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G Asher Newsome, F Lucus Steinkamp, Braden C Giordano
As a reagent gas for positive- and negative-mode chemical ionization mass spectrometry (CI-MS), isobutane (i-C4H10) produces superior analyte signal abundance to methane. Isobutane has never been widely adopted for CI-MS because it fouls the ion source more rapidly and produces positive CI spectra that are more strongly dependent on reagent gas pressure compared with methane. Isobutane was diluted to various concentrations in argon for use as a reagent gas with an unmodified commercial gas chromatograph-mass spectrometer...
November 2016: Journal of the American Society for Mass Spectrometry
Frank Lucus Steinkamp, Lauryn E DeGreeff, Greg E Collins, Susan L Rose-Pehrsson
Hexamethylene triperoxide diamine (HMTD) is an easily synthesized and highly sensitive organic peroxide frequently used as a primary explosive. The vapor pressure of HMTD is very low, impeding vapor detection, especially when compared to other peroxide explosives, such as triacetone triperoxide (TATP) or diacetone diperoxide (DADP). Despite this fact, HMTD has a perceptible odor that could be utilized in the indirect detection of HMTD vapor. Headspace measurements above solid HMTD samples confirm that HMTD readily decomposes under ambient conditions to form highly volatile products that include formic acid, ammonia, trimethylamine and formamides...
June 17, 2016: Journal of Chromatography. A
Frances M Russell, Robert R Ehrman, Karen Cosby, Asim Ansari, Stephanie Tseeng, Errick Christain, John Bailitz
OBJECTIVES: The primary goal of this study was to determine accuracy for diagnosing acutely decompensated heart failure (ADHF) in the undifferentiated dyspneic emergency department (ED) patient using a lung and cardiac ultrasound (LuCUS) protocol. Secondary objectives were to determine if US findings acutely change management and if findings are more accurate than clinical gestalt. METHODS: This was a prospective, observational study of adult patients presenting to the ED with undifferentiated dyspnea...
February 2015: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
D Isenberg, Y Shoenfeld
Polyreactive autoantibodies able to bind double-stranded DNA are a characteristic of systemic lucus erytheamtosus. Here, David Isenberg and Yehuda Shoenfeld discuss the likelihood that DNA is the immunogen in this disorder, and review a number of cross-reactions that may underline the detection of the antibodies.
1987: Immunology Today
Ghizlane Dahbi, Azucena Mora, Cecilia López, María Pilar Alonso, Rosalía Mamani, Juan Marzoa, Amparo Coira, Fernando García-Garrote, Julia María Pita, David Velasco, Alexandra Herrera, Susana Viso, Jesús E Blanco, Miguel Blanco, Jorge Blanco
Having shown that Lucus Augusti Hospital in Lugo, Spain, has been affected by Escherichia coli clone O25:H4-ST131 producing CTX-M-15, the present study was carried out to evaluate the prevalence of this clone among the extended-spectrum β-lactamase (ESBL)-producing E. coli isolates and to identify novel variants of this clone. Of the 77 ESBL-producing E. coli isolated between January and April 2012, 47 (61%) were identified as belonging to the ST131 clonal group, comprising 38 O25b:H4-B2-ST131 (34 CTX-M-15, 2 CTX-M-14, 1 CTX-M-1 and 1 CTX-M-27), 7 O-non-typeable:H4-B2-ST131 (all CTX-M-15) and 2 O16:H5-B2-ST131 (both CTX-M-14)...
October 2013: International Journal of Antimicrobial Agents
Kathleen F Putnam, Lucus A Mueller, Everett F Magann, Andrew Thagard, Alan M Johnson, Songthip T Ounpraseuth, John C Morrison
OBJECTIVE: To determine if an association exists between daily physical activity, and pregnancy/neonatal outcomes in stay at home military wives. METHODS: This is a prospective observational study of pregnant military wives who do not work outside the home. Participants completed a validated questionnaire of their daily activity from which the average energy expenditure per day (kcal/day) was calculated. Participants were grouped, according to their energy expenditure and assessed for antepartum, intrapartum, and neonatal outcomes...
August 2013: Military Medicine
Roman Pawlak, Scott James Parrott, Sudha Raj, Diana Cullum-Dugan, Debbie Lucus
Vegetarians are at risk for vitamin B(12) (B12) deficiency due to suboptimal intake. The goal of the present literature review was to assess the rate of B12 depletion and deficiency among vegetarians and vegans. Using a PubMed search to identify relevant publications, 18 articles were found that reported B12 deficiency rates from studies that identified deficiency by measuring methylmalonic acid, holo-transcobalamin II, or both. The deficiency rates reported for specific populations were as follows: 62% among pregnant women, between 25% and almost 86% among children, 21-41% among adolescents, and 11-90% among the elderly...
February 2013: Nutrition Reviews
Chaudakshetrin Pongparadee, Ester Penserga, David Jeng-Shiang Lee, Shun-le Chen, Ranjit Singh Gill, Abdulbar Hamid, Witsanu Kumthornthip, Yi Liu, Lucus Meliala, H Jusuf Misbach, Kian Hian Tan, Swan Sim Yeap, Sow Nam Yeo, Hsiao Yi Lin
Chronic pain is a complex problem that eludes precise definition and can be clinically difficult to diagnose and challenging to treat. In the Asia-Pacific region, prevalence estimates that chronic pain ranges from 12% to 45% of the population, with musculoskeletal, rheumatic or osteoarthritis pain making up the majority of the disease burden. Implementation of current management guidelines into routine clinical practice has been challenging and as a result, patients with musculoskeletal pain are often poorly managed...
August 2012: International Journal of Rheumatic Diseases
(no author information available yet)
The paper describes life and works of professor V.F. Voyno-Yaseneckiy (Holy Hierarch Lucas). Surgeon and Archibishop, he was officially glorified by the Patriarchate of Russia. Voyno-Yaseneckiy's early works represent the guidelines for regional anesthesia and his, Notes on Purulent Surgery, published in 1934 lad the foundation for an entire medical specialty.
2012: Stomatologii︠a︡
Jeremy C Christman, Deborah K Fix, Sawanna C Lucus, Debrah Watson, Emma Desmier, Rolanda J Johnson Wilkerson, Charles Fixler
BACKGROUND AND OBJECTIVE: Despite numerous body moisturizers being available, cosmetic xerosis continues to be a leading skin problem for consumers. We performed two 35-day studies to evaluate the ability of a variety of body moisturizers containing various levels of oils/lipids, humectants, as well as other ingredients (e.g., niacinamide) to improve stratum corneum integrity. METHODS: 63 and 58 female subjects were enrolled and randomized in an incomplete block design to six of nine products (eight moisturizers or no treatment control) in studies 1 and 2, respectively...
January 2012: Journal of Drugs in Dermatology: JDD
Yung-Wei Chi, Victor S Lucus
No abstract text is available yet for this article.
June 2011: Vascular Medicine
Evelyn Lucus-Perry
African-American dental students at the University of Michigan are engaged in identifying, guiding, and preparing promising predental students for a career in dentistry. Collaborating with the Student National Dental Association (SNDA), the Predental Association at the school, and with the help of faculty members and the administration, students have developed an Impressions Day and participate in a Research Day, a golf outing, an Elementary School Outreach program, a Dental Initiatives activity, the Scholars Program for Dental Leadership, and participation in the school's Mentor Program...
2010: Journal of the American College of Dentists
Debbie Lucus
No abstract text is available yet for this article.
2008: Preventive Cardiology
Lucus H Bradley, Wayne C Paullus, James Howe, N Scott Litofsky
BACKGROUND: With the advent of holo-body computed tomography scanning of trauma patients, the radiologic diagnosis of transverse process fractures (TPF) has increased. The significance of this fracture has not been elucidated. Spine service (neurosurgical or orthopedic) consultation is frequently requested for patients with these fractures, stressing constraints on these practices. We hypothesize that isolated transverse process fractures (iTPF) are structurally and neurologically stable injuries, which do not require spine service intervention...
October 2008: Journal of Trauma
Debbie Lucus
No abstract text is available yet for this article.
2008: Preventive Cardiology
C Tissa Kappagoda, Amy Ma, Douglas A Cort, Linda Paumer, Debbie Lucus, Jill Burns, Ezra Amsterdam
BACKGROUND: Several clinical trials have shown that intensive lifestyle modification programs have a significant impact on cardiovascular risk factors. HYPOTHESIS: This paper is a retrospective analysis to determine the effect of participation in a 2-year lifestyle management program on long-term clinical outcome in patients outside the setting of a clinical trial. METHODS: Patients with angiographically confirmed coronary artery disease (CAD) enrolled in a 2-year program of exercise training, dietary counseling, stress management, and therapeutic education...
July 2006: Clinical Cardiology
Noori S Al-Waili, Glenn J Butler, Jorge Beale, Mahdi S Abdullah, R W Bill Hamilton, Boke Y Lee, Paul Lucus, Michael W W Allen, Richard L Petrillo, Zev Carrey, Michael Finkelstein
Hyperbaric oxygen (HBO) therapy has been used to treat patients with numerous disorders, including stroke. This treatment has been shown to decrease cerebral edema, normalize water content in the brain, decrease the severity of brain infarction, and maintain blood-brain barrier integrity. In addition, HBO therapy attenuates motor deficits, decreases the risks of sequelae, and prevents recurrent cerebral circulatory disorders, thereby leading to improved outcomes and survival. Hyperbaric oxygen also accelerates the regression of atherosclerotic lesions, promotes antioxidant defenses, and suppresses the proliferation of macrophages and foam cells in atherosclerotic lesions...
November 2005: Advances in Therapy
V P Pushkarev, L V Rakhmanina, P I Novikov, P L Ivanov
Allelic frequencies of chromosome micro-satellite locuses D16S539, F13B, FESFPS, TH01 and TPOX were determined, within the case study, in a sampling of Europeoidal individuals residing in Russia's Ural Region. The allelic variants were analyzed by capillary electrophoresis after the enzyme amplification in polymerase chain reaction with fluorescent primers. The genotypic frequencies of the studied locuses were shown not to divert with statistical reliability from Hardy-Weinberg equilibrium. The estimated aggregate discriminative potential for a panel of 5 studied locuses made 0...
January 2004: Sudebno-meditsinskaia Ekspertiza
B Bonfiglioli, P Brasili, M G Belcastro
The study of teeth is very important in archaeoanthropology for reconstruction of the nutritional habits and living conditions of past populations. We have analysed dental lesions of pathological (caries, abscesses and ante mortem tooth loss) and non-pathological origin (calculus), linear enamel hypoplasia and tooth wear in 67 adults from the Roman Imperial age necropolis (1st-4th c. AD) of Quadrella (Molise, Italy). The high frequency of caries (likely giving rise to the abscesses and ante mortem tooth loss), the abundant calculus and the low frequency of heavy wear are probably due to a limited use of hard fibrous foods and a high consumption of carbohydrates...
2003: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
L Salvadei, F Ricci, G Manzi
Porotic hyperostosis, characterized by small and localized perforations on the surface of cranial bones, is considered a good indicator for assessing the health and nutritional status of past human populations. The most widely accepted theory at present indicates that anemias, either acquired or of genetic origin, are responsible for the bony lesions described as porotic hyperostosis. In this paper, the prevalence of these lesions in two skeletal samples from Latium (central Italy) was used to evaluate health and life conditions in Italy after the collapse of the Roman Empire...
November 2001: American Journal of Human Biology: the Official Journal of the Human Biology Council
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