancy: a case report.

    PubMed

    Kaveh, Mahbod; Kamrani, Kamyar; Naseri, Mohsen; Danaeian, Morteza; Asadi, Farhad; Davari-Tanha, Fatemeh

    2014-06-01

    Dicephalic parapagus tribrachius conjoined twin is a very rare condition. We present a case of 5-days-old male dicephalic parapagus conjoined twins. The conjoined twins were diagnosed in 4(th) month of pregnancy by ultrasonography. The pregnancy terminates at 36 weeks by cesarean section and triplets were born. The babies were male conjoined twins and another healthy male baby. Many congenital defects of interest can now be detected before birth. Sever form of this malformation precludes postpartum life. It is supposed that with advances in screening methods for prenatal diagnosis these cases are terminated in first or second trimester of pregnancy. PMID:24971140

  13. Splitting the Chromosome: Cutting the Ties That Bind Sister Chromatids

    Microsoft Academic Search

    Kim Nasmyth; Jan-Michael Peters; Frank Uhlmann

    2000-01-01

    In eukaryotic cells, sister DNA molecules remain physically connected from their production at S phase until their separation during anaphase. This cohesion is essential for the separation of sister chromatids to opposite poles of the cell at mitosis. It also permits chromosome segregation to take place long after duplication has been completed. Recent work has identified a multisubunit complex called

  14. Fused sister kinetochores initiate the reductional division in meiosis I

    E-print Network

    LETTERS Fused sister kinetochores initiate the reductional division in meiosis I Xuexian Li1 and R. Kelly Dawe1,2,3 During meiosis I the genome is reduced to the haploid content by a coordinated MIS12­NDC80 bridge between sister kinetochores at meiosis I is broken. Kinetochores separate

  15. Mouse satellite DNA, centromere structure, and sister chromatid pairing

    Microsoft Academic Search

    Lorraine M. Lica; Sandya Narayanswami; Barbara A. Hamkalo

    1986-01-01

    The experiments described were directed toward understanding relationships between mouse satellite DNA, sister chromatid pairing, and centromere function. Electron microscopy of a large mouse L929 marker chromosome shows that each of its multiple constrictions is coincident with a site of sister chromatid contact and the presence of mouse satellite DNA. However, only one of these sites, the central one, possesses

  16. Representation and Mimesis in Generative Art: Creating Fifty Sisters

    E-print Network

    McCormack, Jon

    , Representation, Mimesis, Artificial Life. Abstract: Fifty Sisters is a generative artwork commissioned the production of a generative artwork, using Fifty Sisters as an example. I also provide information on how, and realization. Representation and mimesis are some of the oldest issues in art, dating back at least

  17. Dear Sisters: It is my pleasure to welcome you to

    E-print Network

    Martinez, Tony R.

    presidency of The Church of Jesus Christ of Latter-day Saints. Broadcast worldwide from the Conference Center the temple in Nauvoo, a great Relief Society of sisters con- tinues to strengthen faith in Christ, nurture to submerge myself in learning more about Christ and the gospel. My mom and three sisters get together every

  18. Influence of brothers and sisters on sex-role behavior

    Microsoft Academic Search

    Gerald S. Leventhal

    1970-01-01

    It is often assumed that children imitate their siblings' behavior. This view implies that men with sisters display a less masculine behavior pattern than men with brothers. In an investigation of 218 male undergraduates with 1 sibling, results from the femininity scale of the CPI indicate that men with older sisters display more masculine behavior than men with older brothers.

  19. Healthy shiftwork, healthy shiftworks.

    PubMed

    Kogi, K

    2001-12-01

    Reflecting diversifying shift systems, extensive effort is put into managing shiftwork and reducing safety and health risks. It is accepted that shiftworkers are exposed to particular risks inherent in their irregular work schedules. This raises the question of how and to what extent we can ensure healthy work life for shiftworkers. In answering the question, we need to identify effective measures to improve both shiftworking conditions and the health of shiftworkers. Based on recent experiences in managing shiftwork, we note three directions of such measures: (a) comprehensive action to avoid risk-enhancing conditions based on general guidelines, (b) risk control as to workload, worksite ergonomics and risk reduction, and (c) support for flexible and restful working life. International standards are obviously relevant to these three aspects. Our own experiences in applying a set of ergonomic checkpoints to plant maintenance shiftwork demonstrate the usefulness of focusing on flexible work schedules and on multiple job-related factors such as night workload, ergonomic environment, resting conditions and training. There is a strong need for participatory planning and implementation of multi-area improvements as well as for relying on flexible schedules and autonomic teamwork. We may conclude that healthy shiftwork and healthy shiftworkers are compatible with each other only when certain conditions are met. In achieving this end, we need to combine (a) comprehensive measures to improve work schedules and job life, (b) strict risk management and (c) locally adjusted participatory steps for continual improvement. PMID:14564850

  20. Cerebral metabolism, anatomy, and cognition in monozygotic twins discordant for dementia of the Alzheimer type.

    PubMed Central

    Luxenberg, J S; May, C; Haxby, J V; Grady, C; Moore, A; Berg, G; White, B J; Robinette, D; Rapoport, S I

    1987-01-01

    One pair of monozygotic twins discordant for dementia of the Alzheimer type (DAT) was studied using neuropsychological testing, quantitative x-ray computed tomography (QCT) and magnetic resonance imaging (MRI) of the brain. Cerebral glucose metabolism was measured using positron emission tomography (PET) and 2-[18-F]fluoro-2-deoxy-D-glucose (FDG). The affected twin had a seven year history of progressive cognitive impairment and was severely demented. Neuropsychological testing of the affected twin demonstrated marked deficits in all areas of cognitive function. The asymptomatic twin showed some impairment on tests of perceptual organisation and delayed recall. The affected twin had loss of gray matter and ventricular enlargement on QCT and MRI compared with healthy controls (p less than 0.05). He also had frontal and parietal lobe hypometabolism and increased asymmetry of metabolism on PET compared to both his twin and healthy age-matched controls (p less than 0.05). PET, QCT, and MRI distinguished changes in the twin with DAT compared with his brother and healthy controls. Although the subtle neuropsychological abnormalities of the asymptomatic twin may be signs of early DAT, they were not accompanied by any changes in regional cerebral metabolism or brain structure. Images PMID:3494105

  1. Modern Physics Problem: Twin Paradox

    NSDL National Science Digital Library

    Wolfgang Christian

    The animation has 3 moving dots. The black dot corresponds to the Earthbound twin. The leading green dot gives the simultaneous (according to Earth) position of the traveling twin. The trailing red dot, which will change to blue, indicates what the Earthbound twin actually sees. (The color change represents the Doppler shift as the earthbound twin looks at his brother.) It lags the other red dot on the outbound leg, as the image of the traveling twin received by the Earthbound twin is late due to the light travel time. On the return leg, this dot turns blue and rapidly catches up to the green dot.

  2. Pregnant and parenting adolescents and their younger sisters: the influence of relationship qualities for younger sister outcomes.

    PubMed

    East, P L; Shi, C R

    1997-04-01

    On the basis of social modeling theory and a sibling interaction hypothesis, it was hypothesized that specific relationship qualities between a pregnant or parenting teen and her younger sister would be associated with permissive younger sister outcomes, such as permissive childbearing attitudes and permissive sexual behavior. Results indicated that negative relationship qualities, such as rivalry, competition, and conflict, were more closely related to younger sisters engaging in problem delinquent-like behavior and sexual behavior than were positive relationship qualities, such as warmth and closeness. Additionally, a shared friendship network with the older sister was found to be associated with extensive younger sister problem behavior and sexual behavior. Three potential explanatory processes are discussed. PMID:9113588

  3. Alloparenting for chimpanzee twins

    PubMed Central

    Kishimoto, Takeshi; Ando, Juko; Tatara, Seiki; Yamada, Nobuhiro; Konishi, Katsuya; Kimura, Natsuko; Fukumori, Akira; Tomonaga, Masaki

    2014-01-01

    In April 2009, a female chimpanzee named Sango, living in a captive group at the Noichi Zoo, Japan, gave birth to dizygotic male-female twin chimpanzees (male: Daiya, female: Sakura). The extent to which adult group members cared for the twins was investigated using a focal animal sampling method targeting six adults (one male) when the twin chimpanzees were two years old. Data were collected for an average of 6.78?h (SD = 0.79) per focal participant. An unaffiliated female adult of Sango was engaged in parenting Sakura as much as Sango. Given that Sakura was in lesser proximity to Sango than Daiya, Sakura's departures from her mother and her ability to gesture requests might have enabled non-kin adults to provide her care. PMID:25200656

  4. Monochorionic monoamniotic twins: neonatal outcome

    Microsoft Academic Search

    L Cordero; A Franco; S D Joy

    2006-01-01

    Background:Monochorionic monoamniotic twins (MoMo) occur in one of 10 000 pregnancies. Cord entanglement, malformations, twin-to-twin transfusion syndrome (TTS) and prematurity are responsible for their high perinatal morbidity and mortality.Objective:To report our experience with 36 sets of MoMo twins (1990 to 2005) and to provide updated information for counseling.Methods:Chorionicity was determined by placental examination, gestational age and TTS clinically and by

  5. Chimerism of buccal membrane cells in a monochorionic dizygotic twin.

    PubMed

    Fumoto, Seiko; Hosoi, Kenichiro; Ohnishi, Hiroaki; Hoshina, Hiroaki; Yan, Kunimasa; Saji, Hiroh; Oka, Akira

    2014-04-01

    No monochorionic dizygotic twins (MCDZTs) with cellular chimerism involving cells other than blood cells have been reported in the literature to date. Here we report a probable first case of MCDZTs with buccal cell chimerism. A 32-year-old woman conceived twins by in vitro fertilization by using 2 cryopreserved blastocysts that were transferred into her uterus. An ultrasound scan at 8 weeks' gestation showed signs indicative of monochorionic twins. A healthy boy and a healthy girl were born, showing no sexual ambiguity. Cytogenetic analyses and microsatellite studies demonstrated chimerism in blood cells of both twins. Notably, repeated fluorescence in situ hybridization and microsatellite studies revealed chimerism in buccal cells obtained from 1 of the twins. Although the mechanism through which buccal cell chimerism was generated remains to be elucidated, ectopic differentiation of chimeric hematopoietic cells that migrated to the buccal membrane or the cellular transfer between the 2 embryos at the early stage of development might be responsible for the phenomenon. This hypothesis raises an interesting issue regarding embryonic development and cellular differentiation into organs during fetal development. Given the possibility of cryptic chimerism in various organs including gonadal tissues in MCDZTs, close observation will be required to determine whether complications develop in the course of the patients' growth. PMID:24685957

  6. Reversible Twinning in Pure Aluminum

    Microsoft Academic Search

    B. Q. Li; M. L. Sui; E. Ma; S. X. Mao

    2009-01-01

    Twinning in metals is normally a permanent plastic deformation mechanism. Here we report reversible twinning in high stacking fault energy (SFE) aluminum. Twinning and spontaneous detwinning at the crack tip have been captured in situ during tensile straining under a transmission electron microscope. Both the in situ observation and the molecular dynamics simulations reveal a two-stage detwinning process. The high

  7. Deformation Twinning in Nanocrystalline Aluminum

    Microsoft Academic Search

    Mingwei Chen; En Ma; Kevin J. Hemker; Hongwei Sheng; Yinmin Wang; Xuemei Cheng

    2003-01-01

    We report transmission electron microscope observations that provide evidence of deformation twinning in plastically deformed nanocrystalline aluminum. The presence of these twins is directly related to the nanocrystalline structure, because they are not observed in coarse-grained pure aluminum. We propose a dislocation-based model to explain the preference for deformation twins and stacking faults in nanocrystalline materials. These results underscore a

  8. Staying Healthy

    MedlinePLUS

    ... Healthy What can people with Alpha-1-related emphysema do to stay as healthy as possible? First ... enzyme that causes the damage that leads to emphysema. If you currently smoke, ask your doctor or ...

  9. Healthy Snacks

    NSDL National Science Digital Library

    WGBH Educational Foundation

    2011-07-01

    This animated video segment adapted from the Centers for Disease Control and Prevention, featuring American Indian characters, offers suggestions of what to eat for healthy snacks and looks at why less healthy snacks should be considered sometimes foods.

  10. Healthy Eating

    NSDL National Science Digital Library

    Mrs. Smith

    2011-12-12

    Using websites and interactive games students will discover how eating healthy effects their bodies. Healthy eating is important in helping our bodies function at their best! Follow the links below and then answer the questions in our Healthy Foods project folder on our class wiki! VisitDining Decisionsand play a fun game where you will load your lunch tray with healthy choices. How do your current lunch choices ...

  11. Efficiency of working memory encoding in twins discordant for schizophrenia

    PubMed Central

    Bachman, Peter; Kim, Junghoon; Yee, Cindy M.; Therman, Sebastian; Manninen, Marko; Lönnqvist, Jouko; Kaprio, Jaakko; Huttunen, Matti O.; Näätänen, Risto; Cannon, Tyrone D.

    2009-01-01

    It has been proposed that patients with schizophrenia and some of their relatives suffer from reduced neurocognitive efficiency, increasing their sensitivity to experimental task demands. The present study evaluated such a possibility during performance of a working memory task by schizophrenia patients and their co-twins along with a healthy control sample. Electrophysiological data were obtained from sets of 9 twin pairs (monozygotic and dizygotic pairs collapsed) discordant for a diagnosis of schizophrenia and from 9 matched, healthy control twin pairs, during administration of a variable-load spatial working memory task. Event-related potentials (ERPs) were measured immediately after memory set onset and during a delay period. For correctly performed trials, slow-wave ERP activity measured during the late stimulus encoding and delay periods exhibited a significant Diagnostic Group-by-Memory Load interaction, with schizophrenia patients showing a differentially strong load effect. Patients’ co-twins displayed an intermediate level of load sensitivity while healthy controls showed no significant load effect. These results support an inefficiency model of neurocognitive dysfunction in schizophrenia, a pattern that appears to be related to the pathogenesis and inheritance of the disorder. Furthermore, this inefficiency appeared during the late stimulus encoding stage of working memory functioning, possibly reflecting disruptions in stimulus representation consolidation. PMID:19853415

  12. Healthy Eating

    NSDL National Science Digital Library

    Kate Anderson

    2012-04-30

    Questions to Know Beforehand: Image How much food does your body need, daily? What types of food help your body function at its best? What else does your body need to stay healthy? Use the following links to assist you in classifying healthy and not-so-healthy food options and more. Food Nutrition NOVA ...

  13. Healthy Eating

    MedlinePLUS

    Healthy Eating Alzheimer’s Caregiving Tips Eating healthy foods helps everyone stay well. It’s even more important for people with Alzheimer’s disease. Here are some tips for healthy eating. Buying and Preparing Food When the person with ...

  14. Horsetails are the sister group to all other monilophytes and Marattiales are sister to leptosporangiate ferns.

    PubMed

    Knie, Nils; Fischer, Simon; Grewe, Felix; Polsakiewicz, Monika; Knoop, Volker

    2015-09-01

    The "Monilophyte" clade comprising ferns, horsetails and whisk ferns receives unequivocal support from molecular data as the sister clade to seed plants. However, the branching order of its earliest emerging lineages, the Equisetales (horsetails), the Marattiales, the Ophioglossales/Psilotales and the large group of leptosporangiate ferns has remained dubious. We investigated the mitochondrial nad2 and rpl2 genes as two new, intron-containing loci for a wide sampling of taxa. We found that both group II introns - nad2i542g2 and rpl2i846g2 - are universally present among monilophytes. Both introns have orthologues in seed plants where nad2i542g2 has evolved into a trans-arrangement. In contrast and despite substantial size extensions to more than 5kb in Psilotum, nad2i542g2 remains cis-arranged in the monilophytes. For phylogenetic analyses, we filled taxonomic gaps in previously investigated mitochondrial (atp1, nad5) and chloroplast (atpA, atpB, matK, rbcL, rps4) loci and created a 9-gene matrix that also included the new mitochondrial nad2 and rpl2 loci. We extended the taxon sampling with two taxa each for all land plant outgroups (liverworts, mosses, hornworts, lycophytes and seed plants) to minimize the risk of phylogenetic artefacts. We ultimately obtained a well-supported molecular phylogeny placing Marattiales as sister to leptosporangiate ferns and horsetails as sister to all remaining monilophytes. In addition, an indel in an exon of the here introduced rpl2 locus independently supports the placement of horsetails. We conclude that under dense taxon sampling, phylogenetic information from a prudent choice of loci is currently superior to character-rich phylogenomic approaches at low taxon sampling. As here shown the selective choice of loci and taxa enabled us to resolve the long-enigmatic diversifications of the earliest monilophyte lineages. PMID:25999055

  15. Glomerular sclerosis in a renal isograft and identical twin donor. A family study.

    PubMed

    Parfrey, P S; Hollomby, D J; Gilmore, N J; Knaack, J; Schur, P H; Guttmann, R D

    1984-10-01

    Loss of renal mass has been associated with the development of glomerular sclerosis in animals and human beings. The pathophysiology of this renal injury is unknown, but glomerular sclerosis in animals can be aggravated or accelerated following exposure to nephrotoxic antibodies, puromycin aminoglycoside or renal irradiation. We describe here the outcome of the first renal transplant performed in the British Commonwealth. Glomerular sclerosis occurred in identical twins who were kidney donor and recipient, renal failure occurring 14 and 16 years after transplantation, respectively. Examination of these twins and all living immediate family members showed that six of the seven family members (both twins, their mother, and three sisters) had increased concentrations of circulating immune complexes, decreased total hemolytic complement, and low or borderline concentrations of C4. Only twins with single kidneys had detectable renal disease. Other preexisting causes of renal disease in these twins that would account for the glomerular sclerosis could not be identified. We suggest that a familial immune defect contributed to the development of glomerular sclerosis in these twins who were predisposed to renal disease due to loss of renal mass. PMID:6388060

  16. 8. STREAMSIDE PATH NEAR MIDDLE OF THREE SISTERS FALLS, LOOKING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. STREAM-SIDE PATH NEAR MIDDLE OF THREE SISTERS FALLS, LOOKING WEST Photocopy of photograph, 1930s National Park Service, National Capital Region files - Dumbarton Oaks Park, Thirty-second & R Streets Northwest, Washington, District of Columbia, DC

  17. Twin mitochondrial sequence analysis

    PubMed Central

    Bouhlal, Yosr; Martinez, Selena; Gong, Henry; Dumas, Kevin; Shieh, Joseph T C

    2013-01-01

    When applying genome-wide sequencing technologies to disease investigation, it is increasingly important to resolve sequence variation in regions of the genome that may have homologous sequences. The human mitochondrial genome challenges interpretation given the potential for heteroplasmy, somatic variation, and homologous nuclear mitochondrial sequences (numts). Identical twins share the same mitochondrial DNA (mtDNA) from early life, but whether the mitochondrial sequence remains similar is unclear. We compared an adult monozygotic twin pair using high-throughput sequencing and evaluated variants with primer extension and mitochondrial preenrichment. Thirty-seven variants were shared between the twin individuals, and the variants were verified on the original genomic DNA. These studies support highly identical genetic sequence in this case. Certain low-level variant calls were of high quality and homology to the mtDNA, and they were further evaluated. When we assessed calls in preenriched mtDNA templates, we found that these may represent numts, which can be differentiated from mtDNA variation. We conclude that twin identity extends to mtDNA, and it is critical to differentiate between numts and mtDNA in genome sequencing, particularly as significant heteroplasmy could influence genome interpretation. Further studies on mtDNA and numts will aid in understanding how variation occurs and persists. PMID:24040623

  18. Anaesthesia of conjoined twins.

    PubMed

    Kobylarz, Krzysztof

    2014-01-01

    Conjoined twins have been a source of fascination to the public and the medical profession for centuries. Their birth was initially viewed as an ominous sign of impending disaster. Since Middle Ages into the 19th century they were regarded as monstrosities and were exhibited at circuses and sideshows. The frequency of conjoined twins is approximately 1 in 50,000 gestation, but many of them die in utero, are terminated or stillborn. The true incidence is estimated to be 1 in 200,000 live births. This article gives an overview of Siamese twins and of the prenatal diagnosis in assessing the prognosis, anaesthetic and post-natal surgical management and outcome. Anaesthesia for conjoined twins surgery, whether prior to or for separation, is an enormous challenge to the anaesthesiologist. The site and complexity of the conjunction affect management of the airway, an intravenous access, the extent of blood and number of surgical specialties involved. Preoperative assessment and planning with interdisciplinary communication and cooperation is vital to the success of the operations. Meticulous attention to detail, monitoring and vigilance are mandatory. PMID:24858973

  19. Sister Mary Joseph nodule from metastatic renal cell carcinoma.

    PubMed

    Chen, P; Middlebrook, M R; Goldman, S M; Sandler, C M

    1998-01-01

    Metastatic lesions of the umbilicus are more common than primary malignancies and are commonly referred to as Sister Mary Joseph nodules. Most arise from the stomach or the female genital tract. We describe an unusual case of renal cell carcinoma with peritoneal implants producing a Sister Mary Joseph nodule diagnosed by CT. To our knowledge, no report of a urinary tract malignancy with umbilical involvement has been described in the radiological literature. PMID:9754112

  20. Two sisters resembling Gorlin-Chaudhry-Moss syndrome.

    PubMed

    Aravena, Teresa; Passalacqua, Cristóbal; Pizarro, Oscar; Aracena, Mariana

    2011-10-01

    The Gorlin-Chaudhry-Moss syndrome (GCMS), was describe initially by Gorlin et al. [Gorlin et al. (1960)] in two sisters with craniosynostosis, hypertrichosis, hypoplastic labia majora, dental defects, eye anomalies, patent ductus arteriosus, and normal intelligence. Two other sporadic instances have been documented. Here, we report on two sisters with a condition with some similarities to GCMS as well as some differences, which could represent either previously unreported variability in GCMS, or it may represent a novel disorder. PMID:21910232

  1. Sister chromatid exchange induced by short-lived monoadducts produced by the bifunctional agents mitomycin C and 8-methoxypsoralen. [CHO cells

    SciTech Connect

    Linnainmaa, K.; Wolff, S.

    1982-01-01

    To see if DNA crosslinks are involved in the induction of sister chromated exchange (SCE), Chinese hamster ovary cells were exposed to two bifunctional alkylating agents,mitomycin C and 8-methoxypsoralen, and their monofunctional derivatives, decarbamoyl mitomycin C and angelicin. The data indicates that monoadducts, rather than crosslinks, are responsible for SCE formation. Furthermore, all agents but angelicin produced short-lived lesions that led to SCEs in the first period of DNA replication after treatment (twin SCEs). In contrast, angelicin, like methyl methanesulfonate and N-acetoxyacetylaminofluorene, produced lesions that lasted more than one cycle, indicating that several different types of DNA lesions are capable of SCE induction.

  2. Healthy Eating

    NSDL National Science Digital Library

    Sara Adle

    2011-08-05

    Learn about different healthy diets and exercises that can help your body achieve mental and physical wellness. It's time to learn about what we can do to help us stay healthy and fit! Explore these following websites in order to learn more about healthy diets, good nutrition, and great exercises: Dining Decisions Nutrients Your Body Needs Pyramid Blast Off Now that you've finished exploring these resources, answer the following questions: 1. Think about you're average daily ...

  3. Eating Healthy

    NSDL National Science Digital Library

    Ms. Kellersberger

    2011-12-12

    Learn about different healthy diets and exercises that can help your body achieve mental and physical wellness. It's time to learn about what we can do to help us stay healthy and fit! Explore these following websites in order to learn more about healthy diets, good nutrition, and great exercises: Dining Decisions Nutrients Your Body Needs Pyramid Blast Off Now that you've finished exploring these resources, answer the following questions: 1. Think about you're average daily ...

  4. Healthy Diet

    NSDL National Science Digital Library

    Mrs. Parker

    2009-09-28

    This project will explain the importance of a balanced diet as well as learn nutrition facts to help them apply a healthy diet in their everyday lives Eating good foods is very important to living a healthy life. Click on 'food groups' pyramid below and learn about what types of food should be in your daily diet. Food groups 1. What makes a certain food healthy? 2. Do you eat the foods from the pyramid on a regular ...

  5. NOVA: Separating Twins

    NSDL National Science Digital Library

    2012-03-16

    How do skilled surgeons go about crafting a surgical procedure that will separate twins? That was the challenge faced by those medical experts who prepared to separate Trishna and Krishna, twin girls joined at the head who had been abandoned at an orphanage in Bangladesh. Visitors can watch the entire NOVA program that profiles this most remarkable procedure, and it's a great way to learn about this tremendously complex process. After watching the film, visitors can look over the Related Links. Here they can read an interview with one of the main surgeons, watch a short video on brain trauma, and find out about the possible future of brain transplants. On the right-hand side of the page, visitors can view related multimedia features, such as a map of the human heart.

  6. Tribute to dr louis keith: twin and physician extraordinaire/twin research reports: influences on asthma severity; chimerism revisited; DNA strand break repair/media reports: twins born apart; elevated twin frequencies; celebrity father of twins; conjoined twinning.

    PubMed

    Segal, Nancy L

    2014-10-01

    The International Society for Twin Studies has lost a valued friend and colleague. Dr Louis Keith, Emeritus Professor of Obstetrics and Gynecology at Northwestern University, in Chicago, passed away on Sunday, July 6, 2014. His life and work with twins will be acknowledged at the November 2014 International Twin Congress in Budapest, Hungary. Next, twin research reports on the severity of asthma symptoms, a case of chimerism, and factors affecting DNA breakage and repair mechanisms are reviewed. Media reports cover twins born apart, elevated twin frequencies, a celebrity father of twins, and a family's decision to keep conjoined twins together. PMID:25213730

  7. The embryology of conjoined twins

    Microsoft Academic Search

    M. H. Kaufman

    2004-01-01

    IntroductionAttention is drawn to the spontaneous incidence of twinning, both dizygotic and monozygotic in different mammalian species. Conjoined twinning, however, only arises when the twinning event occurs at about the primitive streak stage of development, at about 13–14 days after fertilisation in the human, and is exclusively associated with the monoamniotic monochorionic type of placentation. It is believed that the highest

  8. Healthy Lifestyle

    NSDL National Science Digital Library

    2012-08-10

    The Mayo Clinic has a terrific public outreach program, and this website provides a rich array of materials that deal with common and uncommon medical conditions. The Healthy Lifestyle area contains a range of tools and information for a healthy lifestyle. The sections include Healthy Lifestyle Topics, Life Stages, and Healthy Recipes. Within each section, visitors will find multimedia clips, expert answers, additional resources, and links to commonly asked questions. The Weight Loss area is particularly useful, as it contains over 25 different resources designed to help individuals address this increasingly common desire in a way that is balanced and meaningful. On a related note, the Healthy Recipes are a nice complement to these materials as they include suggestions for drinks, entrees, and side dishes.

  9. When You Are a Twin or Triplet

    MedlinePLUS

    ... Body Works Main Page When You Are a Twin or Triplet KidsHealth > Kids > Feelings > My Home & Family > ... 7,000 triplet babies were born. Types of Twins There are two kinds of twins — fraternal and ...

  10. Sister chromatid differentiation with biotin-dUTP.

    PubMed

    Bruckmann, E; Wojcik, A; Obe, G

    1999-01-01

    The method of choice to differentiate sister chromatids is to incorporate BrdU in replicating DNA. The disadvantage of BrdU is that its spontaneous or induced radicalization may itself lead to sister chromatid exchanges. Biotin-labelled dUTP is a widely used thymidine analogon for labelling isolated DNA. Its chemical structure suggests that, in contrast to BrdU, it does not give rise to radical formation. We electroporated proliferating Chinese hamster ovary (CHO) cells in the presence of biotin-dUTP which was subsequently detected in metaphase cells with TRITC-conjugated avidin. Microscopic analysis of second mitoses after labelling revealed a clear differential staining of sister chromatids. Thus substitution of thymidine with biotin-dUTP is another method to analyse SCE. PMID:10421378

  11. Studies of Twins Indicate That Genetics Influence Dietary Intake

    Microsoft Academic Search

    Ann Louise Hasselbalch; Berit L. Heitmann; Kirsten O. Kyvik; T. I. A. Sorensen

    2008-01-01

    Habitual dietary intake is a complex behavior that may have both biological and nonbiological bases. We estimated the contribution of genetic and environmental influences on dietary intake in a large population-based sample of healthy twins. Dataoriginatedfromacross-sectionalstudyof600maleandfemalehealthytwinpairswithself-reportedfoodconsumption frequency using a validated questionnaire with 247 foods and recipes. Estimates of relative proportion of additive genetic, nonadditive genetic, shared environmental, and unshared environmental

  12. Antenatal assessment of twin gestation.

    PubMed

    Devoe, L D; Ware, D J

    1995-10-01

    We have identified that twin gestation presents considerable risks to the well-being of both infants that can be traced to either related maternal or intrinsic fetoplacental factors. A protocol for the assessment of twin gestation is established, beginning with a basis in ultrasound identification of twinning and correct gestational dating. Because most hazards for twins are related to abnormal growth, discrepant growth between twins, and abnormalities of placentation, the approach to assessing well-being requires good serial biometry of twins. This critical review addresses the individual and combined application of standard tests used for evaluation of intrauterine health in single pregnancies: (1) ultrasound fetal growth curves; (2) Doppler velocimetry of the umbilical artery; (3) nonstress tests; (4) amniotic fluid assessment and (5) biophysical profile testing. The best current evidence suggests that there are clear deficiencies in the basis for growth nomograms for twin gestations, and with the exception of femur length, most individual anatomic measurements start to deviate from singleton standards between 21 and 30 weeks' gestation. Regardless of formulae used, estimated fetal weight provides the best discriminator for discordant growth. Dynamic assessment of fetal well-being is best provided by a combination of Doppler velocimetry and nonstress testing. Semiquantitative amniotic fluid assessment, other than establishing pathological conditions (eg, twin transfusion syndrome), is problematic and difficult to reproduce. Inadequate data exist to establish the value of the biophysical profile in twins. Given the limitations of present knowledge, serial assessment of twins beginning in the midtrimester with ultrasound observation, and adding combinations of Doppler velocimetry and nonstress testing in the third trimester, seems to represent the most reasonable current clinical approach to twin well-being. PMID:8821028

  13. Healthy Eating

    NSDL National Science Digital Library

    Miss Sweet

    2012-05-03

    What do you know about healthy eating? Check out the sites below to learn what you should and should not be eating on a daily basis. Before we get started let's see what knowledge you have about healthy eating. What do you think are some of the most healthy foods for you? Do you like to eat these foods? Now look at the sites below and answer the following questions. Blast Off Dining Decisions Nutrients Your Body Neeeds What were some good food choices ...

  14. TWINS Geomagnetic Storm Catalog

    NASA Astrophysics Data System (ADS)

    Perez, J. D.; Buzulukova, N.; Fok, M. C. H.; Goldstein, J.; McComas, D. J.; Valek, P. W.; Wood, K. D.

    2014-12-01

    Results from TWINS 1 & 2 observations and CIMI simulations have been cataloged for geomagnetic storms with Dst or SYM/H below -100 nT in the years 2008-2013. TWINS (Two Wide-angle Imaging Neutral-atom Spectrometers) provides ENA (Energetic Neutral Atom) images on a nearly continuous basis over a broad energy range (1-100 keV/amu). CIMI (Comprehensive Inner-Magnetosphere Ionosphere) model combines the ability to simulate ringcurrent dynamics solving for particle distributions and corresponding ENA fluxes with the ability to calculate radiation belt particle fluxes and inner plasma sheet electron precipitation. For each storm, the TWINS Storm Catalog provides 1-hour-samples ENA images, corresponding deconvolved 2D equatorial ion number flux and pitch angle anisotropy, and the energy spectrum and pitch angle distribution at the position of the peak of the number flux. Also included for direct comparison are results from CIMI simulations for the same quantities. The catalog is available to all interested parties. It will be shown how users of the Catalog will have the opportunity to perform a number of studies related to the dynamics of the ring current during geomagnetic storms. For example, the storms cataloged to date show trends in changes of the energy spectrum from high energy tails deficient in ions as compared to a Maxwellian, to a high energy tail and finally approaching a Maxwellian. Likewise, pitch angle distributions are shown to evolve from having more perpendicular than parallel ions to a nearly isotropic distribution. It is also possible to investigate differences in ring current behavior for CIR and ICME driven storms.It is to be noted that in this context, opportunities for results from the measurements and simulations on a finer time scale, for spectra as a function of equatorial position, and similarly for pitch angle distributions are available by request.

  15. Holographic Twin Higgs Model

    NASA Astrophysics Data System (ADS)

    Geller, Michael; Telem, Ofri

    2015-05-01

    We present the first realization of a "twin Higgs" model as a holographic composite Higgs model. Uniquely among composite Higgs models, the Higgs potential is protected by a new standard model (SM) singlet elementary "mirror" sector at the sigma model scale f and not by the composite states at mKK , naturally allowing for mKK beyond the LHC reach. As a result, naturalness in our model cannot be constrained by the LHC, but may be probed by precision Higgs measurements at future lepton colliders, and by direct searches for Kaluza-Klein excitations at a 100 TeV collider.

  16. Geologic map of Three Sisters volcanic cluster, Cascade Range, Oregon

    USGS Publications Warehouse

    Hildreth, Wes; Fierstein, Judy; Calvert, Andrew T.

    2012-01-01

    The cluster of glaciated stratovolcanoes called the Three Sisters—South Sister, Middle Sister, and North Sister—forms a spectacular 20-km-long reach along the crest of the Cascade Range in Oregon. The three eponymous stratocones, though contiguous and conventionally lumped sororally, could hardly display less family resemblance. North Sister (10,085 ft), a monotonously mafic edifice at least as old as 120 ka, is a glacially ravaged stratocone that consists of hundreds of thin rubbly lava flows and intercalated falls that dip radially and steeply; remnants of two thick lava flows cap its summit. Middle Sister (10,047 ft), an andesite-basalt-dacite cone built between 48 and 14 ka, is capped by a thick stack of radially dipping, dark-gray, thin mafic lava flows; asymmetrically glaciated, its nearly intact west flank contrasts sharply with its steep east face. Snow and ice-filled South Sister is a bimodal rhyolitic-intermediate edifice that was constructed between 50 ka and 2 ka; its crater (rim at 10,358 ft) was created between 30 and 22 ka, during the most recent of several explosive summit eruptions; the thin oxidized agglutinate that mantles its current crater rim protects a 150-m-thick pyroclastic sequence that helped fill a much larger crater. For each of the three, the eruptive volume is likely to have been in the range of 15 to 25 km³, but such estimates are fairly uncertain, owing to glacial erosion. The map area consists exclusively of Quaternary volcanic rocks and derivative surficial deposits. Although most of the area has been modified by glaciation, the volcanoes are young enough that the landforms remain largely constructional. Furthermore, twelve of the 145 eruptive units on the map are postglacial, younger than the deglaciation that was underway by about 17 ka. The most recent eruptions were of rhyolite near South Sister, about 2,000 years ago, and of mafic magma near McKenzie Pass, about 1,500 years ago. As observed by trailblazing volcanologist, Howel Williams, "For magnificence of glacial scenery, for wealth of recent lavas, and for graphic examples of dissected volcanoes, no part of this range surpasses the area embracing the Sisters and McKenzie Pass." Scientific and journalistic interest in the Three Sisters volcanic cluster was aroused a few years ago when ongoing uplift centered about 5 km west of South Sister was identified, first recognized by satellite imagery in 2001. Subsequent geodetic measurements and continuing satellite imagery analysis confirmed 3 to 4 cm/yr uplift during the interval from 1997 to 2004; the uplift has been modelled as inflation thought to be caused by an intracrustal intrusion, largely aseismic and plausibly involving mafic magma.

  17. Conjoined twins in West Africa

    Microsoft Academic Search

    O A Mabogunje; J H Lawrie

    1980-01-01

    12 cases of conjoined twins from West Africa were reported between 1936 and 1978. Eight sets were liveborn and were surgically separated either in local hospitals or abroad. Four were stillborn. Two new cases of stillborn conjoined twins were recently delivered at this hospital. The most common type and the ones most likely to be born alive were the omphalopagi.

  18. Transformation: From Twin to Individual

    ERIC Educational Resources Information Center

    Magagna, Jeanne

    2007-01-01

    This article explores some of the complexities of psychotherapy with an identical twin. The difficulty of developing in psychotherapy while so much of what is oneself is located in the other twin will also be explored. The use of the countertransference as a therapeutic method will be considered as the young person develops her unique, separate…

  19. Healthy Eyes

    MedlinePLUS

    ... los Ojos Cómo hablarle a su oculista Healthy Eyes Listen Having a comprehensive dilated eye exam is ... or contact lenses. What is a comprehensive dilated eye exam? A comprehensive dilated eye exam is a ...

  20. Healthy Eyes

    MedlinePLUS

    ... of this page please turn Javascript on. Healthy Eyes Maintaining Your Vision Click for more information Taking ... have a comprehensive dilated eye exam. Who Performs Eye Exams? An eye care professional is either an ...

  1. Ultrasound in twins: dichorionic and monochorionic.

    PubMed

    Simpson, Lynn L

    2013-10-01

    The objective of this review is to assess the evidence that supports the use of ultrasound in twin pregnancies. Although many of the indications for obstetric ultrasound are the same in both singleton and multiple gestations, there are special considerations as well as unique conditions in twins that require additional imaging studies. The reasons for ultrasound in twins include pregnancy dating, determination of chorionicity, nuchal translucency assessment, anatomical survey, placental evaluation, cervical length assessment, routine fetal growth, and serial surveillance of pregnancies complicated by anomalies, cervical shortening, fetal growth disturbances, and amniotic fluid abnormalities. Twins with monochorionic placentation require heightened scrutiny for monoamnionicity, conjoined twins, twin reversed arterial perfusion (TRAP) syndrome, twin-twin transfusion syndrome, unequal placental sharing with discordant twin growth or selective intrauterine fetal growth restriction (IUGR), twin anemia-polycythemia sequence (TAPS), and single fetal demise. Ultrasound is essential for the detection and management of conditions that can complicate dichorionic and monochorionic twin pregnancies. PMID:24176159

  2. Sister Chromatid Cohesion and Aneuploidy Erwan Watrin* and Claude Prigent*

    E-print Network

    Paris-Sud XI, Université de

    molecules are held together from their synthesis during S-phase until their separation in mitosis during mitosis (for review, see Nasmyth, 2001). Indeed, in early mitosis, cohesion between sister required for the proper distribution of replicated genomes during mitosis, but is also essential

  3. 7. STREAMSIDE PATH BETWEEN THREE BRIDGE FALLS AND THREE SISTERS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. STREAM-SIDE PATH BETWEEN THREE BRIDGE FALLS AND THREE SISTERS FALLS, LOOKING WEST Photocopy of photograph, 1930s National Park Service, National Capital Region files - Dumbarton Oaks Park, Thirty-second & R Streets Northwest, Washington, District of Columbia, DC

  4. Freud on Brothers and Sisters: A Neglected Topic

    ERIC Educational Resources Information Center

    Sherwin-White, Susan

    2007-01-01

    This paper explores Freud's developing thought on brothers and sisters, and their importance in his psychoanalytical writings and clinical work. Freud's work on sibling psychology has been seriously undervalued. This paper aims to give due recognition to Freud's work in this area. (Contains 1 note.)

  5. Chromosome condensation and sister chromatid pairing in budding yeast

    Microsoft Academic Search

    Vincent Guacci; Eileen Hogan; Douglas Koshland

    1994-01-01

    We have developed a fluorescent in situ hy- bridization (FISH) method to examine the structure of both natural chromosomes and small artificial chromo- somes during the mitotic cycle of budding yeast. Our results suggest that the pairing of sister chromatids: (a) occurs near the centromere and at multiple places along the chromosome arm as has been observed in other eukaryotic

  6. Standard sister clade comparison fails when testing derived character States.

    PubMed

    Käfer, Jos; Mousset, Sylvain

    2014-07-01

    Comparing species richness in sister clades that differ in a character state is one of the ways to study factors influencing diversification. While most of its applications have focussed on traits that increase diversification, some have been used to study the association of a trait with lower species richness, e.g., the occurrence of dioecy in flowering plants. We show here, using simulations and an analytical model, that the null expectation of equal species richness that is generally used in sister clade comparisons is wrong in the case of a derived trait occurring independently from speciation: one should expect fewer species in the clade with the derived character state when there is no difference in diversification rates. This is due to the waiting time for the derived state to appear, which causes it to occur more often on longer branches. This has the important implication that the probability for a clade to possess the derived state depends on the tree geometry, and thus on species richness: species-poorer clades are more likely to possess the derived state. We develop a statistical test for sister clade comparisons to study the effect of a derived character state. Applying it to a data set of dioecious clades, we find that we cannot confirm earlier work that concluded that dioecy decreases diversification; on the contrary, it seems to be associated to higher species richness than expected. [angiosperms; dioecy; diversification; sister clades; species richness.]. PMID:24671619

  7. Neuroectodermal tumours in the cerebellum in two sisters

    PubMed Central

    Thomas, Myfanwy; Adams, J. Hume; Doyle, David

    1977-01-01

    Two sisters, one 5 years and the other 2 years old, with intrinsic tumours of the cerebellum are reported. One of the tumours was interpreted as being a ganglioneuroma with neuroblastomatous change. The other was a desmoplastic medulloblastoma. Images PMID:599365

  8. Incomplete sister chromatid separation of long chromosome arms

    Microsoft Academic Search

    W. Rens; L. Torosantucci; F. Degrassi; M. A. Ferguson-Smith

    2006-01-01

    Chromosome segregation ensures the equal partitioning of chromosomes at mitosis. However, long chromosome arms may pose a problem for complete sister chromatid separation. In this paper we report on the analysis of cell division in primary cells from field vole Microtus agrestis, a species with 52 chromosomes including two giant sex chromosomes. Dual chromosome painting with probes specific for the

  9. Twins and Kindergarten Separation: Divergent Beliefs of Principals, Teachers, Parents, and Twins

    ERIC Educational Resources Information Center

    Gordon, Lynn Melby

    2015-01-01

    Should principals enforce mandatory separation of twins in kindergarten? Do school separation beliefs of principals differ from those of teachers, parents of twins, and twins themselves? This survey questioned 131 elementary principals, 54 kindergarten teachers, 201 parents of twins, and 112 twins. A majority of principals (71%) believed that…

  10. Ischiopagus and pygopagus conjoined twins: neurosurgical considerations

    Microsoft Academic Search

    A. Graham Fieggen; Robert N. Dunn; R. Dick Pitcher; Alastair J. W. Millar; Heinz Rode; Jonathan C. Peter

    2004-01-01

    Background Neurosurgeons are familiar with the challenges presented by craniopagus twins, but other types of conjoined twins may also have neurosurgical implications. We report our experience in the management of ischiopagus and pygopagus conjoined twins. Methods This is a retrospective review of the management of conjoined twins at Red Cross Children’s Hospital in Cape Town, South Africa. Results Twenty-three pairs

  11. History of treatment of conjoined twins.

    PubMed

    Kobylarz, Krzysztof

    2014-01-01

    This paper presents a history of the treatment of conjoined twins. The first mention of this malformation comes from the Neolithic period. Conjoined twins were depicted in mythologies of ancient peoples. The present paper focuses on the theories of formation of Siamese twins and attempts at their separation. Moreover, the history of treatment of conjoined twins in Poland is described. PMID:24858972

  12. Atrial Natriuretic Peptide Mediated Polyuria: Pathogenesis of Polyhydramnios in the Recipient Twin of Twin-twin Transfusion Syndrome

    Microsoft Academic Search

    R. Bajoria; S. Ward; S. R. Sooranna

    2001-01-01

    We studied the role of atrial natriuretic peptide (ANP) in the pathophysiology of polyhydramnios in monochorionic (MC) twins with and without twin-twin transfusion syndrome (TTTS). Matched maternal, fetal blood samples and amniotic fluids (AF) were obtained in utero (n=12) and at birth (n=20) from MC twins with TTTS. Blood and amniotic fluid samples were also collected from non-TTTS MC twin

  13. Centenary Celebration for Scottish Missionary Mary Slessor: A Lasting Legacy for Twins/Twin Research: Twins With Kleinfelter's Syndrome; Twin Research on Atopic Diseases; Twin Study of Autism; Psychotherapy with Twins / General Interest: Female Twin Pole-Vaulters; Longest Twin Birth Interval; Pair of Franco-Cuban Vocalists; Croatian Twin Models.

    PubMed

    Segal, Nancy L

    2015-06-01

    The centenary celebration for Scottish missionary, Mary Slessor, took place on February 14, 2015 in Melle, Belgium. Slessor saved many newborn twins and their mothers from death and disownment by members of their community, including their families, who believed twins harbored evil spirits. The events of this unusual and significant gathering are described. Next, twin research and reports concerning Kleinfelter's disease, atopic diseases, autism and psychotherapy are presented. General interest subjects include identical female twin pole-vaulters, the longest twin birth interval, Franco-Cuban twin vocalists, and Croatian twin models. PMID:25906830

  14. 184. Photocopy of drawing (taken from right corner of Twin ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    184. Photocopy of drawing (taken from right corner of Twin Falls Canal Company drawing #7017, located in Twin Falls Canal Company office, Twin Falls, Idaho). ORIGINAL 1900 SEGREGATION DAM PLAN, TWIN FALLS COUNTY, MILNER, IDAHO. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  15. Healthy Eating

    NSDL National Science Digital Library

    BRobison

    2010-12-03

    This Project will help you to discover how you're eating, and how that affects your life. You will also use the tools provided to help make healthy eating choices. First, Calculate your Body Mass Index using the BMI Calculator. Then, after exploring the website, answer these questions: 1) What exactly is the BMI? 2) What are two limitations of the BMI Calculator? 3) What is a healthy BMI for YOU (age group height? 4) List 7 other risk factors that can contribute to heart ...

  16. Failure of vincristine induce twinning

    NASA Technical Reports Server (NTRS)

    Binder, M.

    1984-01-01

    Mammalian ova do not contain axes of symmetry from which are derived embryonic axes of symmetry. Mammalian axis determination is an early embryologic event occurring at about the time that monozygous twinning in mice. (Kaufma MH & O'Shea KS, 1978, Nature 276:707) and an attempt was made to reproduce their work in several strains of mice. Over 3200 embryos were examined without any twins being found. To rule out the possibility that vincristine caused twinning plus some lethal malformation (with subsequent resorption of the embryo) the embryos were examined 36-60 hours after vincristine treatment.

  17. Mechanism of slip and twinning

    NASA Technical Reports Server (NTRS)

    Rastani, Mansur

    1992-01-01

    The objectives are to: (1) demonstrate the mechanisms of deformation in body centered cubic (BCC), face centered cubic (FCC), and hexagonal close-packed (HCP)-structure metals and alloys and in some ceramics as well; (2) examine the deformed microstructures (slip lines and twin boundaries) in different grains of metallic and ceramic specimens; and (3) study visually the deformed macrostructure (slip and twin bands) of metals and alloys. Some of the topics covered include: deformation behavior of materials, mechanisms of plastic deformation, slip bands, twin bands, ductile failure, intergranular fracture, shear failure, slip planes, crystal deformation, and dislocations in ceramics.

  18. Perinatal complications in unaffected sisters of anorexia nervosa patients: testing a covariation model between genetic and environmental factors.

    PubMed

    Favaro, Angela; Tenconi, Elena; Bosello, Romina; Degortes, Daniela; Santonastaso, Paolo

    2011-09-01

    Although perinatal complications are hypothesized to be risk factors for the development of anorexia nervosa (AN), no study to date explored this issue using a discordant sibling design. This type of design allows to explore whether the risk for obstetric complications is itself a consequence of the genetic vulnerability for AN (covariation model) or whether obstetric complications increase the risk of AN independently of (additive model), or in interaction with (interaction model), the disorder's genetic liability. The presence of perinatal complications was assessed through review of the obstetric records of 60 AN subjects, 60 unaffected sisters, and 70 healthy subjects. Unaffected sisters and healthy controls were compared in relation to perinatal characteristics and complications. There was no evidence for an elevated rate of complications in unaffected siblings of AN patients. Mothers with a positive psychiatric history tended to have more perinatal complications. Perinatal complications seem to be independent risk factors that may interact with, but are not caused by, familial risk factors for AN. In terms of prevention, a particular attention should be paid to mothers with a lifetime history of psychiatric disorders. PMID:21193995

  19. Monochorionic-Monoamniotic Twins in Rural America

    Microsoft Academic Search

    David Heflin; C. Brent Boles

    2008-01-01

    Twin pregnancies are considered high risk, with monochorionic-monoamniotic twins being a rare occurrence. Monoamniotic twins carry an increased risk for fetal mortality, commonly due to umbilical cord entanglement and\\/or knotting of the cord. Presented are three cases of monochorionic-monoamniotic twins occurring in a clinic in rural western Kentucky within a one-year period. All three sets of twins had a positive

  20. Healthy Air at School

    MedlinePLUS

    ... Healthy Air > At School > Healthy Air at School Healthy Air at School To grow into healthy adults, ... difficult problems. How to Keep Air at School Healthy Want to get involved in protecting the air ...

  1. Healthy Learning.

    ERIC Educational Resources Information Center

    Kennedy, Mike

    2003-01-01

    Offers ten suggestions for schools and universities to help maintain a healthy indoor environment: proper flooring, sanitary washrooms, consistent maintenance, indoor air quality, preventing mold, daylighting, good acoustics, avoiding volatile organic compounds (VOCs), ergonomic furniture, and well-maintained roofs. (EV)

  2. Staying Healthy

    MedlinePLUS

    ... past menopause who are still having a menstrual cycle because they are using menopausal hormone therapy might need some extra iron over the 8 mg (milligrams) recommended for women over age 50. Iron, important for healthy red blood cells, is found in meat, duck, peas, beans, and ...

  3. Comparison of the frequency of sister chromatid exchange in pan chewers and oral submucous fibrosis patients

    PubMed Central

    Jeyapradha, D; Saraswathi, TR; Ranganathan, K; Wilson, Kavitha

    2011-01-01

    Sister chromatid exchange (SCE) test is a sensitive, biomarker of genotoxic substances. The frequency of SCE in lymphocytes of ten pan chewing patients, oral submucous fibrosis (OSF) patients and age matched healthy controls were investigated. The frequency of mean SCE/cell was found to be 10.428 ± 0.755 in OSF patients, 8.752 ± 0.383 in case of pan chewers as compared to 5.912 ± 0.310 in controls. These values show a significant increase in frequency of SCE/cell in OSF patients and pan chewers when compared with that of healthy controls. There is a positive correlation co-efficient of SCE/cell with frequency, quantity, duration, intensity and period of exposure of pan-parag to oral mucosa in pan chewers and OSF patients indicating genotoxic effect of pan. Thus SCE could be used as a biomarker in chewers also to assess the level of genomic damage and to advocate efficient control measures. PMID:22144829

  4. Monozygotic twin discordance for phacomatosis cesioflammea further supports the post-zygotic mutation hypothesis.

    PubMed

    Castori, Marco; Sarazani, Stefano; Binni, Francesco; Pezzella, Francesca Romana; Cruciani, Giovanni; Grammatico, Paola

    2011-09-01

    Phacomatosis pigmentovascularis (PPV) is a group of sporadic skin disorders combining widespread cutaneous capillary malformations and pigmented nevi. Etiopathogenesis of the various forms of PPV is unknown, although a non-allelic twin spotting has been proposed as the most likely underlying mechanism. We report on the second instance of monozygotic twin discordance for PPV. Identical twins were observed shortly after birth, one affected by PPV and the other healthy, except for a standard Mongolian spot. Membrane examination was compatible with a monochorionic diamniotic pregnancy, and microsatellite analysis demonstrated monozygosity. This report confirms that PPV likely originates from a post-zygotic mutation rising shortly after conception and affecting different cell lineages. Speculations about mechanisms linked to phenotypic discrepancies among identical twins were also put forward. PMID:21815260

  5. Management of pyopagus conjoined twins

    Microsoft Academic Search

    Anthony D. Hockley; Peter Gornall; Richard Walsh; Hiroshi Nishikawa; Hiu Lam; Lesley MacPherson; Jeff Bissenden; Gabrielle Downey; Lewis Spitz

    2004-01-01

    IntroductionApproximately 18% of conjoined twins (1 in 200,000 live births) are joined at the sacrum (“pyopagus”). As the joined structures are not life-threatening, there is generally a good prognosis, with time for investigation and planning of operative separation.Case report This paper reports on the management of pyopagus twin girls, the first in the UK delivered at 36 weeks by Caesarean section.

  6. Calcific periarthritis as the only clinical manifestation of hypophosphatasia in middle-aged sisters.

    PubMed

    Guañabens, Núria; Mumm, Steven; Möller, Ingrid; González-Roca, Eva; Peris, Pilar; Demertzis, Jennifer L; Whyte, Michael P

    2014-04-01

    Hypophosphatasia (HPP) is the inborn error of metabolism that features low serum alkaline phosphatase (ALP) activity caused by loss-of-function mutation(s) within the gene for the tissue nonspecific isoenzyme of ALP (TNSALP). In HPP, extracellular accumulation of inorganic pyrophosphate (PPi), a TNSALP substrate and inhibitor of mineralization, leads frequently to premature tooth loss and often to rickets or osteomalacia. In affected adults, the excess PPi sometimes also causes calcium pyrophosphate dihydrate (CPPD) deposition, PPi arthropathy, or pseudogout, or seemingly paradoxical deposition of hydroxyapatite crystals in ligaments or around joints when the condition is called calcific periarthritis (CP). We report three middle-aged sisters with CP as the only clinical manifestation of HPP. Each presented during early adult life with recurrent episodes of pain principally around the shoulders, elbows, wrists, hips, or Achilles tendon. Otherwise, they were in good health, including no history of unusual dental disease, fractures, or pseudofractures. Calcific deposits were identified in symptomatic areas principally by ultrasonographic assessment but also confirmed radiographically. All three sisters had low serum levels of total and bone-specific ALP, hyperphosphatemia, and increased serum concentrations of the TNSALP substrate pyridoxal 5'-phosphate together characteristic of HPP. Mutation analysis revealed that each carried a single unique 18-bp duplication within TNSALP (c.188_205dup18, p.Gly63_Thr68dup) as did two of their healthy sons and their mother, who was without signs of CPPD deposition or CP but had knee osteoarthritis. We find that CP can be the only complication of HPP in adults. Thus, multiple juxta-articular deposits of hydroxyapatite causing CP may be a useful sign of HPP, especially when the CP is familial. PMID:24123110

  7. Sister chromatid junctions in the hyperthermophilic archaeon Sulfolobus solfataricus

    PubMed Central

    Robinson, Nicholas P; Blood, Katherine A; McCallum, Simon A; Edwards, Paul A W; Bell, Stephen D

    2007-01-01

    Although the Archaea exhibit an intriguing combination of bacterial- and eukaryotic-like features, it is not known how these prokaryotic cells segregate their chromosomes before the process of cell division. In the course of our analysis of the third replication origin in the archaeon Sulfolobus solfataricus, we identify and characterise sister chromatid junctions in this prokaryote. This pairing appears to be mediated by hemicatenane-like structures, and we provide evidence that these junctions persist in both replicating and postreplicative cells. These data, in conjunction with fluorescent in situ hybridisation analyses, suggest that Sulfolobus chromosomes have a significant period of postreplicative sister chromatid synapsis, a situation that is more reminiscent of eukaryotic than bacterial chromosome segregation mechanisms. PMID:17255945

  8. Paternity testing in case of brother-sister incest.

    PubMed

    Macan, Marijana; Uvodi?, Petra; Botica, Vladimir

    2003-06-01

    We performed a paternity test in a case of incest between brother and sister. DNA from blood samples of the alleged parents and their two children was obtained with Chelex DNA extraction method and quantified with Applied Biosystems QuantiBlot quantitation kit. Polymerase chain reaction (PCR) amplification of DNA samples was performed with AmpFlSTR SGM Plus PCR amplification kit and GenePrint PowerPlex PCR amplification kit. The amplified products were separated and detected by using the Perkin Elmer's ABI PRISM trade mark 310 Genetic Analyser. DNA and data analysis of 17 loci and Amelogenin confirmed the suspicion of brother-sister incest. Since both children had inherited all of the obligate alleles from the alleged father, we could confirm with certainty of 99.999999% that the oldest brother in the family was the biological father of both children. Calculated data showed that even in a case of brother-sister incest, paternity could be proved by the analysis of Amelogenin and 17 DNA loci. PMID:12808731

  9. Genomic sister-disorders of neurodevelopment: an evolutionary approach

    PubMed Central

    Crespi, Bernard; Summers, Kyle; Dorus, Steve

    2009-01-01

    Genomic sister-disorders are defined here as diseases mediated by duplications versus deletions of the same region. Such disorders can provide unique information concerning the genomic underpinnings of human neurodevelopment because effects of diametric variation in gene copy number on cognitive and behavioral phenotypes can be inferred. We describe evidence from the literature on deletions versus duplications for the regions underlying the best-known human neurogenetic sister-disorders, including Williams syndrome, Velocardiofacial syndrome, and Smith–Magenis syndrome, as well as the X-chromosomal conditions Klinefelter and Turner syndromes. These data suggest that diametric copy-number alterations can, like diametric alterations to imprinted genes, generate contrasting phenotypes associated with autistic-spectrum and psychotic-spectrum conditions. Genomically based perturbations to the development of the human social brain are thus apparently mediated to a notable degree by effects of variation in gene copy number. We also conducted the first analyses of positive selection for genes in the regions affected by these disorders. We found evidence consistent with adaptive evolution of protein-coding genes, or selective sweeps, for three of the four sets of sister-syndromes analyzed. These studies of selection facilitate identification of candidate genes for the phenotypes observed and lend a novel evolutionary dimension to the analysis of human cognitive architecture and neurogenetic disorders. PMID:25567849

  10. Malignant Triton Tumors in Sisters with Clinical Neurofibromatosis Type 1

    PubMed Central

    Alina, Basnet; Sebastian, Jofre A.; Gerardo, Capo

    2015-01-01

    Malignant triton tumors (MTTs) are rare and aggressive sarcomas categorized as a subgroup of malignant peripheral nerve sheath tumors (MPNSTs). MTTs arise from Schwann cells of peripheral nerves or existing neurofibromas and have elements of rhabdomyoblastic differentiation. We report the occurrence of MTTs in two sisters. The first patient is a 36-year-old female who presented with left sided chest wall swelling. She also had clinical features consistent with neurofibromatosis type 1 (NF-1). Debulking of the mass showed high-grade malignant peripheral nerve sheath tumor with skeletal muscle differentiation (MTT). The patient was treated with ifosfamide and adriamycin along with radiation. Four years after treatment, she still has no evidence of disease recurrence. Her sister subsequently presented to us at the age of 42 with left sided lateral chest wall pain. Imaging showed a multicompartmental retroperitoneal cystic mass with left psoas involvement. The tumor was resected and, similarly to her sister, it showed high-grade malignant peripheral nerve sheath tumor with rhabdomyoblastic differentiation (MTT). The patient was started on chemotherapy and radiation as described above. PMID:26114002

  11. Broad Phylogenomic Sampling and the Sister Lineage of Land Plants

    PubMed Central

    Timme, Ruth E.; Bachvaroff, Tsvetan R.; Delwiche, Charles F.

    2012-01-01

    The tremendous diversity of land plants all descended from a single charophyte green alga that colonized the land somewhere between 430 and 470 million years ago. Six orders of charophyte green algae, in addition to embryophytes, comprise the Streptophyta s.l. Previous studies have focused on reconstructing the phylogeny of organisms tied to this key colonization event, but wildly conflicting results have sparked a contentious debate over which lineage gave rise to land plants. The dominant view has been that ‘stoneworts,’ or Charales, are the sister lineage, but an alternative hypothesis supports the Zygnematales (often referred to as “pond scum”) as the sister lineage. In this paper, we provide a well-supported, 160-nuclear-gene phylogenomic analysis supporting the Zygnematales as the closest living relative to land plants. Our study makes two key contributions to the field: 1) the use of an unbiased method to collect a large set of orthologs from deeply diverging species and 2) the use of these data in determining the sister lineage to land plants. We anticipate this updated phylogeny not only will hugely impact lesson plans in introductory biology courses, but also will provide a solid phylogenetic tree for future green-lineage research, whether it be related to plants or green algae. PMID:22253761

  12. Healthy Eating

    NSDL National Science Digital Library

    Ms. Ford

    2011-12-11

    Studenst will understand how a healthy diet and exercise can increase the likelihood of physical and mental wellness Read and discover what your body needs to function with the first two websites: Body Needs and Dining Decisions, Feel free to explore, discover how many servings you need of each food group and how to read nutrition labels. After you feel comfortable with the subject, go to the final ...

  13. Horizontal transmission of a human rotavirus vaccine strain—A randomized, placebo-controlled study in twins

    Microsoft Academic Search

    Luis Rivera; Lourdes Mendez Peña; Isabelle Stainier; Paul Gillard; Brigitte Cheuvart; Igor Smolenov; Eduardo Ortega-Barria; Htay Htay Han

    Transmission of excreted vaccine-derived infectious virus from vaccinated to unvaccinated individuals is possible within close contacts. This randomized (1:1), double-blind study evaluated the potential for transmission of human rotavirus vaccine strain, HRV (Rotarix™) from vaccine recipients to unvaccinated close contacts (twins). 100 pairs of healthy twins aged 6–14 weeks at the time of Dose 1 of HRV vaccine\\/placebo were enrolled

  14. Cephalothoracoomphalopagus: a rare type of conjoined twin.

    PubMed

    Koreti, Sunita; Prasad, Nitin; Patell, G Singh

    2014-01-01

    We present a case of female cephalothoracoomphalopagus conjoind twin, which is extremely rare type of conjoined twins. We also review the contemprory knowledge regarding incidence, etiopathogenesis, antenatal diagnosis and outcone or the prognosis of conjoint twins. The case belong to hindu female, no history of consanguineous marriage, ingestion of drugs or exposure to any radiation. History of one abortion and one twin delivery present. Conjoind twin was cephalothoracoomphalopagus type, delivered vaginaly at 30 wks of gestion to a 25 yrs old multigravida. Management of conjoind twin still remain challenges because of multiple congenital anomalies and poor outcome is seen. PMID:24741542

  15. Cephalothoracoomphalopagus: A Rare Type of Conjoined Twin

    PubMed Central

    Koreti, Sunita; Prasad, Nitin; Patell, G. Singh

    2014-01-01

    We present a case of female cephalothoracoomphalopagus conjoind twin, which is extremely rare type of conjoined twins. We also review the contemprory knowledge regarding incidence, etiopathogenesis, antenatal diagnosis and outcone or the prognosis of conjoint twins. The case belong to hindu female, no history of consanguineous marriage, ingestion of drugs or exposure to any radiation. History of one abortion and one twin delivery present. Conjoind twin was cephalothoracoomphalopagus type, delivered vaginaly at 30 wks of gestion to a 25 yrs old multigravida. Management of conjoind twin still remain challenges because of multiple congenital anomalies and poor outcome is seen. PMID:24741542

  16. Twin Dimples Intrigue Scientists

    NASA Technical Reports Server (NTRS)

    2004-01-01

    This image from the Mars Exploration Rover Opportunity is part of the first set of pictures that was returned to Earth after the rover exited 'Eagle Crater.' Scientists are busy analyzing Opportunity's new view of the plains of Meridiani Planum. The plentiful ripples are a clear indication that wind is the primary geologic process currently in effect on the plains. On the left of the image are two depressions--each about a meter (about 3.3 feet) across--that feature bright spots in their centers. One possibility is that the bright material is similar in composition to the rocks in Eagle Crater's outcrop and the surrounding darker material is what's referred to as 'lag deposit,' or erosional remnants that are much harder and more difficult to wear away. These twin dimples might be revealing pieces of a larger outcrop that lies beneath. The depression closest to Opportunity is whimsically referred to as 'Homeplate' and the one behind it as 'First Base.' The rover's panoramic camera is set to take detailed images of the depressions today, on Opportunity's 58th sol. The backshell and parachute that helped protect the rover and deliver it safely to the surface of Mars are also visible near the horizon, in the center of the image. This image was taken by the rover's navigation camera.

  17. The Twin Jet Nebula

    NASA Technical Reports Server (NTRS)

    1997-01-01

    M2-9 is a striking example of a 'butterfly' or a bipolar planetary nebula. Another more revealing name might be the 'Twin Jet Nebula.' If the nebula is sliced across the star, each side of it appears much like a pair of exhausts from jet engines. Indeed, because of the nebula's shape and the measured velocity of the gas, in excess of 200 miles per second, astronomers believe that the description as a super-super-sonic jet exhaust is quite apt. This is much the same process that takes place in a jet engine: The burning and expanding gases are deflected by the engine walls through a nozzle to form long, collimated jets of hot air at high speeds. M2-9 is 2,100 light-years away in the constellation Ophiucus. The observation was taken Aug. 2, 1997 by the Hubble telescope's Wide Field and Planetary Camera 2. In this image, neutral oxygen is shown in red, once-ionized nitrogen in green, and twice-ionized oxygen in blue.

  18. 32. VIEW OF TWIN FALLS MAIN CANAL FROM VICINITY OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    32. VIEW OF TWIN FALLS MAIN CANAL FROM VICINITY OF PROPOSED POWER CANAL, LOOKING UPSTREAM. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  19. 27. VIEW OF TWIN FALLS MAIN CANAL HEADGATE WITH CANAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    27. VIEW OF TWIN FALLS MAIN CANAL HEADGATE WITH CANAL BRIDGE IN DISTANCE; LOOKING SOUTHWEST. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  20. Partnership for Healthy Mouths Healthy Lives

    MedlinePLUS

    ... our Partners     Every Child Deserves a Healthy Smile Dental decay is the most common chronic ... preventing dental pain and disease. The Partnership for Healthy Mouths, Healthy Lives — a group of 36 organizations ...

  1. Plastic strain due to twinning in austenitic TWIP steels

    E-print Network

    Cambridge, University of

    Plastic strain due to twinning in austenitic TWIP steels B. Qin and H. K. D. H. Bhadeshia* Twinning induced plasticity steels are austenitic alloys in which mechanical twinning is a prominent deformation, Twinning, Twinning induced plasticity, Automobiles Introduction Mechanical twinning is a plastic

  2. 150. Photocopy of drawing (taken from Twin Falls Canal Company ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    150. Photocopy of drawing (taken from Twin Falls Canal Company Surveyor's Book #363, Page 42, entitled, 'Diversion Tunnels', located in Twin Falls Canal Company office, Twin Falls, Idaho). PLAN OF DIVERSION TUNNELS, MILNER DAM. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  3. 180. Photocopy of Photograph, Twin Falls Canal Company. E. Pettygro, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    180. Photocopy of Photograph, Twin Falls Canal Company. E. Pettygro, Photographer, date unknown. BLASTING TWIN FALLS CANAL, TWIN FALLS COUNTY; BLASTING COTTONWOOD AREA TO REPLACE FLUME BY RUNNING HIGH LINE THROUGH SOLID ROCK. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  4. Healthy Eating

    NSDL National Science Digital Library

    Mr. Thorpe

    2012-04-30

    It's important to eat the right things to keep our bodies happy and healthy. As you explore these sites, look for ways you can better give your body what it needs. There's still an hour until lunch, and you're hungry. You do have a candy bar that you got for your birthday. It looks really tasty, but is that really what your body needs. Your mom always says they're bad for you, and they'll make you sick. Is that ...

  5. Twins and Non-twin Siblings: Different Estimates of Shared Environmental Influence in Early Childhood

    Microsoft Academic Search

    Gesina Koeppen-Schomerus; Frank M. Spinath; Robert Plomin

    2003-01-01

    win studies typically indicate shared environmental influence for cognitive abilities, especially in early childhood. However, across studies, DZ twin correlations tend to be greater than non-twin sibling correlations, suggesting that twin estimates of shared environment are to some extent specific to twins. We tested this hypothesis in a sample of more than 1800 MZ and 1800 same-sex DZ pairs from

  6. Brief Report: Autistic Traits in Twins vs. Non-Twins--A Preliminary Study

    ERIC Educational Resources Information Center

    Ho, Alexander; Todd, Richard D.; Constantino, John N.

    2005-01-01

    Previous studies have suggested that among affected sib pairs with autism there is an increase in the frequency of twins over what would be expected in comparison to the prevalence of twins in the general population. In this study we sought to determine whether "sub-threshold" autistic traits were more pronounced in twins than in non-twins. The…

  7. Congenital tracheobronchial stenosis in monozygotic twins

    Microsoft Academic Search

    K. S. Wong; R. Lien; T. Y. Lin

    1998-01-01

      \\u000a \\u000a Conclusion This case report shows that tracheobronchial stenosis may present in monozygotic twins. The pattern of malformation in twins\\u000a differs from cases described previously.

  8. Nike Twins Seven Seven: Nigerian Batik Artist.

    ERIC Educational Resources Information Center

    LaDuke, Betty

    1987-01-01

    Chronicles the personal and professional life of Nike Twins Seven Seven (born 1951), a Nigerian batik artist, and her husband, Twins Seven Seven, a musician-artist, both of whom have received international acclaim. (BJV)

  9. 49 CFR 372.221 - Twin Cities.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Transportation 5 2010-10-01 2010-10-01 false Twin Cities. 372.221 Section 372.221 Transportation...ZONES, AND TERMINAL AREAS Commercial Zones § 372.221 Twin Cities. For the purpose of determining commercial...

  10. Maternal Hypomethylation of KvDMR in a Monozygotic Male Twin Pair Discordant for Beckwith-Wiedemann Syndrome

    PubMed Central

    Elalaoui, S.C.; Garin, I.; Sefiani, A.; Perez de Nanclares, G.

    2014-01-01

    Beckwith-Wiedemann syndrome (BWS; OMIM 130650) is a heterogeneous overgrowth syndrome characterized by visceromegaly, macroglossia, tumor predisposition, and other congenital abnormalities. BWS is usually associated with abnormalities of chromosome 11p15, including (epi)genetic changes, paternal disomy and point mutations. A number of identical twin pairs, mostly female, have been reported to be clinically discordant for BWS. Studies of monozygotic twins discordant for BWS provide more information about failure in the DNA methylation maintenance machinery during very early embryonic development. Here, we report a case of monozygotic male twins discordant for BWS phenotype. Methylation analysis of the 2 imprinted domains at 11p15.5 (H19DMR and KvDMR) was performed by methylation-specific MLPA and pyrosequencing of DNA extracted from peripheral blood and buccal swabs of both twins. Hypomethylation at KvDMR was identified in both cell types of the affected twin, whereas his healthy brother presented hypomethylation only in blood cells and a normal methylation profile in buccal swab. For diagnostic purposes, it is important to remember that twins can share fetal circulation and possibly share hematopoietic stem cells early in development; therefore, the affected and unaffected twins can share an epigenotype that will resemble partial hypomethylation. If a patient is a twin, it is valuable to obtain a sample from a tissue other than blood. PMID:24550765

  11. Intensive care of conjoined twins.

    PubMed

    Kobylarz, Krzysztof

    2014-01-01

    Conjoined twinning is one of the most uncommon congenital anomalies. Maintenance in an intensive care setting during this time allows for close monitoring, stabilisation, and nutritional supplementation of the infants as necessary to optimise preoperative growth and development. The birth of conjoined twins is a very difficult and dramatic moment for parents. It is also a very difficult situation for the team of physicians, nurses and other required hospital staff to carry out treatment and care of these specific developmental anomalies. The diagnostics and treatment in this extraordinary situation requires close cooperation of the multidisciplinary medical team, which includes their personal experience and medical knowledge, with a team of intensive care unit nurses. This report presents the rules in cease of conjoined twins during their intensive care unit stay with special reference to the proceedings before and after complete separation. PMID:24858974

  12. Phospholipids and insulin resistance in psychosis: a lipidomics study of twin pairs discordant for schizophrenia

    PubMed Central

    2012-01-01

    Background Several theories have been proposed to conceptualize the pathological processes inherent to schizophrenia. The 'prostaglandin deficiency' hypothesis postulates that defective enzyme systems converting essential fatty acids to prostaglandins lead to diminished levels of prostaglandins, which in turn affect synaptic transmission. Methods Here we sought to determine the lipidomic profiles associated with schizophrenia in twin pairs discordant for schizophrenia as well as unaffected twin pairs. The study included serum samples from 19 twin pairs discordant for schizophrenia (mean age 51 ± 10 years; 7 monozygotic pairs; 13 female pairs) and 34 age and gender matched healthy twins as controls. Neurocognitive assessment data and gray matter density measurements taken from high-resolution magnetic resonance images were also obtained. A lipidomics platform using ultra performance liquid chromatography coupled to time-of-flight mass spectrometry was applied for the analysis of serum samples. Results In comparison to their healthy co-twins, the patients had elevated triglycerides and were more insulin resistant. They had diminished lysophosphatidylcholine levels, which associated with decreased cognitive speed. Conclusions Our findings may be of pathophysiological relevance since lysophosphatidylcholines, byproducts of phospholipase A2-catalyzed phospholipid hydrolysis, are preferred carriers of polyunsaturated fatty acids across the blood-brain barrier. Furthermore, diminishment of lysophosphatidylcholines suggests that subjects at risk of schizophrenia may be more susceptible to infections. Their association with cognitive speed supports the view that altered neurotransmission in schizophrenia may be in part mediated by reactive lipids such as prostaglandins. PMID:22257447

  13. Twin Reversed Arterial Perfusion Syndrome (TRAP or Acardiac Twin)-A Case Report

    PubMed Central

    R., Kalyani; Bindra, Mandeep S.

    2014-01-01

    Twin reversed arterial perfusion (TRAP) syndrome is a rare condition (0.3:10,000 births) that occurs in monochorionic twin pregnancies, resulting in coexistence of a normal “pump” twin and an acardiac twin. The acardiac twin is dependent upon the normal twin to provide circulation by means of vascular anastomosis. Many of the bizarre defects are felt to be caused by low oxygen tension and this causes dramatic alteration in the twin fetal physiology and high prenatal mortality. The acardiac twin is a parasite, putting the pump fetus at risk of high output cardiac failure. Overall only 50% of pump twins survive. We present a case in a twenty year female, gravida two, para one, living one, full term normal pregnancy, ultrasound showed twin pregnancy. Following delivery, the first fetus survived only for one day and the second fetus showed features of TRAP syndrome. PMID:24596758

  14. Chromosome condensation and sister chromatid pairing in budding yeast

    PubMed Central

    1994-01-01

    We have developed a fluorescent in situ hybridization (FISH) method to examine the structure of both natural chromosomes and small artificial chromosomes during the mitotic cycle of budding yeast. Our results suggest that the pairing of sister chromatids: (a) occurs near the centromere and at multiple places along the chromosome arm as has been observed in other eukaryotic cells; (b) is maintained in the absence of catenation between sister DNA molecules; and (c) is independent of large blocks of repetitive DNA commonly associated with heterochromatin. Condensation of a unique region of chromosome XVI and the highly repetitive ribosomal DNA (rDNA) cluster from chromosome XII were also examined in budding yeast. Interphase chromosomes were condensed 80-fold relative to B form DNA, similar to what has been observed in other eukaryotes, suggesting that the structure of interphase chromosomes may be conserved among eukaryotes. While additional condensation of budding yeast chromosomes were observed during mitosis, the level of condensation was less than that observed for human mitotic chromosomes. At most stages of the cell cycle, both unique and repetitive sequences were either condensed or decondensed. However, in cells arrested in late mitosis (M) by a cdc15 mutation, the unique DNA appeared decondensed while the repetitive rDNA region appeared condensed, suggesting that the condensation state of separate regions of the genome may be regulated differently. The ability to monitor the pairing and condensation of sister chromatids in budding yeast should facilitate the molecular analysis of these processes as well as provide two new landmarks for evaluating the function of important cell cycle regulators like p34 kinases and cyclins. Finally our FISH method provides a new tool to analyze centromeres, telomeres, and gene expression in budding yeast. PMID:8175878

  15. Growth twinning in magnesium oxide smoke crystals

    Microsoft Academic Search

    R. R. Cowley; R. L. Segall; R. St. C. Smart; C. Smart; P. S. Turner

    1979-01-01

    Growth twins in magnesium oxide are shown to occur when magnesium is burnt in air in the presence of water vapour. The twins are coherent and the external morphology shows mirror symmetry across the {111} composition plane. The significance of the existence and form of these twins in such a highly ionic material is considered in terms of the structure

  16. Twin Cities Metro Advanced Practice Center

    E-print Network

    Twin Cities Metro Advanced Practice Center Food Safety Self Inspection Checklist #12;Table-20 Vietnamese..............................21-22 #12;Food Safety Self Inspection Checklist Twin Cities Metro has expired. #12;Food Safety Self Inspection Checklist Twin Cities Metro Advanced Practice Center

  17. Conjoined twins – the Cape Town experience

    Microsoft Academic Search

    S. Cywes; A. J. W. Millar; H. Rode; R. A. Brown

    1997-01-01

    This paper records our experience in the management of 25 sets of conjoined twins seen over a 32 year period (1964?–?1996). The twins were classified into 14 complete and symmetrical sets and 11 incomplete or heteropagus. The 14 symmetrical sets included 9 thoracopagus, 2 ischiopagus, 1 craniopagus and 1 omphalopagus twins. In the incomplete heteropagus group there was 1 ischiopagus,

  18. Sister chromatid exchanges in human lymphocytes treated with silica.

    PubMed Central

    Pairon, J C; Jaurand, M C; Kheuang, L; Janson, X; Brochard, P; Bignon, J

    1990-01-01

    The abilities of Min U Sil quartz or tridymite particles to induce sister chromatid exchanges (SCEs) in cultures of human lymphocytes plus monocytes or of human purified lymphocytes were investigated. With cultures of lymphocytes plus monocytes the level of SCEs was significantly enhanced after treatment with tridymite at the highest dose tested (50 micrograms/cm2). No effect was observed with purified lymphocytes. Quartz did not give clear cut results. Complementary experiments with tridymite filtrates suggested that phagocytosis of tridymite particles by monocytes was a necessary step for the induction of SCEs in human lymphocytes. Images PMID:2155649

  19. Healthy Water Healthy People Field Monitoring Guide

    ERIC Educational Resources Information Center

    Project WET Foundation, 2003

    2003-01-01

    This 100-page manual serves as a technical reference for the "Healthy Water, Healthy People Water Quality Educators Guide" and the "Healthy Water Healthy People Testing Kits". Yielding in-depth information about ten water quality parameters, it answers questions about water quality testing using technical overviews, data interpretation guidelines,…

  20. Perturbation of HP1 localization and chromatin binding ability causes defects in sister-chromatid cohesion

    Microsoft Academic Search

    Akira Inoue; Judith Hyle; Mark S. Lechner; Jill M. Lahti

    2008-01-01

    Sister-chromatid cohesion, the machinery used in eukaryote organisms to prevent aneuploidy, tethers sister chromatids together after their replication in S phase until mitosis. Previous studies in fission yeast, Drosophila and mammals have demonstrated the requirement for the heterochromatin formation pathway for proper centromeric cohesion. However, the exact role of heterochromatin protein 1 (HP1) in sister-chromatid cohesion in mammals is still

  1. Pregnancy risk among the younger sisters of pregnant and childbearing adolescents.

    PubMed

    East, P L; Felice, M E

    1992-04-01

    There is increasing evidence that younger sisters of childbearing teenagers are at increased risk for adolescent childbearing. We critically review this research and discuss three plausible theoretical explanations (social modeling, shared parenting influences, and shared societal risk) why the younger sisters of childbearing adolescents would themselves be at risk for teenage pregnancy. Considerations for preventive interventions aimed at the younger sisters of pregnant teenagers and directions for future research are discussed. PMID:1577959

  2. NOTE: Increasing cardiac output and decreasing oxygenation sequence in pump twins of acardiac twin pregnancies

    NASA Astrophysics Data System (ADS)

    van Gemert, Martin J. C.; Umur, Asli; van den Wijngaard, Jeroen P. H. M.; Van Bavel, Ed; Vandenbussche, Frank P. H. A.; Nikkels, Peter G. J.

    2005-02-01

    An acardiac twin pregnancy is a rare but serious complication of monochorionic twinning and consists of an acardiac twin and a pump twin. The acardiac twin is a severely malformed fetus that lacks most organs, particularly a heart, but grows during pregnancy because it is perfused by the developmentally normal pump twin via a set of arterioarterial and venovenous placental anastomoses. Pump twins die intrauterine or neonatally in about 50% of the cases. Because the effects of an acardiac mass on the pump twin's development are incompletely known, methods for outcome prognosis are currently not available. We sought to derive simple relations for the pump twin's excess cardiac output and decreased oxygenation and to use available clinical cases for a preliminary test of the model. As a method, we used a theoretical flow model to represent the fetoplacental circulation of an acardiac twin pregnancy and estimated blood deoxygenation and reoxygenation following perfusion of the two bodies and placentas, respectively. The results show the pump twin's excess cardiac output and decrease of venous oxygen saturation to depend on the ratio of pump twin to acardiac twin umbilical blood flow, whose ratio can be measured by ultrasonography. The clinical cases show a decreasing umbilical flow ratio with gestation. In conclusion, prospective serial study is necessary to test whether measurement of umbilical flow ratios allows monitoring the pump twin's pathophysiologic development, possibly resulting in a guideline for prognosis of pump twin survival.

  3. Healthy Sleep

    NSDL National Science Digital Library

    Who doesn't love a good night's sleep? The Division of Sleep Medicine at Harvard and WGBH have collaborated to produce the Healthy Sleep website to help "illuminate the relevance of sleep, explain the underlying science of sleep, and, most importantly, provide practical information for getting the sleep you need." Visitors interested in getting the sleep they need will find the many videos and interactive features here well worth their time. Under the "Why Sleep Matters" link, visitors will find an interactive timeline entitled "Historical and Cultural Perspectives of Sleep". The "Consequences of Insufficient Sleep" gives visitors the choice of several short videos to watch, including those that address the consequences of driving while drowsy, the link between disease risk and poor sleep, and the public safety and performance issues that arise due to insufficient sleep. The "Getting the Sleep You Need" link has many tips for visitors on how to approach poor sleep habits, including when to seek treatment.

  4. Four twins for a paradox: on "sensitive" twins and the biological counterpart of the "twin paradox".

    PubMed

    Ascioti, Fortunato A

    2009-03-01

    Monozygotic twin (MZT) epigenetic development, i.e., aging, diverges largely in time despite the initially very small genetic differences between MZTs. This fact is interpreted as a "sensitivity to initial conditions" phenomenon, a common property of either deterministic or stochastic chaotic systems. Some of the biotheoretical implications stemming from this empirical observation are briefly discussed here, while an actual measure of MZT epigenetic time divergence is given through an estimate of the (Stochastic) Lyapunov exponents (LEs) (i.e., the rate of exponential time divergence). These results suggest a reconsideration of the Langevin-Einstein thought experiment known as the "twin paradox." At least four twins are necessary in order to take into account the inertially independent divergent aging described here. Alternatively, LE estimates, like those given here, should be used. Finally suggested in the actual special-relativity experiments is the replacement of clocks with some nonlinear (chaotic) forced oscillator. PMID:19334992

  5. A Powerful Twin Arrives

    NASA Astrophysics Data System (ADS)

    1999-11-01

    First Images from FORS2 at VLT KUEYEN on Paranal The first, major astronomical instrument to be installed at the ESO Very Large Telescope (VLT) was FORS1 ( FO cal R educer and S pectrograph) in September 1998. Immediately after being attached to the Cassegrain focus of the first 8.2-m Unit Telescope, ANTU , it produced a series of spectacular images, cf. ESO PR 14/98. Many important observations have since been made with this outstanding facility. Now FORS2 , its powerful twin, has been installed at the second VLT Unit Telescope, KUEYEN . It is the fourth major instrument at the VLT after FORS1 , ISAAC and UVES.. The FORS2 Commissioning Team that is busy installing and testing this large and complex instrument reports that "First Light" was successfully achieved already on October 29, 1999, only two days after FORS2 was first mounted at the Cassegrain focus. Since then, various observation modes have been carefully tested, including normal and high-resolution imaging, echelle and multi-object spectroscopy, as well as fast photometry with millisecond time resolution. A number of fine images were obtained during this work, some of which are made available with the present Press Release. The FORS instruments ESO PR Photo 40a/99 ESO PR Photo 40a/99 [Preview - JPEG: 400 x 345 pix - 203k] [Normal - JPEG: 800 x 689 pix - 563kb] [Full-Res - JPEG: 1280 x 1103 pix - 666kb] Caption to PR Photo 40a/99: This digital photo shows the twin instruments, FORS2 at KUEYEN (in the foreground) and FORS1 at ANTU, seen in the background through the open ventilation doors in the two telescope enclosures. Although they look alike, the two instruments have specific functions, as described in the text. FORS1 and FORS2 are the products of one of the most thorough and advanced technological studies ever made of a ground-based astronomical instrument. They have been specifically designed to investigate the faintest and most remote objects in the universe. They are "multi-mode instruments" that may be used in several different observation modes. FORS2 is largely identical to FORS1 , but there are a number of important differences. For example, it contains a Mask Exchange Unit (MXU) for laser-cut star-plates [1] that may be inserted at the focus, allowing a large number of spectra of different objects, in practice up to about 70, to be taken simultaneously. Highly sophisticated software assigns slits to individual objects in an optimal way, ensuring a great degree of observing efficiency. Instead of the polarimetry optics found in FORS1 , FORS2 has new grisms that allow the use of higher spectral resolutions. The FORS project was carried out under ESO contract by a consortium of three German astronomical institutes, the Heidelberg State Observatory and the University Observatories of Göttingen and Munich. The participating institutes have invested a total of about 180 man-years of work in this unique programme. The photos below demonstrate some of the impressive possibilities with this new instrument. They are based on observations with the FORS2 standard resolution collimator (field size 6.8 x 6.8 armin = 2048 x 2048 pixels; 1 pixel = 0.20 arcsec). In addition, observations of the Crab pulsar demonstrate a new observing mode, high-speed photometry. Protostar HH-34 in Orion ESO PR Photo 40b/99 ESO PR Photo 40b/99 [Preview - JPEG: 400 x 444 pix - 220kb] [Normal - JPEG: 800 x 887 pix - 806kb] [Full-Res - JPEG: 2000 x 2217 pix - 3.6Mb] The Area around HH-34 in Orion ESO PR Photo 40c/99 ESO PR Photo 40c/99 [Preview - JPEG: 400 x 494 pix - 262kb] [Full-Res - JPEG: 802 x 991 pix - 760 kb] The HH-34 Superjet in Orion (centre) PR Photo 40b/99 shows a three-colour composite of the young object Herbig-Haro 34 (HH-34) , now in the protostar stage of evolution. It is based on CCD frames obtained with the FORS2 instrument in imaging mode, on November 2 and 6, 1999. This object has a remarkable, very complicated appearance that includes two opposite jets that ram into the surrounding interstellar matter. This structure is produced by a machine-gu

  6. Molecular analysis of the gut microbiota of identical twins with Crohn's disease

    SciTech Connect

    Jansson, Janet; Dicksved, Johan; Halfvarson, Jonas; Rosenquist, Magnus; Jarnerot, Gunnar; Tysk, Curt; Apajalahti, Juha; Engstrand, Lars; Jansson, Janet K.

    2008-03-14

    Increasing evidence suggests that a combination of host genetics and the composition of the gut microbiota are important for development of Crohn's disease (CD). Our aim was to study identical twins with CD to determine microbial factors independently of host genetics. Fecal samples were studied from 10 monozygotic twin pairs with CD (discordant n=6, concordant n=4) and 8 healthy twin pairs. DNA was extracted, 16S rRNA genes were PCR amplified and T-RFLP fingerprints generated using general bacterial and Bacteroides group specific primers. The microbial communities were also profiled based on their % G+C contents. Bacteroides 16S rRNA genes were cloned and sequenced from a subset of the samples. The bacterial diversity in each sample and similarity indices between samples were estimated based on the T-RFLP data using a combination of statistical approaches. Healthy individuals had a significantly higher bacterial diversity compared to individuals with CD. The fecal microbial communities were more similar between healthy twins than between twins with CD, especially when these were discordant for the disease. The microbial community profiles of individuals with ileal CD were significantly different from healthy individuals and those with colonic CD. Also, CD individuals had a lower relative abundance of B. uniformis and higher relative abundances of B. ovatus and B. vulgatus. Our results suggest that genetics and/or environmental exposure during childhood in part determine the gut microbial composition. However, CD is associated with dramatic changes in the gut microbiota and this was particularly evident for individuals with ileal CD.

  7. Cohort Profile: Swedish Twin Study on Prediction and Prevention of Asthma (STOPPA).

    PubMed

    Almqvist, Catarina; Örtqvist, Anne K; Ullemar, Vilhelmina; Lundholm, Cecilia; Lichtenstein, Paul; Magnusson, Patrik K E

    2015-06-01

    Asthma is a common childhood disease and several risk factors have been identified; however, the impact of genes and environment is not fully understood. The aim of the Swedish Twin study On Prediction and Prevention of Asthma (STOPPA) is to identify environmental (birth characteristics and early life) and genetic (including epigenetic) factors as determinants for asthmatic disease. Based on the Child and Adolescent Twin Study in Sweden (CATSS) (parental interview at 9 or 12 years, N ~23,900) and an asthma and/or wheezing algorithm, we identified a sample of monozygotic (MZ) and dizygotic (DZ) same-sexed twin pairs. The twin pairs were classified as asthma concordant (ACC), asthma discordant (ADC) and healthy concordant (HCC). A sample of 9- to 14-year-old twins and their parents were invited to participate in a clinical examination. Background characteristics were collected in questionnaires and obtained from the National Health Registers. A clinical examination was performed to test lung function and capacity (spirometry with reversibility test and exhaled nitric oxide) and collect blood (serology and DNA), urine (metabolites), feces (microbiota), and saliva (cortisol). In total, 376 twin pairs (752 individual twins) completed the study, response rate 52%. All participating twins answered the questionnaire and >90% participated in lung function testing, blood-, and saliva sampling. This article describes the design, recruitment, data collection, measures, and background characteristics, as well as ongoing and planned analyses in STOPPA. Potential gains of the study include the identification of biomarkers, the emergence of candidates for drug development, and new leads for prevention of asthma and allergic disease. PMID:25900604

  8. [Neuropsychological tests and smooth pursuit eye movements in schizophrenic twins].

    PubMed

    Preiss, J; Hynek, K; Dvoráková, M; Zvárová, J

    1993-10-01

    The authors compares results of neuropsychological tests/Halstead-Reitan Neuropsychological Battery, Stroop test, Wechsler Memory Scale, Seashore Tonal Memory Test/with results of smooth pursuit eye movements in nine pairs of twins/5 monozygotic and 4 dizygotic pairs/. In all instances at least one twin suffered from schizophrenia. The majority of neuropsychological tests differentiated clearly schizophrenic and healthy twins. Of seven parameters of smooth pursuit eye movements big saccades differentiated significantly. The authors found also correlations between neuropsychological tests and smooth pursuit eye movements. Significant correlations pertained to motor velocity (correlation of the Oscillation test with big saccades and with small saccades), complex psychomotor abilities (correlation of the Tactual Performance Test-Localization with big saccades), general indicators of cerebral activity or neuropsychological performance (correlation of the Tonal Memory test with big saccades and correlation of the Rhythm test with the amplitude of the curve), memory (correlation of the memory quotient MQ and the Logical Memory sub-test with small saccades) and work performance during a perception or psychic load (correlation of Stroop sub-test with big saccades). The method of smooth pursuit eye movements is not time consuming and does not involve major demands on the patient's cooperation. On the other hand, neuropsychological tests have the advantage that they reveal the impact of possible pathological conditions of the brain on behaviour. On the whole the results support the hypothesis that in schizophrenic patients a disease with structural or functional abnormalities of the brain is involved. PMID:8269522

  9. Transient Sister Chromatid Separation and Elastic Deformation of Chromosomes during Mitosis in Budding Yeast

    Microsoft Academic Search

    Xiangwei He; Saurabh Asthana; Peter K. Sorger

    2000-01-01

    The accurate segregation of chromosomes at mitosis requires that all pairs of chromatids bind correctly to microtubules prior to the dissolution of sister cohesion and the initiation of anaphase. By analyzing the motion of GFP-tagged S. cerevisiae chromosomes, we show that kinetochore-microtubule attachments impose sufficient tension on sisters during prometaphase to transiently separate centromeric chromatin toward opposite sides of the

  10. Spite: Evolution Finally Gets Nasty Altruism's "neglected ugly sister" comes to the party | By

    E-print Network

    Wenseleers, Tom

    Spite: Evolution Finally Gets Nasty Altruism's "neglected ugly sister" comes to the party of behavior.1 Spite, the "neglected ugly sister of altruism,"2 is undergoing something of a renaissance are relatively straightforward: The actor benefits from its own behavior. Altruism and spite, in which the actor

  11. The younger sisters of childbearing adolescents: their attitudes, expectations, and behaviors.

    PubMed

    East, P L

    1996-04-01

    To examine the precursors of the disproportionately high rates of early childbearing among the younger sisters of adolescent mothers, this study compared the attitudes, expectations, and behaviors of early adolescent girls (M age = 12.93) who had an adolescent childbearing sister (n = 75) to those of early adolescent girls who had only adolescent nonchildbearing sisters (n = 348). Results indicated that the younger sisters of childbearing adolescents were consistently different from the younger sisters of nonchildbearing adolescents on key characteristics known to be correlated with early sexual activity and adolescent childbearing: that is, they were more accepting of nonmarital adolescent childbearing, perceived younger ages for typical life-course transitions (best age to get married, have first child), had more pessimistic school and career expectations, and were more likely to have engaged in problem behaviors (smoke cigarettes, skip school). These younger sister characteristics were associated with a nonvirgin sexual status in the current sample and with high closeness and high rivalry with the childbearing sister but could not be accounted for by such within-family experiences as subjects' mothers' permissiveness or lack of mother-daughter communication. Findings suggest the mechanisms by which the younger sisters of childbearing teens themselves become vulnerable to early parenthood. PMID:8625714

  12. Sister chromatid exchange frequency in human lymphocytes exposed to ionizing radiation in vivo and in vitro.

    PubMed

    Gundy, S; Varga, L; Bender, M A

    1984-10-01

    This paper reports statistically significant elevations in peripheral blood lymphocyte sister chromatid exchange frequencies in persons occupationally exposed to low levels of ionizing radiation when compared with unexposed persons. Low doses of X or gamma rays administered in vitro also produce significant elevations in sister chromatid exchange frequencies, though the magnitude of the increases is dependent upon culture medium and other factors. PMID:6494431

  13. Insulin Resistance in the Sisters of Women with Polycystic Ovary Syndrome: Association with

    E-print Network

    Wang, Steve C.

    Insulin Resistance in the Sisters of Women with Polycystic Ovary Syndrome: Association This study was performed to determine whether the sisters of women with polycystic ovary syndrome (PCOS) have Endocrinol Metab 87: 2128­2133, 2002) POLYCYSTIC OVARY syndrome (PCOS) is a disorder of unknown etiology

  14. Endless tests: guidelines for analysing non-nested sister-group comparisons

    E-print Network

    Vamosi, Steven

    ; Vamosi and Vamosi, 2004) in plants. Heilbuth (2000), for example, used sister-group comparisons/or higher extinction rates of dioecious lineages. This conclusion was based on the observation that dioecious lineages tended to have fewer species than their non-dioecious sister groups. If a single well

  15. Studies of twins indicate that genetics influence dietary intake.

    PubMed

    Hasselbalch, Ann Louise; Heitmann, Berit L; Kyvik, Kirsten O; Sørensen, Thorkild I A

    2008-12-01

    Habitual dietary intake is a complex behavior that may have both biological and nonbiological bases. We estimated the contribution of genetic and environmental influences on dietary intake in a large population-based sample of healthy twins. Data originated from a cross-sectional study of 600 male and female healthy twin pairs with self-reported food consumption frequency using a validated questionnaire with 247 foods and recipes. Estimates of relative proportion of additive genetic, nonadditive genetic, shared environmental, and unshared environmental effects on various aspects of dietary intake were obtained by quantitative genetic modeling of twin data based on linear structural equations. The analyses demonstrated genetic influence on total energy, macronutrient energy, and dietary fiber intakes, the glycemic index and the glycemic load of the foods consumed, and the dietary energy density, with significant heritability estimates ranging from 0.25 (0.11-0.38) to 0.47 (0.31-0.60) in men and 0.32 (0.12-0.48) to 0.49 (0.35-0.61) in women. When analyzing dietary intake as the intake of energy from 20 food groups, the genetic and environmental influences differed among food groups and between gender. For some food groups (fruit for both genders, poultry and eggs for men), no genetic influence was found, whereas nonadditive genetic effects were demonstrated for other food groups (juices and eggs for women). A number of food groups had shared environmental influences (potatoes, vegetables, fruits, poultry, fish, margarine, and candy). These results provide evidence for both genetic and shared environmental effects on dietary intake. Although the remaining nonshared environmental effects include measurement errors, there appears to be considerable potential for individually modifiable effects. PMID:19022965

  16. Healthy Weights for Healthy Older Adults

    MedlinePLUS

    ... For Women For Seniors Healthy Weights for Healthy Older Adults Published June 04, 2014 Print Email Men and ... dramatic difference in the quality of life for older adults. You are never too old to enjoy the ...

  17. Why the Healing Gods Are Twins

    PubMed Central

    Hankoff, Leon D.

    1977-01-01

    The association of twins with health-giving powers is widespread in mythology, folklore, and religion. The Ashvins of the Rig-Veda, the classical Dioscuri, and the early Christian saints Cosmos and Damian are among the many examples of twins divinely empowered in the area of health and fertility. A characteristic set of attributes of twins recurs in different mythologies of wide distribution. In addition to healing, divine twins are often empowered with the ability to revive the dead, increase the fertility of man, animals, and crops, influence the weather, predict the future, and insure victory in battle. In some traditional societies these special attributes are thought to extend to all of the twins and their parents in the tribe. Ancient and primitive societies supposed that the birth of twins was associated with divine influence, the mother having been visited or otherwise affected by supernatural powers. A frequent explanation was that twins were the result of superfetation, a divine impregnation occurring along with that by the lawful husband. The specific powers of divine twins appear to be a reflection of the particular form of origin of twins through divine interference with the fertilization process. The twins thus share some of the powers of the divine parent, particularly those pertaining to fertility. Their dual paternity and its inherent competition is related to their martial interests as well as their ability to resolve ambivalent or ambiguous situations and predict outcomes. PMID:560764

  18. Why the healing gods are twins.

    PubMed

    Hankoff, L D

    1977-01-01

    The association of twins with health-giving powers is widespread in mythology, folklore, and religion. The Ashvins of the Rig-Veda, the classical Dioscuri, and the early Christian saints Cosmos and Damian are among the many examples of twins divinely empowered in the area of health and fertility. A characteristic set of attributes of twins recurs in different mythologies of wide distribution. In addition to healing, divine twins are often empowered with the ability to revive the dead, increase the fertility of man, animals, and crops, influence the weather, predict the future, and insure victory in battle. In some traditional societies these special attributes are thought to extend to all of the twins and their parents in the tribe.Ancient and primitive societies supposed that the birth of twins was associated with divine influence, the mother having been visited or otherwise affected by supernatural powers. A frequent explanation was that twins were the result of superfetation, a divine impregnation occurring along with that by the lawful husband. The specific powers of divine twins appear to be a reflection of the particular form of origin of twins through divine interference with the fertilization process. The twins thus share some of the powers of the divine parent, particularly those pertaining to fertility. Their dual paternity and its inherent competition is related to their martial interests as well as their ability to resolve ambivalent or ambiguous situations and predict outcomes. PMID:560764

  19. Ocular manifestations of Noonan syndrome in twin siblings: A case report of keratoconus with acute corneal hydrops

    PubMed Central

    Lee, Anna; Sakhalkar, Monali V

    2014-01-01

    Ocular manifestations of Noonan syndrome (NS) in a set of healthy 20-year-old African-American fraternal twins are reported with emphasis on a rare finding of keratoconus with acute corneal hydrops in one twin. Both the twins had learning disabilities and attended a special needs school. Evaluation included visual acuity assessment, tonometry and external eye, slit lamp and dilated fundus examinations, topography with Pentacam and external photographs. The first case was more remarkable as keratoconus with acute corneal hydrops was observed. The patient presented with severe cloudy vision that had worsened over a span of 1 month. It improved significantly on follow-up. The second case included a unique constellation of ocular pathology that highlights the diversity of NS manifestations even amongst twins. Conservative treatment of keratoconus with acute corneal hydrops in a NS patient helped largely resolve the patient's condition. We report the diverse spectrum of ocular manifestations associated with this rare congenital disorder. PMID:25579364

  20. Lifestyle factors in monozygotic and dizygotic twins.

    PubMed

    Heller, R F; O'Connell, D L; Roberts, D C; Allen, J R; Knapp, J C; Steele, P L; Silove, D

    1988-01-01

    In examining genetic influences on biological variables using twins, it may be important to examine the distribution between and within twin pairs of demographic and lifestyle factors that may themselves affect the biological variable being studied. We explored the distribution of demographic and lifestyle factors that may affect blood lipid levels or ischaemic heart disease (IHD) risk among a sample of 106 monozygotic (MZ) and 94 like-sex dizygotic (DZ) twin pairs. In our sample, MZ twins were statistically significantly different from DZ twins only in marital status, cigarette smoking habits, and the ratio of polyunsaturated to saturated fat (P:S ratio) in their dietary intake. The latter variable was among many dietary variables examined (using 4-day weighed food diaries), and the size of the difference in intake was small. When comparisons were made of the similarities within twin pairs, we found members of MZ twin pairs to be statistically significantly closer than DZ twins in educational achievement, occupation, cigarette smoking, and exercise habits, and the number of days a week on which alcohol was consumed. These last three variables were consistently closer among twins with closer contact than among those with a smaller degree of current shared environment. For 12 of the 13 nutrients examined, the within-pair correlations were higher for MZ than for DZ twins, although our test for significant genetic variance showed statistical significance only for intake of complex carbohydrates. We conclude that MZ twins share demographic and lifestyle factors that might influence the risk of IHD and blood lipid levels to a greater degree than do DZ twins, although it is difficult to say if these similarities in lifestyle result from genetic influences or not. Nevertheless, ascribing differences between correlations in MZ and DZ twin pairs for lipid levels as being purely "genetic"--as implicit in conventional measures of heritability--is likely to overestimate the influence of genetic factors. PMID:3215506

  1. 187. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    187. Photocopy of drawing, Twin Falls Canal Company, date unknown. TOPOGRAPHICAL MAP OF MILNER DAM LOCATION, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT MAP. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  2. 183. Photocopy of map (Twin Falls Canal Company). TOPOGRAPHICAL MAP ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    183. Photocopy of map (Twin Falls Canal Company). TOPOGRAPHICAL MAP OF MILNER DAM SITE, TWIN FALLS COUNTY, MILNER, IDAHO; MAP, LEFT SIDE ONLY. CROSS REFERENCE: ID-15-192. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  3. 192. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    192. Photocopy of drawing, Twin Falls Canal Company, date unknown. TOPOGRAPHICAL MAP (DAM DRAWN IN), MILNER SITE, TWIN FALLS COUNTY, MILNER, IDAHO; RIGHT SIDE OF MAP (LEFT ON ID-15-183). - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  4. 155. Photocopy of transit book (taken from Twin Falls Canal ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    155. Photocopy of transit book (taken from Twin Falls Canal Company Surveyor's Transit Book #405T, Page 1, #46 Division One). STATEMENT RE: SURVEY ALIGNMENT 3/03, TWIN FALLS COUNTY, MILNER, IDAHO. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  5. 158. Photocopy of transit book (taken from Twin Falls Canal ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    158. Photocopy of transit book (taken from Twin Falls Canal Company Transit Book #404T, Page 3, #46, Division One). START OF MAIN CANAL SURVEY, TWIN FALLS COUNTY, MILNER, IDAHO. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  6. 189. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    189. Photocopy of drawing, Twin Falls Canal Company, date unknown. ROCK CREEK CROSSING, LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  7. 179. Photocopy of Photograph, Twin Falls Canal Company, Bisbee Photo, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    179. Photocopy of Photograph, Twin Falls Canal Company, Bisbee Photo, September, 1912. Photographer unknown. VIEW OF LOW LINE CANAL, TWIN FALLS COUNTY; VIEW OF LOW LINE CANAL IN PETE LINK'S FIELD. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  8. 177. Photocopy of Photograph, Twin Falls Canal Company, Bisbee Photo, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    177. Photocopy of Photograph, Twin Falls Canal Company, Bisbee Photo, September, 1912. Photographer unknown. COTTONWOOD FLUME, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; SOUTH VIEW FROM UPPER SIDE. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  9. Keep Your Kidneys Healthy

    MedlinePLUS

    ... what to do if you have kidney disease . Healthy Eating Tips Small changes to your diet can make a big difference. See Food Tips and Healthy Eating Ideas fact sheet for inspiration. Learn about healthy ...

  10. Healthy Eating for Preschoolers

    MedlinePLUS

    Healthy Eating Get your child on the path to healthy eating. Focus on the meal and each other. Your ... child’s throat—about the size of a nickel. Healthy Eating There are many ways to divide the Daily ...

  11. Evidence for chromosomal replicons as units of sister chromatid exchanges.

    PubMed

    Lugo, M H; Rauchfuss, H S; Zakour, H R; Allen, J W; Hozier, J C

    1989-06-01

    Chromosomal replicons have been described as the cytological counterpart of DNA replicon clusters and have previously been studied in vitro using premature chromosome condensation-sister chromatid differentiation (PCC-SCD) techniques. Chromosomal replicons are visualized as small SCD segments in S-phase cells, and measurement of these segments can provide estimates of relative chromosomal replicon size corresponding to DNA replicon clusters functioning coordinately in S-phase. Current hypotheses of sister chromatid exchange (SCE) formation postulate that sites of SCE induction are associated with active replicons or replicon clusters. We have applied the PCC-SCD technique to in vivo studies of mouse bone marrow cells that have been treated with cyclophosphamide (CP) for two cell cycles. We have been able to visualize chromosomal replicons, as well as SCEs which have been induced in vivo by CP treatment, simultaneously in the same cells. Chromosomal replicons visualized as small SCD segments were measured in PCC cells classified at early or late S-phase based on SCD segment size prevalence. Early S-phase (E/S) PCC cells contained 90% of the SCD segments measured clustered in a segment size range of 0.1 to 0.8 micron with a peak value around 0.3 to 0.6 micron regardless of CP treatment. As the cells progressed through S-phase, late S-phase (L/S) PCC cells were characterized by the appearance of larger SCD segments and even whole SCD chromosomes in addition to small SCD segments.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:2670484

  12. The geography and ecology of plant speciation: range overlap and niche divergence in sister species

    PubMed Central

    Anacker, Brian L.; Strauss, Sharon Y.

    2014-01-01

    A goal of evolutionary biology is to understand the roles of geography and ecology in speciation. The recent shared ancestry of sister species can leave a major imprint on their geographical and ecological attributes, possibly revealing processes involved in speciation. We examined how ecological similarity, range overlap and range asymmetry are related to time since divergence of 71 sister species pairs in the California Floristic Province (CFP). We found that plants exhibit strikingly different age-range correlation patterns from those found for animals; the latter broadly support allopatric speciation as the primary mode of speciation. By contrast, plant sisters in the CFP were sympatric in 80% of cases and range sizes of sisters differed by a mean of 10-fold. Range overlap and range asymmetry were greatest in younger sisters. These results suggest that speciation mechanisms broadly grouped under ‘budding’ speciation, in which a larger ranged progenitor gives rise to a smaller ranged derivative species, are probably common. The ecological and reproductive similarity of sisters was significantly greater than that of sister–non-sister congeners for every trait assessed. However, shifts in at least one trait were present in 93% of the sister pairs; habitat and soil shifts were especially common. Ecological divergence did not increase with range overlap contrary to expectations under character displacement in sympatry. Our results suggest that vicariant speciation is more ubiquitous in animals than plants, perhaps owing to the sensitivity of plants to fine-scale environmental heterogeneity. Despite high levels of range overlap, ecological shifts in the process of budding speciation may result in low rates of fine-scale spatial co-occurrence. These results have implications for ecological studies of trait evolution and community assembly; despite high levels of sympatry, sister taxa and potentially other close relatives, may be missing from local communities. PMID:24452025

  13. Replication-Dependent Sister Chromatid Recombination in Rad1 Mutants of Saccharomyces Cerevisiae

    PubMed Central

    Kadyk, L. C.; Hartwell, L. H.

    1993-01-01

    Homolog recombination and unequal sister chromatid recombination were monitored in rad1-1/rad1-1 diploid yeast cells deficient for excision repair, and in control cells, RAD1/rad1-1, after exposure to UV irradiation. In a rad1-1/rad1-1 diploid, UV irradiation stimulated much more sister chromatid recombination relative to homolog recombination when cells were irradiated in the G(1) or the G(2) phases of the cell cycle than was observed in RAD1/rad1-1 cells. Since sister chromatids are not present during G(1), this result suggested that unexcised lesions can stimulate sister chromatid recombination events during or subsequent to DNA replication. The results of mating rescue experiments suggest that unexcised UV dimers do not stimulate sister chromatid recombination during the G(2) phase, but only when they are present during DNA replication. We propose that there are two types of sister chromatid recombination in yeast. In the first type, unexcised UV dimers and other bulky lesions induce sister chromatid recombination during DNA replication as a mechanism to bypass lesions obstructing the passage of DNA polymerase, and this type is analogous to the type of sister chromatid exchange commonly observed cytologically in mammalian cells. In the second type, strand scissions created by X-irradiation or the excision of damaged bases create recombinogenic sites that result in sister chromatid recombination directly in G(2). Further support for the existence of two types of sister chromatid recombination is the fact that events induced in rad1-1/rad1-1 were due almost entirely to gene conversion, whereas those in RAD1/rad1-1 cells were due to a mixture of gene conversion and reciprocal recombination. PMID:8454200

  14. Twin-jet screech suppression

    NASA Astrophysics Data System (ADS)

    Shaw, L. L.

    1989-04-01

    Results are reported from an experimental investigation of screech noise in twin jet-engine configurations and of methods for suppressing this noise. The acoustic mechanisms of screech generation and amplification are reviewed; the experimental setup (in which acoustic and phase-averaged schlieren data are obtained on a 4.7-percent scale model of an F-15 aircraft equipped with axisymmetric nozzles) is described; and the results are presented in extensive graphs and flow visualizations. Screech tones with amplitudes up to 163 dB are measured, with amplification by up to 20 dB due to interplume coupling. Suppression by active noise cancellation and by shifting the nozzle exit planes is found to be ineffective; small tabs mounted in the exit plane are very effective in suppressing screech from both single and twin jets, while a small secondary jet is effective for single-jet screech.

  15. Birdshot retinochoroidopathy in monozygotic twins.

    PubMed

    Fich, M; Rosenberg, T

    1992-10-01

    Birdshot retinochoroidopathy is a rare ocular disorder which was named and delineated as a separate clinical entity by Ryan & Maumenee in 1980. We diagnosed birdshot retinochoroidopathy in a monozygotic pair of twins, who were affected with a time interval of 12 years, respectively. These are the first with birdshot retinochoroidopathy to be reported from the Nordic countries and the first report on this disorder in monozygotic twins. Due to night-blindness, visual field defects and a severely affected electroretinogram one of our cases initially was diagnosed as a choroidoretinal dystrophy. Birdshot retinochoroidopathy should be kept in mind as a differential diagnosis in retinitis pigmentosa-like disorders with widespread choroidal involvement. Our cases substantiated the evidence of a strong correlation with the presence of HLA-A29 antigen. PMID:1471497

  16. Twins Eye Study in Tasmania (TEST): Rationale and Methodology to Recruit and Examine Twins

    PubMed Central

    Mackey, David A; MacKinnon, Jane R; Brown, Shayne A; Kearns, Lisa S; Ruddle, Jonathan B; Sanfilippo, Paul G; Sun, Cong; Hammond, Christopher J; Young, Terri L; Martin, Nicholas G; Hewitt, Alex W

    2013-01-01

    Visual impairment is a leading cause for morbidity and poor quality of life in our community. Unravelling the mechanisms underpinning important blinding diseases could allow for preventative or curative steps to be implemented. Twin siblings provide a unique opportunity in biology to discover genes associated with numerous eye diseases and ocular biometry. Twins are particularly useful for quantitative trait analysis through genome-wide association and linkage studies. Although many studies involving twins rely on twin registries, we present our approach to the Twins Eye Study in Tasmania to provide insight into possible recruitment strategies, expected participation rates and potential examination strategies that can be considered by other researchers for similar studies. Five separate avenues for cohort recruitment were adopted: 1) piggy-backing existing studies where twins had been recruited; 2); utilising the national twin registry; 3) word of mouth and local media publicity; 4) directly approaching schools; and finally 5) collaborating with other research groups studying twins. PMID:19803772

  17. Psychiatric resilience: longitudinal twin study

    PubMed Central

    Amstadter, Ananda B.; Myers, John M.; Kendler, Kenneth S.

    2014-01-01

    Objective There is great variability in response to stressful life events (SLEs), with some individuals demonstrating substantial psychiatric symptoms while others remain largely asymptomatic. The source of this variability is poorly understood. The present study aimed to examine the genetic and environmental underpinning of resilience, defined as the difference between the twins’ total score on a broad measure of internalizing symptoms and their predicted score based on their cumulative exposure to SLEs. Method SLE exposure and internalizing symptoms were assessed at two time points in 7,500 adult twins. Using the residual between actual and predicted internalizing symptom total score, twin modeling was conducted for each wave separately, as well as longitudinally. Quantitative and qualitative sex effects were also tested. Results Resilience was found to have a mild to moderate genetic heritability at each individual wave (~31%). Additionally, qualitative sex effects were found. Incorporating error of measurement into the model increased the estimated heritability for the latent construct of resilience (~50%). Unconfounded by measurement error and occasion specific effects, environmental influences contributed roughly equally to determining the individual level of resilience. Conclusions Genetic factors influence the level of psychiatric resilience, and are largely stable over time. The genes that impact on resilience are not entirely the same in males and females, although the degree of heritability is equal across the sexes. Environmental influences can also have an enduring effect on resilience. The present findings of the genetic and environmental influences on adaptation to SLEs clarify the sources of individual variation to environmental stressors. PMID:24723629

  18. Growth and development in premature twins.

    PubMed Central

    Morley, R; Cole, T J; Powell, R; Lucas, A

    1989-01-01

    A total of 476 infants (386 singletons and 90 twins) born before 32 weeks' gestation were studied to compare long term growth and development in twins and singletons. At 18 months, after adjusting for confounding social, obstetric, and neonatal factors, twins were not disadvantaged in their neurodevelopmental status, but were 1.6 cm shorter than singletons and had thicker triceps and subscapular skinfolds. No significant differences were found between first and second born twins in later growth or development at 18 months post-term. While preterm twins may have an inherent disadvantage in linear growth it is suggested that in other respects twinning is not a risk factor in preterm infants. PMID:2629626

  19. Analysis of Twin Data Using SAS

    PubMed Central

    Feng, Rui; Zhou, Gongfu; Zhang, Meizhuo; Zhang, Heping

    2008-01-01

    SUMMARY Twin studies are essential for assessing disease inheritance. Data generated from twin studies are traditionally analyzed using specialized computational programs. For many researchers, especially those who are new to twin studies, understanding and using those specialized computational programs can be a daunting task. Given that SAS is the most popular software for statistical analysis, we suggest the use of SAS procedures for twin data may be a helpful alternative and demonstrate that we can obtain similar results from SAS to those produced by specialized computational programs. This numerical validation is practically useful, because a natural concern with general statistical software is whether it can deal with data that are generated from special study designs such as twin studies and whether it can test a particular hypothesis. We conclude through our extensive simulation that SAS procedures can be used easily as a very convenient alternative to specialized programs for twin data analysis. PMID:18647295

  20. Genetic Regulation of Acquired Immune Responses to Antigens of Mycobacterium tuberculosis: a Study of Twins in West Africa

    Microsoft Academic Search

    ANNETTE JEPSON; AMANDA FOWLER; WINSTON BANYA; MAHAVIR SINGH; STEVE BENNETT; HILTON WHITTLE; ADRIAN V. S. HILL

    2001-01-01

    The role of genetic factors in clinical tuberculosis is increasingly recognized; how such factors regulate the immune response to Mycobacterium tuberculosis in healthy individuals is unclear. In this study of 255 adult twin pairs residing in The Gambia, West Africa, it is apparent that memory T-cell responses to secreted mycobac- terial antigens (85-kDa antigen complex, \\

  1. Australian Twin Registry: 30 years of progress.

    PubMed

    Hopper, John L; Foley, Debra L; White, Paul A; Pollaers, Vincent

    2013-02-01

    The Australian Twin Registry (ATR) is a national volunteer resource of twin pairs and higher-order multiples willing to consider participating in health, medical, and scientific research. The vision of the ATR is 'to realize the full potential of research involving twins to improve the health and well-being of all Australians'. The ATR has been funded continuously by the National Health and Medical Council for more than 30 years. Its core functions entail the recruitment and retention of twin members, the maintenance of an up-to-date database containing members' contact details and baseline information, and the promotion and provision of open access to researchers from all institutes in Australia, and their collaborators, in a fair and equitable manner. The ATR is administered by The University of Melbourne, which acts as custodian. Since the late 1970s the ATR has enrolled more than 40,000 twin pairs of all zygosities and facilitated more than 500 studies that have produced at least 700 peer-reviewed publications from classical twin studies, co-twin control studies, within-pair comparisons, twin family studies, longitudinal twin studies, randomized controlled trials, and epigenetics studies, as well as studies of issues specific to twins. New initiatives include: a Health and Life Style Questionnaire; data collection, management, and archiving using a secure online software program (The Ark); and the International Network of Twin Registries. The ATR's expertise and 30 years of experience in providing services to national and international twin studies has made it an important resource for research across a broad range of disciplines. PMID:23200298

  2. College-age twins: university admission policies / twin research: birth weight and neuromotor performance; transfusion syndrome markers; vanishing twins and fetal sex determination; mz twin discordance for wilson's disease / media: big at birth; planned separation of conjoined twins; x factor twins; Cinema: the identical.

    PubMed

    Segal, Nancy L

    2014-12-01

    There is a lack of research findings addressing the unique college admissions issues faced by twins and other multiples. The advantages and disadvantage twins face, as reported by college administrators, twins and families are reviewed. Next, recent research addressing twins' birth weight and neuromotor performance, transfusion syndrome markers, the vanishing twin syndrome and monozygotic (MZ) twin discordance for Wilson's disease is described. News items concerning the birth of unusually large twins, the planned separation of conjoined twins, twin participants in the X Factor games and a film, The Identical, are also summarized. PMID:25331364

  3. The Solar Twin Planet Search II. A Jupiter twin around a solar twin

    E-print Network

    Bedell, M; Bean, J L; Ramirez, I; Asplund, M; Alves-Brito, A; Casagrande, L; Dreizler, S; Monroe, T; Spina, L; Maia, M Tucci

    2015-01-01

    Through our HARPS radial velocity survey for planets around solar twin stars, we have identified a promising Jupiter twin candidate around the star HIP11915. We characterize this Keplerian signal and investigate its potential origins in stellar activity. Our analysis indicates that HIP11915 hosts a Jupiter-mass planet with a 3600-day orbital period and low eccentricity. Although we cannot definitively rule out an activity cycle interpretation, we find that a planet interpretation is more likely based on a joint analysis of RV and activity index data. The challenges of long-period radial velocity signals addressed in this paper are critical for the ongoing discovery of Jupiter-like exoplanets. If planetary in nature, the signal investigated here represents a very close analog to the solar system in terms of both Sun-like host star and Jupiter-like planet.

  4. Twin Loss: Implications for Counselors Working with Surviving Twins.(practice & Theory)

    ERIC Educational Resources Information Center

    Withrow, Rebecca; Schwiebert, Valerie L.

    2005-01-01

    Multiple births are becoming increasingly prevalent due to the use of fertility drugs and women choosing to wait until later life to conceive. With the growth in the twin population, little research has been done to investigate the effects on the grief process when 1 twin dies. Counselors must understand the unique experience of twins to formulate…

  5. INCREASED TWINNING AND COW PRODUCTIVITY IN BEEF CATTLE SELECTED FOR OVULATION AND TWINNING RATE

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Since 1981, cattle have been selected for fraternal twin births using estimated breeding values for twinning calculated from repeated measurements of ovulation rate in all heifer progeny starting at about 12 months of age, from twinning rate in the selected females, and from progeny testing and sub...

  6. Self-replicating twins in nanowires.

    PubMed

    Yuan, Zaoshi; Nakano, Aiichiro

    2013-10-01

    Based on molecular-dynamics simulations validated with quantum-mechanical calculations, we predict that (111) twin planes in a [111]-oriented GaAs nanowire attain attractive interactions mediated by surface strain. This gives rise to a self-replication mechanism that continuously generates a twin superlattice in a nanowire during growth. We demonstrate significant implications of the twin-twin interaction for the electronic, mechanical, and chemical properties of nanowires. These unique properties suggest potential applications such as catalysts for solar fuel production and nanoscale mechanical dampers. PMID:24073636

  7. Psychosexual study of communist era Hungarian twins.

    PubMed

    Metneki, Julia; Tarnoki, Adam Domonkos; Tarnoki, David Laszlo; Littvay, Levente; Czeizel, Andrew

    2011-04-01

    Our aim in this study is to describe the characteristics of sexual development in twins and estimate the role of heritability and environmental factors as causes of certain sexual disorders. Two hundred and ten adult same-sex twin pairs (92 monozygotic [MZ] female, 41 MZ male, 55 dizygotic [DZ] female and 22 DZ male pairs) were involved in the study. Data were collected in 1982 by self-administered questionnaires that included items on sexual maturation, sexual life, contraception, mutual sexual activity within twin pairs and alcohol use. The ratio of married to unmarried twins was nearly the same in MZs and DZs, with the exception that the divorce rate was higher in MZ female twins (14%), and DZ and male twins were slightly more likely to be single. Menarche was later in twins compared to non-twin Hungarian women. 57% of MZs experienced menarche within 3 months of each other, 77% within 6 months while it occurred for 30% and 43% respectively in DZs. The first seminal emission indicated some delay in male twins compared with the Hungarian general population sample. MZ first kisses occurred later than DZ's first kisses. The same was true for the first petting, masturbation and first sexual intercourse. Anorgasmy is 27% heritable but the estimate is not statistically significant. Concordance rate for premature ejaculation in MZs was greater than in DZs but the structural equation model showed significant misfit. Age at menarche appeared to be strongly heritable. PMID:21425896

  8. Common plankton of Twin Lakes, Colorado

    SciTech Connect

    Lieberman, D.M.

    1983-02-01

    A series of studies is being performed to evaluate the effects of the Mt. Elbert Pumped-Storage Powerplant on the ecology of Twin Lakes. Twin Lakes are a pair of connected dimictic lakes, formed as the result of glacial action on alluvial deposits. This report presents a taxonomic species study of the common plankton collected since 1974 from Twin Lakes. A total of 11 zooplankters and 14 phytoplankters were identified from the limnetic zone of Twin Lakes and the associated Mt. Elbert Forebay. The four divisions of zooplankton included four species of Rotifera (rotifer), three species of Copepoda (copepod), three species of Cladocera (cladoceran), and one species of Mysidacea (opossum shrimp).

  9. Management of twins: vaginal or cesarean delivery?

    PubMed

    Bibbo, Carolina; Robinson, Julian N

    2015-06-01

    Recent level I evidence from a single randomized-controlled trial has shown that there is no difference in fetal or neonatal outcomes (composite of fetal/neonatal death or serious neonatal morbidity) between planned cesarean delivery and planned vaginal delivery for twins between 32 and 38 6/7 weeks. As long as the presenting twin is vertex, vaginal delivery should be considered regardless of the presentation of the second twin. To avoid unnecessary cesarean deliveries and maternal morbidity, it is important to continue to train residents to perform obstetrics maneuvers necessary for vaginal delivery of twins such as vaginal breech extraction. PMID:25851847

  10. Chromosome orientation fluorescence in situ hybridization (CO-FISH) to study sister chromatid segregation in vivo

    PubMed Central

    Falconer, Ester; Chavez, Elizabeth; Henderson, Alexander; Lansdorp, Peter M.

    2013-01-01

    Previously, assays for sister chromatid segregation patterns relied on incorporation of BrdU and indirect methods to infer segregation patterns after two cell divisions. Here we describe a method to differentially label sister chromatids of murine cells and directly assay sister chromatid segregation patterns following one cell division in vitro and in vivo by adaptation of the well-established CO-FISH (chromosome orientation fluorescent in situ hybridization) technique. 5-bromo-2?-deoxyuridine (BrdU) is incorporated into newly-formed DNA strands, followed by photolysis and exonuclease digestion to create single-stranded sister chromatids containing parental template DNA only. Such single-stranded sister chromatids are differentially labeled using unidirectional probes to major satellite sequences coupled to fluorescent markers. Differentially-labeled sister chromatids in post-mitotic cells are visualized using fluorescence microscopy and sister chromatid segregation patterns can be directly assayed after one cell division. This procedure requires four days for in vivo mouse tissues, and two days for in vitro cultured cells. PMID:20595964

  11. Cross-twinning in a natural spinel from Sri Lanka

    Microsoft Academic Search

    Rosa Anna Fregola; Eugenio Scandale

    2007-01-01

    A modified cross-twinning growth mechanism is put forward to explain the anomalous morphology of a spinel multiple-twin from Sri Lanka, flattened crosswise the twin\\u000a planes. Cross-twinning in spinel was found also in other specimens from Pegu (Myanmar), and the results were published in\\u000a a previous paper. This particular type of twinning is derived from the combination of cyclic\\u000a twinning with

  12. 11. Photographic copy of copy of Twin Lakes Outlet Works ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Photographic copy of copy of Twin Lakes Outlet Works construction drawing dated January 15, 1951. Drawn by W.A. Doe for the Twin Lakes Reservoir and Canal Co. (copy in possession of Bureau of Reclamation, location of original unknown) 'AS CONSTRUCTED' PLANS OF 1949-1950, REHABILITATION OF TWIN LAKES RESERVOIR OUTLET WORKS, DETAILS OF UPSTREAM WING WALLS. - Twin Lakes Dam & Outlet Works, Beneath Twin Lakes Reservoir, T11S, R80W, S22, Twin Lakes, Lake County, CO

  13. 12. Photographic copy of copy of Twin Lakes Outlet Works ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    12. Photographic copy of copy of Twin Lakes Outlet Works construction drawing dated January 15, 1951. Drawn by W.A. Doe for the Twin Lakes Reservoir and Canal Co. (copy in possession of Bureau of Reclamation, location of original unknown) 'AS CONSTRUCTED' PLANS OF 1949-50, REHABILITATION OF TWIN LAKES RESERVOIR OUTLET WORKS, DETAILS OF DISCHARGE BASIN. - Twin Lakes Dam & Outlet Works, Beneath Twin Lakes Reservoir, T11S, R80W, S22, Twin Lakes, Lake County, CO

  14. Monozygotic VS. Dizygotic Twin Behavior in Artificial Mouse Twins

    PubMed Central

    Baunack, E.; Falk, U.; Gärtner, K.

    1984-01-01

    Adult inbred mice of an isogenic strain (AKR/NHan or C57BL/6J Han) differ in social (sexual and agonistic), emotional and psychomotoric behavior, depending on the kind of manipulation to which they were subjected at an early ontogenetic stage. Monozygotic twins (MZT) from eight-cell stages halved and transferred to uterine foster mothers were compared with dizygotic twins (DZT) from nonreduced but transferred eight-cell stages and with naturally born animals (NBA). Generally, early embryonic conditions predict the behavioral characteristics of the adult animals to a high degree. The MZT are motorially less active, less emotional, less aggressive and less socially interested than DZT and NBA. In tests of spontaneous social behavior (allogrooming, anogenital licking, mounting, fighting), as well as in tests for emotionality (open field: crossed fields and defecation), these behavioral patterns occurred less frequently in MZT than in DZT; the NBA were mostly intermediate. The copulatory pattern of male MZT differs from that of male DZT by a shortage of intromission latency and duration; furthermore, MZT pairs do not build up a steady rank order in competitive copulation tests, as opposed to DZT and NBA pairs. In a test for psychomotoric behavior (swimming), the MZT prefer "floating" as a survival strategy, wheras the DZT and NBA prefer "adult swimming." Therefore, it can be concluded that these behavioral differences may be caused by the particular psychosocial environment in which the twins grow up or may be due to early prenatal peculiarities, such as inadequate synchronization of the developmental status of uterus and embryo. PMID:6538528

  15. The SUMO deconjugating peptidase Smt4 contributes to the mechanism required for transition from sister chromatid arm cohesion to sister chromatid pericentromere separation.

    PubMed

    Stephens, Andrew D; Snider, Chloe E; Bloom, Kerry

    2015-07-18

    The pericentromere chromatin protrudes orthogonally from the sister-sister chromosome arm axis. Pericentric protrusions are organized in a series of loops with the centromere at the apex, maximizing its ability to interact with stochastically growing and shortening kinetochore microtubules. Each pericentromere loop is ?50 kb in size and is organized further into secondary loops that are displaced from the primary spindle axis. Cohesin and condensin are integral to mechanisms of loop formation and generating resistance to outward forces from kinesin motors and anti-parallel spindle microtubules. A major unanswered question is how the boundary between chromosome arms and the pericentromere is established and maintained. We used sister chromatid separation and dynamics of LacO arrays distal to the pericentromere to address this issue. Perturbation of chromatin spring components results in 2 distinct phenotypes. In cohesin and condensin mutants sister pericentric LacO arrays separate a defined distance independent of spindle length. In the absence of Smt4, a peptidase that removes SUMO modifications from proteins, pericentric LacO arrays separate in proportion to spindle length increase. Deletion of Smt4, unlike depletion of cohesin and condensin, causes stretching of both proximal and distal pericentromere LacO arrays. The data suggest that the sumoylation state of chromatin topology adjusters, including cohesin, condensin, and topoisomerase II in the pericentromere, contribute to chromatin spring properties as well as the sister cohesion boundary. PMID:25946564

  16. Unusual Cardiac Malformations in Conjoined Twins: Thoracopagus Twins with Conjoined Pentalogy of Cantrell and an Omphalopagus Twin with Atretic Ventricles

    Microsoft Academic Search

    R. Spencer; W. H. Robichaux; D. W. Superneau; V. W. Lucas

    2002-01-01

    Two unrelated cases of conjoined twins were found to have cardiac malformations that apparently have not been reported previously. In one case, thoracopagus twins had an extensive thoracoabdominal wall defect that resulted in ectopia cordis of a conjoined heart along with evisceration of the shared liver and intestine along with one spleen. These malformations, accompanied by defects in the sternum,

  17. Wild female baboons bias their social behaviour towards paternal half-sisters.

    PubMed Central

    Smith, Kerri; Alberts, Susan C; Altmann, Jeanne

    2003-01-01

    Adult female cercopithecines have long been known to bias their social behaviour towards close maternal kin. However, much less is understood about the behaviour of paternal kin, especially in wild populations. Here, we show that wild adult female baboons bias their affiliative behaviour towards their adult paternal half-sisters in the same manner and to the same extent that they bias their behaviour towards adult maternal half-sisters. Females appear to rely heavily on social familiarity as a means of biasing their behaviour towards paternal half-sisters, but may use phenotype matching as well. PMID:12641905

  18. Increased UV-induced sister-chromatid exchange in cultured fibroblasts of first-degree relatives of melanoma patients

    SciTech Connect

    Knees-Matzen, S.; Roser, M.; Reimers, U.; Ehlert, U.; Weichenthal, M.; Breitbart, E.W.; Ruediger, H.W. (Department of Occupational Medicine, University of Hamburg (Germany))

    1991-06-01

    Cultured fibroblasts of 17 first-degree relatives of familial melanoma patients and six first-degree relatives of cutaneous melanoma (CMM) patients with multiple CMM primaries were tested for in vitro sensitivity to UV light. Fibroblasts of nine familial CMM patients with a known UV-sensitivity and 19 healthy probands served as a control. Sister chromatid exchange (SCE) was used as a parameter to detect UV-induced genotoxic damage. The authors found significantly (p less than 0.001) increased UV-induced SCE levels in familial melanoma patients, as well as in first-degree relatives of familial melanoma patients (p less than 0.001) after UV-A,B irradiation (375 J/m2), compared to the healthy probands without a family history of CMM. A significant (p less than 0.001) increase of UV-induced SCE was also observed in the relatives of CMM patients with multiple CMM primaries. In addition, the spontaneous SCE were significantly increased (p less than 0.05) in familial CMM patients. This study shows that increased UV sensitivity is a familial phenomenon. It is consistent with the concept of a genetic predisposition to CMM, which is based on increased UV sensitivity and may help to define groups with an elevated risk of developing cutaneous malignant melanoma.

  19. NOTE: Haemodynamic resistance model of monochorionic twin pregnancies complicated by acardiac twinning

    NASA Astrophysics Data System (ADS)

    Umur, Asli; van Gemert, Martin J. C.; van den Wijngaard, Jeroen P. H. M.; Ross, Michael G.; Nikkels, Peter G. J.

    2004-07-01

    An acardiac twin is a severely malformed monochorionic twin fetus that lacks most organs, particularly a heart. It grows during pregnancy, because it is perfused by its developmentally normal co-twin (called the pump twin) via a set of placental arterioarterial and venovenous anastomoses. The pump twin dies intrauterine or neonatally in about 50% of the cases due to congestive heart failure, polyhydramnios and prematurity. Because the pathophysiology of this pregnancy is currently incompletely understood, we modified our previous haemodynamic model of monochorionic twins connected by placental vascular anastomoses to include the analysis of acardiac twin pregnancies. We incorporated the fetoplacental circulation as a resistance circuit and used the fetal umbilical flow that perfuses the body to define fetal growth, rather than the placental flow as done previously. Using this modified model, we predicted that the pump twin has excess blood volume and increased mean arterial blood pressure compared to those in the acardiac twin. Placental perfusion of the acardiac twin is significantly reduced compared to normal, as a consequence of an increased venous pressure, possibly implying reduced acardiac placental growth. In conclusion, the haemodynamic analysis may contribute to an increased knowledge of the pathophysiologic consequences of an acardiac body mass for the pump twin.

  20. Hypertensive disorders in twin versus singleton gestations

    Microsoft Academic Search

    Baha M. Sibai; John Hauth; Steve Caritis; Marshall D. Lindheimer; Cora MacPherson; Mark Klebanoff; J. Peter VanDorsten; Mark Landon; Menachem Miodovnik; Richard Paul; Paul Meis; Gary Thurnau; Mitchell Dombrowski; James Roberts; Donald McNellis

    2000-01-01

    Objective: This study was undertaken to compare rates and severity of gestational hypertension and preeclampsia, as well as perinatal outcomes when these complications develop, between women with twin gestations and those with singleton gestations. Study Design: This was a secondary analysis of prospective data from women with twin (n = 684) and singleton (n = 2946) gestations enrolled in two

  1. Reversibleirreversible plasticity transition in twinned copper nanopillars

    E-print Network

    Ghoniem, Nasr M.

    Reversible­irreversible plasticity transition in twinned copper nanopillars J.A. Brown, N 31 October 2009 Abstract Through computer simulations, we show that plasticity in twinned copper nanopillar under compression, plastic deformation can be totally reversed when rR is in the range 0:5 6 rR 6

  2. The Development of Empathy in Twins

    Microsoft Academic Search

    Carolyn Zahn-Waxler; JoAnn L. Robinson; Robert N. Emde

    1992-01-01

    This study examined empathy in 94 monozygotic (MZ) and 90 dizygotic (DZ) twin pairs during the 2nd year of life. Children’s reactions to simulations of distress in others were videotaped in home and laboratory settings. Some components of concern for others increased with age between 14 and 20 months for both MZ and DZ twins. Girls scored higher than boys

  3. The Development of Empathy in Twins.

    ERIC Educational Resources Information Center

    Zahn-Waxler, Carolyn; And Others

    1992-01-01

    Observational measures of monozygotic and dizygotic twins' reactions to simulations of distress in others were obtained when the twins were 14 and 20 months old. Components of concern for others increased with age. Girls scored higher than boys on most measures. There was modest evidence for heritability of empathy. (BC)

  4. Stacking fault and twinning in nanocrystalline metals.

    SciTech Connect

    Liao, Xiaozhou; Zhao, Y. (Yonghao); Srivilliputhur, S. G. (Srinivasan G.); Zhou, F. (Fei); Lavernia, E. J.; Baskes, M. I. (Michael I.); Zhu, Y. T. (Yuntian Theodore); Xu, H. F. (Huifang)

    2004-01-01

    Nanocrystalline Al processed by cryogenic ball-milling and nanocrystalline Cu processed by high-pressure torsion at a very low strain rate and at room temperature were investigated using high-resolution transmission electron microscopy. For nanocrystalline Al, we observed partial dislocation emission from grain boundaries, which consequently resulted in deformation stacking faults and twinning. We also observed deformation twins formed via two other mechanisms recently predicted by molecular dynamic simulations. These results are surprising because (1) partial dislocation emission from grain boundaries has not been experimentally observed although it has been predicted by simulations and (2) deformation stacking faults and twinning have not been reported in Al due to its high stacking fault energy. For nanocrystalline Cu, we found that twinning becomes a major deformation mechanism, which contrasts with the literature reports that deformation twinning in coarse-grained Cu occurs only under high strain rate and/or low temperature conditions and that reducing grain sizes suppresses deformation twinning. The investigation of the twinning morphology suggests that twins and stacking faults in nanocrystalline Cu were formed through partial dislocation emissions from grain boundaries. This mechanism differs from the pole mechanism operating in coarse-grained Cu.

  5. GLOBALIZATION AND THE TWIN PROTECTIONS Juillet 2007

    E-print Network

    Paris-Sud XI, Université de

    GLOBALIZATION AND THE TWIN PROTECTIONS N° 2007-21 Juillet 2007 Collection OFCE/ANR n°1 JEAN-PAUL FITOUSSI #12;Globalization and the Twin Protections Jean-Paul Fitoussi* Summary The aim of this short paper is to devise policies to avoid that the present course of globalization becomes so unstable that it would lead

  6. [Keratoconus and coexisting diseases in monozygotic twins].

    PubMed

    Iwaszkiewicz, E; Czubak, M; Ga?ecki, W; Wo?niak, W

    1992-01-01

    The study presents conditions mostly described as co-existing with the keratoconus in 7 patients (from among 300 examined) born from an uni-ovular twin pregnancy. Only one pair of twins showed keratoconus of both eyes and developing identically in both eyes. PMID:1341302

  7. Nanoscale growth twins in sputtered metal films

    NASA Astrophysics Data System (ADS)

    Zhang, X.; Anderoglu, O.; Hoagland, R. G.; Misra, A.

    2008-09-01

    This article reviews recent studies on the mechanical properties of sputtered copper and 330 stainless-steel films with {111} nanoscale growth twins preferentially oriented perpendicular to growth direction. The mechanisms of formation of growth twins during sputtering, unusually high strengths, and excellent thermal stability of nanotwinned structures are highlighted.

  8. First trimester diagnosis of dicephalus conjoined twins

    Microsoft Academic Search

    George Daskalakis; Athanasios Pilalis; Ioannis Tourikis; George Moulopoulos; Ioannis Karamoutzos; Aris Antsaklis

    2004-01-01

    Dicephalus twinning is an extremely rare type of conjoined twins. Early prenatal diagnosis of this condition is important to provide an opportunity for pregnancy termination. We present such a case, which was diagnosed by ultrasound examination at 12 weeks of gestation. The ultrasonographic criteria are discussed together with implications for management.

  9. Newly discovered sister lineage sheds light on early ant evolution.

    PubMed

    Rabeling, Christian; Brown, Jeremy M; Verhaagh, Manfred

    2008-09-30

    Ants are the world's most conspicuous and important eusocial insects and their diversity, abundance, and extreme behavioral specializations make them a model system for several disciplines within the biological sciences. Here, we report the discovery of a new ant that appears to represent the sister lineage to all extant ants (Hymenoptera: Formicidae). The phylogenetic position of this cryptic predator from the soils of the Amazon rainforest was inferred from several nuclear genes, sequenced from a single leg. Martialis heureka (gen. et sp. nov.) also constitutes the sole representative of a new, morphologically distinct subfamily of ants, the Martialinae (subfam. nov.). Our analyses have reduced the likelihood of long-branch attraction artifacts that have troubled previous phylogenetic studies of early-diverging ants and therefore solidify the emerging view that the most basal extant ant lineages are cryptic, hypogaeic foragers. On the basis of morphological and phylogenetic evidence we suggest that these specialized subterranean predators are the sole surviving representatives of a highly divergent lineage that arose near the dawn of ant diversification and have persisted in ecologically stable environments like tropical soils over great spans of time. PMID:18794530

  10. Chloroplast Phylogenomics Indicates that Ginkgo biloba Is Sister to Cycads

    PubMed Central

    Wu, Chung-Shien; Chaw, Shu-Miaw; Huang, Ya-Yi

    2013-01-01

    Molecular phylogenetic studies have not yet reached a consensus on the placement of Ginkgoales, which is represented by the only living species, Ginkgo biloba (common name: ginkgo). At least six discrepant placements of ginkgo have been proposed. This study aimed to use the chloroplast phylogenomic approach to examine possible factors that lead to such disagreeing placements. We found the sequence types used in the analyses as the most critical factor in the conflicting placements of ginkgo. In addition, the placement of ginkgo varied in the trees inferred from nucleotide (NU) sequences, which notably depended on breadth of taxon sampling, tree-building methods, codon positions, positions of Gnetopsida (common name: gnetophytes), and including or excluding gnetophytes in data sets. In contrast, the trees inferred from amino acid (AA) sequences congruently supported the monophyly of a ginkgo and Cycadales (common name: cycads) clade, regardless of which factors were examined. Our site-stripping analysis further revealed that the high substitution saturation of NU sequences mainly derived from the third codon positions and contributed to the variable placements of ginkgo. In summary, the factors we surveyed did not affect results inferred from analyses of AA sequences. Congruent topologies in our AA trees give more confidence in supporting the ginkgo–cycad sister-group hypothesis. PMID:23315384

  11. Healthy Eating with Diabetes Video

    MedlinePLUS Videos and Cool Tools

    ... Healthy Eating with Diabetes Video Healthy Eating with Diabetes Video Making changes in the way you eat ... help you manage your weight. Healthy Eating with Diabetes Subtitle Healthy Eating with Diabetes Transcript Healthy Eating ...

  12. Highlights from the 15th International Congress of Twin Studies/Twin Research: Differentiating MZ Co-twins Via SNPs; Mistaken Infant Twin-Singleton Hospital Registration; Narcolepsy With Cataplexy; Hearing Loss and Language Learning/Media Mentions: Broadway Musical Recalls Conjoined Hilton Twins; High Fashion Pair; Twins Turn 102; Insights From a Conjoined Twin Survivor.

    PubMed

    Segal, Nancy L

    2015-02-01

    Highlights from the 15th International Congress of Twin Studies are presented. The congress was held November 16-19, 2014 in Budapest, Hungary. This report is followed by summaries of research addressing the differentiation of MZ co-twins by single nucleotide polymorphisms (SNPs), an unusual error in infant twin-singleton hospital registration, twins with childhood-onset narcolepsy with cataplexy, and the parenting effects of hearing loss in one co-twin. Media interest in twins covers a new Broadway musical based on the conjoined twins Violet and Daisy Hilton, male twins becoming famous in fashion, twins who turned 102 and unique insights from a conjoined twin survivor. This article is dedicated to the memory of Elizabeth (Liz) Hamel, DZA twin who met her co-twin for the first time at age seventy-eight years. Liz and her co-twin, Ann Hunt, are listed in the 2015 Guinness Book of Records as the longest separated twins in the world. PMID:25662422

  13. Radiologic findings of Patterson-Lowry rhizomelic dysplasia in two sisters.

    PubMed

    Damar, Ça?r?; Boyuna?a, Öznur; Derinkuyu, Betül Emine; Battalo?lu, Nergiz; Ezgü, Fatih Süheyl

    2014-11-01

    We report two sisters who have a rare skeletal abnormality termed Patterson-Lowry rhizomelic dysplasia. The typical findings of these cases on bone survey are isolated shortening and proximal metaphyseal enlargement and cupping of the bilateral humeri. The elder sister also has coxa vara deformity and dysplastic proximal femoral epiphyses on both sides. The younger sister has normal hip joint bones bilaterally, but her proximal femoral epiphyses are smaller than normal. All other bones of the sisters are of normal size and configuration. Our patients are two siblings, and their parents are first degree relatives, suggesting autosomal-recessive (AR) inheritance. The present patients help us to understand the genetic relationships and skeletal variabilities of this rare entity. PMID:25037730

  14. "O Sister of my Song!": Caroline Sturgis, Ralph Waldo Emerson, and Poems (1847)

    E-print Network

    Jenkins, Andrew

    1999-01-01

    ). Thus Sturgis's consent to play by alternating turns the dutiful and naughty daughter, the faithful and supportive sister, and the inspirational, self-effacing whirling dervish can be read as a surrogate fulfillment of the relationships and bonds she...

  15. When Your Brother or Sister Has Cancer: A Guide for Teens

    Cancer.gov

    Tips on what to say to your friends, how to deal with stress, and where to find support – as well as information about cancer and cancer treatments, for young people who have a brother or sister with cancer.

  16. Catholic Nursing Sisters and Brothers and Racial Justice in Mid-20th-Century America

    PubMed Central

    Wall, Barbra Mann

    2009-01-01

    This historical article considers nursing’s work for social justice in the 1960s civil rights movement through the lens of religious sisters and brothers who advocated for racial equality. The article examines Catholic nurses’ work with African Americans in the mid-20th century that took place amid the prevailing social conditions of poverty and racial disempowerment, conditions that were linked to serious health consequences. Historical methodology is used within the framework of “bearing witness,” a term often used in relation to the civil rights movement and one the sisters themselves employed. Two situations involving nurses in the mid-20th century are examined: the civil rights movement in Selma, Alabama, and the actions for racial justice in Chicago, Illinois. The thoughts and actions of Catholic sister and brother nurses in the mid-20th century are chronicled, including those few sister nurses who stepped outside their ordinary roles in an attempt to change an unjust system entirely. PMID:19461224

  17. Sisters in Science: Teachers’ reflective dialogue on confronting the gender gap

    Microsoft Academic Search

    Penny L. Hammrich; Greer M. Richardson; Beverly Livingston

    2000-01-01

    Sisters in Science, like many other programs aimed at fostering girls’ interest and achievement in science, is designed to\\u000a encourage more girls and woment to prepare for the careers in math, science, and technology that will dominate the 21st century. One of the foci of Sisters in Science was on the role of teachers as decisiomnakers in promoting science literacy

  18. Sister Mary Joseph's Nodule as a First Manifestation of Primary Peritoneal Cancer

    PubMed Central

    Iavazzo, C.; Madhuri, K.; Essapen, S.; Akrivos, N.; Tailor, A.; Butler-Manuel, S.

    2012-01-01

    Sister Mary Joseph's nodule metastasis is a rather rare finding. The primary malignancy in women is usually ovarian, endometrial, gastric, or pancreatobiliary tree cancer. We present a case of an 87-year-old patient with Sister Mary Joseph's nodule metastasis caused by a primary peritoneal malignancy. Through a literature search, we also discuss the pathophysiology, diagnostic approach, management, and prognosis of such a condition. PMID:23133766

  19. Global Transcript Profiles of Fat in Monozygotic Twins Discordant for BMI: Pathways behind Acquired Obesity

    PubMed Central

    Rissanen, Aila; Saharinen, Juha; Ellonen, Pekka; Keränen, Heli; Suomalainen, Anu; Götz, Alexandra; Suortti, Tapani; Yki-Järvinen, Hannele; Oreši?, Matej; Kaprio, Jaakko; Peltonen, Leena

    2008-01-01

    Background The acquired component of complex traits is difficult to dissect in humans. Obesity represents such a trait, in which the metabolic and molecular consequences emerge from complex interactions of genes and environment. With the substantial morbidity associated with obesity, a deeper understanding of the concurrent metabolic changes is of considerable importance. The goal of this study was to investigate this important acquired component and expose obesity-induced changes in biological pathways in an identical genetic background. Methods and Findings We used a special study design of “clonal controls,” rare monozygotic twins discordant for obesity identified through a national registry of 2,453 young, healthy twin pairs. A total of 14 pairs were studied (eight male, six female; white), with a mean ± standard deviation (SD) age 25.8 ± 1.4 y and a body mass index (BMI) difference 5.2 ± 1.8 kg/m2. Sequence analyses of mitochondrial DNA (mtDNA) in subcutaneous fat and peripheral leukocytes revealed no aberrant heteroplasmy between the co-twins. However, mtDNA copy number was reduced by 47% in the obese co-twin's fat. In addition, novel pathway analyses of the adipose tissue transcription profiles exposed significant down-regulation of mitochondrial branched-chain amino acid (BCAA) catabolism (p < 0.0001). In line with this finding, serum levels of insulin secretion-enhancing BCAAs were increased in obese male co-twins (9% increase, p = 0.025). Lending clinical relevance to the findings, in both sexes the observed aberrations in mitochondrial amino acid metabolism pathways in fat correlated closely with liver fat accumulation, insulin resistance, and hyperinsulinemia, early aberrations of acquired obesity in these healthy young adults. Conclusions Our findings emphasize a substantial role of mitochondrial energy- and amino acid metabolism in obesity and development of insulin resistance. PMID:18336063

  20. Partial Dosage Compensation in Strepsiptera, a Sister Group of Beetles

    PubMed Central

    Mahajan, Shivani; Bachtrog, Doris

    2015-01-01

    Sex chromosomes have evolved independently in many different taxa, and so have mechanisms to compensate for expression differences on sex chromosomes in males and females. Different clades have evolved vastly different ways to achieve dosage compensation, including hypertranscription of the single X in male Drosophila, downregulation of both X’s in XX Caenorhabditis, or inactivation of one X in female mammals. In the flour beetle Tribolium, the X appears hyperexpressed in both sexes, which might represent the first of two steps to evolve dosage compensation along the paths mammals may have taken (i.e., upregulation of X in both sexes, followed by inactivation of one X in females). Here we test for dosage compensation in Strepsiptera, a sister taxon to beetles. We identify sex-linked chromosomes in Xenos vesparum based on genomic analysis of males and females, and show that its sex chromosome consists of two chromosomal arms in Tribolium: The X chromosome that is shared between Tribolium and Strepsiptera, and another chromosome that is autosomal in Tribolium and another distantly related Strepsiptera species, but sex-linked in X. vesparum. We use RNA-seq (RNA sequencing) to show that dosage compensation along the X of X. vesparum is partial and heterogeneous. In particular, genes that are X-linked in both beetles and Strepsiptera appear fully dosage compensated probably through downregulation in both sexes, whereas genes on the more recently added X segment have evolved only partial dosage compensation. In addition, reanalysis of published RNA-seq data suggests that Tribolium has evolved dosage compensation, without hypertranscribing the X in females. Our results demonstrate that patterns of dosage compensation are highly variable across sex-determination systems and even within species. PMID:25601100

  1. Monozygotic twins with trisomy 18: a report of discordant phenotype.

    PubMed Central

    Schlessel, J S; Brown, W T; Lysikiewicz, A; Schiff, R; Zaslav, A L

    1990-01-01

    The predicted incidence of liveborn monozygotic trisomy 18 twins is one per million births. The first case of liveborn monozygotic trisomy 18 twins was reported in 1989 and we report a second case in which striking phenotypic discordance existed. The probability of monozygotic trisomy 18 twinning and the mechanisms for phenotypic discordance in trisomic twins is discussed. Images PMID:2246775

  2. 197. Photocopy of drawing, Twin Falls, Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    197. Photocopy of drawing, Twin Falls, Canal Company, date unknown. GATE STEMS AND LIFTING DEVICES, NO COUNTY; BLUEPRINT SKETCHES. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  3. 198. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    198. Photocopy of drawing, Twin Falls Canal Company, date unknown. SEGREGATION OF PUBLIC LAND, LINCOLN AND CASSIA COUNTIES; MAP. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  4. 121. MCMULLEN CREEK DRAW, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    121. MCMULLEN CREEK DRAW, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; OUTLET SIDE OF CREEK, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  5. 95. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    95. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY SOUTH OF FILER, IDAHO; OVERALL VIEW LOOKING EAST. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  6. 124. MCMULLEN CREEK HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    124. MCMULLEN CREEK HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; OVERALL SOUTH VIEW OF DRAW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  7. 109. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    109. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF FILER, IDAHO; OVERALL VIEW LOOKING WEST. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  8. 88. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    88. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF FILER, IDAHO; WEST VIEW OF CANAL AND GATES. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  9. 92. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    92. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY SOUTH OF FILER, IDAHO; CLOSE-UP OF OUTLET SIDE OF GATES, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  10. 91. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    91. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF FILER, IDAHO; NORTHEAST VIEW OF CANAL AND GATES. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  11. 96. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    96. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY SOUTH OF FILER, IDAHO; OUTLET SIDE OF CEDAR DRAW, WEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  12. 89. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    89. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF FILER, IDAHO; OUTLET SIDE OF CANAL, SOUTHWEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  13. 90. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    90. CEDAR DRAW SPILL, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF FILER, IDAHO; CLOSE-UP OF GATES. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  14. 94. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    94. CEDAR DRAW SPILL, LOW LINE CANAL, TWIN FALLS COUNTY SOUTH OF FILER, IDAHO; CLOSE-UP OF GATES FROM THE CANAL SIDE. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  15. 120. COTTONWOOD CUT AREA, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    120. COTTONWOOD CUT AREA, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; OVERALL VIEW OF THE COTTONWOOD CREEK DRAW, SOUTH VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  16. 131. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    131. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN FALLS COUNTY, SOUTH OF HANSEN, IDAHO; INLET SIDE OF LOW LINE CANAL, WEST VIEW. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  17. 28. VIEW FROM IMMEDIATELY DOWNSTREAM OF TWIN FALLS MAIN CANAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    28. VIEW FROM IMMEDIATELY DOWNSTREAM OF TWIN FALLS MAIN CANAL HEADWORKS WITH CANAL BRIDGE IN DISTANCE. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  18. 123. MCMULLEN CREEK, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    123. MCMULLEN CREEK, HIGH LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; SOUTH VIEW OF THE CREEK EMPTYING INTO THE HIGH LINE CANAL. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  19. 136. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    136. FORKS DIVERSION, HIGH LINE AND LOW LINE CANALS, TWIN FALLS COUNTY, SOUTH OF HANSEN, IDAHO; HIGH LINE GATES FROM THE CANAL SIDE. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  20. 160. Photocopy of drawing (taken from Twin Falls Canal Company ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    160. Photocopy of drawing (taken from Twin Falls Canal Company Field Book #361 #86, page 1). SCALE DRAWING, CANAL HEADGATES AND CANAL SURVEY, 'A' LINE. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  1. TWIN BUILDING LATTICES DO NOT HAVE ASYMPTOTIC CUT-POINTS

    E-print Network

    Caprace, Pierre-Emmanuel

    TWIN BUILDING LATTICES DO NOT HAVE ASYMPTOTIC CUT-POINTS PIERRE-EMMANUEL CAPRACE*, FRANÇOIS DAHMANI**, AND VINCENT GUIRARDEL** Abstract. We show that twin building lattices have linear divergence, which implies of asymptotic cones of twin building lattices. Theorem 1. The asymptotic cones of a twin building lattice do

  2. An unusual case of monozygotic epigastric heteropagus twinning

    Microsoft Academic Search

    Eui Ho Hwang; Seok Joo Han; Jin-Sung Lee; Myo Kyung Lee

    1996-01-01

    Epigastric heteropagus refers to unequal and asymmetric conjoined twins in which the dependent component (parasite) is smaller and usually attached to the epigastrium of the dominant component (autosite). Epigastric heteropagus is a very rare type of conjoined twins. It is generally assumed that conjoined twins represent a form of monozygotic twinning, but there has been no confirmation of this monozygotic

  3. Brain Neuroplasticity in Healthy, Hyperactive and Psychotic Children: Insights from Neuroimaging

    Microsoft Academic Search

    Judith L Rapoport; Nitin Gogtay

    2008-01-01

    Noninvasive brain imaging permits longitudinal studies of anatomic brain development in healthy and psychiatrically ill children. The time course for gray matter maturation varies by region and parallels earlier histological studies, indicating dynamic patterns of overproduction and regression. Developmental trajectories vary in relation to gender, intelligence, and overall functioning. Twin studies show high heritability for brain volumes, which varies with

  4. Fragile X syndrome and the (CGG)[sub n] mutation: Two families with discordant MZ twins

    SciTech Connect

    Kruyer, H.; Estivill, X.; Mila, M.; Ballesta, F.; Glover, G.; Carbonell, P. (Biochemistry and Clinical Genetics Center, Murcia (Spain))

    1994-03-01

    The fragile X phenotype has been found, in the majority of cases, to be due to the expansion of a CGG repeat in the 5'UTR region of the FMR-1 gene, accompanied by methylation of the adjacent CpG island and inactivation of the FMR-1 gene. Although several important aspects of genetics of fragile X have been resolved, it remains to be elucidated at which stage in development the transition from the premutation to the full mutation occurs. The authors present two families in which discordance between two sets of MZ twins illustrates two important genetic points. In one family, two affected MZ brothers differed in the number of CGG repeats, demonstrating in vivo mitotic instability of this CGG repeat and suggesting that the transition to the full mutation occurred postzygotically. In the second family, two MZ sisters had the same number of repeats, but only one was mentally retarded. When the methylation status of the FMR-1 CpG island was studied, the authors found that the majority of normal chromosomes had been inactivated in the affected twin, thus leading to the expression of the fragile X phenotype. 29 refs., 3 figs., 1 tab.

  5. Healthy Living after Stroke

    MedlinePLUS

    Healthy Living After Stroke Nutrition Good nutrition is one way to reduce your risk of having another ... content was last reviewed on 04/30/2014. Healthy Living Resource Guide for All Seniors Any person ...

  6. Pregnancy and Healthy Weight

    MedlinePLUS

    ... Spotlights Media Resources Interviews & Selected Staff Profiles Multimedia Pregnancy & Healthy Weight Skip sharing on social media links ... that maintaining a healthy weight before and during pregnancy can reduce the likelihood of negative effects for ...

  7. Twin and Triplet Drugs in Opioid Research

    NASA Astrophysics Data System (ADS)

    Fujii, Hideaki

    Twin and triplet drugs are defined as compounds that contain respectively two and three pharmacophore components exerting pharmacological effects in a molecule. The twin drug bearing the same pharmacophores is a "symmetrical twin drug", whereas that possessing different pharmacophores is a "nonsymmetrical twin drug." In general, the symmetrical twin drug is expected to produce more potent and/or selective pharmacological effects, whereas the nonsymmetrical twin drug is anticipated to show both pharmacological activities stemming from the individual pharmacophores (dual action). On the other hand, nonsymmetrical triplet drugs, which have two of the same pharmacophores and one different moiety, are expected to elicit both increased pharmacological action and dual action. The two identical portions could bind the same receptor sites simultaneously while the third portion could bind a different receptor site or enzyme. This review will mainly focus on the twin and triplet drugs with an evaluation of their in vivo pharmacological effects, and will also include a description of their pharmacology and synthesis.

  8. Monoamniotic Monochorionic Twins Discordant for Noncompaction Cardiomyopathy

    PubMed Central

    Ng, Dianna; Bouhlal, Yosr; Ursell, Philip C.; Shieh, Joseph T.C.

    2013-01-01

    Occasionally “identical twins” are phenotypically different, raising the question of zygosity and the issue of genetic versus environmental influences during development. We recently noted monochorionic-monoamniotic twins, one of which had an isolated cardiac abnormality, noncompaction cardiomyopathy, a condition characterized by cardiac ventricular hypertrabeculation. We examined the prenatal course and subsequent pathologic correlation since ventricular morphogenesis may depend on early muscular contraction and blood flow. The monochorionic-monoamniotic female twin pair was initially identified since one fetus presented with increased nuchal translucency. Complete heart block was later identified in the fetus with nuchal translucency who did not survive after delivery. In contrast, the unaffected twin had normal cardiac studies both prenatally and postnatally. Pathologic analysis of the affected twin demonstrated noncompaction of the left ventricle with dysplasia of the aortic and pulmonary valves. Dissection of the cardiac conduction system disclosed atrioventricular bundle fibrosis. Maternal lupus studies, amniocentesis with karyotype, and studies for 22q11.2 were normal. To test for zygosity, we performed multiple STR marker analysis and found that all markers were shared even using non-blood tissues from the affected twin. These studies demonstrate that monozygotic twins that are monochorionic monoamniotic can be discordant for cardiac noncompaction. The results suggest further investigation into the potential roles of pathologic fibrosis, contractility, and blood flow in cardiac ventricle development. PMID:23636980

  9. Keeping Your Voice Healthy

    MedlinePLUS

    Keeping Your Voice Healthy Keeping Your Voice Healthy Patient Health Information News media interested in covering the latest from AAO-HNS/F can ... voice-related. Key Steps for Keeping Your Voice Healthy Drink plenty of water. Moisture is good for ...

  10. Nanoscale Twins Formed by Plastic

    E-print Network

    Cambridge, University of

    6/9/10 PTM 2010 2 Fe­0.98C­1.46Si­1.89Mn­0.26Mo­1.26Cr­0.0 9V (wt-%) transformed at 200oC for 5 days Twins between Nano Bainite 6/9/10 PTM 2010 6 · TEM micrographs in an Fe-0.8C-2.0Si-1.5Mn-1.0Cr-0.2Mo-0/9/10 PTM 2010 7 TEM micrograph of lenticular martensite in an Fe-0.8C-2.0Si-1.5Mn-1.2Cr- 0.3Mo-0.1V (in wt

  11. Breastfeeding Twins: A Qualitative Study

    PubMed Central

    Alvur, Tuncay Muge; Kose, Dilek; Nemut, Tijen

    2013-01-01

    The purpose of this qualitative research was to explore the needs and difficulties of mothers who had multiple babies at Sakarya County by focusing on their breastfeeding experience. Ten mothers who gave birth to multiple infants participated in the study voluntarily. The framework method of data analysis was applied systematically both within and across cases, with categories and themes identified by reading transcripts of interviews. Major themes generated from focus narrative interviews are described. These themes are: willingness of mothers to breastfeed and continue, management of breastfeeding, use of pacifier, daily life, ?nstructions of healthcare personnel, and advices from practice of experienced mothers. This study showed that women were aware of the importance of mother's milk for their babies. They all, somehow, made intensive efforts to breastfeed their twins. Women who expect and/or have multiple babies need much more support and guidance, which may include advice for nutritional and daily care. PMID:24592592

  12. Silicic Eruptions of the Past 50 kyr at the Three Sisters Volcanic Cluster

    NASA Astrophysics Data System (ADS)

    Calvert, A. T.; Hildreth, W.; Fierstein, J.

    2003-12-01

    The Three Sisters volcanic cluster in the central Oregon Cascades consists of mafic to intermediate stratovolcanoes surrounded by mafic and silicic flows and domes. The bulk of South and Middle Sister are late Pleistocene while North Sister is middle Pleistocene (Schmidt and Grunder, 2003 GSA abs.). Thick rhyolite and dacite lava flows and domes are rich in potassium, and young glaciation exposes holocrystalline groundmass textures ideal for argon geochronology. Several of these silicic flows bracket stratovolcano growth, and precise geochronology illuminates a rich basalt to rhyolite history in the cluster over the past 50 kyr. Careful step-heating 40Ar/39Ar experiments yield excellent plateau ages with radiogenic yields often above 5% on rocks as young as 20 ka. Most samples have well-determined isochrons with atmospheric (40/36 = 295.5) intercepts, although several have intercepts as low as 286. South Sister is a composite cone with an andesite/dacite base (Hodge Crest) and a young andesite summit sequence. The basal flow of the 300m-thick, youngest conformable stack of andesite lavas at the summit is 27+/-3 ka. Unconformably underlying portions date back to at least 50 ka based on ages of overlapping silicic flows. The base of Middle Sister is andesite overlain by ˜300m of olivine basalt. Some Middle Sister andesites and all basalts overlie a distinctive dacite agglutinate (20+/-2 ka) in the South/Middle Sister saddle. All Middle Sister lavas underlie a thick dacite flow (14+/-3 ka) that vented at 8500 ft (2600m) on its S flank. Dacite lava flows erupted from the Middle/North Sister saddle at 27+/-2 and 18+/-2 ka. Additionally, several >100m-thick rhyolite and dacite lavas vented low on the flanks of the cluster. Obsidian Cliff rhyolite (37.8+/-1.8 ka) and Lane Plateau dacite (21.4+/-1.9 ka) erupted W of Middle Sister, the Dew Lake dacite (32.3+/-1.8 ka) located near the locus of the INSAR anomaly W of South Sister flowed around a 148+/-4 ka (knob 6482) basalt and near the 149+/-5 ka (The Husband), 159+/-10 ka (Upper Mesa Creek) and 279+/-6 ka (The Sphinx) basalts. The south flank of South Sister is dominated by the late Holocene rhyolites of Rock Mesa and the Devil's Hill chain and about ten 24-50 ka rhyolite and dacite domes and flows. A 100m-thick 35+/-2 ka rhyolite lava also extends NE from South Sister into Squaw Creek. In sum, South and Middle Sisters are mafic to intermediate and their youngest activity is coeval. Silicic flows on and around the volcanic cluster are voluminous, abundant and young.

  13. [Bellagio Report on Healthy Agriculture, Healthy Nutrition, Healthy People].

    PubMed

    Simopoulos, Artemis P; Bourne, Peter G; Faergeman, Ole

    2013-01-01

    The Bellagio Report on Healthy Agriculture, Healthy Nutrition, Healthy People is the result of the meeting held at the Rockefeller Foundation Bellagio Center in Lake Como, Italy, 29 October-2 November 2012. The meeting was science-based but policy-oriented. The role and amount of healthy and unhealthy fats, with attention to the relative content of omega-3 and omega-6 fatty acids, sugar, and particularly fructose in foods that may underlie the epidemics of non-communicable diseases (NCD's) worldwide were extensively discussed. The report concludes that sugar consumption, especially in the form of high energy fructose in soft drinks, poses a major and insidious health threat, especially in children, and most diets, although with regional differences, are deficient in omega-3 fatty acids and too high in omega-6 fatty acids. Gene-nutrient interactions in growth and development and in disease prevention are fundamental to health, therefore regional Centers on Genetics, Nutrition and Fitness for Health should be established worldwide. Heads of state and government must elevate, as a matter of urgency, Nutrition as a national priority, that access to a healthy diet should be considered a human right and that the lead responsibility for Nutrition should be placed in Ministries of Health rather than agriculture so that the health requirements drive agricultural priorities, not vice versa. Nutritional security should be given the same priority as food security. PMID:24506349

  14. Bellagio report on healthy agriculture, healthy nutrition, healthy people.

    PubMed

    Simopoulos, Artemis P; Bourne, Peter G; Faergeman, Ole

    2013-02-01

    The Bellagio Report on Healthy Agriculture, Healthy Nutrition, Healthy People is the result of the meeting held at the Rockefeller Foundation Bellagio Center in Lake Como, Italy, 29 October-2 November 2012. The meeting was science-based but policy-oriented. The role and amount of healthy and unhealthy fats, with attention to the relative content of omega-3 and omega-6 fatty acids, sugar, and particularly fructose in foods that may underlie the epidemics of non-communicable diseases (NCD's) worldwide were extensively discussed. The report concludes that sugar consumption, especially in the form of high energy fructose in soft drinks, poses a major and insidious health threat, especially in children, and most diets, although with regional differences, are deficient in omega-3 fatty acids and too high in omega-6 fatty acids. Gene-nutrient interactions in growth and development and in disease prevention are fundamental to health, therefore regional Centers on Genetics, Nutrition and Fitness for Health should be established worldwide. Heads of state and government must elevate, as a matter of urgency, Nutrition as a national priority, that access to a healthy diet should be considered a human right and that the lead responsibility for Nutrition should be placed in Ministries of Health rather than agriculture so that the health requirements drive agricultural priorities, not vice versa. Nutritional security should be given the same priority as food security. PMID:23385371

  15. Bellagio Report on Healthy Agriculture, Healthy Nutrition, Healthy People.

    PubMed

    Simopoulos, Artemis P; Bourne, Peter G; Faergeman, Ole

    2013-03-01

    The Bellagio Report on Healthy Agriculture, Healthy Nutrition, Healthy People is the result of the meeting held at the Rockefeller Foundation Bellagio Center in Lake Como, Italy 30 October-1 November, 2012. The meeting was science-based but policy-oriented. The role and amount of healthy and unhealthy fats, with attention to the relative content of omega-3 and omega-6 fatty acids, sugar, and particularly fructose in foods that may underlie the epidemics of non-communicable diseases (NCDs) worldwide were extensively discussed. The report concludes that sugar consumption, especially in the form of high energy fructose in soft drinks, poses a major and insidious health threat, especially in children, and most diets, although with regional differences, are deficient in omega-3 fatty acids and too high in omega-6 fatty acids. Gene-nutrient interactions in growth and development and in disease prevention are fundamental to health, therefore regional Centers on Genetics, Nutrition and Fitness for Health should be established worldwide. Heads of state and government must elevate, as a matter of urgency, nutrition as a national priority, that access to a healthy diet should be considered a human right and that the lead responsibility for nutrition should be placed in Ministries of Health rather than agriculture so that the health requirements drive agricultural priorities, not vice versa. Nutritional security should be given the same priority as food security. PMID:23698143

  16. Parasitic twin with gastroschisis is one of the rarest variant of conjoined twins: a case report.

    PubMed

    Baskaran, D; Aleem, M A; Ravi, R

    2015-04-01

    We report a case of parasitic twin or incomplete or heteropagus twining of extra portions of a pelvis, lower and upper limbs, duplication of genitalia and herniation of intestinal tract with spleen-variant of conjoined twinning (CT) consistent with fusion of two embryos followed by resorption of the caudal half of one of them, resulting in a normal male baby with the upper half of a male parasitic twin fused to his chest. PMID:25972657

  17. A Manyfold Increase in Sister Chromatid Exchanges in Bloom's Syndrome Lymphocytes

    PubMed Central

    Chaganti, R. S. K.; Schonberg, S.; German, James

    1974-01-01

    Dividing cells from persons with Bloom's syndrome, an autosomal recessive disorder of growth, exhibit increased numbers of chromatid breaks and rearrangements. A highly characteristic feature of the chromosome instability in this syndrome is the tendency for exchanges to occur between chromatids of homologous chromosomes at homologous sites. In the present experiments, a cytogenetic technique by which the sister chromatids of a metaphase chromosome are stained differentially has been used to demonstrate a striking and possibly specific, but hitherto unrecognized, increase in the frequency with which sister chromatids also exchange segments. The cells were grown in bromodeoxyuridine and stained with 33258 Hoechst and Giemsa. Whereas phytohemagglutinin-stimulated lymphocytes from normal controls had a mean of 6.9 sister chromatid exchanges per metaphase (range 1-14), those from persons with Bloom's syndrome had a mean of 89.0 (range 45-162). Normal frequencies of sister chromatid exchanges were found in cells heterozygous for the Bloom's syndrome gene, and also in cells either homozygous or heterozygous for the genes of the Louis-Bar (ataxia telangiectasia) syndrome and Fanconi's anemia, two other rare disorders characterized by chromosome instability. In a differentially stained chromatid interchange configuration discovered during the study, it was possible to determine the new distribution of both sister and non-sister-but-homologous chromatids that had resulted from numerous exchanges. By following shifts in the pattern of staining from chromatid to chromatid, visual evidence was obtained that the quadriradial configurations long recognized as characteristic of Bloom's syndrome represent exchanges between homologous chromosomes, apparently at homologous points. We postulate that the increase in the frequency of exchanges between nonsister-but-homologous chromatids and those between sister chromatids in Bloom's syndrome represents aspects of one and the same disturbance. A study of this phenomenon in relation to the clinical features of Bloom's syndrome may be helpful eventually in understanding the biological significance of chromatid exchange in somatic cells. Images PMID:4140506

  18. Healthy Foods for a Healthy Body

    NSDL National Science Digital Library

    Miss Mansfield

    2011-08-05

    During this activity we will be learning about healthy foods and why they are important to our bodies and minds. First thing is first, let's learn about what foods are healthy and then move on to why we need them. Follow the link bellow and play the blast off game, enter in the foods closest to what you actually eat and the activities that you like and do. Blast Off Game After you ...

  19. [Simultaneous supraventricular tachycardia in twin premature newborns of a monochorionic pregnancy].

    PubMed

    Chêne, M-A; Parlier, G; Denis, J; Siret, D

    2013-02-01

    Supraventricular tachycardia (SVT) is the most common pediatric arrhythmia. SVT occurs more frequently in infants under 1 year of age, most of whom have structurally normal hearts. Pejorative predisposing factors such as congenital heart disease exist in only a few patients. In patients with a healthy heart, SVT is due to re-entry via an accessory pathway. Some articles describe occurrence of SVT in 1 of the fetuses or newborns from multiple gestation pregnancies, but few cases report simultaneous start of SVT in twins. This observation describes simultaneous occurrence of SVT in both premature infants from a monochorionic twin gestation. Successful emergency treatment consisted in physical maneuvers increasing vagal activity. The twin neonates then received a prolonged anti-arrhythmic amiodarone treatment. Both of their electrocardiograms were normal, without Wolf-Parkinson-White syndrome. Both of their echocardiography results showed aneurysms of the atrial septum. At 6 months of age, SVT had not recurred. This case describes an original presentation of simultaneous SVT in twins and highlights the efficacy of vagal maneuvers to manage stable patients. We discuss the existence of benign predisposing heart structural abnormalities. PMID:23245861

  20. Development of the Preterm Gut Microbiome in Twins at Risk of Necrotising Enterocolitis and Sepsis

    PubMed Central

    Stewart, Christopher J.; Marrs, Emma C. L.; Nelson, Andrew; Lanyon, Clare; Perry, John D.; Embleton, Nicholas D.; Cummings, Stephen P.; Berrington, Janet E.

    2013-01-01

    The preterm gut microbiome is a complex dynamic community influenced by genetic and environmental factors and is implicated in the pathogenesis of necrotising enterocolitis (NEC) and sepsis. We aimed to explore the longitudinal development of the gut microbiome in preterm twins to determine how shared environmental and genetic factors may influence temporal changes and compared this to the expressed breast milk (EBM) microbiome. Stool samples (n = 173) from 27 infants (12 twin pairs and 1 triplet set) and EBM (n = 18) from 4 mothers were collected longitudinally. All samples underwent PCR-DGGE (denaturing gradient gel electrophoresis) analysis and a selected subset underwent 454 pyrosequencing. Stool and EBM shared a core microbiome dominated by Enterobacteriaceae, Enterococcaceae, and Staphylococcaceae. The gut microbiome showed greater similarity between siblings compared to unrelated individuals. Pyrosequencing revealed a reduction in diversity and increasing dominance of Escherichia sp. preceding NEC that was not observed in the healthy twin. Antibiotic treatment had a substantial effect on the gut microbiome, reducing Escherichia sp. and increasing other Enterobacteriaceae. This study demonstrates related preterm twins share similar gut microbiome development, even within the complex environment of neonatal intensive care. This is likely a result of shared genetic and immunomodulatory factors as well as exposure to the same maternal microbiome during birth, skin contact and exposure to EBM. Environmental factors including antibiotic exposure and feeding are additional significant determinants of community structure, regardless of host genetics. PMID:24023682

  1. Resemblance of tongue anatomy in twins.

    PubMed

    Spielman, Andrew I; Brand, Joseph G; Buischi, Yvonne; Bretz, Walter A

    2011-06-01

    This study compared the anatomical features of the tongue in nine pairs of twins - six monozygotic and three dizygotic. The aim of the project was to determine if tongues, like any other anatomical structure, could be used to reliably predict relatedness given that tongue shape, presentation and surface can be influenced by environment. Using the method of forced choice, 30 subjects were asked to match the photographs of tongues from twins. Our data indicate that, based on visual assessment, monozygotic twins have highly similar tongues (60% matches); similarly, dizygotic twins were matched 31% of the time, which is a higher probability than would be expected from random selection. This study should help identify baseline and control data in future behavioral studies of taste, which has a genetic basis. PMID:21623658

  2. Resemblance of Tongue Anatomy in Twins

    PubMed Central

    Spielman, Andrew I.; Brand, Joseph G.; Buischi, Yvonne; Bretz, Walter A.

    2011-01-01

    This study compared the anatomical features of the tongue in nine pairs of twins — six monozygotic and three dizygotic. The aim of the project was to determine if tongues, like any other anatomical structure, could be used to reliably predict relatedness given that tongue shape, presentation and surface can be influenced by environment. Using the method of forced choice, 30 subjects were asked to match the photographs of tongues from twins. Our data indicate that, based on visual assessment, monozygotic twins have highly similar tongues (60% matches); similarly, dizygotic twins were matched 31% of the time, which is a higher probability than would be expected from random selection. This study should help identify baseline and control data in future behavioral studies of taste, which has a genetic basis. PMID:21623658

  3. Asymmetric twins in rhombohedral boron carbide

    SciTech Connect

    Fujita, Takeshi, E-mail: tfujita@wpi-aimr.tohoku.ac.jp; Guan, Pengfei; Madhav Reddy, K.; Hirata, Akihiko; Guo, Junjie [WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); Chen, Mingwei, E-mail: mwchen@wpi-aimr.tohoku.ac.jp [WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030 (China)

    2014-01-13

    Superhard materials consisting of light elements have recently received considerable attention because of their ultrahigh specific strength for a wide range of applications as structural and functional materials. However, the failure mechanisms of these materials subjected to high stresses and dynamic loading remain to be poorly known. We report asymmetric twins in a complex compound, boron carbide (B{sub 4}C), characterized by spherical-aberration-corrected transmission electron microscopy. The atomic structure of boron-rich icosahedra at rhombohedral vertices and cross-linked carbon-rich atomic chains can be clearly visualized, which reveals unusual asymmetric twins with detectable strains along the twin interfaces. This study offers atomic insights into the structure of twins in a complex material and has important implications in understanding the planar defect-related failure of superhard materials under high stresses and shock loading.

  4. Severe Anisometropic Myopia in Identical Twins

    PubMed Central

    Adenuga, Olukorede O.

    2014-01-01

    High anisometropic myopia is a rare condition in twins. Genetic factors have been implicated in its development and there may be an association with vision-threatening complications. A pair of 11-year-old twins presented with poor distance vision in both eyes. Detailed ocular examination was performed including slit lamp examination, dilated funduscopy, cycloplegic refraction, keratometry and axial length measurement. The objective refraction was -6.50DS -2.00DC × 180 (right eye), -1.00DS (left eye) for the first twin; -13.75DS -2.25DC × 180 (right eye), -0.50DS -0.75DC × 04 (left eye) for the second twin. This case suggests an underlying genetic defect in the development of myopia. PMID:25100917

  5. GM1 gangliosidosis type 1 in twins

    Microsoft Academic Search

    C M Ginsburg; C G Long

    1977-01-01

    This report describes 7-month-old monozygotic twin female infants with GM1 gangliosidosis type I. In addition to the usual clinical and biochemical abnormalities generalized intracutaneous telangiectasis were present in both infants.

  6. MANIA IN TWINS : A CASE REPORT

    PubMed Central

    Srivastava, Shrikant; Khalid, Abdul; Lal, Narottam

    1996-01-01

    A 19 year old patient presented with a first episode of mania. A year ago his twin brother had developed a similar illness. In the family, there was no other history of psychiatric disorders. PMID:21584143

  7. Shock Driven Twinning in Tantalum Single Crystals

    SciTech Connect

    McNaney, J M; HSUING, L M; Barton, N R; Kumar, M

    2009-07-20

    Recovery based observations of high pressure material behavior generated under high explosively driven flyer based loading conditions are reported. Two shock pressures, 25, and 55 GPa and four orientations {l_brace}(100), (110), (111), (123){r_brace} were considered. Recovered material was characterized using electron backscatter diffraction along with a limited amount of transmission electron microscopy to assess the occurrence of twinning under each test condition. Material recovered from 25 GPa had a very small fraction of twinning for the (100), (110), and (111) oriented crystals while a more noticeable fraction of the (123) oriented crystal was twinned. Material recovered from 55 GPa showed little twinning for (100) orientation slightly more for the (111) orientation and a large area fraction for the (123) orientation. The EBSD and TEM observations of the underlying deformation substructure are rationalized by comparing with previous static and dynamic results.

  8. Stolen twin: fascination and curiosity/twin research reports: evolution of sleep length; dental treatment of craniopagus twins; cryopreserved double embryo transfer; gender options in multiple pregnancy/current events: appendectomy in one twin; autistic twin marathon runners; 3D facial recognition; twin biathletes.

    PubMed

    Segal, Nancy L

    2014-02-01

    The story of her allegedly stolen twin brother in Armenia is recounted by a 'singleton twin' living in the United States. The behavioral consequences and societal implications of this loss are considered. This case is followed by twin research reports on the evolution of sleep length, dental treatment of craniopagus conjoined twins, cryopreserved double embryo transfer (DET), and gender options in multiple pregnancy. Current events include the diagnosis of appendectomy in one identical twin, the accomplishments of autistic twin marathon runners, the power of three-dimensional (3D) facial recognition, and the goals of twin biathletes heading to the 2014 Sochi Olympics in Russia. PMID:24418634

  9. Semiconductor Waveguide Source of Counterpropagating Twin Photons

    Microsoft Academic Search

    L. Lanco; S. Ducci; J.-P. Likforman; X. Marcadet; J. A. W. van Houwelingen; H. Zbinden; G. Leo; V. Berger

    2006-01-01

    We experimentally demonstrate an integrated semiconductor source of counterpropagating twin photons in the telecom range. A pump beam impinging on top of an AlGaAs waveguide generates parametrically two counterpropagating, orthogonally polarized signal\\/idler guided modes. A 2 mm long waveguide emits at room temperature one average photon pair per pump pulse, with a spectral linewidth of 0.15 nm. The twin character

  10. Expansion and division of conjoined twins

    Microsoft Academic Search

    M. L Hilfiker; M Hart; R Holmes; M Cooper; J Kriett; D Collins; M Allshouse

    1998-01-01

    Omphalopagus conjoined twins were born by cesarean section after their 24-year-old gravida 2, para 1 mother went into labor at 35 weeks' gestation. Initial studies included roentenograms, an upper gastrointestinal study, small bowel follow-through, and computerized tomography with intravenous contrast from neck through pelvis. Results of these studies showed that the twins had very little shared vasculature, but did share

  11. Anaesthesia of conjoined twins - case series.

    PubMed

    Kobylarz, Krzysztof

    2014-01-01

    As any complex surgical procedure, separation of conjoined twins requires complex anaesthesia management that is a prerequisite of performing the operation, while complex postoperative care is a decisive factor in the survival of the patients. The paper describes the anaesthetic management for surgical operations in ten sets of conjoined twins in the Children's Hospital of Cracow during 1977-2005. The anaesthetic technique and associated problems are summarized. PMID:24858964

  12. Digital Data for Volcano Hazards of the Three Sisters Region, Oregon

    USGS Publications Warehouse

    Schilling, S.P.; Doelger, S.; Scott, W.E.; Iverson, R.M.

    2008-01-01

    Three Sisters is one of three active volcanic centers that lie close to rapidly growing communities and resort areas in Central Oregon. The major composite volcanoes of this area are clustered near the center of the region and include South Sister, Middle Sister, and Broken Top. Additionally, hundreds of mafic volcanoes are scattered throughout the Three Sisters area. These range from small cinder cones to large shield volcanoes like North Sister and Belknap Crater. Hazardous events include landslides from the steep flanks of large volcanoes and floods, which need not be triggered by eruptions, as well as eruption-triggered events such as fallout of tephra (volcanic ash) and lava flows. A proximal hazard zone roughly 20 kilometers (12 miles) in diameter surrounding the Three Sisters and Broken Top could be affected within minutes of the onset of an eruption or large landslide. Distal hazard zones that follow river valleys downstream from the Three Sisters and Broken Top could be inundated by lahars (rapid flows of water-laden rock and mud) generated either by melting of snow and ice during eruptions or by large landslides. Slow-moving lava flows could issue from new mafic volcanoes almost anywhere within the region. Fallout of tephra from eruption clouds can affect areas hundreds of kilometers (miles) downwind, so eruptions at volcanoes elsewhere in the Cascade Range also contribute to volcano hazards in Central Oregon. Scientists at the Cascades Volcano Observatory created a geographic information system (GIS) data set which depicts proximal and distal lahar hazard zones as well as a regional lava flow hazard zone for Three Sisters (USGS Open-File Report 99-437, Scott and others, 1999). The various distal lahar zones were constructed from LaharZ software using 20, 100, and 500 million cubic meter input flow volumes. Additionally, scientists used the depositional history of past events in the Three Sisters Region as well as experience and judgment derived from the study of volcanoes to help construct the regional hazard zone.

  13. Identifying possible sister groups of Cryptocercidae+Isoptera: a combined molecular and morphological phylogeny of Dictyoptera.

    PubMed

    Djernæs, Marie; Klass, Klaus-Dieter; Eggleton, Paul

    2015-03-01

    Termites (Isoptera) offer an alternative model for the development of eusociality which is not dependent on a high degree of relatedness as found between sisters in hymenopterans (bees, wasps, ants). Recent phylogenetic studies have established that termites belong within the cockroaches as sister to the subsocial Cryptocercidae. Cryptocercidae shares several important traits with termites, thus we need to understand the phylogenetic position of Cryptocercidae+Isoptera to determine how these traits evolved. However, placement of Cryptocercidae+Isoptera is still uncertain. We used both molecular (12S, 16S, COII, 18S, 28S, H3) and morphological characters to reconstruct the phylogeny of Dictyoptera. We included all previously suggested sister groups of Cryptocercidae+Isoptera as well as taxa which might represent additional major cockroach lineages. We used Bayes factors to test different sister groups for Cryptocercidae+Isoptera and assessed character support for the consensus tree based on morphological characters and COII amino acid data. We used the molecular data and fossil calibration to estimate divergence times. We found the most likely sister groups of Cryptocercidae+Isoptera to be Tryonicidae, Anaplecta or Tryonicidae+Anaplecta. Anaplecta has never previously been suggested as sister group or even close to Cryptocercidae+Isoptera, but was formerly placed in Blaberoidea as sister to the remaining taxa. Topological tests firmly supported our new placement of Anaplecta. We discuss the morphological characters (e.g. retractable genitalic hook) that have contributed to the previous placement of Anaplecta in Blaberoidea as well as the factors that might have contributed to a parallel development of genitalic features in Anaplecta and Blaberoidea. Cryptocercidae+Isoptera is placed in a clade with Tryonicidae, Anaplecta and possibly Lamproblattidae. Based on this, we suggest that wood-feeding, and the resultant need to conserve nitrogen, may have been an important factor in the development of termite eusociality. Nocticolidae was placed as sister group to Latindia+Paralatindia (both Corydiidae), this clade was in turn placed as sister group to the remaining Corydiidae. The Nocticolidae+Corydiidae clade is supported by both morphological and COII amino acid changes. Our divergence time estimates placed the split between Mantodea and Blattodea at 273mya (middle Permian) and the splits between the major blattodean lineages no later than 200mya (end of Triassic). PMID:25194324

  14. Birth of twin males with normal karyotype after intracytoplasmic sperm injection with use of testicular spermatozoa from a nonmosaic patient with Klinefelter’s syndrome

    Microsoft Academic Search

    Florencia Nodar; Sabrina De Vincentiis; Santiago Brugo Olmedo; Sergio Papier; Fernando Urrutia; An??bal A Acosta

    1999-01-01

    Objective: To report the birth of healthy twin males after the use of testicular spermatozoa from a nonmosaic patient with Klinefelter’s syndrome.Design: Case report.Setting: Private reproduction center with university affiliation.Patient(s): A couple undergoing intracytoplasmic sperm injection (ICSI) combined with testicular sperm extraction because of the husband’s secretory azoospermia and a nonmosaic 47,XXY peripheral blood karyotype. The wife, a healthy female,

  15. Healthy Swimming/Recreational Water

    MedlinePLUS

    ... Facts Index of Healthy Water-related Topics Healthy Water Sites Healthy Water Home Drinking Water Healthy Swimming/ ... minimizing the risk of illness and injury. Recreational Water Illness (noun): Illness caused by germs and chemicals ...

  16. Mechanics of Sister Chromatids studied with a Polymer Model English</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Zhang, Yang; Isbaner, Sebastian; Heermann, Dieter</p> <p>2013-10-01</p> <p><span class="hlt">Sister</span> chromatid cohesion denotes the phenomenon that <span class="hlt">sister</span> chromatids are initially attached to each other in mitosis to guarantee the error-free distribution into the daughter cells. Cohesion is mediated by binding proteins and only resolved after mitotic chromosome condensation is completed. However, the amount of attachement points required to maintain <span class="hlt">sister</span> chromatid cohesion while still allowing proper chromosome condensation is not known yet. Additionally the impact of cohesion on the mechanical properties of chromosomes also poses an interesting problem. In this work we study the conformational and mechanical properties of <span class="hlt">sister</span> chromatids by means of computer simulations. We model both protein-mediated cohesion between <span class="hlt">sister</span> chromatids and chromosome condensation with a dynamic binding mechanisms. We show in a phase diagram that only specific link concentrations lead to connected and fully condensed chromatids that do not intermingle with each other nor separate due to entropic forces. Furthermore we show that dynamic bonding between chromatids decrease the Young's modulus compared to non-bonded chromatids.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4110534"><span id="translatedtitle">Two <span class="hlt">sisters</span> reveal autosomal recessive inheritance of epidermodysplasia verruciformis: a case report</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p></p> <p>2014-01-01</p> <p>Background Epidermodysplasia verruciformis is a rare genodermatosis characterized by a unique susceptibility to cutaneous human papillomaviruses infection. Most patients show autosomal recessive patterns of inheritance. Case presentation We report a case of two <span class="hlt">sisters</span> with clinically epidermodysplasia verruciformis specific lesions on the face, neck, trunk, and extremities. PCR analysis indicated the presence of human papillomavirus type 5 in the lesions. Electron microscopic examination showed viral-like particles in keratinocyte nuclei and the stratum corneum of the epidermodysplasia verruciformis lesions. In addition, we examined the EVER1 and EVER2 genes using eight different primer pairs without finding any nonsense or frameshift mutations in the gDNA from lymphocytes of the elder <span class="hlt">sister</span>. Conclusions In this report, the patient’s parents did not have epidermodysplasia verruciformis lesions or a consanguineous marriage. EV did not develop in the elder <span class="hlt">sister</span> until five years of age, so the parents did not perceive EV as an inherited disease. The probability that EV developed in both <span class="hlt">sisters</span> was only 6.25%. Thus, it is rare for both <span class="hlt">sisters</span> to develop epidermodysplasia verruciformis lesions considering that the parents were presumed to be carriers and the disease reveal an autosomal recessive pattern of inheritance. PMID:25048734</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2063475"><span id="translatedtitle">Organization of <span class="hlt">sister</span> origins and replisomes during multifork DNA replication in Escherichia coli</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Fossum, Solveig; Crooke, Elliott; Skarstad, Kirsten</p> <p>2007-01-01</p> <p>The replication period of Escherichia coli cells grown in rich medium lasts longer than one generation. Initiation thus occurs in the ‘mother-' or ‘grandmother generation'. <span class="hlt">Sister</span> origins in such cells were found to be colocalized for an entire generation or more, whereas <span class="hlt">sister</span> origins in slow-growing cells were colocalized for about 0.1–0.2 generations. The role of origin inactivation (sequestration) by the SeqA protein in origin colocalization was studied by comparing sequestration-deficient mutants with wild-type cells. Cells with mutant, non-sequesterable origins showed wild-type colocalization of <span class="hlt">sister</span> origins. In contrast, cells unable to sequester new origins due to loss of SeqA, showed aberrant localization of origins indicating a lack of organization of new origins. In these cells, aberrant replisome organization was also found. These results suggest that correct organization of <span class="hlt">sister</span> origins and <span class="hlt">sister</span> replisomes is dependent on the binding of SeqA protein to newly formed DNA at the replication forks, but independent of origin sequestration. In agreement, in vitro experiments indicate that SeqA is capable of pairing newly replicated DNA molecules. PMID:17914458</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-STC&redirectUrl=http://www.osti.gov/scitech/biblio/478890"><span id="translatedtitle">Neuropsychological profiles of three <span class="hlt">sisters</span> homozygous for the fragile X premutation</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Mazzocco, M.M.M. [Johns Hopkins School of Medicine, Baltimore, MD (United States)] [Johns Hopkins School of Medicine, Baltimore, MD (United States); Holden, J.J.A. [Ongwanada Resource Centre, Kingston, Ontario (Canada)] [Ongwanada Resource Centre, Kingston, Ontario (Canada)</p> <p>1996-08-09</p> <p>Fragile X syndrome (fraX) is associated with an amplification of a CGG repeat within the fraX mental retardation (FMR-1) gene. We describe an exceptional family in which 3 adult <span class="hlt">sisters</span> are homozygous for the FMR-1 premutation. Each <span class="hlt">sister</span> inherited 2 premutation alleles (ca. 80 CGG repeats) from their biologically unrelated parents. The 3 <span class="hlt">sisters</span> were administered measures of executive function, visual spatial, memory, and verbal skills. Deficiencies in the first 2 of these domains have been reported among females with the full mutation. The <span class="hlt">sisters</span>` performances were compared with available normative data and with published group means for females affected by fraX. These women did not appear to have verbal or memory difficulties. None of the women demonstrated a global executive function deficit, and none had global deficits in spatial ability. The profiles of these <span class="hlt">sisters</span> are consistent with reports that the fragile X premutation does not affect cognitive performance. 31 refs., 1 fig., 4 tabs.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4182971"><span id="translatedtitle">Imperfect <span class="hlt">twinning</span>: a clinical and ethical dilemma</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Denardin, Daniela; Telles, Jorge Alberto B.; Betat, Rosilene da Silveira; Fell, Paulo Renato K.; da Cunha, André Campos; Targa, Luciano Vieira; Zen, Paulo Ricardo G.; Rosa, Rafael Fabiano M.</p> <p>2013-01-01</p> <p>OBJECTIVE To review the history, epidemiology, etiology, gestational aspects, diagnosis and prognosis of imperfect <span class="hlt">twinning</span>. DATA SOURCES Scientific articles were searched in PubMed, SciELO and Lilacs databases, using the descriptors "conjoined <span class="hlt">twins</span>", "multiple pregnancy", "ultrasound", "magnetic resonance imaging" and "prognosis". The research was not delimited to a specific period of time and was supplemented with bibliographic data from books. DATA SYNTHESIS: The description of conjoined <span class="hlt">twins</span> is legendary. The estimated frequency is 1/45,000-200,000 births. These <span class="hlt">twins</span> are monozygotic, monochorionic and usually monoamniotic. They can be classified by the most prominent fusion site, by the symmetry between the conjoined <span class="hlt">twins</span> or by the sharing structure. The diagnosis can be performed in the prenatal period or after birth by different techniques, such as ultrasound, magnetic resonance imaging and echocardiography. These tests are of paramount importance for understanding the anatomy of both fetuses/children, as well as for prognosis and surgical plan determination. CONCLUSIONS Although imperfect <span class="hlt">twinning</span> is a rare condition, the prenatal diagnosis is very important in order to evaluate the fusion site and its complexity. Hence, the evaluation of these children should be multidisciplinary, involving mainly obstetricians, pediatricians and pediatric surgeons. However, some decisions may constitute real ethical dilemmas, in which different points should be discussed and analyzed with the health team and the family. PMID:24142323</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_14");'>14</a></li> <li><a href="#" onclick='return showDiv("page_15");'>15</a></li> <li class="active"><span>16</span></li> <li><a href="#" onclick='return showDiv("page_17");'>17</a></li> <li><a href="#" onclick='return showDiv("page_18");'>18</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_16 --> <div id="page_17" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_15");'>15</a></li> <li><a href="#" onclick='return showDiv("page_16");'>16</a></li> <li class="active"><span>17</span></li> <li><a href="#" onclick='return showDiv("page_18");'>18</a></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="321"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4493754"><span id="translatedtitle">The Finnish <span class="hlt">Twin</span> Cohort Study: an Update</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Kaprio, Jaakko</p> <p>2015-01-01</p> <p>In 2002 and 2006 review papers have described the Finnish <span class="hlt">Twin</span> Cohort and studies conducted on these population-based, longitudinal data-sets with extensive follow-up data. Three cohorts have been established, the older <span class="hlt">twin</span> cohort in the 1970s, and the Finntwin12 and Finntwin16 studies initiated in the 1990s. The present review provides on update on the latest data collections conducted since the previous review. These cover the fourth waves of data collection in the older cohort (<span class="hlt">twins</span> born before 1958) and Finntwin12 (<span class="hlt">twins</span> born 1983–1987). The fifth wave of data collection in Finntwin16 (<span class="hlt">twins</span> born 1975–1979) included also assessments of their spouses/partners. An analysis of mortality in the older cohort from 1975 to 2009 indicates that the mortality of adult <span class="hlt">twins</span> (as individuals) does not differ from the population at large. Based on the cohorts, many sub-studies with more detailed phenotyping and collection of omics data have been conducted or are in progress. We also contribute to numerous national and international collaborations. PMID:23298696</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/24852698"><span id="translatedtitle">Assessment of genotoxicity associated with Behcet's disease using <span class="hlt">sister</span>-chromatid exchange assay: vitamin E versus mitomycin C.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Khabour, Omar F; Alawneh, Khaldon; Al-Kofahi, Etizaz; Mesmar, Fahmee</p> <p>2014-05-23</p> <p>Behcet's disease (BD) is a multisystemic chronic inflammatory disorder that presents throughout the world with high frequency in Turkey and Middle East. BD has been shown to be associated with genotoxicity as patients with the disease have demonstrated high rates of <span class="hlt">sister</span> chromatid exchange (SCE) and oxidative DNA damage. In this study, we examined the effect of vitamin E, which is known for its strong antioxidant activity, on the rate of SCE in cultured lymphocytes obtained from BD patients. In addition, the susceptibility of patient lymphocytes to the mutagenic agent mitomycin C (MMC) was also investigated. The results showed significant elevation in the rate of SCE in lymphocytes obtained from patients compared to those from <span class="hlt">healthy</span> subjects (P < 0.01). Treatment with vitamin E normalized the elevated rate of SCE to a comparable level observed in the control group (P < 0.01). Finally, treatment of cultures with MMC significantly increased the rate of SCE in the lymphocytes of both patients and controls (P < 0.001). The magnitude of change in the rate of SCE induced by MMC was equivalent in both groups. This result suggests similar sensitivity of BD lymphocytes and control ones to MMC. In conclusion, genotoxicity associated with BD can be overcome by treatment with vitamin E. Lymphocytes of BD have normal sensitivity to the mutagenic agent MMC. PMID:24852698</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=gravitational+AND+theory&pg=3&id=EJ202034"><span id="translatedtitle"><span class="hlt">Twin</span> Paradox: A Complete Treatment from the Point of View of Each <span class="hlt">Twin</span>.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Perrin, Robert</p> <p>1979-01-01</p> <p>Modifies and expands on the treatment of the <span class="hlt">twin</span> paradox by solving the gravitational field equations and geodesic equations of motion in the traveling <span class="hlt">twin</span>'s reference frame, thus determining the time elapsed on the Earth during the periods of acceleration. (Author/GA)</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/42365156"><span id="translatedtitle"><span class="hlt">Twin</span> boundaries and incoherent steps on <span class="hlt">twin</span> boundaries in body-centered-cubic metals</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>M. Yamaguchi; V. Vitek</p> <p>1976-01-01</p> <p>The atomistic structure of coherent {112} <span class="hlt">twin</span> boundaries and of incoherent steps on these boundaries is studied by computer simulation. The interatomic interaction is described by four different central force laws. It is found that for strong binding the boundary for which the first layer of the <span class="hlt">twin</span> is sheared by 1\\/12?111? is preferred to the boundary where all the</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/7688857"><span id="translatedtitle"><span class="hlt">Sister</span>-chromatid exchanges and cell-cycle kinetics in the lymphocytes of workers occupationally exposed to a chemical mixture in the tyre industry.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Sasiadek, M</p> <p>1993-08-01</p> <p>Cytogenetic studies of clinically <span class="hlt">healthy</span> workers employed in the rubber industry showed an increase in chromosome aberrations (CAs), <span class="hlt">sister</span>-chromatid exchanges (SCEs) and a decrease in proliferation indices (PIs). The aim of the present study was to establish, using the SCE and PI tests, genotoxic effects of hazardous chemicals in the rubber industry. An increase in mean SCEs in the lymphocytes of vulcanizers as compared to controls was observed. Since the PI in the exposed group was insignificantly decreased as compared to the controls, it could be concluded that the SCE test is the most sensitive cytogenetic test for the detection of a genotoxic effect of chemicals in the rubber industry. There was no evidence in the present study that the genotoxic effect of chemicals in the rubber industry was enhanced by cigarette smoking. PMID:7688857</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/1990PCM....17..320S"><span id="translatedtitle">Generation of Brazil and Dauphiné <span class="hlt">twins</span> in synthetic amethysts</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Sunagawa, Ichiro; Taijing, Lu; Balitsky, V. S.</p> <p>1990-09-01</p> <p>The generation of both Brazil and Dauphiné <span class="hlt">twins</span> is triggered by strain fields associated with the fluctuation of growth parameters when solid inclusions of goethite (?) are precipitated on to a growth surface. Brazil <span class="hlt">twins</span> are generated either directly from solid inclusions of smaller size or dislocations originating therefrom, whereas Dauphiné <span class="hlt">twins</span> are generated only directly from solid inclusions of larger size. Precipitation of polymerized embryonic particles of SiO2 on the surface of solid inclusions is considered to be responsible for the generation of Brazil <span class="hlt">twins</span>, whereas for Dauphiné <span class="hlt">twins</span> it is necessary that embryonic particles precipitated in <span class="hlt">twin</span> orientation on the surface of solid inclusions grow beyond a critical size.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/20186807"><span id="translatedtitle">Monozygotic <span class="hlt">twins</span> discordant for phacomatosis pigmentovascularis: evidence for the concept of <span class="hlt">twin</span> spotting.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Moutray, Tanya; Napier, Maria; Shafiq, Ayad; Fryer, Alan; Rankin, Simon; Willoughby, Colin E</p> <p>2010-03-01</p> <p>The term phacomatosis pigmentovascularis (PPV) refers to the occurrence of vascular nevi with melanocytic or epidermal nevi. We report on monozygotic <span class="hlt">twins</span> (MZTs) discordant for phacomatosis cesioflammea (PPV type II) providing evidence for the mechanism of <span class="hlt">twin</span> spotting in the development of PPV. The affected <span class="hlt">twin</span> had a nevus flammeus on the right arm and the right maxilla, and a pigmented area on the trunk in keeping with a persistent, aberrant Mongolian spot. The affected <span class="hlt">twin</span> had bilateral ocular melanocytosis with abnormal scleral pigmentation, iris mamillations, increased pigmentation of the trabecular meshwork, and increased fundal pigmentation and secondary glaucoma. DNA testing confirmed monozygosity. This case of MZTs discordant for PPV supports the hypothesis that PPV results from mosaicism due to a post-zygotic mutational event and the concept of <span class="hlt">twin</span> spotting. PMID:20186807</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2279116"><span id="translatedtitle">Single mitochondrial gene barcodes reliably identify <span class="hlt">sister</span>-species in diverse clades of birds</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p></p> <p>2008-01-01</p> <p>Background DNA barcoding of life using a standardized COI sequence was proposed as a species identification system, and as a method for detecting putative new species. Previous tests in birds showed that individuals can be correctly assigned to species in ~94% of the cases and suggested a threshold of 10× mean intraspecific difference to detect potential new species. However, these tests were criticized because they were based on a single maternally inherited gene rather than multiple nuclear genes, did not compare phylogenetically identified <span class="hlt">sister</span> species, and thus likely overestimated the efficacy of DNA barcodes in identifying species. Results To test the efficacy of DNA barcodes we compared ~650 bp of COI in 60 <span class="hlt">sister</span>-species pairs identified in multigene phylogenies from 10 orders of birds. In all pairs, individuals of each species were monophyletic in a neighbor-joining (NJ) tree, and each species possessed fixed mutational differences distinguishing them from their <span class="hlt">sister</span> species. Consequently, individuals were correctly assigned to species using a statistical coalescent framework. A coalescent test of taxonomic distinctiveness based on chance occurrence of reciprocal monophyly in two lineages was verified in known <span class="hlt">sister</span> species, and used to identify recently separated lineages that represent putative species. This approach avoids the use of a universal distance cutoff which is invalidated by variation in times to common ancestry of <span class="hlt">sister</span> species and in rates of evolution. Conclusion Closely related <span class="hlt">sister</span> species of birds can be identified reliably by barcodes of fixed diagnostic substitutions in COI sequences, verifying coalescent-based statistical tests of reciprocal monophyly for taxonomic distinctiveness. Contrary to recent criticisms, a single DNA barcode is a rapid way to discover monophyletic lineages within a metapopulation that might represent undiscovered cryptic species, as envisaged in the unified species concept. This identifies a smaller set of lineages that can also be tested independently for species status with multiple nuclear gene approaches and other phenotypic characters. PMID:18328107</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://arxiv.org/pdf/0811.3562v1"><span id="translatedtitle">Langevin's `<span class="hlt">Twin</span> Paradox' paper revisited</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>J. H. Field</p> <p>2008-11-21</p> <p>An in-depth and mathematically-detailed analysis of Langevin's popular 1911 article on the special theory of relativity is presented. For the reader's convenience, English translations of large parts of the original French text are given. The self-contradictory nature of many of Langevin's assertions is pointed out. Of special interest is the analysis of the exchange of light signals between the travelling and stay-at-home <span class="hlt">twins</span> in Langevin's thought experiment, in which antinomies are found in the conventional relativistic treatment. Their resolution shows that the physical basis of the differential aging effect in the experiment is not `length contraction', as in the conventional interpretation, but instead the application of the correct relative velocity transformation formula. The spurious nature of the correlated `length contraction' and `relativity of simultaneity' effects of conventional special relativity is also demonstrated. In consequence, an argument given, claiming to demonstrate that an upper limit of $c$ on the speed of any physical signal is required by causality, is invalid. Its conclusion is also in contradiction with astronomical observations and the results of a recent experiment.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/1994mti..rept.....E"><span id="translatedtitle"><span class="hlt">Twin</span> disc gear tooth simulator</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Eusepi, Martin W.; Dill, James F.</p> <p>1994-05-01</p> <p>This report describes the results of an effort to develop a disc on disc test rig for evaluating lubricant load capacity. The goal of the program has been to develop a reliable disc on disc (or <span class="hlt">Twin</span> Disc) test rig capable of providing more reliable and lower cost evaluation of lubricant load capacity than the Ryder gear test which is currently used. Disc rigs have been evaluated for this application in the past, but have failed to provide scuffing results which are comparable to those found in gear tests. The unique feature of the rig designed and evaluated under this program is a drive system design which varies the disc to disc sliding and rolling speeds in a fixed manner to simulate the combined rolling and sliding motion found in a gear tooth contact. Other features include a drive system design which insures that the same points on each disc always contact each other as they rotate, and material selection and heating system design for operation with experimental lubricants at temperatures up to 700 deg F.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASA-TRS&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20120002933&hterms=Twins&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D20%26Ntt%3DTwins"><span id="translatedtitle">Aeroacoustic Experiments with <span class="hlt">Twin</span> Jets</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Bozak, Richard F.; Henderson, Brenda S.</p> <p>2012-01-01</p> <p>While the noise produced by a single jet is azimuthally symmetric, multiple jets produce azimuthally varying far-field noise. The ability of one jet to shield another reduces the noise radiated in the plane of the jets, while often increasing the noise radiated out of the plane containing the jets. The present study investigates the shielding potential of <span class="hlt">twin</span> jet configurations over subsonic and over-expanded supersonic jet conditions with simulated forward flight. The experiments were conducted with 2 in. throat diameter nozzles at four jet spacings from 2.6d to 5.5d in center-to-center distance, where d is the nozzle throat diameter. The current study found a maximum of 3 dB reduction in overall sound pressure level relative to two incoherent jets in the peak jet noise direction in the plane containing the jets. However, an increase of 3 dB was found perpendicular to the plane containing the jets. In the sideline direction, shielding is observed for all jet spacings in this study.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2010-12-17/pdf/2010-31745.pdf"><span id="translatedtitle">75 FR 78979 - Application to Export Electric Energy; <span class="hlt">Twin</span> Rivers Paper Company Inc.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2010-12-17</p> <p>...to Export Electric Energy; <span class="hlt">Twin</span> Rivers Paper Company Inc. AGENCY: Office of Electricity...SUMMARY: <span class="hlt">Twin</span> Rivers Paper Company Inc. (<span class="hlt">Twin</span> Rivers) has applied...69-kV, connect the integrated pulp and paper operations owned by <span class="hlt">Twin</span> Rivers and...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/21350292"><span id="translatedtitle">Synergistic convergence and split pons in horizontal gaze palsy and progressive scoliosis in two <span class="hlt">sisters</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Jain, Nitin R; Jethani, Jitendra; Narendran, Kalpana; Kanth, L</p> <p>2011-01-01</p> <p>Synergistic convergence is an ocular motor anomaly where on attempted abduction or on attempted horizontal gaze, both the eyes converge. It has been related to peripheral causes such as congenital fibrosis of extraocular muscles (CFEOM), congenital cranial dysinnervation syndrome, ocular misinnervation or rarely central causes like horizontal gaze palsy with progressive scoliosis, brain stem dysplasia. We hereby report the occurrence of synergistic convergence in two <span class="hlt">sisters</span>. Both of them also had kyphoscoliosis. Magnetic resonance imaging (MRI) brain and spine in both the patients showed signs of brain stem dysplasia (split pons sign) differing in degree (younger <span class="hlt">sister</span> had more marked changes). PMID:21350292</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=492911"><span id="translatedtitle">Relapsing neurological disorder associated with rubella virus infection in two <span class="hlt">sisters</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Callaghan, N; Feely, M; Walsh, B</p> <p>1977-01-01</p> <p>A disseminated relapsing neurological disorder presented simultaneously in two <span class="hlt">sisters</span>. Encephalitic features were present in one case. The illness was associated with a significant increase in rubella specific IgM in both <span class="hlt">sisters</span>. Despite the absence of a rubella rash, this increase would be compatible with a recent infection by the rubella virus as a basis for the illness, and the persistent elevation, with active antigenic stimulation. It is suggested that both patients might represent the clinical manifestations of perivenous demyelination caused by the rubella virus, which, in view of the relapsing nature of the illness, has progressed to plaque formation. PMID:599358</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/24846387"><span id="translatedtitle">Metabolome and fecal microbiota in monozygotic <span class="hlt">twin</span> pairs discordant for weight: a Big Mac challenge.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Bondia-Pons, Isabel; Maukonen, Johanna; Mattila, Ismo; Rissanen, Aila; Saarela, Maria; Kaprio, Jaakko; Hakkarainen, Antti; Lundbom, Jesper; Lundbom, Nina; Hyötyläinen, Tuulia; Pietiläinen, Kirsi H; Oreši?, Matej</p> <p>2014-09-01</p> <p>Postprandial responses to food are complex, involving both genetic and environmental factors. We studied postprandial responses to a Big Mac meal challenge in monozygotic co-<span class="hlt">twins</span> highly discordant for body weight. This unique design allows assessment of the contribution of obesity, independent of genetic liability. Comprehensive metabolic profiling using 3 analytical platforms was applied to fasting and postprandial serum samples from 16 <span class="hlt">healthy</span> monozygotic <span class="hlt">twin</span> pairs discordant for weight (body mass index difference >3 kg/m(2)). Nine concordant monozygotic pairs were examined as control pairs. Fecal samples were analyzed to assess diversity of the major bacterial groups by using 5 different validated bacterial group specific denaturing gradient gel electrophoresis methods. No differences in fecal bacterial diversity were detected when comparing co-<span class="hlt">twins</span> discordant for weight (ANOVA, P<0.05). We found that within-pair similarity is a dominant factor in the metabolic postprandial response, independent of acquired obesity. Branched chain amino acids were increased in heavier as compared with leaner co-<span class="hlt">twins</span> in the fasting state, but their levels converged postprandially (paired t tests, FDR q<0.05). We also found that specific bacterial groups were associated with postprandial changes of specific metabolites. Our findings underline important roles of genetic and early life factors in the regulation of postprandial metabolite levels.-Bondia-Pons, I., Maukonen, J., Mattila, I., Rissanen, A., Saarela, M., Kaprio, J., Hakkarainen, A., Lundbom, J., Lundbom, N., Hyötyläinen, T., Pietiläinen, K. H., Oreši?, M. Metabolome and fecal microbiota in monozygotic <span class="hlt">twin</span> pairs discordant for weight: a Big Mac challenge. PMID:24846387</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-STC&redirectUrl=http://www.osti.gov/scitech/servlets/purl/977929"><span id="translatedtitle">Automated <span class="hlt">twin</span> identification technique for use with electron backscatter diffraction.</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Henrie, B. L. (Benjamin Lyman); Mason, T. A. (Thomas A.); Bingert, J. F. (John F.)</p> <p>2004-01-01</p> <p>Historically, <span class="hlt">twinning</span> information has been obtained by optical microscopy, TEM, and neutron diffraction. Recent research has shown that automated electron backscatter diffraction (EBSD) can be used to extract reliable <span class="hlt">twinning</span> statistics. An automated <span class="hlt">twin</span> identification technique for use with EBSD has facilitated a greater understanding of deformation <span class="hlt">twinning</span> in materials. The key features of this automated framework are the use of the crystallographic definition of <span class="hlt">twin</span> relationships, the inclination of the common K, plane at a <span class="hlt">twin</span> boundary, and the correct identification of the parent orientation in a parent/<span class="hlt">twin</span> pair. The complex nature of the parent/<span class="hlt">twin</span> interactions required the use of a voting scheme to correctly identify parent orientations. In those few cases were the voting scheme was unable to determine parent orientation (< 2 pct) the algorithm allows for manual selection. <span class="hlt">Twin</span> area fractions are categorized by operative <span class="hlt">twin</span> systems along with secondary and tertiary <span class="hlt">twinning</span>. These statistics are reported for {alpha}-zirconium and 316L stainless steel. These improved <span class="hlt">twin</span> statistics can help quantify deformation processes as well as provide validation of plasticity models for materials that exhibit deformation <span class="hlt">twinning</span>.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.usfca.edu/fac-staff/dever/StayHealthy.pdf"><span id="translatedtitle">Staying <span class="hlt">Healthy</span> I. What is <span class="hlt">healthy</span>?</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Dever, Jennifer A.</p> <p></p> <p>in saturated fats, trans fats, cholesterol, salt (sodium), and added sugars. C. How of fat = 9 calories Obesity related health problems: B. Key to a <span class="hlt">healthy</span> diet: Ø fruits, vegetables, whole grains, and fat-free or low-fat milk and milk products</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASA-TRS&redirectUrl=http://hdl.handle.net/2060/19910019855"><span id="translatedtitle">NAE <span class="hlt">Twin</span> Otter operations in FIFE 1989</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Macpherson, J. I.</p> <p>1990-01-01</p> <p>During the summer of 1989, the National Aeronautical Establishment (Canada) <span class="hlt">Twin</span> Otter Atmospheric Research Aircraft was flow in support of the NASA sponsored First ISLSCP (International Satellite Land Surface Climatology Project) Field Experiment called FIFE-89. Airborne measurements of the fluxes of heat, momentum, water vapor and carbon dioxide were made during 16 flow-altitude flights over the FIFE project area in central Kansas. The <span class="hlt">Twin</span> Otter operations in FIFE are documented and details are included on the instrumentation, software, flight procedures, atmospheric conditions and analysis methods. Comparisons of <span class="hlt">Twin</span> Otter measured fluxes are made with those determined at several surface sites and with those made by other instrumented aircraft in the FIFE-87 measurements. Airborne flux measurements are related to run length, altitude, and environmental parameters such as vegetation type, temperature, and wind speed. One night flight was run in an attempt to measure the respiration component of the CO2 flux. The use of aircraft was studied for regional observations of fluxes and to relate these to satellite radiance measurements. Run average data are presented for all 285 flux runs flown by the <span class="hlt">Twin</span> Otter in FIFE-89. This should serve as as a working reference for scientists utilizing <span class="hlt">Twin</span> Otter data either directly of through the FIFE data archive.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://www.simplestepsdental.com/SS/ihtSSPrint/r.WSIHW000/st.31845/t.32503/pr.3/c.307498.html"><span id="translatedtitle">Mouth-<span class="hlt">Healthy</span> Eating</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>Mouth-<span class="hlt">Healthy</span> Eating Immediate Effects of Food Long-Term Effects What To Eat If you want to prevent cavities, how ... oral health is the first step toward mouth-<span class="hlt">healthy</span> eating. Immediate Effects of Food Changes begin in your ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=video+AND+surveillance&pg=2&id=EJ1059804"><span id="translatedtitle">Active and <span class="hlt">Healthy</span> Schools</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Ball, Stephen; Kovarik, Jessica; Leidy, Heather</p> <p>2015-01-01</p> <p>The Active and <span class="hlt">Healthy</span> School Program (AHS) can be used to alter the culture and environment of a school to help children make healthier choices. The purpose of this study was to determine the effectiveness of AHS to increase physical activity while decreasing total screen time, increase <span class="hlt">healthy</span> food choices, and improve knowledge about physical…</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_15");'>15</a></li> <li><a href="#" onclick='return showDiv("page_16");'>16</a></li> <li class="active"><span>17</span></li> <li><a href="#" onclick='return showDiv("page_18");'>18</a></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_17 --> <div id="page_18" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_16");'>16</a></li> <li><a href="#" onclick='return showDiv("page_17");'>17</a></li> <li class="active"><span>18</span></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="341"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://arxiv.org/pdf/0807.0092v1"><span id="translatedtitle">Solar <span class="hlt">twins</span> in M67</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>L. Pasquini; K. Biazzo; P. Bonifacio; S. Randich; L. Bedin</p> <p>2008-07-01</p> <p>The discovery of true solar analogues is fundamental for a better understanding of the Sun and of the solar system. The open cluster M67 offers a unique opportunity to search for solar analogues because its chemical composition and age are very similar to those of the Sun. We analyze FLAMES spectra of a large number of M67 main sequence stars to identify solar analogues in this cluster.We first determine cluster members which are likely not binaries, by combining proper motions and radial velocity measurements. We concentrate our analysis on the determination of stellar effective temperature, using analyses of line-depth ratios and H$\\alpha$ wings, making a direct comparison with the solar spectrum obtained with the same instrument. We also compute the lithium abundance for all the stars.Ten stars have both the temperature derived by line-depth ratios and H$\\alpha$ wings within 100 K from the Sun. From these stars we derive, assuming a cluster reddening $E(B-V)=0.041$, the solar colour $(B-V)_\\odot=0.649\\pm0.016$ and a cluster distance modulus of 9.63. Five stars are most similar (within 60 K) to the Sun and candidates to be true solar <span class="hlt">twins</span>. These stars have also a low Li content, comparable to the photospheric abundance of the Sun, likely indicating a similar mixing evolution. We find several candidates for the best solar analogues ever. These stars are amenable to further spectroscopic investigations and planet search. The solar colours are determined with rather high accuracy with an independent method, as well as the cluster distance modulus.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-HHH&redirectUrl=http://www.loc.gov/pictures/collection/hh/item/co0294.photos.021517p/"><span id="translatedtitle">13. <span class="hlt">TWIN</span> ROCK DITCH AND PIPELINE DITCH HEADING PLAN, ...</span></a></p> <p><a target="_blank" href="http://www.loc.gov/pictures/collection/hh/">Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey</a></p> <p></p> <p></p> <p>13. <span class="hlt">TWIN</span> ROCK DITCH AND PIPELINE -- DITCH HEADING PLAN, ELEVATION, GABION COURSING & DETAILS - <span class="hlt">Twin</span> Rock Irrigation Ditch, West bank of Animas River, East of U.S. Highway 550, Bondad, La Plata County, CO</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/11684762"><span id="translatedtitle">[Human clone or a delayed <span class="hlt">twin</span>?].</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Szybalski, W</p> <p>2001-01-01</p> <p>Cloning is a natural mode of asexual reproduction for many organisms, which results in nearly identical copies of cells or organisms. In animals, including humans, identical <span class="hlt">twins</span> are an example of natural cloning. In the case of sheep, scientists succeeded to produce the "delayed" identical <span class="hlt">twin</span>. Dolly, of a mature animal by a rather complex and inefficient procedure. However, if this procedure is perfected, it will be useful to clone beloved pets and important laboratory animals. It will be much less suited for making (cloning) "delayed <span class="hlt">twin</span>" of mature persons because of high costs together with present experimental uncertainties. The only required regulation for human cloning is that somebody must be legally, including financially, responsible for the results of such novel reproductive technique. PMID:11684762</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-STC&redirectUrl=http://www.osti.gov/scitech/biblio/5748129"><span id="translatedtitle">Thoracoomphalopagus conjoined <span class="hlt">twins</span>: preoperative evaluation by scintigraphy</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Patel, B. (Univ. of Mississippi Medical Center, Jackson); Ho, J.; Sherry, M.; Ryan, A.</p> <p>1983-06-01</p> <p>Preoperative evaluation of intrathoracic and intraabdominal organs is very important before surgical separation of thoracoomphalopagus conjoined <span class="hlt">twins</span>. Hepatic fusion is one of the major obstacles to surgical separation. We evaluated such a case and found noninvasive scintigraphic procedures to be of value. Preoperative evaluation of thoracoomphalopagus conjoined <span class="hlt">twins</span> was performed after sequential intravenous injection of technetium-99m P-iso-propylacetanilidoiminodiacetic acid (/sup 99m/Tc-PIPIDA) in each of the <span class="hlt">twins</span> on the first day and technetium-99m sulfur colloid (/sup 99m/Tc sulfur colloid) on the second day. These procedures provided useful information concerning internal organs, especially the spleens and livers, and in particular the status of cross-circulation between the livers.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/42361830"><span id="translatedtitle">The interfacial energy of coherent <span class="hlt">twin</span> boundaries in copper</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>M. C. Inman; A. R. Khan</p> <p>1961-01-01</p> <p>In 1951, Fullman determined the interfacial energy of coherent <span class="hlt">twin</span> boundaries in copper annealed at 950°c, by optical examination of the equilibrium dihedral angles developed at the intersection of surface traces of <span class="hlt">twin</span> and grain boundary planes. The value 0·045 was obtained for the ratio ?t\\/?G of the <span class="hlt">twin</span> and grain boundary energies. From similar observations of thermally etched <span class="hlt">twin</span></p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://knockout.cwru.edu/publications/Mann.pdf"><span id="translatedtitle">Defective <span class="hlt">sister</span>-chromatid cohesion, aneuploidy and cancer predisposition in a mouse model of</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p></p> <p></p> <p>features of all three disorders, but the nature of the instability and tumor profiles vary amongDefective <span class="hlt">sister</span>-chromatid cohesion, aneuploidy and cancer predisposition in a mouse model of type, Cleveland, OH 44106, USA, 2 Case Comprehensive Cancer Center, University Hospitals of Cleveland, Cleveland</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/14806139"><span id="translatedtitle">Cytological detection of mutagen-carcinogen exposure by <span class="hlt">sister</span> chromatid exchange</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>P. Perry; H. J. Evans</p> <p>1975-01-01</p> <p>A staining technique that detects <span class="hlt">sister</span> chromatid exchanges (SCEs) has been used to examine the response of chromosomes in cultured Chinese hamster cells to a wide variety of mutagens-carcinogens. The test gives a very sensitive and rapid method for detecting chromosome mutagenicity of chemical agents and provides a powerful new method for detecting environmental mutagens.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=CFR&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/CFR-2010-title20-vol2/pdf/CFR-2010-title20-vol2-sec410-340.pdf"><span id="translatedtitle">20 CFR 410.340 - Determination of relationship; parent, brother, or <span class="hlt">sister</span>.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2010&page.go=Go">Code of Federal Regulations, 2010 CFR</a></p> <p></p> <p>2010-04-01</p> <p>...TITLE IV-BLACK LUNG BENEFITS (1969- ) Relationship and Dependency § 410.340 Determination of relationship; parent, brother...considered to be the parent, brother, or <span class="hlt">sister</span> of a miner if the courts of the State in which such miner was domiciled...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=4th+AND+grade+AND+science+AND+classes&pg=2&id=EJ587581"><span id="translatedtitle"><span class="hlt">Sisters</span> in Science: An Intergenerational Science Program for Elementary School Girls.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Hammrich, Penny L.</p> <p>1998-01-01</p> <p>Once a week, several classrooms of Philadelphia 4th-grade girls participate in <span class="hlt">Sisters</span> in Science, an afterschool, intergenerational program sponsored by Temple University that provides hand-on activities exploring urban environmental issues. A two-week summer camp program helps these students explore the rivers of Philadelphia. Participants…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=moral+AND+enhancement&id=EJ755531"><span id="translatedtitle">Meanings of Sisterhood and Developmental Disability: Narratives from White Nondisabled <span class="hlt">Sisters</span></span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>McGraw, Lori A.; Walker, Alexis J.</p> <p>2007-01-01</p> <p>Integrating thought from critical feminist and disability theorists via a strategic social constructionist perspective, the authors analyzed 10 in-depth qualitative interviews to begin to understand the dialogue between (a) how nondisabled <span class="hlt">sisters</span> understand themselves and their siblings with developmental disabilities and (b) wider systems of…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPA-EIMS&redirectUrl=http://oaspub.epa.gov/eims/eimsapi.dispdetail?deid=43487"><span id="translatedtitle">EVIDENCE FOR THE CHROMOSOMAL REPLICONS AS UNITS OF <span class="hlt">SISTER</span> CHROMATID EXCHANGES</span></a></p> <p><a target="_blank" href="http://oaspub.epa.gov/eims/query.page">EPA Science Inventory</a></p> <p></p> <p></p> <p>Current hypotheses of <span class="hlt">sister</span> chromatid exchange (SCE) formation postulate that sites of SCE induction are associated with active replicons or replicon clusters. We have applied the FCC-SCD technique to in vivo studies of mouse bone marrow cells that have been treated with cycloph...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://volcanoes.usgs.gov/insar/public_files/AGU_2004_Sisters/Three_Sisters_Fall_2004_AGU7.pdf"><span id="translatedtitle">An Ongoing Episode of Magmatic Inflation at the Three <span class="hlt">Sisters</span> Volcanic Center,</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p></p> <p></p> <p>YellowstoneYellowstoneYellowstoneYellowstoneYellowstoneYellowstoneYellowstoneYellowstoneYellowstone Three <span class="hlt">Sisters</span> volcanic center Located in central Oregon Cascades, with highest vent density and lava #12;Radar interferometry reveals ~14 cm of uplift from 1997-1998 to 2001 Wrapped Unwrapped #12 is not completely understood, but they suggest the involvement of a fluid (magma or gas) or "gooey" rock</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.springerlink.com/index/q17737805k635480.pdf"><span id="translatedtitle">Effect of incubation temperature on the frequency of <span class="hlt">sister</span> chromatid exchanges in Bloom's syndrome lymphocytes</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>M. J. Lyttleton; F. Giannelli</p> <p>1981-01-01</p> <p>The effect of incubation temperature on the frequency of <span class="hlt">sister</span> chromatid exchange (SCE) has been studied in blood cultures from three Bloom's syndrome (BS) patients, three controls, and three BS heterozygotes. All cell types show slight increases of SCE at 39°C while at 35°C and 32°C, SCE is reduced considerably in BS and slightly increased in normal cells. Prolonging lymphocyte</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=Incest&id=EJ1011495"><span id="translatedtitle">Brother-<span class="hlt">Sister</span> Incest: Data from Anonymous Computer-Assisted Self Interviews</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Stroebel, Sandra S.; O'Keefe, Stephen L.; Beard, Keith W.; Kuo, Shih-Ya; Swindell, Samuel; Stroupe, Walter</p> <p>2013-01-01</p> <p>Retrospective data were entered anonymously by 1,521 adult women using computer-assisted self interview. Forty were classified as victims of brother-<span class="hlt">sister</span> incest, 19 were classified as victims of father-daughter incest, and 232 were classified as victims of sexual abuse by an adult other than their father before reaching 18 years of age. The…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/36515981"><span id="translatedtitle">The Role of Brothers and <span class="hlt">Sisters</span> in the Gender Development of Preschool Children</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>John Rust; Susan Golombok; Melissa Hines; Katie Johnston; Jean Golding</p> <p>2000-01-01</p> <p>The study examined whether the sex of older siblings influences the gender role development of younger brothers and <span class="hlt">sisters</span> of age 3 years. Data on the Pre-School Activities Inventory, a measure of gender role behavior that discriminates within as well as between the sexes, were obtained in a general population study for 527 girls and 582 boys with an older</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/49195677"><span id="translatedtitle">Platelet [ 3H] paroxetine binding in female patients with borderline personality disorder and their <span class="hlt">sisters</span></span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Joel Paris; Lise Laporte; Jennifer Russell; NMK Ng Ying Kin; Herta Guttman</p> <p>2011-01-01</p> <p>Paroxetine binding could be a vulnerability marker for traits associated with borderline personality disorder (BPD). To study this relationship, we examined [3H] paroxetine binding in female patients with BPD and their <span class="hlt">sisters</span>. The sample consisted of 54 sibling pairs in which a proband met criteria for BPD. All subjects were given the Diagnostic Interview for Borderlines, revised (DIB-R), the Diagnostic</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/28020127"><span id="translatedtitle">Caesarean section conducted under subarachnoid block in two <span class="hlt">sisters</span> with spinal muscular atrophy</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>S. J. Harris; K. Moaz</p> <p>2002-01-01</p> <p>Spinal muscular atrophy is a rare chronic neurological condition characterised by degeneration of the anterior horn cell. Experience with the anaesthetic management of the pregnant patient with this condition is limited. We report the clinical details of two wheelchair-bound <span class="hlt">sisters</span>, who underwent elective caesarean section within a few weeks of one another. Both patients were safely managed with subarachnoid anaesthesia</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://files.eric.ed.gov/fulltext/ED514909.pdf"><span id="translatedtitle">Serving, Learning and Mentoring through the Big Brothers Big <span class="hlt">Sisters</span> Program</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Sivukamaran, Thillainatarajan; Holland, Glenda; Clark, Leonard J.</p> <p>2010-01-01</p> <p>This study describes the collaborative partnership between a Big Brothers Big <span class="hlt">Sisters</span> organization, an elementary school and the College of Education at a public university. The partnership utilized a mentoring system consisting of elementary students, college students, elementary teachers and university faculty. Benefits of the various…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.hedgeslab.org/pubs/28.pdf"><span id="translatedtitle">Letter to the Editor Pancreatic Polypeptide and the <span class="hlt">Sister</span> Group of Birds 1</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Hedges, Blair</p> <p></p> <p>/91/0806'()()II$02.00 888 #12;bullfrog human cow pig rat mouse dog cat sheep guineapig chicken ostrich goose of birds, mammals, and crocodilians (Hedges et al. 1990). The surprising result was that three genes (beta hemoglobin, myoglobin, and 18S rRNA) unambiguously identify mammals as the <span class="hlt">sister</span> group ofbirds, whereas only</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=new&pg=3&id=EJ1048143"><span id="translatedtitle">They Came with a Purpose: Educational Journeys of Nineteenth-Century Irish Dominican <span class="hlt">Sister</span> Teachers</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Collins, Jenny</p> <p>2015-01-01</p> <p>Irish Catholic teaching <span class="hlt">sisters</span> were major actors in the development of education systems in New World countries such as the United States, Canada, South Africa, Australia and New Zealand. Immigrants themselves, they faced a number of key challenges as they sought to adapt Old World cultural and educational ideas to the education of the immigrant…</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_16");'>16</a></li> <li><a href="#" onclick='return showDiv("page_17");'>17</a></li> <li class="active"><span>18</span></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_18 --> <div id="page_19" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_17");'>17</a></li> <li><a href="#" onclick='return showDiv("page_18");'>18</a></li> <li class="active"><span>19</span></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="361"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=chess&pg=3&id=EJ939604"><span id="translatedtitle">Does High-Level Intellectual Performance Depend on Practice Alone? Debunking the Polgar <span class="hlt">Sisters</span> Case</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Howard, Robert W.</p> <p>2011-01-01</p> <p>The famous Polgar <span class="hlt">sisters</span> started chess very young, undertook extensive study, and two became grandmasters. This case often is cited as decisive evidence that practice alone is key in development of expertise, that innate talent is unimportant or non-existent, and that almost anyone can become a grandmaster. But on close examination these claims…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1050774"><span id="translatedtitle">Two <span class="hlt">sisters</span> with a syndrome of ocular, skeletal, and abdominal abnormalities (OSA syndrome).</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Mingarelli, R; Castriota Scanderbeg, A; Dallapiccola, B</p> <p>1996-01-01</p> <p>Two adult <span class="hlt">sisters</span> are described who had a unique association of facial, ocular, and skeletal defects, and abdominal muscle hypoplasia, indicating autosomal recessive inheritance. Many of these features overlap those previously found in other malformation syndromes. However, the constellation of defects observed in these patients appears to represent a previously unreported syndrome and autosomal recessive inheritance is likely. Images PMID:8933348</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=teenage&pg=7&id=EJ965819"><span id="translatedtitle">Youths' Caretaking of Their Adolescent <span class="hlt">Sisters</span>' Children: Its Costs and Benefits for Youths' Development</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>East, Patricia L.; Weisner, Thomas S.; Reyes, Barbara T.</p> <p>2006-01-01</p> <p>This study examined how time spent caring for a teenage <span class="hlt">sister</span>'s child and experiences in providing care related to youths' young adult outcomes. Latino and African American youths (N = 108) were studied during middle and late adolescence. Results indicated that youths who provided many hours of child care were more stressed and had lower school…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.math.rutgers.edu/~zeilberg/mamarim/mamarimDVI/celdick.dvi"><span id="translatedtitle">How <span class="hlt">Sister</span> Celine Fasenmyer and Dick Duffin Shaped my Mathematical Personali* Doron ZEILBERGER1</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Zeilberger, Doron</p> <p></p> <p>How <span class="hlt">Sister</span> Celine Fasenmyer and Dick Duffin Shaped my Mathematical Personali* *ty in common. Dick was re* *cognized as a leading applied mathematician, was a member of the National will prove her even greater. Dick Duffin's creative genius, while partly recognized, sure did not get</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.math.rutgers.edu/~zeilberg/mamarim/mamarimPS/celdick.ps"><span id="translatedtitle">How <span class="hlt">Sister</span> Celine Fasenmyer and Dick Dun Shaped my Mathematical Personality Doron ZEILBERGER 1</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Zeilberger, Doron</p> <p></p> <p>How <span class="hlt">Sister</span> Celine Fasenmyer and Dick DuÆn Shaped my Mathematical Personality Doron ZEILBERGER 1 Two.). Apart from their longevity, they seem to have nothing in common. Dick was recognized as a leading will prove her even greater. Dick DuÆn's creative genius, while partly recognized, sure did not get the full</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=Trajectory+AND+finding+AND+control&pg=5&id=ED503245"><span id="translatedtitle">Making a Difference in Schools: The Big Brothers Big <span class="hlt">Sisters</span> School-Based Mentoring Impact Study</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Herrera, Carla; Grossman, Jean Baldwin; Kauh, Tina J.; Feldman, Amy F.; McMaken, Jennifer</p> <p>2007-01-01</p> <p>School-based mentoring is one of the fastest growing forms of mentoring in the US today; yet, few studies have rigorously examined its impacts. This landmark random assignment impact study of Big Brothers Big <span class="hlt">Sisters</span> School-Based Mentoring is the first national study of this program model. It involves 10 agencies, 71 schools and 1,139 9- to…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4426464"><span id="translatedtitle">Error, signal, and the placement of Ctenophora <span class="hlt">sister</span> to all other animals</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Whelan, Nathan V.; Kocot, Kevin M.; Moroz, Leonid L.</p> <p>2015-01-01</p> <p>Elucidating relationships among early animal lineages has been difficult, and recent phylogenomic analyses place Ctenophora <span class="hlt">sister</span> to all other extant animals, contrary to the traditional view of Porifera as the earliest-branching animal lineage. To date, phylogenetic support for either ctenophores or sponges as <span class="hlt">sister</span> to other animals has been limited and inconsistent among studies. Lack of agreement among phylogenomic analyses using different data and methods obscures how complex traits, such as epithelia, neurons, and muscles evolved. A consensus view of animal evolution will not be accepted until datasets and methods converge on a single hypothesis of early metazoan relationships and putative sources of systematic error (e.g., long-branch attraction, compositional bias, poor model choice) are assessed. Here, we investigate possible causes of systematic error by expanding taxon sampling with eight novel transcriptomes, strictly enforcing orthology inference criteria, and progressively examining potential causes of systematic error while using both maximum-likelihood with robust data partitioning and Bayesian inference with a site-heterogeneous model. We identified ribosomal protein genes as possessing a conflicting signal compared with other genes, which caused some past studies to infer ctenophores and cnidarians as <span class="hlt">sister</span>. Importantly, biases resulting from elevated compositional heterogeneity or elevated substitution rates are ruled out. Placement of ctenophores as <span class="hlt">sister</span> to all other animals, and sponge monophyly, are strongly supported under multiple analyses, herein. PMID:25902535</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/39614927"><span id="translatedtitle">Induction of <span class="hlt">sister</span> chromatid exchanges by coal dust and tobacco snuff extracts in human peripheral lymphocytes</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>James D. Tucker; Tong-Man Ong</p> <p>1985-01-01</p> <p>The organic solvent extracts of sub-bituminous coal dust and tobacco snuff, both together and separately, were tested for the induction of <span class="hlt">sister</span> chromatid exchanges (SCEs) in human peripheral lymphocytes. The results indicate that these extracts induced SCEs, and that when tested together synergistically induced SCEs in two of three donors. Studies with the organic solvent extracts of all five ranks</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://cancerres.aacrjournals.org/cgi/reprint/45/6/2471.pdf"><span id="translatedtitle"><span class="hlt">Sister</span> Chromatid Exchange Induction in Human Lymphocytes Exposed to Benzene and Its Metabolites in Vitro1</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Gregory L. Erexson; James L. Wilmer; Andrew D. Kligerman</p> <p></p> <p>Previous in vivo studies have shown that low-dose benzene exposure (10 to 28 ppm for 4 to 6 h) in mice can induce <span class="hlt">sister</span> chromatid exchange (SCE) in peripheral blood B-lymphocytes and bone marrow as well as micronuclei in bone marrow poly chromatic erythrocytes. Because benzene is metabolized to a variety of intermediate compounds and two of these, catechol and</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=year+AND+9+AND+students&pg=4&id=EJ927867"><span id="translatedtitle">Mentoring in Schools: An Impact Study of Big Brothers Big <span class="hlt">Sisters</span> School-Based Mentoring</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Herrera, Carla; Grossman, Jean Baldwin; Kauh, Tina J.; McMaken, Jennifer</p> <p>2011-01-01</p> <p>This random assignment impact study of Big Brothers Big <span class="hlt">Sisters</span> School-Based Mentoring involved 1,139 9- to 16-year-old students in 10 cities nationwide. Youth were randomly assigned to either a treatment group (receiving mentoring) or a control group (receiving no mentoring) and were followed for 1.5 school years. At the end of the first school…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=CFR2012&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/CFR-2012-title40-vol17/pdf/CFR-2012-title40-vol17-sec79-65.pdf"><span id="translatedtitle">40 CFR 79.65 - In vivo <span class="hlt">sister</span> chromatid exchange assay.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2012&page.go=Go">Code of Federal Regulations, 2012 CFR</a></p> <p></p> <p>2012-07-01</p> <p>...of a chemical to enhance the exchange of DNA between two <span class="hlt">sister</span> chromatids of a duplicating...translocation and ligation of at least two DNA helices. (c) Test method —(1...considered not to induce rearrangements of DNA segments in this system. (iii)...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=CFR2013&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/CFR-2013-title40-vol17/pdf/CFR-2013-title40-vol17-sec79-65.pdf"><span id="translatedtitle">40 CFR 79.65 - In vivo <span class="hlt">sister</span> chromatid exchange assay.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2013&page.go=Go">Code of Federal Regulations, 2013 CFR</a></p> <p></p> <p>2013-07-01</p> <p>...of a chemical to enhance the exchange of DNA between two <span class="hlt">sister</span> chromatids of a duplicating...translocation and ligation of at least two DNA helices. (c) Test method —(1...considered not to induce rearrangements of DNA segments in this system. (iii)...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=CFR2014&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/CFR-2014-title40-vol17/pdf/CFR-2014-title40-vol17-sec79-65.pdf"><span id="translatedtitle">40 CFR 79.65 - In vivo <span class="hlt">sister</span> chromatid exchange assay.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2014&page.go=Go">Code of Federal Regulations, 2014 CFR</a></p> <p></p> <p>2014-07-01</p> <p>...of a chemical to enhance the exchange of DNA between two <span class="hlt">sister</span> chromatids of a duplicating...translocation and ligation of at least two DNA helices. (c) Test method —(1...considered not to induce rearrangements of DNA segments in this system. (iii)...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.springerlink.com/index/hhj4116l13l14t02.pdf"><span id="translatedtitle">Frequency and distribution of <span class="hlt">sister</span>-chromatid exchanges in a case of Fanconi's anemia</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>K. Sperling; R.-D. Wegner; H. Riehm; G. Obe</p> <p>1975-01-01</p> <p>In lymphocytes of a 7-year-old boy with Fanconi's anemia the frequencies and sites of <span class="hlt">sister</span>-chromatid exchanges (SCE) were studied with the BrdU-Giemsa method. The average frequency of SCE (8.8 per metaphase) and the inter-and intrachromosomal distribution of SCE was not significantly different from the controls.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://poppovresearchnetwork.org/Portals/1/documents/papers/FinalReportCost_Migration.pdf"><span id="translatedtitle">The Hidden Cost of Migration: Effect of Brother's Migration on <span class="hlt">Sister</span>'s Marriage Outcomes in Rural Bangladesh</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Ali Protik</p> <p></p> <p>This paper examines the effect of brother's migration on the marriage patterns of <span class="hlt">sisters</span> in a rural area of Bangladesh. It has been proposed that when sons are mi- grants, especially when accompanied by their spouses, parents become more willing to marry their daughters nearby to secure care support for their old-age. Such will- ingness arises because of a missing</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3444384"><span id="translatedtitle">High-functioning autism spectrum disorder and fragile X syndrome: report of two affected <span class="hlt">sisters</span></span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p></p> <p>2012-01-01</p> <p>Background Fragile X syndrome (FXS) is the most common inherited cause of intellectual disability (ID), as well as the most frequent monogenic cause of autism spectrum disorder (ASD). Men with FXS exhibit ID, often associated with autistics features, whereas women heterozygous for the full mutation are typically less severely affected; about half have a normal or borderline intelligence quotient (IQ). Previous findings have shown a strong association between ID and ASD in both men and women with FXS. We describe here the case of two <span class="hlt">sisters</span> with ASD and FXS but without ID. One of the <span class="hlt">sisters</span> presented with high-functioning autism, the other one with pervasive developmental disorder not otherwise specified and low normal IQ. Methods The methylation status of the mutated FMR1 alleles was examined by Southern blot and methylation-sensitive polymerase chain reaction. The X-chromosome inactivation was determined by analyzing the methylation status of the androgen receptor at Xq12. Results Both <span class="hlt">sisters</span> carried a full mutation in the FMR1 gene, with complete methylation and random X chromosome inactivation. We present the phenotype of the two <span class="hlt">sisters</span> and other family members. Conclusions These findings suggest that autistic behaviors and cognitive impairment can manifest as independent traits in FXS. Mutations in FMR1, known to cause syndromic autism, may also contribute to the etiology of high-functioning, non-syndromic ASD, particularly in women. Thus, screening for FXS in patients with ASD should not be limited to those with comorbid ID. PMID:22738402</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4066400"><span id="translatedtitle">Tension-dependent removal of pericentromeric shugoshin is an indicator of <span class="hlt">sister</span> chromosome biorientation</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Nerusheva, Olga O.; Galander, Stefan; Fernius, Josefin; Kelly, David; Marston, Adele L.</p> <p>2014-01-01</p> <p>During mitosis and meiosis, <span class="hlt">sister</span> chromatid cohesion resists the pulling forces of microtubules, enabling the generation of tension at kinetochores upon chromosome biorientation. How tension is read to signal the bioriented state remains unclear. Shugoshins form a pericentromeric platform that integrates multiple functions to ensure proper chromosome biorientation. Here we show that budding yeast shugoshin Sgo1 dissociates from the pericentromere reversibly in response to tension. The antagonistic activities of the kinetochore-associated Bub1 kinase and the Sgo1-bound phosphatase protein phosphatase 2A (PP2A)-Rts1 underlie a tension-dependent circuitry that enables Sgo1 removal upon <span class="hlt">sister</span> kinetochore biorientation. Sgo1 dissociation from the pericentromere triggers dissociation of condensin and Aurora B from the centromere, thereby stabilizing the bioriented state. Conversely, forcing <span class="hlt">sister</span> kinetochores to be under tension during meiosis I leads to premature Sgo1 removal and precocious loss of pericentromeric cohesion. Overall, we show that the pivotal role of shugoshin is to build a platform at the pericentromere that attracts activities that respond to the absence of tension between <span class="hlt">sister</span> kinetochores. Disassembly of this platform in response to intersister kinetochore tension signals the bioriented state. Therefore, tension sensing by shugoshin is a central mechanism by which the bioriented state is read. PMID:24939933</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=nitrogen&pg=5&id=EJ797780"><span id="translatedtitle">Three <span class="hlt">Sisters</span>: Lessons of Traditional Story Honored in Assessment and Accreditation</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Chenault, Venida S.</p> <p>2008-01-01</p> <p>The three <span class="hlt">sisters</span> story is shared across many tribes. It explains the practice of planting corn, beans, and squash together. The corn stalks provide support for the bean vines; the beans provide nitrogen for the corn; and the squash prevents weed growth between the mounds. Such stories explain not only the science of agricultural methods in tribal…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://files.eric.ed.gov/fulltext/ED421602.pdf"><span id="translatedtitle"><span class="hlt">Sisters</span> in Science: A Model Program. Spotlight on Student Success, No. 201.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Hammrich, Penny L.</p> <p></p> <p>In an effort to promote females' achievement in science, the <span class="hlt">Sisters</span> in Science program was developed. Conducted in 2 schools in Philadelphia (Pennsylvania), the program's inaugural year involved 60 fourth-grade girls in 2 elementary schools, an intergenerational corps of 20 women volunteers, 150 undergraduate elementary education students, and 8…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.plantcell.org/cgi/rapidpdf/tpc.106.041111v1.pdf"><span id="translatedtitle">Independent Ancient Polyploidy Events in the <span class="hlt">Sister</span> Families Brassicaceae and Cleomaceae</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>M. Eric Schranz; Thomas Mitchell-Olds</p> <p></p> <p>Recent studies have elucidated the ancient polyploid history of the Arabidopsis thaliana (Brassicaceae) genome. The studies concur that there was at least one polyploidy event occurring some 14.5 to 86 million years ago (Mya), possibly near the divergence of the Brassicaceae from its <span class="hlt">sister</span> family, Cleomaceae. Using a comparative genomics approach, we asked whether this polyploidy event was unique to</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_17");'>17</a></li> <li><a href="#" onclick='return showDiv("page_18");'>18</a></li> <li class="active"><span>19</span></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_19 --> <div id="page_20" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_18");'>18</a></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li class="active"><span>20</span></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="381"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/15279823"><span id="translatedtitle">Psychological adjustment to <span class="hlt">twins</span> after infertility.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Klock, Susan C</p> <p>2004-08-01</p> <p>The birth of <span class="hlt">twins</span> and other multiples is physically and emotionally stressful. The increase in the use of the assisted reproductive technologies has lead to an exponential increase in the rates of <span class="hlt">twins</span> and triplets in the US. Whereas the medical complications of <span class="hlt">twins</span> and other multiples has been well studied, the psychological and social implications of these events has not. Very little empirical research has been conducted to assess the differential impact of <span class="hlt">twins</span>, as compared to singletons, on maternal adjustment, postpartum depression and marital functioning. In addition, assessment of infant health, disposition and behavior and its relation to maternal adjustment is lacking. The birth of <span class="hlt">twins</span> after a period of infertility complicates the clinical picture and the impact of infertility on subsequent parental adjustment is only beginning to be understood. Although research suggests that infertile couples often desire multiples, the experience of parenting multiples after infertility has not been studied. Research on fertile couples indicate that: (i) approximately 10% of women develop postpartum depression and; (ii) marital adjustment declines after the birth of the first child. Because of the unique demands of parenting multiples, it is hypothesized that mothers of <span class="hlt">twins</span> who have a history of infertility would be at increased risk for depression and marital decline. Descriptive studies of these families support this view, although additional studies are needed to determine the degree and extent of the problem. Additionally, variables such as, prepregnancy adjustment, equitable division of child-care tasks and perceived social support should be studied to determine if they buffer against the expected effects. PMID:15279823</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/40292856"><span id="translatedtitle">Reversible–irreversible plasticity transition in <span class="hlt">twinned</span> copper nanopillars</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>J. A. Brown; N. M. Ghoniem</p> <p>2010-01-01</p> <p>Through computer simulations, we show that plasticity in <span class="hlt">twinned</span> copper nanopillars can be either reversible or irreversible depending on the applied stress state. Copper nanopillars, containing <span class="hlt">twinned</span> crystals, are subjected to both compression and tension, and the ratio of the resolved shear (?R) to the normal stress (?N), R, is adjusted through variation of the orientation of the <span class="hlt">twin</span> boundary</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/36756609"><span id="translatedtitle">Testing structural equation models for <span class="hlt">twin</span> data using LISREL</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>A. C. Heath; M. C. Neale; J. K. Hewitt; L. J. Eaves; D. W. Fulker</p> <p>1989-01-01</p> <p>Simple genetic models can be fitted to <span class="hlt">twin</span> data using software packages such as LISREL (Jöreskog and Sörbom, 1986a). After discussion of data preparation and routine checks on possible violation of assumptions of the <span class="hlt">twin</span> method, we illustrate univariate, bivariate, and multivariate genetic models which can be tested in cross-sectional <span class="hlt">twin</span> data using LISREL. These include models for cohort or</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/38455689"><span id="translatedtitle">A Study of Early Fetal Growth Patterns in <span class="hlt">Twin</span> Pairs</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>L. Iffy; A. Jakobovits; M. A. Lavenhar; R. Najem; L. Hopp</p> <p>1993-01-01</p> <p>The relationships of sitting heights and body weights of fetal <span class="hlt">twin</span> pairs were analyzed in comparison with established growth rate standards of singleton fetuses. The apparent rate of growth of individual <span class="hlt">twins</span> scattered around the average growth curve in the same manner as singletons. In contrast, members of 12 <span class="hlt">twin</span> pairs with <125 mm sitting heights, were closely similar in</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/18833952"><span id="translatedtitle"><span class="hlt">Twinning</span> in nanocrystalline Ni by severe plastic deformation</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>X Y Feng; Z Y Cheng; X Wu; T C Wang; Y S Hong</p> <p>2006-01-01</p> <p>Deformation <span class="hlt">twinning</span> is confirmed upon large plastic deformation in nanocrystalline (nc) Ni by transmission electron microscopy examinations. New and compelling evidence has been obtained for several <span class="hlt">twinning</span> mechanisms that operate in nc grains, with the grain boundary emission of partial dislocations determined as the most proficient. <span class="hlt">Twinning</span> in nc Ni may be interpreted in terms of molecular dynamics simulation based</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/39859109"><span id="translatedtitle"><span class="hlt">Twinning</span> in ferroelectric and ferroelastic ceramics: stress relief</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>G. Arlt</p> <p>1990-01-01</p> <p>The regular <span class="hlt">twinning</span> in ceramics and metals below the temperature of a ferroelastic or ferroelectric structural phase transition is a result of energy minimization. Here homogeneous elastic energy is reduced at the expense of <span class="hlt">twin</span> wall energy. The <span class="hlt">twin</span> density depends on the gram sizeg; under homogeneous stress the total elastic energy of a grain increases ?g3. Any kind of</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=Investigation+AND+twins&id=EJ754570"><span id="translatedtitle">Marital Conflict and Conduct Problems in Children of <span class="hlt">Twins</span></span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Harden, K. Paige; Turkheimer, Eric; Emery, Robert E.; D'Onofrio, Brian M.; Slutske, Wendy S.; Heath, Andrew C.; Martin, Nicholas G.</p> <p>2007-01-01</p> <p>The Children-of-<span class="hlt">Twins</span> design was used to test whether associations between marital conflict frequency and conduct problems can be replicated within the children of discordant <span class="hlt">twin</span> pairs. A sample of 2,051 children (age 14-39 years) of 1,045 <span class="hlt">twins</span> was used to estimate the genetic and environmental influences on marital conflict and determine…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/30551978"><span id="translatedtitle">Trisomy 13 in monozygotic <span class="hlt">twins</span> discordant for major congenital anomalies</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>N Naor; Y Amir; T Cohen; S Davidson</p> <p>1987-01-01</p> <p>The occurrence of trisomy 13 in <span class="hlt">twins</span> is very rare. We report a pair of genotypically identical <span class="hlt">twins</span> with trisomy 13 discordant for major anomalies. This case contributes to the already published data on the contribution of non-genetic factors to the aetiology of congenital malformations in monozygotic <span class="hlt">twins</span>.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://uwmlarsonlab.org/wp-content/uploads/37._Munn-Chernoff_etal_BehavGenet_2013.pdf"><span id="translatedtitle">ORIGINAL RESEARCH An Examination of the Representativeness Assumption for <span class="hlt">Twin</span></span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Larson, Christine L.</p> <p></p> <p>that results from <span class="hlt">twin</span> samples generalize to singletons. Keywords Disordered eating Á Depression Á Anxiety Á, depression, and anxiety among young adult female <span class="hlt">twins</span> versus singletons. Participants included 292 <span class="hlt">twins</span>, Eating Disorder Examination Questionnaire, Beck Depression Inventory, and State-Trait Anxiety Inventory</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=Twins&pg=6&id=EJ772196"><span id="translatedtitle">Sensitivity and Consistency of Maternal Writing Mediation to <span class="hlt">Twin</span> Kindergartners</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Aram, Dorit</p> <p>2007-01-01</p> <p>This study investigated whether mothers are responsive to their children's literacy level, thus employing different writing mediation styles with each <span class="hlt">twin</span> according to the child's level, or whether they possess a consistent style employed with both <span class="hlt">twins</span>. The sample included 28 sets of <span class="hlt">twin</span> kindergartners (56 children, M age = 68.89 months) and…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/31413954"><span id="translatedtitle">Dicephalus dipus dibrachius: An unusual case of conjoined <span class="hlt">twins</span></span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Jonathan I. Groner; Douglas W. Teske; Steven Teich</p> <p>1996-01-01</p> <p>Conjoined <span class="hlt">twinning</span> is a rare anomaly, occurring in one of every 50,000 births. Dicephalus dipus dibrachius is an extremely rare form of conjoined <span class="hlt">twinning</span> in which the infant has two arms, two legs, one trunk, but two heads. These infants are often stillborn or die shortly after birth. The authors describe a case of dicephalus <span class="hlt">twinning</span> with 11-day survival. A</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.drmichaellevin.org/Laterality1999.pdf"><span id="translatedtitle"><span class="hlt">Twinning</span> and Embryonic Left-Right Asymmetry Michael Levin</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Levin, Michael</p> <p></p> <p>-1144 Email: levin@whiz.med.harvard.edu Keywords: <span class="hlt">twins</span>, left-right, asymmetry, conjoined, chirality Running<span class="hlt">Twinning</span> and Embryonic Left-Right Asymmetry Michael Levin Bldg. C1, 5th floor Cell Biology dept title: <span class="hlt">Twinning</span> and LR Asymmetry Reprint from: Laterality, 1999, 4(3): 197-208 #12</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/17155475"><span id="translatedtitle">Semiconductor waveguide source of counterpropagating <span class="hlt">twin</span> photons.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Lanco, L; Ducci, S; Likforman, J-P; Marcadet, X; van Houwelingen, J A W; Zbinden, H; Leo, G; Berger, V</p> <p>2006-10-27</p> <p>We experimentally demonstrate an integrated semiconductor source of counterpropagating <span class="hlt">twin</span> photons in the telecom range. A pump beam impinging on top of an AlGaAs waveguide generates parametrically two counterpropagating, orthogonally polarized signal/idler guided modes. A 2 mm long waveguide emits at room temperature one average photon pair per pump pulse, with a spectral linewidth of 0.15 nm. The <span class="hlt">twin</span> character of the emitted photons is ascertained through a time-correlation measurement. This work opens a route towards new guided-wave semiconductor quantum devices. PMID:17155475</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://repository.tamu.edu/handle/1969.1/ETD-TAMU-2010-05-7724"><span id="translatedtitle">Nanoscale Growth <span class="hlt">Twins</span> in Sputtered Copper Films</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Anderoglu, Osman</p> <p>2011-08-08</p> <p>for 1 h isochronal anneals of 0.5 um copper sputtered on SiO2 .............................................. 20 10 (a) HRTEM image showing an edge-on Cu2O?Cu interface, where the orientation relationship of the Cu2O and Cu...), 400 ?C (e) and (f), 600 ?C (g) and (h), 800 ?C (i) and (j) ..?????? 78 38 (a) Evolution of <span class="hlt">twin</span> lamellar thickness and grain size as a function of annealing temperature. (b) <span class="hlt">Twin</span> evolution in vertical direction as a...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-STC&redirectUrl=http://www.osti.gov/scitech/servlets/purl/1028800"><span id="translatedtitle">Epicyclic <span class="hlt">Twin</span>-Helix Ionization Cooling Simulations</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Vasiliy Morozov, Yaroslav Derbenev, A. Afanaciev, R.P. Johnson</p> <p>2011-04-01</p> <p>Parametric-resonance Ionization Cooling (PIC) is proposed as the final 6D cooling stage of a highluminosity muon collider. For the implementation of PIC, we earlier developed an epicyclic <span class="hlt">twin</span>-helix channel with correlated behavior of the horizontal and vertical betatron motions and dispersion. We now insert absorber plates with short energy-recovering units located next to them at the appropriate locations in the <span class="hlt">twin</span>-helix channel. We first demonstrate conventional ionization cooling in such a system with the optics uncorrelated. We then adjust the correlated optics state and induce a parametric resonance to study ionization cooling under the resonant condition.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/11221453"><span id="translatedtitle">[Three-dimensional ultrasonography of monoamniotic <span class="hlt">twins</span>].</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Pedersen, M H; Larsen, T</p> <p>2001-01-29</p> <p>A case of monoamniotic <span class="hlt">twins</span> is described. Three-dimensional ultrasound scanning (3DUS) was used to visualise the fetuses lying in a single amniotic cavity. Entanglement of the umbilical cords with several knots was also visualised. The infants were delivered by elective caesarean section at 32 + 2 weeks with an uncomplicated postpartum course. Several knots found between the two umbilical cords, with separate placental insertion, were consistent with the ultrasound scan. We suggest that dedicated software solutions for volumetric ultrasound and knot analysis could contribute to a more precise description of the entanglement, which again would be a useful prognostic tool in the antenatal management and delivery of monoamniotic <span class="hlt">twins</span>. PMID:11221453</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NSDL&redirectUrl=http://ia.usu.edu/viewproject.php?project=ia:15489"><span id="translatedtitle"><span class="hlt">Healthy</span> Eating and You</span></a></p> <p><a target="_blank" href="http://nsdl.org/nsdl_dds/services/ddsws1-1/service_explorer.jsp">NSDL National Science Digital Library</a></p> <p>Miss Smith</p> <p>2010-12-13</p> <p>This project will get kids to explore what it means to be <span class="hlt">healthy</span>. The students will go through various websites to learn about <span class="hlt">healthy</span> eating and exercise. Students you will answer the various questions and go to each website to explore what you need to do to be a <span class="hlt">healthy</span> eater and what your body needs to function daily. Use the following website to explore your body and what the foods you eat really do for your body. Why you need certain foods Use ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/36136344"><span id="translatedtitle">Establishing Biorientation Occurs with Precocious Separation of the <span class="hlt">Sister</span> Kinetochores, but Not the Arms, in the Early Spindle of Budding Yeast</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Gohta Goshima; Mitsuhiro Yanagida</p> <p>2000-01-01</p> <p><span class="hlt">Sister</span> kinetochores are bioriented toward the spindle poles in higher eukaryotic prometaphase before chromosome segregation. We show that, in budding yeast, the <span class="hlt">sister</span> kinetochores are separated in the very early spindle, while the <span class="hlt">sister</span> arms remain associated. Biorientation of the separated kinetochores is achieved already after replication. Mtw1p, a homolog of fission yeast Mis12 required for biorientation, locates at the</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/29645780"><span id="translatedtitle">The diurnal rhythm in fetal heart rate in a <span class="hlt">twin</span> pregnancy with discordant anencephaly: comparison with three normal <span class="hlt">twin</span> pregnancies</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Simone Lunshof; Kees Boer; Gerdien van Hoffen; Hans Wolf; Majid Mirmiran</p> <p>1997-01-01</p> <p>In a discordant anencephalic <span class="hlt">twin</span> the hypothesis was tested that the fetal brain is necessary for the expression of a diurnal rhythm in fetal heart rate. Fetal heart rate recordings were made over a 24 h period in a discordant anencephalic <span class="hlt">twin</span> pregnancy and in three normal <span class="hlt">twin</span> pregnancies. Cosinor analysis was used to assess rhythmicity in fetal heart rate</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=Twins&id=EJ1040557"><span id="translatedtitle">Late Language Emergence in 24-Month-Old <span class="hlt">Twins</span>: Heritable and Increased Risk for Late Language Emergence in <span class="hlt">Twins</span></span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Rice, Mabel L.; Zubrick, Stephen R.; Taylor, Catherine L.; Gayán, Javier; Bontempo, Daniel E.</p> <p>2014-01-01</p> <p>Purpose: This study investigated the etiology of late language emergence (LLE) in 24-month-old <span class="hlt">twins</span>, considering possible <span class="hlt">twinning</span>, zygosity, gender, and heritability effects for vocabulary and grammar phenotypes. Method: A population-based sample of 473 <span class="hlt">twin</span> pairs participated. Multilevel modeling estimated means and variances of vocabulary and…</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_18");'>18</a></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li class="active"><span>20</span></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_20 --> <div id="page_21" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li class="active"><span>21</span></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li><a href="#" onclick='return showDiv("page_23");'>23</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="401"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-STC&redirectUrl=http://www.osti.gov/scitech/biblio/22163174"><span id="translatedtitle"><span class="hlt">Twin</span> nucleation and migration in FeCr single crystals</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Patriarca, L. [Politecnico di Milano, Department of Mechanical Engineering, Via La Masa 34, I-20156 Milano (Italy)] [Politecnico di Milano, Department of Mechanical Engineering, Via La Masa 34, I-20156 Milano (Italy); Abuzaid, Wael [Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green St., Urbana, IL 61801 (United States)] [Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green St., Urbana, IL 61801 (United States); Sehitoglu, Huseyin, E-mail: huseyin@illinois.edu [Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green St., Urbana, IL 61801 (United States)] [Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green St., Urbana, IL 61801 (United States); Maier, Hans J. [Lehrstuhl fuer Werkstoffkunde (Materials Science), University of Paderborn, 33095 Paderborn (Germany)] [Lehrstuhl fuer Werkstoffkunde (Materials Science), University of Paderborn, 33095 Paderborn (Germany); Chumlyakov, Y. [Physics of Plasticity and Strength of Materials Laboratory, Siberian Physical and Technical Institute, 634050 Tomsk (Russian Federation)] [Physics of Plasticity and Strength of Materials Laboratory, Siberian Physical and Technical Institute, 634050 Tomsk (Russian Federation)</p> <p>2013-01-15</p> <p>Tension and compression experiments were conducted on body-centered cubic Fe -47.8 at pct. Cr single crystals. The critical resolved shear stress (CRSS) magnitudes for slip nucleation, <span class="hlt">twin</span> nucleation and <span class="hlt">twin</span> migration were established. We show that the nucleation of slip occurs at a CRSS of about 88 MPa, while <span class="hlt">twinning</span> nucleates at a CRSS of about 191 MPa with an associated load drop. Following <span class="hlt">twin</span> nucleation, <span class="hlt">twin</span> migration proceeds at a CRSS that is lower than the initiation stress ( Almost-Equal-To 114-153 MPa). The experimental results of the nucleation stresses indicate that the Schmid law holds to a first approximation for the slip and <span class="hlt">twin</span> nucleation cases, but to a lesser extent for <span class="hlt">twin</span> migration particularly when considerable slip strains preceded <span class="hlt">twinning</span>. The CRSSs were determined experimentally using digital image correlation (DIC) in conjunction with electron back scattering diffraction (EBSD). The DIC measurements enabled pinpointing the precise stress on the stress-strain curves where <span class="hlt">twins</span> or slip were activated. The crystal orientations were obtained using EBSD and used to determine the activated <span class="hlt">twin</span> and slip systems through trace analysis. - Highlights: Black-Right-Pointing-Pointer Digital image correlation allows to capture slip/<span class="hlt">twin</span> initiation for bcc FeCr. Black-Right-Pointing-Pointer Crystal orientations from EBSD allow slip/<span class="hlt">twin</span> system indexing. Black-Right-Pointing-Pointer Nucleation of slip always precedes <span class="hlt">twinning</span>. Black-Right-Pointing-Pointer <span class="hlt">Twin</span> growth is sustained with a lower stress than required for nucleation. Black-Right-Pointing-Pointer <span class="hlt">Twin</span>-slip interactions provide high hardening at the onset of plasticity.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2781968"><span id="translatedtitle">Sexual conflict in <span class="hlt">twins</span>: male co-<span class="hlt">twins</span> reduce fitness of female Soay sheep</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Korsten, Peter; Clutton-Brock, Tim; Pilkington, Jill G.; Pemberton, Josephine M.; Kruuk, Loeske E. B.</p> <p>2009-01-01</p> <p>Males and females often have different requirements during early development, leading to sex-specific interactions between developing offspring. In polytocous mammals, competition for limited resources in utero may be asymmetrical between the sexes, and androgens produced by male foetuses could have adverse effects on the development of females, with potentially long-lasting consequences. We show here, in an unmanaged population of Soay sheep, that female lambs with a male co-<span class="hlt">twin</span> have reduced birth weight relative to those with a female co-<span class="hlt">twin</span>, while there was no such effect in male <span class="hlt">twins</span>. In addition, females with a male co-<span class="hlt">twin</span> had lower lifetime breeding success, which appeared to be mainly driven by differences in first-year survival. These results show that sex-specific sibling interactions can have long-term consequences for survival and reproduction, with potentially important implications for optimal sex allocation. PMID:19493877</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3799708"><span id="translatedtitle"><span class="hlt">Twin-Twin</span> Transfusion Syndrome Presenting as Polyhydramnios in Both Fetuses Secondary to Spontaneous Microseptostomy</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Hackney, David N.; Khalek, Nahla; Moldenhauer, Julie; Ozcan, Tulin</p> <p>2013-01-01</p> <p>The presence of polyhydramnios and oligohydramnios is pathognomonic for <span class="hlt">twin-twin</span> transfusion syndrome (TTTS). However, polyhydramnios of both <span class="hlt">twins</span> can exist in TTTS in the setting of a septostomy of the dividing membrane. In prior reported cases of dual polyhydramnios TTTS, the septostomy was identified through either ultrasound or fetoscopy thus helping to establish the diagnosis of TTTS with an unusual presentation. The presented case is a set of monochorionic, diamniotic <span class="hlt">twins</span> who presented initially with dual polyhydramnios. Subsequent ultrasound and clinical and pathologic findings were otherwise consistent with TTTS. Unlike prior reported cases, a septostomy of the dividing membrane was never identified with ultrasound or even on post delivery placental examination. However, microseptostomies were demonstrated due to the transfer of indigo carmine between the amniotic sacs at amniocentesis. Thus in the setting of TTTS concern, the diagnosis should be considered with dual polyhydramnios even if a septostomy cannot be identified. PMID:24147241</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://womenshealth.gov/aging/sexual-health/"><span id="translatedtitle"><span class="hlt">Healthy</span> Aging -- Sexual Health</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>... <span class="hlt">Healthy</span> Aging This information in Spanish ( en español ) Sexual health More information on sexual health Many older women ... Protecting yourself Return to top More information on Sexual health Read more from womenshealth.gov Sexually Transmitted Infections ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://www.eatright.org/resource/health/pregnancy/prenatal-wellness/healthy-weight-during-pregnancy"><span id="translatedtitle"><span class="hlt">Healthy</span> Weight during Pregnancy</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>... weight gain is kept within a <span class="hlt">healthy</span> range. Obesity during pregnancy is risky for both mother and child. Some risks include gestational diabetes, gestational hypertension (high blood pressure), Cesarean delivery, birth defects and ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://www.cdc.gov/diabetes/living/health.html"><span id="translatedtitle">Staying <span class="hlt">Healthy</span> with Diabetes</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>... Surveillance Diabetes Prevention and Control Staying <span class="hlt">Healthy</span> with Diabetes Language: English Español (Spanish) Recommend on Facebook Tweet ... examinations and tests are needed for people with diabetes? Your doctors shouldâ?? Measure your blood pressure at ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://www.niams.nih.gov/Health_Info/Kids/healthy_bones.asp"><span id="translatedtitle"><span class="hlt">Healthy</span> Bones Matter</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>... keep my bones more <span class="hlt">healthy</span>? Definitions What can go wrong? Reprinted from The Surgeon General’s Report on ... women who don’t smoke, and they often go through menopause earlier. Smokers also may absorb less ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://www.nlm.nih.gov/medlineplus/ency/patientinstructions/000336.htm"><span id="translatedtitle"><span class="hlt">Healthy</span> grocery shopping</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>... tell the difference between foods that are truly organic. Two words on food labels that can be ... <span class="hlt">healthy</span> choice for you. Know what "lite" and "light" mean. The word "lite" can mean fewer calories, ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://circ.ahajournals.org/content/127/17/e571.full"><span id="translatedtitle">Heart-<span class="hlt">Healthy</span> Exercise</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>... Institution: NIH Library User Name Password Sign In Cardiology Patient Page Heart-<span class="hlt">Healthy</span> Exercise Lauren Healey Mellett , ... Section Footnotes The information contained in this Circulation Cardiology Patient Page is not a substitute for medical ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2823270"><span id="translatedtitle">A <span class="hlt">Twin</span> Study of Sleep Duration and Body Mass Index</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Watson, Nathaniel F.; Buchwald, Dedra; Vitiello, Michael V.; Noonan, Carolyn; Goldberg, Jack</p> <p>2010-01-01</p> <p>Study Objective: To determine the relative importance of genetic and environmental contributions to the association between sleep duration and body mass index (BMI). Methods: <span class="hlt">Twins</span> from the University of Washington <span class="hlt">Twin</span> Registry, a community-based sample of U.S. <span class="hlt">twins</span>, provided self-reported height and weight for BMI calculation and habitual sleep duration. A generalized estimating equation model evaluated the overall and within <span class="hlt">twin</span> pair effects of sleep duration on BMI with and without stratification by <span class="hlt">twin</span> zygosity. A structural equation model was used to assess genetic and non-genetic contributions to BMI and sleep duration. Results: The study sample included 1,224 <span class="hlt">twins</span> comprised of 423 monozygotic, 143 dizygotic, and 46 indeterminate pairs. The mean age was 36.9 years; 69% were female. A multivariate adjusted analysis of all <span class="hlt">twins</span> revealed an elevated mean BMI (26.0 kg/m2) in short sleeping <span class="hlt">twins</span> (< 7 h/night) compared to <span class="hlt">twins</span> sleeping 7–8.9 h/night (BMI 24.8 kg/m2; p < 0.01). The within-<span class="hlt">twin</span> pair analysis revealed similar results, with the short sleeping <span class="hlt">twins</span> having a mean BMI of 25.8 kg/m2 compared to 24.9 kg/m2 for the 7–8.9 h/night sleep duration group (p = 0.02). When restricted to monozygotic <span class="hlt">twins</span>, the within-<span class="hlt">twin</span> pair analysis continued to reveal an elevated BMI in the short sleeping <span class="hlt">twins</span> (25.7 kg/m2) compared to the 7–8.9 h/night reference group (24.7 kg/m2; p = 0.02). No differences in mean BMI were observed between the 7–8.9 h/night reference group <span class="hlt">twins</span> and longer sleeping <span class="hlt">twins</span> (? 9 h/night) in the analysis of all <span class="hlt">twins</span>, the overall within-<span class="hlt">twin</span> pair analysis, or the within-<span class="hlt">twin</span> pair analysis stratified by zygosity. The heritability of sleep duration was 0.31 (p = 0.08) and BMI 0.76 (p < 0.01). Bivariate genetic analysis revealed little evidence of shared genetics between sleep duration and BMI (p = 0.28). Conclusions: Short sleep was associated with elevated BMI following careful adjustment for genetics and shared environment. These findings point toward an environmental cause of the relationship between sleep duration and BMI. Citation: Watson NF; Buchwald D; Vitiello MV; Noonan C; Goldberg J. A <span class="hlt">twin</span> study of sleep duration and body mass index. J Clin Sleep Med 2010;6(1):11-17. PMID:20191932</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25725685"><span id="translatedtitle">Conjoined <span class="hlt">twins</span> with single heart and liver - a case report.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Nahar, N; Khan, N; Islam, S M; Chakraborty, R K; Rima, S Z; Ara, R; Mahmood, S; Hossain, G A</p> <p>2015-01-01</p> <p><span class="hlt">Twin</span> pregnancy is common but conjoined <span class="hlt">twins</span> are an extremely rare congenital malformation without any known genetic predisposition. The incidence of conjoined <span class="hlt">twins</span> is estimated to be around 1 in 250,000 live births with a female predilection. We presented an extremely rare case of abdomino-thoracopagus with single heart and liver. In this paper, the imaging of conjoined <span class="hlt">twins</span> both antenatally and postnatally is reviewed, in particular taking into consideration recent advances with gray scale and color Doppler ultrasound. This case is of particular interest because of the rarity of abdomino-thoracopagus <span class="hlt">twins</span> with single heart and liver, in literature. PMID:25725685</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/1989ZPhyD..12..119G"><span id="translatedtitle">The structure of small penta-<span class="hlt">twinned</span> gold particles</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Gao, Pei-Yu; Kunath, W.; Gleiter, H.; Weiss, K.</p> <p>1989-03-01</p> <p>The structural feathers of penta-<span class="hlt">twinned</span> gold particles (size between 2 and 6 nm) generated by gas evaporation have been investigated by high resolution TEM. The structural characteristic of penta-<span class="hlt">twinned</span> particles is different from that of quasi-crystals that the five coherent or incoherent <span class="hlt">twin</span> boundaries separating the <span class="hlt">twin</span> oriented segments do not join up along a common edge. The lattice parameter is reduced by 4 5% in comparison to that of bulk gold. The formation of the penta-<span class="hlt">twinned</span> particles is proposed to occur by particle collision. The particles were observed to be crystalline at ambient temperature.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/1984STIN...8434032G"><span id="translatedtitle">Interactions of <span class="hlt">twin</span> boundaries and dislocations in solar silicon</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Gleichmann, R.; Ast, D. G.</p> <p>1984-06-01</p> <p>Changes in the defect structure which occur when rapidly grown, edge defined film fed growth silicon ribbons are processed at high temperatures are investigated. <span class="hlt">Twin</span> boundaries, which comprise the major structural defects in the ribbons act as strong obstacles to dislocation glide. The impedance of dislocation glide, possible mechanisms for slip transfer across <span class="hlt">twins</span>, and implications for the mechanical and electrical properties of the silicon ribbons are discussed. A model is developed which explains both <span class="hlt">twin</span> induced grain boundary formation during recovery of the microstructure and also the generation of microtwins and second order <span class="hlt">twin</span> joins by glide induced <span class="hlt">twinning</span> processes.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://hal.inria.fr/docs/00/67/80/51/PDF/RR-06-07b.pdf"><span id="translatedtitle"><span class="hlt">Twins</span> Vertices in Hypergraphs Raoul Medina1</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Boyer, Edmond</p> <p></p> <p><span class="hlt">Twins</span> Vertices in Hypergraphs Raoul Medina1 and Caroline Noyer and Olivier Raynaud2 Research Report LIMOS/RR-06-07 24 juillet 2006 1 medina@isima.fr 2 raynaud@isima.fr hal-00678051,version1-12Mar2012 #12</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/36756901"><span id="translatedtitle">Type A personality in Australian <span class="hlt">twins</span></span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>David L. Duffy; Vijaya Manicavasagar; Dianne O'Connell; Derrick Silove; Chris Tennant; Pauline Langelludecke</p> <p>1994-01-01</p> <p>We examined the genetic and environmental determinants of Type A behavior in 200 pairs of same-sex <span class="hlt">twins</span> as measured by the structured interview (SI) of Rosenman and Friedman and by the Bortner questionnaire (BARS). As noted previously, these measures are poorly correlated (r=.30). Quite different heritabilities were found for the two measures (63% for SI, 23% for BARS), and the</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/3748236"><span id="translatedtitle">[Discordant syringomyelia <span class="hlt">twins</span> in familial syringomyelia].</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Malessa, R; Jörg, J</p> <p>1986-07-01</p> <p>A case is reported of a pair of monozygous <span class="hlt">twins</span> who were discordant for and their syringomyelia, and whose brother also suffered from this disease. On the basis of this extraordinarily rare constellation, the role of heredity and the possible importance of environmental factors in the manifestation of syringomyelia are discussed. PMID:3748236</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/2015FoPh..tmp...46G"><span id="translatedtitle">Secure Communication in the <span class="hlt">Twin</span> Paradox</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Garcia-Escartin, Juan Carlos; Chamorro-Posada, Pedro</p> <p>2015-05-01</p> <p>The amount of information that can be transmitted through a noisy channel is affected by relativistic effects. Under the presence of a fixed noise at the receiver, there appears an asymmetry between "slowly aging" and "fast aging" observers which can be used to have private information transmission. We discuss some models for users inside gravitational wells and in the <span class="hlt">twin</span> paradox scenario.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=universe+AND+model&pg=3&id=EJ963861"><span id="translatedtitle"><span class="hlt">Twin</span> Paradox in de Sitter Spacetime</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Boblest, Sebastian; Muller, Thomas; Wunner, Gunter</p> <p>2011-01-01</p> <p>The "<span class="hlt">twin</span> paradox" of special relativity offers the possibility of making interstellar flights within a lifetime. For very long journeys with velocities close to the speed of light, however, we have to take into account the expansion of the universe. Inspired by the work of Rindler on hyperbolic motion in curved spacetime, we study the worldline…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://snowbird.djvuzone.org/2008/abstracts/122.pdf"><span id="translatedtitle"><span class="hlt">Twin</span> Gaussian Processes for Structured Prediction</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Liefeng Bo; Cristian Sminchisescu</p> <p>2010-01-01</p> <p>We describe <span class="hlt">twin</span> Gaussian processes (TGP), a generic structured prediction method that uses Gaussian process (GP) priors on both covariates and responses, both multivariate, and estimates outputs by minimizing the Kullback-Leibler divergence between two GP modeled as normal distributions over finite index sets of training and testing examples, emphasizing the goal that similar inputs should produce similar percepts and this</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/24360590"><span id="translatedtitle">Prediction of preterm birth in <span class="hlt">twins</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Makrydimas, George; Sotiriadis, Alexandros</p> <p>2014-02-01</p> <p>About 13% of <span class="hlt">twins</span> are born before 34 weeks and 7% before 32 weeks. The prediction of preterm birth in <span class="hlt">twins</span> is based on the same tests as in singleton pregnancies. In <span class="hlt">twin</span> pregnancies, the cut-off for short cervix at the second trimester scan is less than 25 mm (compared with 15 mm in singletons); length less than 20 mm is associated with 42% risk for birth before 32 weeks and cervical length less than 25 mm is associated with 28% risk for birth before 28 weeks. The measurement of cervical length in pregnancies with symptoms of preterm labour may have limited accuracy in predicting preterm birth. In asymptomatic women, a positive fetal fibronectin test seems to be associated with 35% risk for birth before 32 weeks and 40% risk for birth less than 34 weeks, whereas a negative test decreases the risk to 6% and 17%, respectively. The differences in the predictive value of tests between <span class="hlt">twins</span> and singletons reflect the diverse pathophysiology of preterm birth between the two groups. PMID:24360590</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_19");'>19</a></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li class="active"><span>21</span></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li><a href="#" onclick='return showDiv("page_23");'>23</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_21 --> <div id="page_22" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li class="active"><span>22</span></li> <li><a href="#" onclick='return showDiv("page_23");'>23</a></li> <li><a href="#" onclick='return showDiv("page_24");'>24</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="421"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=Serbian&pg=5&id=EJ557028"><span id="translatedtitle">Babbling of <span class="hlt">Twins</span> in a Bilingual Environment.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Zlatic, Larisa; Macneilage, Peter; Matyear, Christine L.; Davis, Barbara L.</p> <p>1997-01-01</p> <p>Examines the phonetic characteristics of babbling by a pair of fraternal <span class="hlt">twins</span> raised in a bilingual environment (English/Serbian). The study focused on the basic articulatory form of babbling, the impact of twinship on babbling patterns, and whether effects specific to one or another of the ambient languages could be observed. (30 references)…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.ptmp.pl/archives/apm/14-2/APM142-6-Kurlej2.pdf"><span id="translatedtitle">Estimation of dental occlusion defects among <span class="hlt">twins</span></span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>AGNIESZKA SZULGAN-M?DRZAK; BOHDAN GWORYS</p> <p></p> <p>Occlusion defects are dependent on genetic factors strongly determination facial part of cranium structure and environmental factors. The assessment of these factors might contribute to the correction of therapeutic and prophylactic orthodontic proceedings . The aim of research is to estimate human occlusion defect among pairs of <span class="hlt">twins</span> of the same gender and pairs of different gender. The research was</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.catalogs.umn.edu/download/TCgrad/GradEdCat-Fall2012-CCE.pdf"><span id="translatedtitle"><span class="hlt">Twin</span> Cities Campus Addiction Studies Postbaccalaureate Certificate</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Blanchette, Robert A.</p> <p></p> <p>· · · · · · · <span class="hlt">Twin</span> Cities Campus Addiction Studies Postbaccalaureate Certificate CCE Addiction: Addiction Studies, Degree and Certificate Programs, 20 Ruttan Hall, 1994 Buford Avenue, St. Paul, MN 55108 (612-624-4000; fax: 612- 625-1511) Email: cceinfo@umn.edu Website: http://www.cce.umn.edu/Addiction</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://eric.ed.gov/?q=heritability&pg=3&id=EJ950022"><span id="translatedtitle">A Pediatric <span class="hlt">Twin</span> Study of Brain Morphometry</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Wallace, Gregory L.; Schmitt, J. Eric; Lenroot, Rhoshel; Viding, Essi; Ordaz, Sarah; Rosenthal, Michael A.; Molloy, Elizabeth A.; Clasen, Liv S.; Kendler, Kenneth S.; Neale, Michael C.; Giedd, Jay N.</p> <p>2006-01-01</p> <p>Background: Longitudinal pediatric neuroimaging studies have demonstrated increasing volumes of white matter and regionally-specific inverted U shaped developmental trajectories of gray matter volumes during childhood and adolescence. Studies of monozygotic and dyzygotic <span class="hlt">twins</span> during this developmental period allow exploration of genetic and…</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www1.umn.edu/urelate/assets/pdf/Facts-2014.pdf"><span id="translatedtitle">UNIVERSITY OF MINNESOTA <span class="hlt">TWIN</span> CITIES (UMTC)</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Minnesota, University of</p> <p></p> <p>Campuses UNIVERSITY OF MINNESOTA <span class="hlt">TWIN</span> CITIES (UMTC) One of the largest and most prestigious public research universities in the nation. UNIVERSITY OF MINNESOTA DULUTH (UMD) Consistently ranks among the top midwestern regional universities. UNIVERSITY OF MINNESOTA MORRIS (UMM) Ranked as one of the top public</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3900763"><span id="translatedtitle">An overview of human handedness in <span class="hlt">twins</span></span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Ooki, Syuichi</p> <p>2014-01-01</p> <p>There has been a long-standing debate on the complex correlation between the development of human hand preference and brain lateralization. Handedness, used as a proxy for cerebral lateralization, is a topic of considerable importance because of its potential to reveal the mechanisms of the underlying pathophysiology of problems related to brain development or cognitive systems. <span class="hlt">Twin</span> studies, which represent an important method of research in human genetics, would provide valuable suggestions to the studies on the relationship between lateralization and cognitive systems. Many studies have been performed using <span class="hlt">twin</span> subjects; however, the results are inconsistent, partly because of sample size, background assumptions, data limits or inaccuracies, incorrect zygosity classification, and/or lack of birth histories. In summary, within the long history and large number of <span class="hlt">twin</span> studies performed on handedness, a surprisingly large number of controversial findings have been reported, suggesting the complicated nature of this phenotype. In this mini review, the wide variety of <span class="hlt">twin</span> studies on human handedness performed to date are introduced. PMID:24478742</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3975649"><span id="translatedtitle">Late language emergence in 24 month <span class="hlt">twins</span>: Heritable and increased risk for LLE in <span class="hlt">twins</span></span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Rice, Mabel L.; Zubrick, Stephen R.; Taylor, Catherine L.; Gayán, Javier; Bontempo, Daniel E.</p> <p>2013-01-01</p> <p>Purpose This study investigated the etiology of Late Language Emergence (LLE) in 24-month-old <span class="hlt">twins</span> considering possible <span class="hlt">twinning</span>, zygosity, gender, and heritability effects for vocabulary and grammar phenotypes. Method A population-based sample of 473 <span class="hlt">twin</span> pairs participated. Multilevel modelling estimated means and variances of vocabulary and grammar phenotypes, controlling for familiality. Heritability was estimated with DeFries-Fulker regression, and variance components models, to determine effects of heritability, shared-environment, and non-shared environment. Results <span class="hlt">Twins</span> had lower average language scores than norms for singleborn children, with lower average performance for MZ than DZ <span class="hlt">twins</span>, and lower for boys than girls, although gender and zygosity did not interact. Gender did not predict LLE. Significant heritability was detected for vocabulary (.26) and grammar phenotypes (.52/.43 for males/females) in the full sample, and in the sample selected for LLE (.42 and .44). LLE and the appearance of Word Combinations were also significantly heritable (.22-.23). Conclusion The findings revealed an increased likelihood of LLE in <span class="hlt">twin</span> toddlers compared to singleborn children that is modulated by zygosity and gender differences. Heritability estimates are consistent with previous research for vocabulary and add further suggestion of heritable differences in early grammar acquisition. PMID:24167238</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23218177"><span id="translatedtitle">University of Washington <span class="hlt">Twin</span> Registry: poised for the next generation of <span class="hlt">twin</span> research.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Strachan, Eric; Hunt, Corinne; Afari, Niloofar; Duncan, Glen; Noonan, Carolyn; Schur, Ellen; Watson, Nathaniel; Goldberg, Jack; Buchwald, Dedra</p> <p>2013-02-01</p> <p>The University of Washington <span class="hlt">Twin</span> Registry is a unique community-based registry of <span class="hlt">twin</span> pairs who join specifically to participate in scientific research. It was founded in 2002 to serve as a resource for investigators throughout the scientific community. Current enrollment exceeds 7,200 pairs, and plans are in place to increase enrollment to 10,000 pairs by 2015. In addition to serving as a recruitment base for new research studies, the registry maintains extensive and continually expanding survey data on physical and mental health, as well as a biorepository that includes DNA from more than 8,800 individual <span class="hlt">twins</span>. The registry is engaged in linking member data to birth records and to diagnostic and procedure variables for hospital-based care provided to members in Washington State. It also incorporates several innovative variables relevant to the built and social environments, which were created by geocoding <span class="hlt">twin</span> addresses and linking the resulting coordinates to geospatial information systems databases. This combination of existing data and biospecimens, characterizing a group of <span class="hlt">twins</span> who are willing to participate in research, is a valuable resource for the new wave of <span class="hlt">twin</span> studies. These include 'omics', epigenetics, gene-by-environment interactions, and other novel methods to understand human health. PMID:23218177</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3972260"><span id="translatedtitle">Sex Differences in the Pathways to Major Depression: A Study of Opposite-Sex <span class="hlt">Twin</span> Pairs</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Kendler, Kenneth S.; Gardner, Charles O.</p> <p>2014-01-01</p> <p>Objective The authors sought to clarify the nature of sex differences in the etiologic pathways to major depression. Method Retrospective and prospective assessments of 20 developmentally organized risk factors and the occurrence of past-year major depression were conducted at two waves of personal interviews at least 12 months apart in 1,057 opposite-sex dizygotic <span class="hlt">twin</span> pairs from a population-based register. Analyses were conducted by structural modeling, examining within-pair differences. Results Sixty percent of all paths in the best-fit model exhibited sex differences. Eleven of the 20 risk factors differed across sexes in their impact on liability to major depression. Five had a greater impact in women: parental warmth, neuroticism, divorce, social support, and marital satisfaction. Six had a greater impact in men: childhood sexual abuse, conduct disorder, drug abuse, prior history of major depression, and distal and dependent proximal stressful life events. The life event categories responsible for the stronger effect in males were financial, occupational, and legal in nature. Conclusions In a co-<span class="hlt">twin</span> control design, which matches <span class="hlt">sisters</span> and brothers on genetic and familial-environmental background, personality and failures in interpersonal relationships played a stronger etiologic role in major depression for women than for men. Externalizing psychopathology, prior depression, and specific “instrumental” classes of acute stressors were more important in the etiologic pathway to major depression for men. The results are consistent with previously proposed typologies of major depression that suggest two subtypes that differ in prevalence in women (deficiencies in caring relationships and interpersonal loss) and men (failures to achieve expected goals, with lowered self-worth). PMID:24525762</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/2005PhRvB..71v4102O"><span id="translatedtitle">Energy landscape of deformation <span class="hlt">twinning</span> in bcc and fcc metals</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Ogata, Shigenobu; Li, Ju; Yip, Sidney</p> <p>2005-06-01</p> <p>Energy landscapes of (21¯1¯)?111? deformation <span class="hlt">twinning</span> in bcc Mo and (111)?112¯? deformation <span class="hlt">twinning</span> in fcc Al and Cu are determined using density functional theory for sliding of layers numbering up to 7. In bcc Mo, the minimum thickness of a metastable <span class="hlt">twin</span> is two layers, while <span class="hlt">twin</span> embryos of three and four layers are unstable. Starting from five layers, the Mo <span class="hlt">twin</span> can grow in a layer-by-layer fashion. The <span class="hlt">twin</span> boundary formation and migration energies are found to be 607 and 40mJ/m , respectively, implying that partial dislocations on <span class="hlt">twin</span> boundaries will have wide cores and high mobilities. The stress to homogeneously nucleate a partial loop on the boundary of a thick <span class="hlt">twin</span> is determined to be only 1.4GPa , indicating that once a deformation <span class="hlt">twin</span> in Mo reaches a critical thickness, which we estimate to be six layers, it can grow rather easily. Based on simple defect mechanics considerations, we estimate the condition for runaway defect growth requires <span class="hlt">twin</span> embryo thickness to be tens of layers. Comparing the <span class="hlt">twinning</span> energy landscape for Mo with those of Al and Cu, we find the former to have a longer ranged interlayer mechanical coupling, which is due to angular bonding and weaker electron screening in the intervening layers. Between Al and Cu, interactions in the former are relatively longer ranged.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/15811502"><span id="translatedtitle">Prenatal programming of behavior: a <span class="hlt">twin</span>-study perspective.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Rose, Richard J</p> <p>2005-04-01</p> <p>This paper reviews three designs that compare co-<span class="hlt">twins</span> in tests of prenatal programming. The first design uses co-<span class="hlt">twin</span> comparisons to attempt within-family replications of between-family associations, reported in non-<span class="hlt">twins</span>, between reduced fetal growth and risk for later disease or behavior disorder. These replication efforts are mixed, perhaps due to small samples of weight-discordant <span class="hlt">twins</span>, perhaps confounded by differences in the meaning of fetal growth in <span class="hlt">twins</span>. The second design compares monozygotic co-<span class="hlt">twins</span> from pairs differing in their placentation, with some evidence, again constrained by sample limitations that <span class="hlt">twins</span> sharing a single placenta are more alike in dimensions of cognitive ability and personality. A third design employs a dermatoglyphic index of bilateral asymmetry as a marker of reduced buffering from environmental noise, with positive results from MZ <span class="hlt">twins</span> that await necessary replication in longitudinal data from non-<span class="hlt">twins</span>. <span class="hlt">Twin</span> comparisons, especially the comparisons of monozygotic co-<span class="hlt">twins</span>, offer an informative and incisive approach for research on prenatal programming in humans. PMID:15811502</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1051742"><span id="translatedtitle">Gonadal mosaicism for incontinentia pigmenti in a <span class="hlt">healthy</span> male.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Kirchman, T T; Levy, M L; Lewis, R A; Kanzler, M H; Nelson, D L; Scheuerle, A E</p> <p>1995-01-01</p> <p>Incontinentia pigmenti (IP) is a genodermatosis that segregates as an X linked dominant trait with male lethality. The disease has been linked to Xq28 in a number of studies. A few affected males have been documented, most of whom have a 47,XXY karyotype. We report a family with two paternally related half <span class="hlt">sisters</span>, each affected with IP. The father is <span class="hlt">healthy</span>, clinically normal, and has a 46,XY normal male karyotype. Linkage analysis of 12 polymorphic markers (two X linked and 10 autosomal) confirms paternity. X inactivation studies with the human androgen receptor (HUMARA) indicate that the paternal X chromosome is inactivated preferentially in each girl, implying that this chromosome carries the IP mutation, and that the father is a gonadal mosaic for the IP mutation. Images PMID:8592334</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4493748"><span id="translatedtitle">Smc5–Smc6 mediate DNA double-strand-break repair by promoting <span class="hlt">sister</span>-chromatid recombination</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>De Piccoli, Giacomo; Cortes-Ledesma, Felipe; Ira, Gregory; Torres-Rosell, Jordi; Uhle, Stefan; Farmer, Sarah; Hwang, Ji-Young; Machin, Felix; Ceschia, Audrey; McAleenan, Alexandra; Cordon-Preciado, Violeta; Clemente-Blanco, Andrés; Vilella-Mitjana, Felip; Ullal, Pranav; Jarmuz, Adam; Leitao, Beatriz; Bressan, Debra; Dotiwala, Farokh; Papusha, Alma; Zhao, Xiaolan; Myung, Kyungjae; Haber, James E.; Aguilera, Andrés; Aragón, Luis</p> <p>2015-01-01</p> <p>DNA double-strand breaks (DSB) can arise during DNA replication, or after exposure to DNA-damaging agents, and their correct repair is fundamental for cell survival and genomic stability. Here, we show that the Smc5–Smc6 complex is recruited to DSBs de novo to support their repair by homologous recombination between <span class="hlt">sister</span> chromatids. In addition, we demonstrate that Smc5–Smc6 is necessary to suppress gross chromosomal rearrangements. Our findings show that the Smc5–Smc6 complex is essential for genome stability as it promotes repair of DSBs by error-free <span class="hlt">sister</span>-chromatid recombination (SCR), thereby suppressing inappropriate non-<span class="hlt">sister</span> recombination events. PMID:16892052</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25851727"><span id="translatedtitle">Why Accurate Knowledge of Zygosity is Important to <span class="hlt">Twins</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Cutler, Tessa L; Murphy, Kate; Hopper, John L; Keogh, Louise A; Dai, Yun; Craig, Jeffrey M</p> <p>2015-06-01</p> <p>All same-sex dizygotic (DZ) <span class="hlt">twins</span> and approximately one-third of monozygotic (MZ) <span class="hlt">twin</span> pairs have separate placentas, making it impossible to use the number of placentas to determine zygosity. Zygosity determination is further complicated because incorrect assumptions are often made, such as that only DZ pairs have two placentas and that all MZ pairs are phenotypically identical. These assumptions, by <span class="hlt">twins</span>, their families and health professionals, along with the lack of universal zygosity testing for same-sex <span class="hlt">twins</span>, has led to confusion within the <span class="hlt">twin</span> community, yet little research has been conducted with <span class="hlt">twins</span> about their understanding and assumptions about zygosity. We aimed to explore and quantify understanding and assumptions about zygosity using <span class="hlt">twins</span> attending an Australian <span class="hlt">twin</span> festival. We recruited 91 <span class="hlt">twin</span> pairs younger than 18 years of age and their parents, and 30 adult <span class="hlt">twin</span> pairs who were all uncertain of their zygosity, to complete one pen and paper questionnaire and one online questionnaire about their assumed zygosity, reasons for their assumptions and the importance of accurate zygosity knowledge. Responses were compared with their true zygosity measured using a genetic test. We found a substantial proportion of parents and <span class="hlt">twins</span> had been misinformed by their own parents or medical professionals, and that knowledge of their true zygosity status provided peace of mind and positive emotional responses. For these reasons we propose universal zygosity testing of same-sex <span class="hlt">twins</span> as early in life as possible and an increase in education of medical professionals, <span class="hlt">twins</span> and families of <span class="hlt">twins</span> about zygosity issues. PMID:25851727</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.hfhl.umn.edu/prod/groups/cfans/@pub/@cfans/@hfhl/documents/article/cfans_article_350199.pdf"><span id="translatedtitle"><span class="hlt">Healthy</span> Foods, <span class="hlt">Healthy</span> Lives Institute Spring 2011 Grants Awarded</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Amin, S. Massoud</p> <p></p> <p><span class="hlt">Healthy</span> Foods, <span class="hlt">Healthy</span> Lives Institute Spring 2011 Grants Awarded "Harvesting Healthier Food: A Program of Safe Food Handling Practices for Immigrant Farmers" Amount Awarded: $49,991 Co-PI: Hli Xyooj: This community-university collaboration requests $49,991 from The University of Minnesota <span class="hlt">Healthy</span> Food, <span class="hlt">Healthy</span></p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3431552"><span id="translatedtitle">Tools for <span class="hlt">Healthy</span> Tribes</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Fleischhacker, Sheila; Byrd, Randi R.; Ramachandran, Gowri; Vu, Maihan; Ries, Amy; Bell, Ronny A.; Evenson, Kelly R.</p> <p>2012-01-01</p> <p>There is growing recognition that policymakers can promote access to <span class="hlt">healthy</span>, affordable foods within neighborhoods, schools, childcare centers, and workplaces. Despite the disproportionate risk of obesity and type 2 diabetes among American Indian children and adults, comparatively little attention has been focused on the opportunities tribal policymakers have to implement policies or resolutions to promote access to <span class="hlt">healthy</span>, affordable foods. This paper presents an approach for integrating formative research into an action-oriented strategy of developing and disseminating tribally led environmental and policy strategies to promote access to and consumption of <span class="hlt">healthy</span>, affordable foods. This paper explains how the American Indian <span class="hlt">Healthy</span> Eating Project evolved through five phases and discusses each phase’s essential steps involved, outcomes derived, and lessons learned. Using community-based participatory research and informed by the Social Cognitve Theory and ecologic frameworks, the American Indian <span class="hlt">Healthy</span> Eating Project was started in fall 2008 and has evolved through five phases: (1) starting the conversation; (2) conducting multidisciplinary formative research; (3) strengthening partnerships and tailoring policy options; (4) disseminating community-generated ideas; and (5) accelerating action while fostering sustainability. Collectively, these phases helped develop and disseminate Tools for <span class="hlt">Healthy</span> Tribes—a toolkit used to raise awareness among participating tribal policymakers of their opportunities to improve access to <span class="hlt">healthy</span>, affordable foods. Formal and informal strategies can engage tribal leaders in the development of culturally appropriate and tribe-specific sustainable strategies to improve such access, as well as empower tribal leaders to leverage their authority toward raising a healthier generation of American Indian children. PMID:22898161</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/22937155"><span id="translatedtitle">The first record of a trans-oceanic <span class="hlt">sister</span>-group relationship between obligate vertebrate troglobites.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Chakrabarty, Prosanta; Davis, Matthew P; Sparks, John S</p> <p>2012-01-01</p> <p>We show using the most complete phylogeny of one of the most species-rich orders of vertebrates (Gobiiformes), and calibrations from the rich fossil record of teleost fishes, that the genus Typhleotris, endemic to subterranean karst habitats in southwestern Madagascar, is the <span class="hlt">sister</span> group to Milyeringa, endemic to similar subterranean systems in northwestern Australia. Both groups are eyeless, and our phylogenetic and biogeographic results show that these obligate cave fishes now found on opposite ends of the Indian Ocean (separated by nearly 7,000 km) are each others closest relatives and owe their origins to the break up of the southern supercontinent, Gondwana, at the end of the Cretaceous period. Trans-oceanic <span class="hlt">sister</span>-group relationships are otherwise unknown between blind, cave-adapted vertebrates and our results provide an extraordinary case of Gondwanan vicariance. PMID:22937155</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-STC&redirectUrl=http://www.osti.gov/scitech/biblio/6052504"><span id="translatedtitle">Frequency of <span class="hlt">sister</span> chromatid exchange in peripheral lymphocytes of male pesticide applicators</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Rupa, D.S. (Univ. of California, Riverside (United States)); Reddy, P.P. (Inst. of Genetics, Hyderabad (India)); Sreemannarayana, K. (Sree Venkateswara Eye Clinic, Ongole (India)); Reddi, O.S. (Inst. of Molecular Immunology and Biotechnology, Hyderabad (India))</p> <p>1991-01-01</p> <p>In the present study 61 male pesticide applicators who worked in cotton fields and regularly sprayed pesticides such as DDT, BHC, endosulfan, malathion, methyl parathion, phosphamidon, dimethoate, monocrotophos, quinalphos fenvelrate, and cypermethrin were analyzed for <span class="hlt">sister</span> chromatid exchanges, mitotic index, and cell cycle kinetics in peripheral lymphocytes. Subjects who handled pesticides were non-smokers and teetotalers and the data were compared with the matched control group. Statistical analysis revealed that the frequency of <span class="hlt">sister</span> chromatid exchanges was significantly higher among the pesticide applicators at all the durations of exposure when compared to controls. Subjects exposed to pesticides also showed cell cycle delay and decrease in mitotic index when compared to the control group.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/10393269"><span id="translatedtitle"><span class="hlt">Sister</span> chromatid exchange data fit with a mixture of Poisson distributions.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Byers, R H; Shenton, L R</p> <p>1999-06-30</p> <p>Bowman et al. [K.O. Bowman, Wesley Eddings, Marvin A. Kastenbaum, L. R. Shenton. <span class="hlt">Sister</span> chromatid exchange data and Gram-Charlier series, Mutat. Res., 403 (1998) 159-169.] have shown that a Gram-Charlier modification of a negative binomial distribution gives a reasonable fit to counts of <span class="hlt">sister</span> chromatid exchange (SCE) data originally presented by Bender et al. [M.A. Bender, R.J. Preston, R. C. Leonard, B.E. Pyatt, P.C. Gooch, On the distribution of spontaneous SCE in human peripheral blood lymphocytes, Mutat. Res., 281 (1992) 227-232. ]. Here we show that a mixture of a generalized Poisson distributions also fits the data. Advantages of the generalized Poisson mixture include a simplified model involving only four parameters which fits the data more closely according to the chi-squared goodness-of-fit criterion. PMID:10393269</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=ERIC&redirectUrl=http://files.eric.ed.gov/fulltext/ED527015.pdf"><span id="translatedtitle"><span class="hlt">Healthy</span> Schools Network, 2011 Yearbook</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Healthy Schools Network, Inc., 2011</p> <p>2011-01-01</p> <p>This paper presents the 2011 Yearbook of the <span class="hlt">Healthy</span> Schools Network. This yearbook contains: (1) Tough Time To Be a Child: Parents and Taxpayers Should Be Enraged; (2) National Coalition For Healthier Schools: <span class="hlt">Healthy</span> Schools 2015--Sustaining Momentum In Tough Times; (3) <span class="hlt">Healthy</span> Schools Heroes Award Program; (4) National <span class="hlt">Healthy</span> Schools Day…</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_20");'>20</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li class="active"><span>22</span></li> <li><a href="#" onclick='return showDiv("page_23");'>23</a></li> <li><a href="#" onclick='return showDiv("page_24");'>24</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_22 --> <div id="page_23" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li class="active"><span>23</span></li> <li><a href="#" onclick='return showDiv("page_24");'>24</a></li> <li><a href="#" onclick='return showDiv("page_25");'>25</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="441"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/42792684"><span id="translatedtitle">A Limnological Survey of Third <span class="hlt">Sister</span> Lake, Michigan with Historical Comparisons</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>T. B. Bridgeman; C. D. Wallace; G. S. Carter; R. Carvajal; L. C. Schiesari; S. Aslam; E. Cloyd; D. Elder; A. Field; K. L. Schulz; P. M. Yurista; G. W. Kling</p> <p>2000-01-01</p> <p>Third <span class="hlt">Sister</span> Lake in southeastern Michigan has been a focus of ecological studies since 1904. In 1999, we surveyed several physical, chemical, and biological parameters of the lake and compiled data collected by University of Michigan students since 1975. Comparison of dissolved oxygen profiles from years 1927–29, 1939–42 to recent data (1992–99) indicate a decrease in maximum oxygenation of bottom</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/34415479"><span id="translatedtitle">Predicting Big Brothers\\/Big <span class="hlt">Sisters</span> volunteer attrition with the 16 PF</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Keith C. Herman; Paula M. Usita</p> <p>1994-01-01</p> <p>Volunteer attrition is a common problem for Big Brothers\\/Big <span class="hlt">Sisters</span> agencies. The present study investigated the utility of a self-report personality inventory, the 16 PF, as an attrition screening tool. Through discriminant analysis, the 16 PF correctly classified 100% of committed and uncommitted volunteers (N= 22). Committed volunteers tended to be more-conceptual, conscientious, and feelings-oriented than uncommitted volunteers.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.springerlink.com/index/33112186130828l8.pdf"><span id="translatedtitle">The effects of boric acid on <span class="hlt">sister</span> chromatid exchanges and chromosome aberrations in cultured human lymphocytes</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Mehmet Arslan; Mehmet Topaktas; Eyyüp Rencuzogullari</p> <p>2008-01-01</p> <p>The aim of this study was to determine the possible genotoxic effects of boric acid (BA) (E284), which is used as an antimicrobial\\u000a agent in food, by using <span class="hlt">sister</span> chromatid exchange (SCEs) and chromosome aberration (CAs) tests in human peripheral lymphocytes.\\u000a The human lymphocytes were treated with 400, 600, 800, and 1000 ?g\\/mL concentrations of BA dissolved in dimethyl sulfoxide</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/31782642"><span id="translatedtitle"><span class="hlt">Sisters</span> of women with premature ovarian failure may not be ideal ovum donors</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Linda Sung; Maria Bustillo; Tanmoy Mukherjee; Georgie Booth; Alexis Karstaedt; Alan B. Copperman</p> <p>1997-01-01</p> <p>Objectives: To determine whether the <span class="hlt">sisters</span> of women with premature ovarian failure (POF) showed a response to gonadotropin stimulation comparable to that of anonymous ovum donors.Design: Historical cohort study.Setting: Records of 228 consecutive ovum recipients in an academic assisted reproductive technology program.Patient(s): Criteria for inclusion were oocyte recipients age ? 40 years, FSH >18 mIU\\/mL (conversion factor to SI unit,</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/34766892"><span id="translatedtitle">Roles of the <span class="hlt">sister</span> chromatid cohesion apparatus in gene expression, development, and human syndromes</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Dale Dorsett</p> <p>2007-01-01</p> <p>The <span class="hlt">sister</span> chromatid cohesion apparatus mediates physical pairing of duplicated chromosomes. This pairing is essential for\\u000a appropriate distribution of chromosomes into the daughter cells upon cell division. Recent evidence shows that the cohesion\\u000a apparatus, which is a significant structural component of chromosomes during interphase, also affects gene expression and\\u000a development. The Cornelia de Lange (CdLS) and Roberts\\/SC phocomelia (RBS\\/SC) genetic</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://biology.mcgill.ca/faculty/hekimi/pdf/Publications/metazoan.pdf"><span id="translatedtitle">Metazoan Scc4 Homologs Link <span class="hlt">Sister</span> Chromatid Cohesion to Cell and Axon Migration Guidance</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Vlad C. Seitan; Peter Banks; Steve Laval; Nazia A. Majid; Dale Dorsett; Amer Rana; Jim Smith; Alex Bateman; Sanja Krpic; Arnd Hostert; Robert A. Rollins; Hediye Erdjument-Bromage; Paul Tempst; Claire Y. Benard; Siegfried Hekimi; Sarah F. Newbury; Tom Strachan</p> <p>2006-01-01</p> <p>Saccharomyces cerevisiae Scc2 binds Scc4 to form an essential complex that loads cohesin onto chromosomes. The prevalence of Scc2 orthologs in eukaryotes emphasizes a conserved role in regulating <span class="hlt">sister</span> chromatid cohesion, but homologs of Scc4 have not hitherto been identified outside certain fungi. Some metazoan orthologs of Scc2 were initially identified as developmental gene regulators, such as Drosophila Nipped-B, a</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.springerlink.com/index/c8p6e67jb8ujvdfd.pdf"><span id="translatedtitle">Perceptions of family relationships in adolescents with anorexia nervosa and their unaffected <span class="hlt">sisters</span></span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Andreas Karwautz; Gerald Nobis; Maria Haidvogl; Gudrun Wagner; Andrea Hafferl-Gattermayer; Cicek Wöber-Bingöl; Max H. Friedrich</p> <p>2003-01-01</p> <p>.   The family relationships of patients with anorexia nervosa (AN) have been extensively studied over recent years. However,\\u000a using case-control designs with unrelated controls is subject to various cultural and familial biases. Studying subjective\\u000a differential perceptions of family relationships in <span class="hlt">sister</span>-pairs discordant for the disorder may overcome some of these limitations.\\u000a The aim of the present study was therefore, to</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/34765224"><span id="translatedtitle">Caffeine induces <span class="hlt">sister</span>-chromatid exchanges during the whole S-phase of the cell cycle</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Pablo Hernandez; Crisanto Gutierrez</p> <p>1985-01-01</p> <p>The capacity of caffeine to induce <span class="hlt">sister</span> chromatid exchanges (SCEs) in different cell cycle stages and the proliferation kinetics were studied. Continuous treatment with this xanthine during the whole second cycle significantly increased the baseline SCE frequency. Pulse-treatment experiments showed that the induction of SCEs by caffeine, which was dose-dependent, was restricted to the S-phase of the cell cycle without</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.springerlink.com/index/w2672047215q0150.pdf"><span id="translatedtitle">Imbalanced diversification of two Mediterranean <span class="hlt">sister</span> genera ( Bellis and Bellium , Asteraceae) within the same time frame</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Omar Fiz-Palacios; Virginia Valcarcel</p> <p>2011-01-01</p> <p>The Daisies, Bellis and Bellium, form a monophyletic complex within the core Astereae (Asteraceae). Although most early diverging lineages show an African\\u000a distribution, the core Astereae is today widespread on five continents with the Bellis\\/Bellium complex as the only representative\\u000a in the Mediterranean basin. Molecular clock estimates placed the divergence of Astereae from its <span class="hlt">sister</span> tribe Anthemideae\\u000a in the Oligocene.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://bloodjournal.hematologylibrary.org/cgi/reprint/75/8/1633.pdf"><span id="translatedtitle">Essential Thrombocythemia in Two <span class="hlt">Sisters</span> Originating From Different Stem Cell Levels</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Johannes W. G. Janssen; Bernd R. Anger; Hans G. Drexler; Claw R. Bartram; Hermann Heimpel</p> <p>1990-01-01</p> <p>We report the rare occurrence of essential thrombo- cythemia (ET) in two <span class="hlt">sisters</span>. In one patient, the clinical phenotype of the disease evolved from ET to polycythemia vera (PV) after 4 years of follow-up. Clonal hematopoiesis was established in both cases by X-chromosomal inactiva- tion analysis using a DNA polymorphism of the phospho- glycerate-kinase (PGK) gene. Cell separation studies sug-</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NSDL&redirectUrl=http://www.healthypeople.gov/2020/default.aspx"><span id="translatedtitle"><span class="hlt">Healthy</span> People 2010</span></a></p> <p><a target="_blank" href="http://nsdl.org/nsdl_dds/services/ddsws1-1/service_explorer.jsp">NSDL National Science Digital Library</a></p> <p></p> <p></p> <p>On September 15, Health and Human Services Secretary Donna E. Shalala released "<span class="hlt">Healthy</span> People 2010 Objectives: Draft for Public Comment," which proposes more than 500 national objectives for improving the health of Americans by the year 2010. First began in 1979, <span class="hlt">Healthy</span> People, a national initiative to prevent disease and foster better health, is widely used as a strategic management tool by the Federal Government, States, and local communities. This latest incarnation, which succeeds <span class="hlt">Healthy</span> People 2000, reflects recent advances in science and medicine, as well as emerging public health challenges. The working draft has been placed online specifically to promote public comment and input. Users are encouraged to submit their comments at the site or via surface mail until December 15, 1998. The final report will be issued January 2000.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3072900"><span id="translatedtitle">Oklahoma <span class="hlt">Healthy</span> Homes Initiative</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Khan, Fahad</p> <p>2011-01-01</p> <p>Compelling scientific evidence suggests that a strong association exists between housing-related hazards and the health and safety of their residents. Health, safety, and environmental hazards (such as asthma and allergy triggers), unintentional injury hazards, lead-based paint hazards, and poor indoor air quality are interrelated with substandard housing conditions. This article describes a <span class="hlt">Healthy</span> Homes initiative to address these hazards in a coordinated fashion in the home, rather than taking a categorical approach, even in the presence of multiple hazards. It also provides an overview of Oklahoma's <span class="hlt">Healthy</span> Homes initiative and its pilot project, the Tulsa Safe and <span class="hlt">Healthy</span> Housing Project, which is currently administered in Tulsa in collaboration with Children First, Oklahoma's Nurse-Family Partnership program. This pilot project seeks to open new areas of research that can lead to a greater understanding of environmental health issues related to substandard housing in the United States, which will eventually make homes safer and healthier. PMID:21563709</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4452894"><span id="translatedtitle">Heritability of Parkinson disease in Swedish <span class="hlt">twins</span>: a longitudinal study</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Wirdefeldt, Karin; Gatz, Margaret; Reynolds, Chandra A.; Prescott, Carol A.; Pedersen, Nancy L.</p> <p>2015-01-01</p> <p>Previous <span class="hlt">twin</span> studies report no heritability of Parkinson disease (PD) based on cross-sectional information. Here, we apply a longitudinal design and re-evaluate cross-sectional data in the population-based Swedish <span class="hlt">Twin</span> Registry (STR) using clinical as well as hospital discharge and cause of death diagnoses. In the longitudinal analyses (based on 46,436 individuals), we identified 542 <span class="hlt">twins</span> with PD and 65 <span class="hlt">twins</span> with parkinsonism. Concordance rates for PD were 11% for monozygotic and 4% for same-sexed dizygotic <span class="hlt">twin</span> pairs, with a heritability estimate of 34%. Concordance rates for PD or parkinsonism were 13% for monozygotic and 5% for same-sexed dizygotic <span class="hlt">twin</span> pairs, with a heritability estimate of 40%. In the cross-sectional analyses (based on 49,814 individuals), we identified 287 <span class="hlt">twins</span> with PD and 79 <span class="hlt">twins</span> with parkinsonism. Concordance rates for PD were 4% for monozygotic and same-sexed dizygotic <span class="hlt">twin</span> pairs and zero for opposite-sexed <span class="hlt">twin</span> pairs. Concordance rates for PD or parkinsonism were somewhat higher but the heritability estimate was non-significant. Our longitudinal analyses demonstrate that PD and parkinsonism are modestly heritable. PMID:21482443</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://dspace.mit.edu/handle/1721.1/74512"><span id="translatedtitle">LAB-1 Targets PP1 and Restricts Aurora B Kinase upon Entrance into Meiosis to Promote <span class="hlt">Sister</span> Chromatid Cohesion</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Cheeseman, Iain McPherson</p> <p></p> <p>Successful execution of the meiotic program depends on the timely establishment and removal of <span class="hlt">sister</span> chromatid cohesion. LAB-1 has been proposed to act in the latter by preventing the premature removal of the meiosis-specific ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPA-EIMS&redirectUrl=http://oaspub.epa.gov/eims/eimsapi.dispdetail?deid=39928"><span id="translatedtitle">INDUCTION, ACCUMULATION, AND PERSISTENCE OF <span class="hlt">SISTER</span> CHROMATID EXCHANGES IN WOMEN WITH BREAST CANCER RECEIVING CYCLOPHOSPHAMIDE, ANDRIAMYCIN, AND 5-FLUOROACIL CHEMOTHERAPY</span></a></p> <p><a target="_blank" href="http://oaspub.epa.gov/eims/query.page">EPA Science Inventory</a></p> <p></p> <p></p> <p>The induction, stimulation, and persistence of <span class="hlt">sister</span> chromatid exchanges (SCE's) and high SCE frequency cells (HFC's) was measured in peripheral lymphocytes of women with breast cancer before chemotherapy and on multiple occasions during and after therapy. Chemotherapy consisted...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=CFR&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/CFR-2010-title20-vol1/pdf/CFR-2010-title20-vol1-sec222-40.pdf"><span id="translatedtitle">20 CFR 222.40 - When determinations of relationship are made for parent, grandchild, brother or <span class="hlt">sister</span>.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2010&page.go=Go">Code of Federal Regulations, 2010 CFR</a></p> <p></p> <p>2010-04-01</p> <p>...2010-04-01 false When determinations of relationship are made for parent, grandchild, brother or...REGULATIONS UNDER THE RAILROAD RETIREMENT ACT FAMILY RELATIONSHIPS Relationship as Parent, Grandchild, Brother or <span class="hlt">Sister</span>...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3843825"><span id="translatedtitle">Female rhesus macaques discriminate unfamiliar paternal <span class="hlt">sisters</span> in playback experiments: support for acoustic phenotype matching</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Pfefferle, Dana; Ruiz-Lambides, Angelina V.; Widdig, Anja</p> <p>2014-01-01</p> <p>Widespread evidence exists that when relatives live together, kinship plays a central role in shaping the evolution of social behaviour. Previous studies showed that female rhesus macaques (Macaca mulatta) recognize familiar maternal kin using vocal cues. Recognizing paternal kin might, however, be more difficult as rhesus females mate promiscuously during the possible conception period, most probably concealing paternity. Behavioural observations indicate that semi free-ranging female rhesus macaques prefer to associate with their paternal half-<span class="hlt">sisters</span> in comparison to unrelated females within the same group, particularly when born within the same age cohort. However, the cues and mechanism/s used in paternal kin discrimination remain under debate. Here, we investigated whether female rhesus macaques use the acoustic modality to discriminate between paternal half-<span class="hlt">sisters</span> and non-kin, and tested familiarity and phenotype matching as the underlying mechanisms. We found that test females responded more often to calls of paternal half-<span class="hlt">sisters</span> compared with calls of unrelated females, and that this discrimination ability was independent of the level of familiarity between callers and test females, which provides, to our knowledge, the first evidence for acoustic phenotype matching. Our study strengthens the evidence that female rhesus macaques can recognize their paternal kin, and that vocalizations are used as a cue. PMID:24225452</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23590349"><span id="translatedtitle">Brother-<span class="hlt">sister</span> incest: data from anonymous computer-assisted self interviews.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Stroebel, Sandra S; O'Keefe, Stephen L; Beard, Keith W; Kuo, Shih-Ya; Swindell, Samuel; Stroupe, Walter</p> <p>2013-01-01</p> <p>Retrospective data were entered anonymously by 1,521 adult women using computer-assisted self interview. Forty were classified as victims of brother-<span class="hlt">sister</span> incest, 19 were classified as victims of father-daughter incest, and 232 were classified as victims of sexual abuse by an adult other than their father before reaching 18 years of age. The other 1,230 served as controls. The victims of brother-<span class="hlt">sister</span> incest had significantly more problematic outcomes than controls on many measures (e.g., more likely than the controls to endorse feeling like damaged goods, thinking that they had suffered psychological injury, and having undergone psychological treatment for childhood sexual abuse). However, victims of brother-<span class="hlt">sister</span> incest also had significantly less problematic outcomes than victims of father-daughter incest on some measures (e.g., significantly less likely than the father-daughter incest victims to endorse feeling like damaged goods, thinking that they had suffered psychological injury, and having undergone psychological treatment for childhood sexual abuse). PMID:23590349</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/21245390"><span id="translatedtitle">Roles of vertebrate Smc5 in <span class="hlt">sister</span> chromatid cohesion and homologous recombinational repair.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Stephan, Anna K; Kliszczak, Maciej; Dodson, Helen; Cooley, Carol; Morrison, Ciaran G</p> <p>2011-04-01</p> <p>The structural maintenance of chromosomes (Smc) family members Smc5 and Smc6 are both essential in budding and fission yeasts. Yeast smc5/6 mutants are hypersensitive to DNA damage, and Smc5/6 is recruited to HO-induced double-strand breaks (DSBs), facilitating intersister chromatid recombinational repair. To determine the role of the vertebrate Smc5/6 complex during the normal cell cycle, we generated an Smc5-deficient chicken DT40 cell line using gene targeting. Surprisingly, Smc5(-) cells were viable, although they proliferated more slowly than controls and showed mitotic abnormalities. Smc5-deficient cells were sensitive to methyl methanesulfonate and ionizing radiation (IR) and showed increased chromosome aberration levels upon irradiation. Formation and resolution of Rad51 and gamma-H2AX foci after irradiation were altered in Smc5 mutants, suggesting defects in homologous recombinational (HR) repair of DNA damage. Ku70(-/-) Smc5(-) cells were more sensitive to IR than either single mutant, with Rad54(-/-) Smc5(-) cells being no more sensitive than Rad54(-/-) cells, consistent with an HR function for the vertebrate Smc5/6 complex. Although gene targeting occurred at wild-type levels, recombinational repair of induced double-strand breaks was reduced in Smc5(-) cells. Smc5 loss increased <span class="hlt">sister</span> chromatid exchanges and <span class="hlt">sister</span> chromatid separation distances in mitotic chromosomes. We conclude that Smc5/6 regulates recombinational repair by ensuring appropriate <span class="hlt">sister</span> chromatid cohesion. PMID:21245390</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4282572"><span id="translatedtitle">Functional genomics identifies a requirement of pre-mRNA splicing factors for <span class="hlt">sister</span> chromatid cohesion</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Sundaramoorthy, Sriramkumar; Vázquez-Novelle, María Dolores; Lekomtsev, Sergey; Howell, Michael; Petronczki, Mark</p> <p>2014-01-01</p> <p><span class="hlt">Sister</span> chromatid cohesion mediated by the cohesin complex is essential for chromosome segregation during cell division. Using functional genomic screening, we identify a set of 26 pre-mRNA splicing factors that are required for <span class="hlt">sister</span> chromatid cohesion in human cells. Loss of spliceosome subunits increases the dissociation rate of cohesin from chromatin and abrogates cohesion after DNA replication, ultimately causing mitotic catastrophe. Depletion of splicing factors causes defective processing of the pre-mRNA encoding sororin, a factor required for the stable association of cohesin with chromatin, and an associated reduction of sororin protein level. Expression of an intronless version of sororin and depletion of the cohesin release protein WAPL suppress the cohesion defect in cells lacking splicing factors. We propose that spliceosome components contribute to <span class="hlt">sister</span> chromatid cohesion and mitotic chromosome segregation through splicing of sororin pre-mRNA. Our results highlight the loss of cohesion as an early cellular consequence of compromised splicing. This may have clinical implications because SF3B1, a splicing factor that we identify to be essential for cohesion, is recurrently mutated in chronic lymphocytic leukaemia. PMID:25257310</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li class="active"><span>23</span></li> <li><a href="#" onclick='return showDiv("page_24");'>24</a></li> <li><a href="#" onclick='return showDiv("page_25");'>25</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_23 --> <div id="page_24" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li><a href="#" onclick='return showDiv("page_23");'>23</a></li> <li class="active"><span>24</span></li> <li><a href="#" onclick='return showDiv("page_25");'>25</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="461"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://www.springerlink.com/index/t558517182302847.pdf"><span id="translatedtitle">A pair of monozygotic <span class="hlt">twins</span> discordant for homosexuality: Sex-dimorphic behavior and penile volume responses</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>N. McConaghy; A. Blaszczynski</p> <p>1980-01-01</p> <p>In reports of identical <span class="hlt">twins</span> discordant for homosexuality, the homosexual <span class="hlt">twins</span> showed the effeminacy syndrome in childhood. This has been considered evidence that the homosexuality comes from the <span class="hlt">twin</span> himself. The possibility that the heterosexual <span class="hlt">twin</span> was denying homosexuality has never been excluded. A pair of identical male <span class="hlt">twins</span> discordant for homosexuality are reported. They showed significant differences in their</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/57206125"><span id="translatedtitle">A Genetic Contribution to Dental Caries, Occlusion, and Morphology as Demonstrated by <span class="hlt">Twins</span> Reared Apart</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>J. C. Boraas; L. B. Messer; M. J. Till</p> <p>1988-01-01</p> <p>The heritability of dental characteristics has been systematically studied in animals, human populations, families, and <span class="hlt">twins</span>, but not in <span class="hlt">twins</span> reared apart. Under the assumption that environmental factors are no different for monozygotic <span class="hlt">twins</span> reared apart than for dizygotic <span class="hlt">twins</span> reared apart, the present study measured the genetic variance of several dental characteristics in <span class="hlt">twins</span> reared apart. Ninety-seven subjects (44</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NSDL&redirectUrl=http://sciencecases.lib.buffalo.edu/cs/collection/detail.asp?id=280&case_id=280&.xml"><span id="translatedtitle">A <span class="hlt">Healthy</span> Retirement?</span></a></p> <p><a target="_blank" href="http://nsdl.org/nsdl_dds/services/ddsws1-1/service_explorer.jsp">NSDL National Science Digital Library</a></p> <p>Ann Henninger</p> <p>2003-01-01</p> <p>Nancy has been looking forward to her retirement and a chance to entertain and travel with her husband Jim. But she hasn’t been feeling well. She’s often tired, and recently she’s been experiencing a burning sensation in her lower chest as well as nausea and difficulty breathing. This case was designed for an introductory human biology, anatomy and physiology, or health and wellness course. Its overall purpose is to identify some <span class="hlt">healthy</span> and not-so-<span class="hlt">healthy</span> lifestyle choices and the consequences of those choices. It also serves to demonstrate that men and women suffering from the same disease often experience different symptoms.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/36136202"><span id="translatedtitle">A Central Role for Cohesins in <span class="hlt">Sister</span> Chromatid Cohesion, Formation of Axial Elements, and Recombination during Yeast Meiosis</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Franz Klein; Peter Mahr; Marta Galova; Sara B. C. Buonomo; Christine Michaelis; Knud Nairz; Kim Nasmyth</p> <p>1999-01-01</p> <p>A multisubunit complex, called cohesin, containing Smc1p, Smc3p, Scc1p, and Scc3p, is required for <span class="hlt">sister</span> chromatid cohesion in mitotic cells. We show here that Smc3p and a meiotic version of Scc1p called Rec8p are required for cohesion between <span class="hlt">sister</span> chromatids, for formation of axial elements, for reciprocal recombination, and for preventing hyperresection of double-strand breaks during meiosis. Both Rec8p and</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/36134995"><span id="translatedtitle">Mei-S332, a drosophila protein required for <span class="hlt">sister</span>-chromatid cohesion, can localize to meiotic centromere regions</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Anne W. Kerrebrock; Daniel P. Moore; Jim S. Wu; Terry L. Orr-Weaver</p> <p>1995-01-01</p> <p>Mutations in the Drosophila mei-S332 gene cause premature separation of the <span class="hlt">sister</span> chromatids in late anaphase of meiosis I. Therefore, the mei-S332 protein was postulated to hold the centromere regions of <span class="hlt">sister</span> chromatids together until anaphase II. The mei-S332 gene encodes a novel 44 kDa protein. Mutations in mei-S332 that differentially affect function in males or females map to distinct</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/1985STIN...8617666W"><span id="translatedtitle">Hot Gas Laboratory <span class="hlt">twin</span> nozzle calibration</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Winstanley, A. P.</p> <p>1985-07-01</p> <p>The quality of a <span class="hlt">twin</span> nozzle flow is investigated. The assembly was manufactured to produce high temperature jet related data relevant to VSTOL aircraft when adapted to a wind tunnel hot gas facility. The <span class="hlt">twin</span> nozzles are of an Ni-resistant flake cast iron construction whereas the standard 120 mm diameter single nozzle is a stainless steel, water-cooled fabrication. A calibration rake was used to acquire pressure and temperature data over an array of data points. The tests show that the construction method is satisfactory. The total pressure quality in the exit plane is good. A negative temperature gradient is found along the y axis. The nozzle reference pressure is a good indication of the average total pressure in the exit plane.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/22960611"><span id="translatedtitle"><span class="hlt">Twin</span> screw granulation: steps in granule growth.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Dhenge, Ranjit M; Cartwright, James J; Hounslow, Michael J; Salman, Agba D</p> <p>2012-11-15</p> <p>The present work focuses on the study of the progression of granules in different compartments along the length of screws in a <span class="hlt">twin</span> screw granulator (TSG). The effects of varying powder feed rate; liquid to solid ratio and viscosity of granulation liquid on properties of granules was studied. The bigger granules produced at the start of the process were found to change in terms of size, shape and strength along the screw length at all the conditions investigated. The granules became more spherical and their strength increased along the screw length. Tracer granules were also introduced in order to understand the role of kneading and conveying elements in the TSG. The kneading elements promoted consolidation and breakage while the conveying elements led to coalescence, breakage and some consolidation. The results presented here help to provide a qualitative and quantitative understanding of the <span class="hlt">twin</span> screw granulation process. PMID:22960611</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASA-TRS&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19930090847&hterms=Kempf&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D30%26Ntt%3DKempf"><span id="translatedtitle">Tank Tests of <span class="hlt">Twin</span> Seaplane Floats</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Herrman, H; Kempf, G; Kloess, H</p> <p>1928-01-01</p> <p>The following report contains the most essential data for the hydrodynamic portion of the <span class="hlt">twin</span>-float problem. The following points were successfully investigated: 1) difference between stationary and nonstationary flow; 2) effect of the shape of the step; 3) effect of distance between floats; 4) effect of nose-heavy and tail-heavy moments; 5) effect of the shape of floats; 6) maneuverability.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23303732"><span id="translatedtitle">Cephalothoracopagus janiceps asymmetros <span class="hlt">twins</span>: antenatal sonographic diagnosis.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Sharma, Dinesh; Jhobta, Anupam; Azad, J R; Dhiman, D S; Pandith, Mansa; Sharma, Sanjiv</p> <p>2013-01-01</p> <p>Conjoined <span class="hlt">twins</span> have been the subject of myth and legend since antiquity because of the rarity and peculiarity of their juxtaposition. Fortunately, modern medical technology and concurrent advancements in surgical techniques provide an opportunity for successful separation and hope of a normal independent existence for these unique children. Antenatal sonography allows timely detection of this condition so that further management may be planned. PMID:23303732</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/566016"><span id="translatedtitle">Topologically significant dermatoglyphic patterns in <span class="hlt">twins</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Loesch, D; Swiatkowska, Z</p> <p>1977-01-01</p> <p>A total of 58 dermatoglyphic characters, consisting of topologically significant pattern elements, i.e., loops and triradii, on palms, soles and fingertips, were tested in a sample of 110 MZ and 111 like-sexed DZ <span class="hlt">twin</span> pairs. The analysis included homolateral, heterolateral and bilateral concordance rates, the derived Hc coefficient, coefficients of the within-pair association, phi, derived chi2 intraclass correlation coefficients and heritability estimates based on variances (h2) and correlations (Hr), and the variance ratio F. A considerable difference was found in respect of "heritability" values between palmar and sole patterns, in that they are the highest for sole loops and triradii and the lowest for most palmar loops. These data are compared with the h2 values obtained from family correlations. The difficulties in the interpretation of "heritability" estimates based on the material of <span class="hlt">twins</span> are pointed out and particular attention is drawn to a possibility of the additional bias in <span class="hlt">twin</span> studies related to a degree of symmetry of the characters investigated. PMID:566016</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NIH-MEDLINEPLUS&redirectUrl=http://www.niams.nih.gov/Health_Info/Kids/healthy_skin.asp"><span id="translatedtitle"><span class="hlt">Healthy</span> Skin Matters</span></a></p> <p><a target="_blank" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p></p> <p></p> <p>... or itchy, try a moisturizing cream or lotion. Enjoy being in the sun—but protect your skin Your skin produces vitamin D when it is exposed to sunshine. Vitamin D helps keep your bones and other body systems <span class="hlt">healthy</span>. However, too much sun can damage your skin and increase your ...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/38610163"><span id="translatedtitle">Defining the <span class="hlt">healthy</span> \\</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>Egija Zaura; Bart JF Keijser; Susan M Huse; Wim Crielaard</p> <p>2009-01-01</p> <p>BACKGROUND: Most studies examining the commensal human oral microbiome are focused on disease or are limited in methodology. In order to diagnose and treat diseases at an early and reversible stage an in-depth definition of health is indispensible. The aim of this study therefore was to define the <span class="hlt">healthy</span> oral microbiome using recent advances in sequencing technology (454 pyrosequencing). RESULTS:</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NSDL&redirectUrl=http://www.healthlit.org/scienceInside/eb_healthybabies.htm"><span id="translatedtitle">Having <span class="hlt">Healthy</span> Babies</span></a></p> <p><a target="_blank" href="http://nsdl.org/nsdl_dds/services/ddsws1-1/service_explorer.jsp">NSDL National Science Digital Library</a></p> <p>American Association for the Advancement of Science (American Association for the Advancement of Science; )</p> <p>2003-01-01</p> <p>The Science Inside: Having <span class="hlt">Healthy</span> BabiesThis booklet summarizes what health professionals know about <span class="hlt">healthy</span> babies and mothers. It shows women how to avoid or reduce the health risks of pregnancy, provides information about the development of <span class="hlt">healthy</span> infants and toddlers, and outlines the steps of pregnancy from conception to labor and delivery to postnatal care. Having <span class="hlt">Healthy</span> Babies directs readers to more sources of information and to the latest scientific research.The Science Inside e-book series is intended to be a bridge between the consumer health brochure and the scientific paper, the booklets in this series focus on the science that is inside of, or behind, the disease its cause, its possible cure, its treatment, promising research, and so on. These booklets are designed to appeal to people who have not had the opportunity to study the science and to understand why they may have been given some of the advice that they have been given through some of the more consumer-oriented materials.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASA-TRS&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20010085802&hterms=Diabetes&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D30%26Ntt%3DDiabetes"><span id="translatedtitle"><span class="hlt">Healthy</span> People 2010</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Angotti, Catherine M.</p> <p>2001-01-01</p> <p>Major <span class="hlt">Healthy</span> People (HP) 2000 goals closely tied to prevention were not met nationally: physical activity did not improve; evidence that it actually decreased; obesity did not decrease but instead increased in all groups, actually doubling in children; and incidence of type 2 diabetes did not decrease, but instead evidence showed that it increased in all age groups.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/2009JPhD...42u5410L"><span id="translatedtitle">EBSD characterization of <span class="hlt">twinned</span> copper using pulsed electrodeposition</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Lui, Guan-Tai; Chen, Delphic; Kuo, Jui-Chao</p> <p>2009-11-01</p> <p>We investigated the influence of pulse current density on a crystallographic microstructure of <span class="hlt">twin</span> Cu films through x-ray diffraction and electron backscatter diffraction (EBSD). With an increase in the pulse current density, the intensity of the preferred orientation (texture), grain size and the fraction of the <span class="hlt">twins</span> decreased. The high-density <span class="hlt">twin</span> copper films, including the nanotwins observed from the orientation image maps, were achieved using a pulsed electrodeposition technique at the current density of 0.5 A cm-2, with an average grain size of 818 nm. The crystallographic microstructure of the high-density <span class="hlt">twin</span> copper films shows a lang0 1 1rang preferred orientation associated with the 60°lang1 1 1rang <span class="hlt">twin</span> having a {1 1 1} <span class="hlt">twin</span> plane.</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/24688852"><span id="translatedtitle">Occurrence of <span class="hlt">twin</span> embryos in the eastern bluebird.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Bailey, Robyn L; Clark, Gerald E</p> <p>2014-01-01</p> <p>We report the first record of presumed <span class="hlt">twinning</span> in eastern bluebird (Sialia sialis) and provide a review of previously reported <span class="hlt">twinning</span> events in wild birds. A nest containing <span class="hlt">twin</span> eastern bluebird nestlings was monitored in 2013 in central Pennsylvania and reported to the Cornell Lab of Ornithology's NestWatch program, a national program where volunteers submit data on wild nesting birds. A presumed double-yolked egg of a free-living eastern bluebird pair hatched successfully, and <span class="hlt">twin</span> nestlings lived for 11 days in a nest box shared by three siblings. Due to the rarity of <span class="hlt">twinning</span> in wild birds, engaging the public to monitor large numbers of nests is the most likely approach to documenting <span class="hlt">twinning</span> in wild populations, and citizen science provides the infrastructure for individuals to share observations. PMID:24688852</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/24735810"><span id="translatedtitle">[Vaginal delivery safe for <span class="hlt">twins</span> starting at 32 weeks?].</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Goossens, Simone M T A; Mol, Ben W J; Nijhuis, Jan G; Roumen, Frans J M E</p> <p>2014-01-01</p> <p>Compared with other countries, the elective caesarean section rate for <span class="hlt">twins</span> is relatively low in the Netherlands. Worldwide, there is an increasing trend toward performing more elective caesarean sections for women with a <span class="hlt">twin</span> pregnancy at term, be it for <span class="hlt">twins</span> with the first child in breech or in cephalic presentation. The results of the '<span class="hlt">Twin</span> Birth Study' indicate that a planned caesarean section does not improve outcome as compared with planned vaginal birth for <span class="hlt">twins</span> with the first child in cephalic position beyond 32 weeks gestation. During the study, an experienced obstetrician was present during planned vaginal delivery and there was a possibility of performing a secondary caesarean section within 30 minutes. This study provides an additional argument to guarantee the aforementioned conditions in all hospitals where women plan to deliver their <span class="hlt">twins</span> vaginally. However, the definition of an experienced obstetrician is subject to debate. PMID:24735810</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3961165"><span id="translatedtitle">Occurrence of <span class="hlt">twin</span> embryos in the eastern bluebird</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Clark, Gerald E.</p> <p>2014-01-01</p> <p>We report the first record of presumed <span class="hlt">twinning</span> in eastern bluebird (Sialia sialis) and provide a review of previously reported <span class="hlt">twinning</span> events in wild birds. A nest containing <span class="hlt">twin</span> eastern bluebird nestlings was monitored in 2013 in central Pennsylvania and reported to the Cornell Lab of Ornithology’s NestWatch program, a national program where volunteers submit data on wild nesting birds. A presumed double-yolked egg of a free-living eastern bluebird pair hatched successfully, and <span class="hlt">twin</span> nestlings lived for 11 days in a nest box shared by three siblings. Due to the rarity of <span class="hlt">twinning</span> in wild birds, engaging the public to monitor large numbers of nests is the most likely approach to documenting <span class="hlt">twinning</span> in wild populations, and citizen science provides the infrastructure for individuals to share observations. PMID:24688852</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/56554251"><span id="translatedtitle">Does dieting make you fat? A <span class="hlt">twin</span> study</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>K H Pietiläinen; S E Saarni; J Kaprio; A Rissanen</p> <p>2012-01-01</p> <p>Objective:To investigate whether the paradoxical weight gain associated with dieting is better related to genetic propensity to weight gain than to the weight loss episodes themselves.Subjects:Subjects included 4129 individual <span class="hlt">twins</span> from the population-based Finn<span class="hlt">Twin</span>16 study (90% of <span class="hlt">twins</span> born in Finland 1975–1979). Weight and height were obtained from longitudinal surveys at 16, 17, 18 and 25 years, and number of</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=SCIGOV-MAS&redirectUrl=http://academic.research.microsoft.com/Publication/38326585"><span id="translatedtitle">British Isles survey of multiple sclerosis in <span class="hlt">twins</span>: MRI</span></a></p> <p><a target="_blank" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p>J W Thorpe; C J Mumford; D A Compston; B E Kendall; D G MacManus; W I McDonald; D H Miller</p> <p>1994-01-01</p> <p>64\\/105 subjects who have a <span class="hlt">twin</span> with multiple sclerosis included in a study of clinical concordance also underwent MRI of the brain. 8\\/23 monozygotic and 1\\/41 dizygotic co-<span class="hlt">twins</span> from this subgroup were clinically concordant of whom 8\\/9 had MRI appearances typical of multiple sclerosis. Of the 48 clinically discordant <span class="hlt">twins</span> aged less than 60, abnormalities on MRI were detected in</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li><a href="#" onclick='return showDiv("page_23");'>23</a></li> <li class="active"><span>24</span></li> <li><a href="#" onclick='return showDiv("page_25");'>25</a></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_24 --> <div id="page_25" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_21");'>21</a></li> <li><a href="#" onclick='return showDiv("page_22");'>22</a></li> <li><a href="#" onclick='return showDiv("page_23");'>23</a></li> <li><a href="#" onclick='return showDiv("page_24");'>24</a></li> <li class="active"><span>25</span></li> <li><a href="#" onclick='return showDiv("page_25");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="481"> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://oaktrust.library.tamu.edu//handle/1969.1/ETD-TAMU-1982-THESIS-K49"><span id="translatedtitle">Three dimensional study of <span class="hlt">twin</span>-jet shielding </span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Kim, Changho</p> <p>1982-01-01</p> <p>: Mechanical Engineering THREE DIMENSIO'NAL STUDY OF <span class="hlt">TWIN</span>-JET SHIELDING A Thesis bv CHANGHO KIM Approved as to style and content by ( Chairman of Committee ) ( Hea of Department ) ( Member ) ( Member ) May 1982 ABSTRACT Three Dimensional Study... aircraft noise level, but also indicates the possibi- lity of jet engine installation as a means of aircraft noise control. This <span class="hlt">twin</span> Jet shielding has 'been inve tigated by various I authors. Ifantola investigated experinental1. y both <span class="hlt">twin</span> round...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=NASAADS&redirectUrl=http://adsabs.harvard.edu/abs/2015A%26A...574A.124D"><span id="translatedtitle">Spectroscopic study of solar <span class="hlt">twins</span> and analogues</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Datson, Juliet; Flynn, Chris; Portinari, Laura</p> <p>2015-02-01</p> <p>Context. Many large stellar surveys have been and are still being carried out, providing huge amounts of data, for which stellar physical parameters will be derived. Solar <span class="hlt">twins</span> and analogues provide a means to test the calibration of these stellar catalogues because the Sun is the best-studied star and provides precise fundamental parameters. Solar <span class="hlt">twins</span> should be centred on the solar values. Aims: This spectroscopic study of solar analogues selected from the Geneva-Copenhagen Survey (GCS) at a resolution of 48 000 provides effective temperatures and metallicities for these stars. We test whether our spectroscopic parameters, as well as the previous photometric calibrations, are properly centred on the Sun. In addition, we search for more solar <span class="hlt">twins</span> in our sample. Methods: The methods used in this work are based on literature methods for solar <span class="hlt">twin</span> searches and on methods we developed in previous work to distinguish the metallicity-temperature degeneracies in the differential comparison of spectra of solar analogues versus a reference solar reflection spectrum. Results: We derive spectroscopic parameters for 148 solar analogues (about 70 are new entries to the literature) and verify with a-posteriori differential tests that our values are well-centred on the solar values. We use our dataset to assess the two alternative calibrations of the GCS parameters; our methods favour the latest revision. We show that the choice of spectral line list or the choice of asteroid or time of observation does not affect the results. We also identify seven solar <span class="hlt">twins</span> in our sample, three of which are published here for the first time. Conclusions: Our methods provide an independent means to differentially test the calibration of stellar catalogues around the values of a well-known benchmark star, which makes our work interesting for calibration tests of upcoming Galactic surveys. Based on observations made with ESO Telescopes at the La Silla Observatory under programme ID 077.D-0525 and 090.D-0133.Table 1 is also available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/574/A124Full Table 5 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/574/A124</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/2347836"><span id="translatedtitle"><span class="hlt">Twin</span> temperament during the transition from infancy to early childhood.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Cyphers, L H; Phillips, K; Fulker, D W; Mrazek, D A</p> <p>1990-05-01</p> <p>A multiple-regression model for the analysis of <span class="hlt">twin</span> data in which one <span class="hlt">twin</span>'s score is predicted from that of its co-<span class="hlt">twin</span>, the coefficient of relationship, and the interaction term provides direct estimates of heritability (h2) and the proportion of variance due to shared environmental influences (c2). Several multiple-regression models were fitted to parental ratings of infant and toddler temperament for 306 pairs of <span class="hlt">twins</span>. High estimates of h2 were found for eight of the nine temperament scales, and three scales showed significant effects of c2. No differential heritability was found between males and females across the infant and toddler years. PMID:2347836</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/6209699"><span id="translatedtitle">Maternal serum alpha fetoprotein in monozygotic and dizygotic <span class="hlt">twin</span> pregnancies.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Thom, H; Buckland, C M; Campbell, A G; Thompson, B; Farr, V</p> <p>1984-01-01</p> <p>Maternal serum alpha-fetoprotein (MSAFP) values in the second trimester have been related to pregnancy outcome for 100 normal <span class="hlt">twin</span> pairs, 42 monozygous (MZ) and 58 dizygous (DZ), liveborn after 28 weeks gestation. The median MSAFP value was 1.9 multiples of the median value (MOM) for uncomplicated singleton pregnancies. Both very low and very high MSAFP values were associated with <span class="hlt">twins</span> of low birthweight. MSAFP values were higher in MZ than DZ <span class="hlt">twin</span> pregnancies particularly those with dizygotes of like-sex. This effect was even more marked when only dichorionic like-sex <span class="hlt">twin</span> pairs were compared. PMID:6209699</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/17254397"><span id="translatedtitle">The Australian <span class="hlt">Twin</span> ADHD Project: current status and future directions.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Bennett, Kellie S; Hay, David A; Piek, Jan; Pearsall-Jones, Jillian; Levy, Florence; Martin, Neilson</p> <p>2006-12-01</p> <p>This article describes the Australian <span class="hlt">Twin</span> Attention-deficit/hyperactivity disorder (ADHD) Project (ATAP), the results of research conducted using this database and plans for future studies. Information has been actively collected from Australian families with <span class="hlt">twin</span> children since 1991 for the ATAP database. The value of assessing siblings as well as <span class="hlt">twins</span> is emphasized. Much work has gone into continuing the involvement of families in the study though this does become more difficult when <span class="hlt">twins</span> reach maturity. The main focus of the project is ADHD in children and adolescents plus comorbid conditions including conduct disorder, oppositional defiant disorder, and generalized anxiety disorder. A major challenge has been how to retain continuity in the assessments, while at the same time covering changes in psychiatric classification, such as the move to Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV; American Psychiatric Association, 1994). Changes in the scale can affect the reports of <span class="hlt">twin</span> similarity. Over the years, these <span class="hlt">twins</span> have become part of other <span class="hlt">twin</span> studies and future plans include linking different <span class="hlt">twin</span> databases to investigate the relationships between childhood behavior and adult conditions. Recruitment, assessment and retention of <span class="hlt">twin</span> families require a major commitment but create a significant resource for collaboration in areas outside the original aim. PMID:17254397</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/24572312"><span id="translatedtitle">Effects of merohedric <span class="hlt">twinning</span> on the diffraction pattern.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Nespolo, Massimo; Ferraris, Giovanni; Souvignier, Bernd</p> <p>2014-03-01</p> <p>In merohedric <span class="hlt">twinning</span>, the lattices of the individuals are perfectly overlapped and the presence of <span class="hlt">twinning</span> is not easily detected from the diffraction pattern, especially in the case of inversion <span class="hlt">twinning</span> (class I). In general, the investigator has to consider three possible structural models: a crystal with space-group type H and point group P, either untwinned (H model) or <span class="hlt">twinned</span> through an operation t in vector space (t-H model), and an untwinned crystal with space group G whose point group P' is obtained as an extension of P through the <span class="hlt">twin</span> operation t (G model). In 71 cases, consideration of the reflection conditions may directly rule out the G model; in seven other cases the reflection conditions suggest a space group which does not correspond to the extension of H by the <span class="hlt">twin</span> operation and the structure solution or at least the refinement will fail. When the <span class="hlt">twin</span> operation belongs to a different crystal family (class IIB <span class="hlt">twinning</span>: the crystal has a specialized metric), the presence of <span class="hlt">twinning</span> can often be recognized by the peculiar effect it has on the reflection conditions. PMID:24572312</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1922989"><span id="translatedtitle">The Importance of Monitoring During Operations on Conjoined <span class="hlt">Twins</span></span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Simpson, J. S.; Pelton, D. A.; Swyer, P. R.</p> <p>1967-01-01</p> <p>Besides complete and careful preoperative investigation of thoracopagus conjoined <span class="hlt">twins</span>, monitoring of the various parameters, such as arterial blood pressure, central venous pressure, blood pH, and temperature, are most essential for accurate blood replacement, maintenance of normal body chemistry and thermoregulation. Equally important is continued monitoring in the postoperative period when assisted ventilation may be required as well. <span class="hlt">Twin</span> “A” returned from the operating room in excellent condition, breathing spontaneously through an endotracheal tube. <span class="hlt">Twin</span> “B” returned on positive-pressure-assisted ventilation; this was to prove a poor prognostic sign as this <span class="hlt">twin</span> died eight hours postoperatively. ImagesFig. 2 PMID:6025723</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=EPRINT&redirectUrl=http://www.dspace.cam.ac.uk/handle/1810/248323"><span id="translatedtitle">{1124} Deformation <span class="hlt">Twinning</span> in Commercial Purity Titanium at Room Temperature</span></a></p> <p><a target="_blank" href="http://www.osti.gov/eprints/">E-print Network</a></p> <p>Lainé, S. J.; Knowles, K. M.</p> <p>2015-01-01</p> <p>during the deformation of titanium alloys [1,2]. There are four commonly observed deformation <span class="hlt">twinning</span> modes in titanium: 1012 , 1121 and 1122 , which occur at room temperature, and {1011} which is reported above 400 °C. Experimental evidence... , as for the conjugate Type I and Type II <span class="hlt">twinning</span> modes in ?-uranium [24,25]. However, the statement by both Yoo [5] and Christian and Mahajan [6] that 1124 <span class="hlt">twins</span> are ‘tension’ <span class="hlt">twins</span>, i.e., their formation causes an extension along the c- axis, is incorrect...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-06-22/pdf/2012-15331.pdf"><span id="translatedtitle">77 FR 37705 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2012-06-22</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior, Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...below. DATES: On July 10, 2012, the <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2010-09-30/pdf/2010-24481.pdf"><span id="translatedtitle">75 FR 60477 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2010-09-30</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...17, 2010; and December 1, 2010. The <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-03-15/pdf/2012-6252.pdf"><span id="translatedtitle">77 FR 15388 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2012-03-15</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior, Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...below. DATES: On March 28, 2012, the <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-05-15/pdf/2012-11716.pdf"><span id="translatedtitle">77 FR 28619 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2012-05-15</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior, Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...below. DATES: On June 5, 2012, the <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2010-08-11/pdf/2010-19770.pdf"><span id="translatedtitle">75 FR 48723 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2010-08-11</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...below. DATES: On September 9, 2010, the <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2013-09-12/pdf/2013-22183.pdf"><span id="translatedtitle">78 FR 56242 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2013-09-12</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior, Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...DATES: On September 26, 2013, the <span class="hlt">Twin</span> Falls District RAC members will meet...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2013-11-14/pdf/2013-27224.pdf"><span id="translatedtitle">78 FR 68467 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, ID</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2013-11-14</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior, Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...On November 26 and December 10, the <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-07-24/pdf/2012-17992.pdf"><span id="translatedtitle">77 FR 43353 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2012-07-24</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior, Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...below. DATES: On August 16, 2012, the <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-08-13/pdf/2012-19794.pdf"><span id="translatedtitle">77 FR 48168 - Call for Nominations for the <span class="hlt">Twin</span> Falls District Resource Advisory Council</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2012-08-13</p> <p>...241A.00] Call for Nominations for the <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior. ACTION: Call for Nominations, <span class="hlt">Twin</span> Falls District Resource Advisory Council...nominations to fill one position on the <span class="hlt">Twin</span> Falls District Resource Advisory...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=FEDREG&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2010-12-23/pdf/2010-32323.pdf"><span id="translatedtitle">75 FR 80839 - Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council, Idaho</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2010-12-23</p> <p>...241A.00] Notice of Public Meetings, <span class="hlt">Twin</span> Falls District Resource Advisory Council...Interior, Bureau of Land Management (BLM) <span class="hlt">Twin</span> Falls District Resource Advisory Council...26, 2011. On January 12, 2011, the <span class="hlt">Twin</span> Falls District RAC subcommittee...</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PUBMED&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/22008819"><span id="translatedtitle">Horizontal transmission of a human rotavirus vaccine strain--a randomized, placebo-controlled study in <span class="hlt">twins</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Rivera, Luis; Peña, Lourdes Mendez; Stainier, Isabelle; Gillard, Paul; Cheuvart, Brigitte; Smolenov, Igor; Ortega-Barria, Eduardo; Han, Htay Htay</p> <p>2011-11-28</p> <p>Transmission of excreted vaccine-derived infectious virus from vaccinated to unvaccinated individuals is possible within close contacts. This randomized (1:1), double-blind study evaluated the potential for transmission of human rotavirus vaccine strain, HRV (Rotarix™) from vaccine recipients to unvaccinated close contacts (<span class="hlt">twins</span>). 100 pairs of <span class="hlt">healthy</span> <span class="hlt">twins</span> aged 6-14 weeks at the time of Dose 1 of HRV vaccine/placebo were enrolled and one randomly selected <span class="hlt">twin</span> from each pair received two vaccine doses and the other received placebo doses (at 2 and 4 months of age). Presence of vaccine strain in the stool samples of placebo recipients was an indicator of transmission. Serial stool samples were tested for rotavirus using ELISA at pre-determined time points; rotavirus positive stool samples were tested with RT-PCR and reverse hybridization assay to identify G1P[8] vaccine strain. If G1P[8] vaccine strain was detected, the complete genome was sequenced to assess the similarity between viral isolates. Immunogenicity and safety of HRV vaccine in transmission cases was assessed. 15 transmission cases were reported in 80 evaluable <span class="hlt">twins</span> who received placebo and the transmission rate was 18.8% (95% CI: 10.9-29.0%). None of the transmission cases was associated with gastroenteritis symptoms. Anti-rotavirus IgA seroconversion was 62.5% (95% CI: 51.0-73.1%) (HRV) and 21.3% (95% CI: 12.9-31.8%) (placebo) 7-weeks post-Dose 2; seroconversion in transmission cases was 26.7% (95% CI: 7.8-55.1%). Genetic variations or amino acid substitutions in transmission cases were similar to that seen in corresponding vaccine recipients. Transmission of HRV vaccine strain to unvaccinated <span class="hlt">twins</span> living in close contact occurred, however, they were not associated with increased of gastroenteritis. Whether transmission leads to indirect protection among unvaccinated individuals remains unknown at this stage. PMID:22008819</p> </li> <li> <p><a target="resultTitleLink" href="http://www.science.gov/scigov/desktop/en/ostiblue/service/link/track?type=RESULT&searchId=topic-pages&collectionCode=PMC&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3653526"><span id="translatedtitle">Acute Fetal Anemia Diagnosed by Middle Cerebral Artery Doppler Velocimetry in Stage V <span class="hlt">Twin–Twin</span> Transfusion Syndrome</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Salcedo, Jennifer; Friedrich, Esther; Wing, Deborah A.; Porto, Manuel</p> <p>2011-01-01</p> <p>In stage V <span class="hlt">twin–twin</span> transfusion syndrome (TTTS), up to 50% of surviving <span class="hlt">twins</span> die or experience permanent disabilities, likely due to acute intertwin hemorrhage resulting in sudden severe anemia of the survivor. Although fetal middle cerebral artery (MCA) Doppler studies demonstrate strong correlation with fetal hemoglobin values, acute hemorrhagic events are more difficult to diagnose, and optimal timing of delivery of the survivor poses an obstetric dilemma. We report a case of newly diagnosed stage V TTTS at 28 weeks gestation, complicated by acute severe anemia diagnosed by significantly abnormal fetal MCA Doppler studies. The anemic <span class="hlt">twin</span> was urgently delivered and is doing well without significant sequelae. 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