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Nancy L Segal
This article begins with the story of a 51-year-old Los Angeles, California man, Justin Goldberg, whose daughter caught a glimpse of his striking look-alike at a popular market. Many people have so-called doppelgängers, but this occurrence is especially intriguing - the individual in question, born in New York City in the mid-1960s to an unwed mother, was an adoptee placed by the Louise Wise Adoption Agency. This agency, under the guidance of a prominent psychiatrist, decided to place twins in separate homes...
March 15, 2018: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
Natalie A Silverton, David A Bull, Candice K Morrissey
Aortic root abscess is a complication of aortic valve endocarditis that is associated with a high morbidity and mortality. The diagnosis usually is made with transesophageal echocardiography, which is highly sensitive and specific for the disease. We present a case of suspected aortic root abscess 1 week after mechanical aortic valve replacement for native valve endocarditis. The diagnosis was made by the use of transesophageal echocardiography but surgical inspection revealed that the paravalvular fluid collection was excessive surgical adhesive...
May 3, 2017: A & A Case Reports
Ryan McKay, Nicholas Furl
No abstract text is available yet for this article.
February 2017: Brain: a Journal of Neurology
Richard C Laughlin, Robert C Alaniz
Characterization of host microbial interactions typically occurs on the cellular or protein level. Recently, a more thorough and accurate appreciation of cellular interactions has come into better focus with improved understanding of membrane vesicles (OMV). While OMVs are documented primarily in Gram-negative bacteria, certain Gram-positive species generate these structures, despite the obvious physical limitations of the cell envelope. Here, we briefly review the current understanding of OMVs in content and function, their role in pathogenesis, and the consequences of somatic cell gene expression on these events...
September 2, 2016: Gut Microbes
Levi Waldron, Markus Riester, Marcel Ramos, Giovanni Parmigiani, Michael Birrer
Whole-genome analysis of cancer specimens is commonplace, and investigators frequently share or re-use specimens in later studies. Duplicate expression profiles in public databases will impact re-analysis if left undetected, a so-called "doppelgänger" effect. We propose a method that should be routine practice to accurately match duplicate cancer transcriptomes when nucleotide-level sequence data are unavailable, even for samples profiled by different microarray technologies or by both microarray and RNA sequencing...
November 2016: Journal of the National Cancer Institute
Anton O Oliynyk, Taylor D Sparks, Michael W Gaultois, Leila Ghadbeigi, Arthur Mar
Attempts to prepare Gd12Co5Bi, a member of the rare-earth (RE) intermetallics RE12Co5Bi, which were identified by a machine-learning recommendation engine as potential candidates for thermoelectric materials, led instead to formation of the new compound Gd12Co5.3Bi with a very similar composition. Phase equilibria near the Gd-rich corner of the Gd-Co-Bi phase diagram were elucidated by both lab-based and variable-temperature synchrotron powder X-ray diffraction, suggesting that Gd12Co5.3Bi and Gd12Co5Bi are distinct phases...
July 5, 2016: Inorganic Chemistry
Ahmed Naiem, Ahmed Al-Harthy, Ibrahim Abdelhady, Rashid Al-Sukaiti, Edwin Stephen, Khalifa N Al-Wahaibi
No abstract text is available yet for this article.
March 2016: Oman Medical Journal
Christelle Harly, Avinash Bhandoola
No abstract text is available yet for this article.
2016: Cell Cycle
Carly DeHenau, Mark W Becker, Nora M Bello, Sichang Liu, Laura Bix
Tallman lettering, capitalizing the dissimilar portions of easily confused drug names, is one strategy for reducing medication errors. We assessed the efficacy of Tallman lettering in a visually complex environment using a change detection method with healthcare providers and laypeople. In addition, the effect of familiarity with the drug name was assessed using a subset of responses collected from healthcare providers. Both healthcare providers and laypeople detected changes in confusable pairs of drug names more often (P < 0...
January 2016: Applied Ergonomics
Preeti Dhawan, Vivek Gaurav, Aditi Singh
Abnormalities in tooth morphology and number are not uncommon. However, an exact clone of a normal tooth is a recondite clinical finding. Presence of supplementary teeth is mostly noticed in maxillary anterior, molar or premolar region, followed by mandibular premolar region in descending order of its site of occurrence. Supplemental tooth in mandibular anterior has a low prevalence of 0.01%. This paper reports one such rare case of nonsyndromic incisive jumeaux in mandibular anterior region during mixed dentition period...
April 2015: Indian Journal of Dentistry
Margaret Cases, Charles Leduc, Patricia L Farmer, Susan E Richardson, Dick E Zoutman
Herpes simplex virus has protean manifestations and is an important cause of morbidity in the immunocompromised host. We report a case of recurrent lymphadenopathy and rash in a patient with chronic lymphocytic leukemia. The elusive clinical diagnosis eventually required core biopsy of a lymph node with immunohistochemistry and confirmation by polymerase chain reaction. This case illustrates the challenging clinical and laboratory diagnosis of herpes simplex virus lymphadenitis and the need to maintain a high index of suspicion for infection when treating an immunocompromised patient with unusual and/or persistent symptoms...
2014: Internal Medicine
C M Thompson, J P Carlo, R Flacau, T Aharen, I A Leahy, J R Pollichemi, T J S Munsie, T Medina, G M Luke, J Munevar, S Cheung, T Goko, Y J Uemura, J E Greedan
The B-site ordered double perovskite Ba2CaOsO6 was studied by dc magnetic susceptibility, powder neutron diffraction and muon spin relaxation methods. The lattice parameter is a = 8.3619(6) Å at 280 K and cubic symmetry [Formula: see text] is retained to 3.5 K with a = 8.3462(7) Å. Curie-Weiss susceptibility behaviour is observed for T > 100 K and the derived constants are C = 0.3361(3) emu K mol(-1) and ΘCW = -156.2(3) K, in excellent agreement with literature values. This Curie constant is much smaller than the spin-only value of 1...
July 30, 2014: Journal of Physics. Condensed Matter: An Institute of Physics Journal
Tim P Jürgens, Laura H Schulte, Arne May
OBJECTIVES: The aim of the study was to determine whether various transient sensory and neuropsychological symptoms (SNS) were associated with migraine using a custom questionnaire. METHODS: In this hypothesis-generating case-control study, the frequencies of transient SNS in 219 patients with migraine (149 without aura and 70 with aura) were compared with 161 age- and sex-matched healthy controls using a custom questionnaire. Patients from a tertiary academic headache center in Hamburg were contacted by regular mail...
April 22, 2014: Neurology
Michael S Caterino, Alexey K Tishechkin
We describe the following 8 new genera and 23 new species of Neotropical Exosternini. Conocassis gen. n. (Conocassis minor sp. n. [type species], Conocassis dromedaria sp. n., Conocassis trisulcata sp. n., and Conocassis invaginata sp. n.), Enkyosoma gen. n. (Enkyosoma rockwelli sp. n.), Pluricosta gen. n. (Pluricosta onthophiloides sp. n.), Pyxister gen. n. (Pyxister devorator sp. n. [type species] and Pyxister labralis sp. n.), Chapischema gen. n. (Chapischema doppelganger sp. n.), Scaptorus gen. n. (Scaptorus pyramus sp...
2014: ZooKeys
Jagna Chmielowska-Bąk, Karolina Izbiańska, Joanna Deckert
Cadmium is a toxic heavy metal which can cause numerous alterations in cell functioning. Exposure to cadmium leads to generation of reactive oxygen species, disorders in membrane structure and functioning, inhibition of respiration, disturbances in ion homeostasis, perturbations in cell division, and initiation of apoptosis and necrosis. This heavy metal is considered a carcinogen by the Agency for Toxic Substances and Disease Registry. At least some of the described toxic effects could result from the ability of cadmium to mimic other divalent ions and alert signal transduction networks...
2013: Acta Biochimica Polonica
Bettina von Helversen, Stefan M Herzog, Jörg Rieskamp
Judging other people is a common and important task. Every day professionals make decisions that affect the lives of other people when they diagnose medical conditions, grant parole, or hire new employees. To prevent discrimination, professional standards require that decision makers render accurate and unbiased judgments solely based on relevant information. Facial similarity to previously encountered persons can be a potential source of bias. Psychological research suggests that people only rely on similarity-based judgment strategies if the provided information does not allow them to make accurate rule-based judgments...
January 1, 2014: Experimental Psychology
Olu Jenzen
This article is concerned with a repositioning of popular culture images and narratives that are, and have been, highly unpopular among queer audiences. This involves a re-engagement with the visual representation of lesbian lovers as doubles, ubiquitous in popular culture. It argues that by positioning the trope of the lesbian doppelgangers as it appears in popular culture on a continuum of visual representations of sameness and likeness that also includes feminist and queer art its qualities of radical or "absolute" narcissism are brought to the fore to be enjoyed as a subversive statement of highly self-referencing, auto-erotic, and self-sufficient economy of desire...
2013: Journal of Lesbian Studies
Sadeq Rahimi
I am my own twin, Always with me, same as me, and always watching me! From interview with a psychotic patient Every man carries with him through life a mirror, as unique and impossible to get rid of as his shadow W.H. Auden, 1989, p.93 I cannot urge you too strongly to a meditation on optics. Jacques Lacan, 1991, p.76 This paper outlines the basic arguments for a reading of the notion of the uncanny that draws on direct and metaphorical significances of the ocular in the development of human ego. It is argued that a specular-oriented reading of the uncanny as made possible through Lacan's model for ego development introduces a significant analytic device capable of explaining diverse features of the uncanny experience that escaped the traditional phallic/castration-based reading...
June 2013: International Journal of Psycho-analysis
Sebastian Dieguez
The topic of the double is a hallmark of romantic, gothic, and fantastic literature. In the guise of the second self, the alter ego or the doppelgänger, fictional doubles have long fascinated critics, clinicians, and scientists. We review classical approaches to the theme and propose a broad clinical and neurocognitive framework from which to examine major instances of the motif in literature. Based on neurological disorders of the bodily self (including unilateral and whole body illusions and duplications), as well as related experimental approaches, we provide examples of literary depictions of bodily fragmentation and splitting; autoscopic hallucinations; the classical doppelgänger, second self, or heautoscopic double; the feeling of a presence; out-of-body experiences; and so-called near-death experiences...
2013: Frontiers of Neurology and Neuroscience
Barrett A Klein, Joey Stein, Ryan C Taylor
As reading fiction can challenge us to better understand fact, using fake animals can sometimes serve as our best solution to understanding the behavior of real animals. The use of dummies, doppelgangers, fakes, and physical models have served to elicit behaviors in animal experiments since the early history of behavior studies, and, more recently, robotic animals have been employed by researchers to further coax behaviors from their study subjects. Here, we review the use of robots in the service of animal behavior, and describe in detail the production and use of one type of robot - "faux" frogs - to test female responses to multisensory courtship signals...
September 1, 2012: Communicative & Integrative Biology
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