[Genital piercings: epidemiology, sociocultural aspects, sexuality and complications].

Science.gov (United States)

Kluger, Nicolas

2012-01-01

Body piercing has gained tremendous popularity since the mid nineties. Genital piercings constitute a peculiar variant of piercing due to its sensitive localization. Health care providers are often very little informed about those piercings. Besides, negative stereotypes are often attributed to the bearers of such piercings. This review focuses not only on the medical aspects of genital piercings but also on the social, cultural and psychological background that surround those piercings. Copyright © 2011 Elsevier Masson SAS. All rights reserved.

[Piercings--what the physician needs to know?].

Science.gov (United States)

Kluger, Nicolas; Koljonen, Virve

2012-01-01

Body piercing (BP) is defined as penetration of jewellery through the skin. Along with tattooing BPs are the most common body modifications. Complications related to piercing are numerous. They can be acute or chronic, infectious or non infectious and local or systemic complications. Acute infections constitute the most important complications and occur independently of the piercing site. Special attention should be brought on oral piercings, as they are frequent and responsible for numerous complications. A non-judgmental approach is recommended, when a pierced patient seeks medical help for a piercing complication or any other health issue.

Do long-term tongue piercings affect speech quality?

Science.gov (United States)

Heinen, Esther; Birkholz, Peter; Willmes, Klaus; Neuschaefer-Rube, Christiane

2017-10-01

To explore possible effects of tongue piercing on perceived speech quality. Using a quasi-experimental design, we analyzed the effect of tongue piercing on speech in a perception experiment. Samples of spontaneous speech and read speech were recorded from 20 long-term pierced and 20 non-pierced individuals (10 males, 10 females each). The individuals having a tongue piercing were recorded with attached and removed piercing. The audio samples were blindly rated by 26 female and 20 male laypersons and by 5 female speech-language pathologists with regard to perceived speech quality along 5 dimensions: speech clarity, speech rate, prosody, rhythm and fluency. We found no statistically significant differences for any of the speech quality dimensions between the pierced and non-pierced individuals, neither for the read nor for the spontaneous speech. In addition, neither length nor position of piercing had a significant effect on speech quality. The removal of tongue piercings had no effects on speech performance either. Rating differences between laypersons and speech-language pathologists were not dependent on the presence of a tongue piercing. People are able to perfectly adapt their articulation to long-term tongue piercings such that their speech quality is not perceptually affected.

With Nipple Piercing

Directory of Open Access Journals (Sweden)

Mark D. Pearlman

1995-01-01

Full Text Available Background: Breast abscesses are typically seen in the setting of complicated mastitis in lactating women. Abscesses resulting from foreign bodies are not commonly seen in the breast. Over the past few decades, body piercing has become increasingly common, yet the infectious morbidity resulting from it is not well recognized. A breast abscess associated with nipple piercing is described in this report.

Perceptions of visible piercings: a pilot study.

Science.gov (United States)

Martino, Sara; Lester, David

2011-12-01

49 undergraduates were shown pictures of a man and a woman with piercings and with no piercings. The pierced model was judged to be less attractive and less normal than the nonpierced model. The pierced model was perceived as less intelligent, caring, generous, honest, and religious but more artistic and mysterious.

Oral and perioral piercings in Tshwane.

Science.gov (United States)

Ebrahim, R; Naidoo, S

2008-06-01

Oral and perioral piercings have recently become very popular and many patients present at dental clinics and practices with jewellery inserted into the oral and perioral tissues. It is imperative that oral health care professionals become familiar with this practice, become aware of its sequelae, and are able to provide oral health education regarding oral hygiene and care of the piercing. The present study investigated the sites of oral piercings, complications associated with piercings, plaque control procedures practised by piercees, and the attitude and behaviour of piercers towards infection control and prevention of complications after a piercing. A convenience sample was used and 126 piercees and 10 piercers completed a self-administered questionnaire. Of the 126 participants (107 females and 19 males), 88.10% had a tongue piercing, 19.84% had a lip piercing and 7.94% had both. The most common immediate post-procedure sequelae were pain (69.05%), swelling (52.38%) and difficulty eating, speaking and swallowing (70.63%). Long-term complications were reported by 17.56% of the sample, and included chipping of teeth, gingival recession, lesions on the tongue and palate, painful gums, and sensitivity of teeth. Oral health professionals need to be aware of the risk of damage to soft and hard tissue, and their role in informing patients about the potential risks, if consulted before a piercing.

Is chronic nipple piercing associated with hyperprolactinemia?

Science.gov (United States)

Sun, Grace E Ching; Pantalone, Kevin M; Gupta, Manjula; Kennedy, Laurence; Nasr, Christian; Constantiner, Marigel; Hamrahian, Amir H; Hatipoglu, Betul

2013-09-01

Literature on hyperprolactinemia in the setting of a nipple piercing is limited to individuals with concomitant breast/chest wall infection. It is unclear if chronic nipple stimulation from a piercing alone can cause sustained elevations of serum prolactin. Nipple piercing is emerging as a more mainstream societal form of body art, and the answer to this clinical question would potentially alter patient management. Our aim was to assess serum prolactin levels in subjects with nipple piercing. Inclusion criteria were as follows: men and women ≥ 18 years old with nipple piercing(s) present > 6 months. Exclusion criteria included: women who are pregnant, lactating or men and eight women were enrolled. Median (range) ages for men and women were 33 (24-42) and 27 years (23-42), respectively. All except one subject had bilateral piercings. The median interval from nipple piercing to blood draw was 4.0 (2.0-12.0) years. None of the subjects had hyperprolactinemia. Median (range) prolactin levels for men and women were 5.6 ng/mL (3.8-7.4) and 8.0 ng/mL (2.8-10.9), respectively. Our results suggest that in the absence of any concomitant infection, chronic nipple piercing is not associated with hyperprolactinemia.

Genital piercings: what is known and what people with genital piercings tell us.

Science.gov (United States)

Armstrong, Myrna L; Caliendo, Carol; Roberts, Alden E

2006-06-01

General and subjective information about those who chose to obtain genital piercings was presented. Particularly, the assumptions made from the literature are refuted by objective and subjective data collected from intimately pierced individuals themselves. Professional nurses must not base practice decisions on assumptions but on the "best evidence with clinical experience, research, (as well as) associated patient values" (Sackett, Strauss, Richardson, Rosenberg, & Haynes, 2001, p. 10). Thus, providing clinically competent care is driven by the latest knowledge and evidence from research and patient sources. Data found here provide further empirical evidence that may help to improve client outcomes by advancing evidence-based nursing practice in relation to people with genital piercings.

Piercing and Tattoos - Multiple Languages

Science.gov (United States)

... Are Here: Home → Multiple Languages → All Health Topics → Piercing and Tattoos URL of this page: https://medlineplus. ... V W XYZ List of All Topics All Piercing and Tattoos - Multiple Languages To use the sharing ...

Body piercing: complications and prevention of health risks.

Science.gov (United States)

Holbrook, Jaimee; Minocha, Julia; Laumann, Anne

2012-02-01

Body and earlobe piercing are common practices in the USA today. Minor complications including infection and bleeding occur frequently and, although rare, major complications have been reported. Healthcare professionals should be cognizant of the medical consequences of body piercing. Complications vary depending on the body-piercing site, materials used, experience of the practitioner, hygiene regimens, and aftercare by the recipient. Localized infections are common. Systemic infections such as viral hepatitis and toxic shock syndrome and distant infections such as endocarditis and brain abscesses have been reported. Other general complications include allergic contact dermatitis (e.g. from nickel or latex), bleeding, scarring and keloid formation, nerve damage, and interference with medical procedures such as intubation and blood/organ donation. Site-specific complications have been reported. Oral piercings may lead to difficulty speaking and eating, excessive salivation, and dental problems. Oral and nasal piercings may be aspirated or become embedded, requiring surgical removal. Piercing tracts in the ear, nipple, and navel are prone to tearing. Galactorrhea may be caused by stimulation from a nipple piercing. Genital piercings may lead to infertility secondary to infection, and obstruction of the urethra secondary to scar formation. In men, priapism and fistula formation may occur. Women who are pregnant or breastfeeding and have a piercing or are considering obtaining one need to be aware of the rare complications that may affect them or their child. Though not a 'complication' per se, many studies have reported body piercing as a marker for high-risk behavior, psychopathologic symptoms, and anti-social personality traits. When it comes to piercing complications, prevention is the key. Body piercers should take a complete medical and social history to identify conditions that may predispose an individual to complications, and candidates should choose a

Oral piercings among first-year university students.

Science.gov (United States)

Ventä, Irja; Lakoma, Ani; Haahtela, Sauli; Peltola, Jaakko; Ylipaavalniemi, Pekka; Turtola, Lauri

2005-05-01

The aim of the study was to examine oral piercings among first-year university students. First-year university students in 2002 were invited to a dental examination (n = 234; 49 men and 185 women). Students with piercings formed the study group and the rest served as controls. The methods included decayed, missing, and filled teeth (DMF) index, stimulated salivary flow rates, panoramic tomograms, and questionnaires including the Depression Inventory of Beck. Fisher's 2-sided exact test was used for statistical analysis. The prevalence of oral piercings was 3.4%. In the DMF indices, no statistically significant differences existed between the groups. Increased salivary flow rates were noted among students with piercings (63% vs 26%, P piercings is essential.

Oral piercings: immediate and late complications.

Science.gov (United States)

Vieira, Elma P; Ribeiro, Andre Luis Ribeiro; Pinheiro, João de Jesus V; Alves, Sérgio de M

2011-12-01

Oral piercings have a long history as part of religious, cultural, or sexual symbolism in many traditional tribes; currently, these ornaments have wide acceptance among young people. Several oral and systemic complications may be associated with this practice; however, limited data related to these complications can be obtained in the literature. This study includes 42 cases of oral piercings in 39 young adults, who were using or had used oral piercings, and the complications associated with their use. Immediate complications occurred in 29 cases, including excessive bleeding (69%) and pain (52.3%) as the most representative. Two cases of syncope were found. Late complications related to the piercing insertion site were observed in 97.6% of cases, with pain and swelling being present in 92.9% and 61.9% of cases, respectively. Dental pain and lacerations on the tongue represented the most prevalent complications associated with the surrounding tissues, accounting for 33.3% and 31% of cases. The use of oral piercings is related to a series of mainly local complications, and individuals who decide to use piercings should be aware of such complications. Individuals wishing to get a part of their body pierced should do so with qualified professionals and should regularly visit the dentist so that a regular control is achieved, thus ensuring the early detection of the adverse effects associated with this practice. Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

Intimate body piercings in women

NARCIS (Netherlands)

van der Meer, G. T.; Schultz, W. C. M. Weijmar; Nijman, J. M.

2008-01-01

The popularity of (intimate) body piercing has increased as well as the chances of being confronted with (the complications) of it. This article provides information about the various types of intimate body piercings in women, the complications and concerns regarding the treatment of patients with

Pierce electrodes for a multigap accelerating system

International Nuclear Information System (INIS)

Davydenko, V.I.; Ivanov, A.A.; Kotelnikov, I.A.; Tiunov, M.A.

2007-01-01

A well-known Pierce's solution that allows to focus a beam of charged particles using properly shaped electrodes outside the beam is generalized to the case of multigap accelerating system. Simple parametric formulae for Pierce electrodes are derived for an accelerating system with current density, limited either by space charge or by emitting property of the cathode. As an example of general approach, Pierce electrodes shape is analyzed for a system with two accelerating gaps. It is shown that precise Pierce's solution exists if acceleration rate within second gap is lower than within first gap. In the opposite case quasi-Pierce solution can be implemented using non-equipotential electrode between the gaps, and guidelines, based on numerical simulations, for the design of equipotential focusing electrodes are given

Pericondrite pós-piercing Post-piercing perichondritis

Directory of Open Access Journals (Sweden)

André de Paula Fernandez

2008-12-01

Full Text Available O uso de piercing tem se tornado uma prática muito freqüente entre os jovens. O procedimento na maioria vezes realizado por profissionais não-qualificados não é isento de riscos. O manuseio de material contaminado ou a higiene imprópria predispõem à pericondrite e à celulite. A pericondrite caracteriza-se pelo eritema do pavilhão auricular, dor intensa e febre. Sem tratamento, desenvolve-se um edema generalizado do pavilhão com formação de abscesso subpericondrial, podendo evoluir para necrose isquêmica da cartilagem e a temível deformidade estética conhecida como "orelha em couve flor". O agente responsável mais encontrado é o Pseudomonas aeruginosa. No estágio inicial da doença o tratamento pode ser feito com antibióticos de amplo espectro. Nos casos em que o abscesso está presente, a incisão e drenagem cirúrgica são obrigatórios acompanhado de antibioticoterapia guiado pela cultura e antibiograma. OBJETIVO: O objetivo deste relato de caso é realizar uma revisão bibliográfica dos últimos 10 anos abordando os aspectos anatômicos do pavilhão auricular, a história do uso de piercing e suas mais conhecidas complicações. MÉTODO: Relato de um caso de pericondrite pós-piercing transcartilaginoso onde houve a necessidade de tratamento cirúrgico com praticamente nenhuma deformidade estética. RESULTADO: Aquisição de experiência teórico-prática através de revisão bibliográfica e relato de um caso de evolução favorável para a paciente. CONCLUSÃO: Incidência crescente das complicações de pericondrites na população jovem deve levar à prevenção primária mais elaborada.Piercing has become more and more popular among adolescents. The procedure is generally performed by unqualified professionals and carries its risk. Non-sterilized material or inappropiate hygiene increases the possibility of perichondritis and celulitis. The disease is characterized by erythema of the auricula pinna, unbearable pain

Intimate body piercings in women.

Science.gov (United States)

van der Meer, G T; Schultz, W C M Weijmar; Nijman, J M

2008-12-01

The popularity of (intimate) body piercing has increased as well as the chances of being confronted with (the complications) of it. This article provides information about the various types of intimate body piercings in women, the complications and concerns regarding the treatment of patients with intimate bodypiercings.

Diagrammer hos Pierce og Deleuze

DEFF Research Database (Denmark)

Busk, Malene

2006-01-01

Artiklen omhandler to forskellige begreber om diagrammet, nemlig Pierces og Deleuzes. De definerer udfra to meget forskellige udgangspukter begge diagrammet som kreativt redskab......Artiklen omhandler to forskellige begreber om diagrammet, nemlig Pierces og Deleuzes. De definerer udfra to meget forskellige udgangspukter begge diagrammet som kreativt redskab...

Self-piercing riveting properties, processes and applications

CERN Document Server

Chrysanthou, A

2014-01-01

Due to its speed, low energy requirements, and the fact that it does not require a pre-drilled hole, the technique of self-piercing riveting (SPR) has been increasingly adopted by many industries as a high-speed mechanical fastening technique for the joining of sheet material components. Self-piercing riveting comprehensively reviews the process, equipment, and corrosion behaviour of self-piercing riveting, and also describes the process of evaluation and modelling of strength of self-piercing riveted joints, quality control methods and non-destructive testing.Part one provides an exte

Post-piercing perichondritis.

Science.gov (United States)

Fernandez, André de Paula; Castro Neto, Ivan de; Anias, Christiane Ribeiro; Pinto, Patrícia Ciminelli Linhares; Castro, Jair de Carvalho E; Carpes, Arturo Frick

2008-01-01

Piercing has become more and more popular among adolescents. The procedure is generally performed by unqualified professionals and carries its risk. Non-sterilized material or inappropiate hygiene increases the possibility of perichondritis and celulitis. The disease is characterized by erythema of the auricula pinna, unbearable pain and fever. Left untreated, the condition progresses with edema along the auricula and abscess formation that may result in ischemic necrosis and a cauliflower anesthetic deformation. The most common bacteria is Pseudomonas aeruginosa. In cases with abscesses, drainage is necessary along with antibiotic therapy guided by cultures and antibiogram. The aim of this case report was to review the past 10 years of published papers dealing with anatomical aspects of the auricular pinna, the history of piercing and its most common complications. A case report of perichondritis after 'high' ear piercing that required surgical treatment and that progressed with no esthetic loss. Theoretical and practical experience based on a review and a report of a case that progressed satisfactorily. The increased incidence of perichondritis in adolescents should require more elaborated primary prevention measures.

[Tattoos and piercings in adolescents: family conflicts and temperament].

Science.gov (United States)

Bosello, Romina; Favaro, Angela; Zanetti, Tatiana; Soave, Manuela; Vidotto, Giulio; Huon, Gail; Santonastaso, Paolo

2010-01-01

The phenomenon of body art, such as tattoos and piercings, has ancient roots, rediscovered in Western society during the '70s. The aim of this research is to investigate the prevalence and the characteristics of tattoos and piercings among Italian adolescents of high school in Padua, with particular attention to family context and temperament. Some questionnaires about the presence or the wish of tattoos/piercings, smoke and alcohol use, familiar conflicts, and some temperamental features, such as novelty seeking, harm avoidance and reward dependence, have been administered to a sample of 829 students. Tattoo and piercing's prevalence among adolescents was respectively 4% and 24%; 2.5% of the sample had both. Respectively 62% and 35% of the subjects expressed the desire of having a tattoo or piercing. A significant association has been found between tattoo/piercing's presence and smoke and alcohol use (p tattoos and piercings, are more likely to have familiar conflicts and minor perceived support and they have higher scores on the novelty seeking scale. Those who wish a tattoo/piercing showed higher reward dependence. This study confirms that tattoos/piercings are common among young people and it stresses the relevance of familiar and temperamental features, and the association between tattoos/piercings and some maladaptive behaviors, like smoke and alcohol use.

[Piercings. A new demand for nursing].

Science.gov (United States)

Lastra Félix, Marcos

2004-03-01

The new legal regulations and agreements dealing with the type of locales and personnel authorized to implant body rings through pierced holes known popularly as piercings brings with it the need for nurses to learn about this practice and to adapt our habitual sanitary techniques, in an urgent manner, in order to cover the increasing aesthetic demand. The nursing profession needs to amplify its range of treatments for this piercing practice so it is not limited to merely inserting rings or studs in holes.

Dental and oral complications of lip and tongue piercings.

Science.gov (United States)

De Moor, R J G; De Witte, A M J C; Delmé, K I M; De Bruyne, M A A; Hommez, G M G; Goyvaerts, D

2005-10-22

Piercing of the tongue and perioral regions is an increasingly popular expression of body art, with more patients coming in for a routine check-up with tongue and/or lip piercings. Several complications of oral piercing have been reported, some of which are life-threatening. In the present clinical survey the prevalence of both tongue and lip piercing complications in oral health was assessed in a group of 50 patients. The most common dental problem registered was chipping of the teeth, especially in association with tongue piercing. Gingival recession was seen as a result of lip piercing with studs. Post-procedural complications included oedema, haemorrhage and infection. Therefore, dentists and oral and maxillofacial surgeons should be given more authority to advise patients with oral and facial piercings or those who plan to acquire this type of body art.

Body adornment: piercings and tattoos.

Science.gov (United States)

Chivers, Lesley

Body adornment through tattoos and piercings is on the increase, making adverse side effects more common. Practitioners should be prepared to give advice, either before the event, or post-procedure in written and oral forms. The aim of this article is to inform practitioners of the sites and types of piercings, likely adverse side effects and estimated healing times.

Revised theory of Pierce-type electron guns

International Nuclear Information System (INIS)

Sar-El, H.Z.

1982-01-01

Attempts to date to obtain the shape of the beam forming electrodes of various Pierce-type electron guns are briefly discussed with emphasis on the many discrepansis in the results of previous works. A revised theory of Pierce-type electron guns is proposed. The shapes of the beam-forming electrodes for all known configurations of Pierce guns were computed on the basis of the proposed theory. (orig.)

[Cutaneous adverse reactions to tattoos and piercings].

Science.gov (United States)

Mataix, J; Silvestre, J F

2009-10-01

Piercings and tattoos have become very popular in western society in recent decades, particularly among younger generations. Reports of medical complications associated with these decorative techniques have increased in parallel with the rise in their popularity. Due to their high frequency, adverse cutaneous reactions are particularly important among these potential complications. Tattoo-related complications include a number of cutaneous and systemic infections secondary to breach of the epidermal barrier, acute and delayed inflammatory reactions with different histopathological patterns, the appearance of benign and malignant tumors on tattooed areas of skin, and certain dermatoses triggered by isomorphic phenomena. Piercing-related complications are similar, though some, such as pyogenic skin infections, are much more common due to the delayed wound healing after piercing in certain sites. We must differentiate between complications that are independent of the site of piercing, and specific complications, which are closely related to the body area pierced. The rate of complications after performing piercings or tattoos depends on the experience of the artist, the hygiene techniques applied, and the postprocedural care by the customer. However, some of these complications are unpredictable and depend on factors intrinsic to the patient. In this article, we review the most common decorative techniques of body art, with particular focus on the potential cutaneous complications and their management.

Management of Retained Genital Piercings: A Case Report and Review

Directory of Open Access Journals (Sweden)

Laura J. Moulton

2017-01-01

Full Text Available The prevalence of genital piercing among women is increasing. As the popularity increases, the number of complications from infection, injury, and retained jewelry is likely to rise. Techniques to remove embedded jewelry are not well described in the literature. The purpose of this report was to describe a case of a patient with a retained clitoral glans piercing, discuss a simple technique for outpatient removal, and review current evidence regarding associated risks of clitoral piercings. A 24-year-old female presented to the emergency department with an embedded clitoral glans piercing. Local anesthetic was injected into the periclitoral skin and a small superficial vertical incision was made to remove the ball of the retained barbell safely. In conclusion, among patients with retained genital piercing, outpatient removal of embedded jewelry is feasible. While the practice of female genital piercing is not regulated, piercing of the glans of the clitoris is associated with increased injury to the nerves and blood supply of the clitoris structures leading to future fibrosis and diminished function compared to piercing of the clitoral hood.

Management of Retained Genital Piercings: A Case Report and Review.

Science.gov (United States)

Moulton, Laura J; Jernigan, Amelia M

2017-01-01

The prevalence of genital piercing among women is increasing. As the popularity increases, the number of complications from infection, injury, and retained jewelry is likely to rise. Techniques to remove embedded jewelry are not well described in the literature. The purpose of this report was to describe a case of a patient with a retained clitoral glans piercing, discuss a simple technique for outpatient removal, and review current evidence regarding associated risks of clitoral piercings. A 24-year-old female presented to the emergency department with an embedded clitoral glans piercing. Local anesthetic was injected into the periclitoral skin and a small superficial vertical incision was made to remove the ball of the retained barbell safely. In conclusion, among patients with retained genital piercing, outpatient removal of embedded jewelry is feasible. While the practice of female genital piercing is not regulated, piercing of the glans of the clitoris is associated with increased injury to the nerves and blood supply of the clitoris structures leading to future fibrosis and diminished function compared to piercing of the clitoral hood.

Piercing by composite electrode tool

International Nuclear Information System (INIS)

Abdukarimov, Eh.T.; Krakov, B.G.; Saidinov, S.Ya.

1990-01-01

The construction of the electrode consisting of a dielectric shell, where a working liquid enters, and a metal rod is designed for precision super-deep piercing by the electroerosion treatment method. Technological parameters of piercing with small diameter (0.5-1.9 mm) for 12Kh18N10T steel, copper and tungsten are presented. A possibility to use a new tool for treating components of any form and sizes is marked

Drawing Euler Diagrams with Circles: The Theory of Piercings.

Science.gov (United States)

Stapleton, Gem; Leishi Zhang; Howse, John; Rodgers, Peter

2011-07-01

Euler diagrams are effective tools for visualizing set intersections. They have a large number of application areas ranging from statistical data analysis to software engineering. However, the automated generation of Euler diagrams has never been easy: given an abstract description of a required Euler diagram, it is computationally expensive to generate the diagram. Moreover, the generated diagrams represent sets by polygons, sometimes with quite irregular shapes that make the diagrams less comprehensible. In this paper, we address these two issues by developing the theory of piercings, where we define single piercing curves and double piercing curves. We prove that if a diagram can be built inductively by successively adding piercing curves under certain constraints, then it can be drawn with circles, which are more esthetically pleasing than arbitrary polygons. The theory of piercings is developed at the abstract level. In addition, we present a Java implementation that, given an inductively pierced abstract description, generates an Euler diagram consisting only of circles within polynomial time.

Self-reported characteristics of women and men with intimate body piercings.

Science.gov (United States)

Caliendo, Carol; Armstrong, Myrna L; Roberts, Alden E

2005-03-01

The purpose of this paper is to report the findings of a study exploring factors associated with female and male intimate body piercing, with particular emphasis on health issues. Nipple and genital piercings (intimate piercings) have become common types of body art. Scant medical and nursing literature is available, leading to little understanding of these body modifications by health care providers. A convenience sample of intimately pierced individuals (63 women and 83 men) from 29 states in the United States of America was surveyed via an author-developed questionnaire. Questions focused on demographic characteristics, decision factors and health problems related to intimate piercings. Self-reported characteristics were compared between female and male participants, and participants were compared demographically to United States general population. Participants reported wearing nipple piercings (43%), genital piercings (25%) and both types (32%). Respondents were significantly younger, less ethnically diverse, better educated, less likely to be married, more often homosexual or bisexual and they initiated sexual activity at a younger age than the US population. Deliberate, individual decisions for procurement of the intimate piercings were made. Average purchase consideration was at age 25 (nipple) and 27 (genital); average age to obtain the piercing was 27 (nipple) and 28 (genital) years. Purposes for obtaining the piercings included uniqueness, self-expression and sexual expression. Most participants still liked their piercing (73-90%). Health concerns related to intimate piercings were described by both those with nipple piercings (66%) and with genital piercings (52%) and included site sensitivity, skin irritation, infection and change in urinary flow (male genital). Few STDs (3%) were reported and no HIV or hepatitis. Usually non-medical advice was sought for problems -- often from the body piercer. Understanding client rationale is not a necessary

Trends and complications of ear piercing among selected Nigerian population

Directory of Open Access Journals (Sweden)

Olajide Toye Gabriel

2017-01-01

Full Text Available Background: The reported health and socioeconomic consequences of ear piercing, especially in modern day society, underscore the need to further research into this subject. In this study, we determine the trends and complications of ear piercing among selected Nigerian population. Aim and Objectives: The aim and objective of this study was to draw attention to the trends and complications of ear piercing with a view to prevent its associated complications. Methodology: It is a descriptive cross-sectional study carried out between February and May 2015 among selected Nigerian population from two of its six geo-political zones. A self-administered semi-structured questionnaire which had been pretested was used to collect data from 458 respondents who consented using multistage sampling technique. Results: Of 480 respondents enumerated, 458 completed the questionnaires and gave their biodata. The male:female ratio was 1:6.2. Their ages ranged from 18 to 75 years with a mean of 35.56 ± 10.16. About 35.4% of the respondents were within the age group of 31–40 years. Majority of the respondents, i.e.,79.3% practiced ear piercing on their children. Most of them (86.8% preferred single piercing. Ear piercing was performed within the 1st week of birth in 37.2% of the respondents. Large percentage (93.2% of the respondents will not encourage ear piercing in male children. Nearly 20.5% of the respondents observed complications. Conclusion: Ear piercing remained a common practice in Nigeria, with respondents preferring it on females. Majority of the piercings are done in childhood and by untrained personnel. Keloid formation was the notable complication observed by the respondents. There is a need to increase awareness about the hazards of ear piercings and to enact laws that regulate ear piercings particularly in children which is hereby stretched.

Intraurethral condylomata acuminata associated with genital piercings.

Science.gov (United States)

Takahashi, S; Hirano, Y; Kawamura, T; Homma, Y

2013-01-01

A 33-year-old man was referred to our institution with papillary masses at the urethral meatus and difficulty urinating. Genital examination showed two piercings on the frenulum, which were penetrating the external urethra. Endoscopic examination revealed papillary tumours over the entire circumference of the penile urethra and the piercing site. The tumours were resected transurethrally. Microscopic examination revealed condylomata acuminata. Human papillomavirus types 6 and 66 were detected in the lesions. Retrograde urethral viral infection is rare because of the protection provided by the mucosal immune system. Genital piercing may have facilitated spread of the human papillomavirus into the urethra.

Pierce instability and bifurcating equilibria

International Nuclear Information System (INIS)

Godfrey, B.B.

1981-01-01

The report investigates the connection between equilibrium bifurcations and occurrence of the Pierce instability. Electrons flowing from one ground plane to a second through an ion background possess a countable infinity of static equilibria, of which only one is uniform and force-free. Degeneracy of the uniform and simplest non-uniform equilibria at a certain ground plan separation marks the onset of the Pierce instability, based on a newly derived dispersion relation appropriate to all the equilibria. For large ground plane separations the uniform equilibrium is unstable and the non-uniform equilibrium is stable, the reverse of their stability properties at small separations. Onset of the Pierce instability at the first bifurcation of equilibria persists in more complicated geometries, providing a general criterion for marginal stability. It seems probable that bifurcation analysis can be a useful tool in the overall study of stable beam generation in diodes and transport in finite cavities

Piercings in medical students and their effects on the skin.

Science.gov (United States)

Purim, Kátia Sheylla Malta; Rosario, Bernardo Augusto; Rosario, Cristine Secco; Guimarães, Ana Tereza Bittencourt

2014-01-01

Piercings are body embellishments commonly seen in young people, however their inherent risk of infection and scarring disorders are less divulged. To evaluate the prevalence of body piercings among medical students and their possible dermatologic consequences. Cross-sectional study with 58 medical students, by means of a structured questionnaire covering socio-demographic characteristics, technical issues related to the piercing and characteristics of the dermatologic complications. The sample was predominantly female (86.2%), with mean age 24 ± 3 years. The placement of the first piercing occurred during adolescence (median age 15), without medical supervision (91.4%) or knowledge of parents/guardians (74%). Most piercings were made of metal alloy/stainless steel, in a dumbbell model (51.7%), inserted in the umbilical area (53.5%) or ear (41.4%), with frequent cutaneous reactions in the first six months post-piercing. Hypertrophic scarring, pain, swelling and infection (ppiercings. Piercing insertion occurred during adolescence. Local inflammatory and infectious reactions were common. Scarring disorders and dermatitis appeared in the long term. There is need for preventive and educational activities, starting with those in the academic environment.

Self-piercing riveting - a review

OpenAIRE

Li, Dezhi; Chrysanthou, Andreas; Patel, Imran; Williams, Geraint J.

2017-01-01

Self-piercing riveting (SPR) is a cold mechanical joining process used to join two or more sheets of materials by driving a rivet piercing through the top sheet or the top and middle sheets and subsequently lock into the bottom sheet under the guidance of a suitable die. SPR is currently the main joining method for aluminium and mixed-material lightweight automotive structures. SPR was originated half century ago, but it only had significant progress in the last 25 years due to the requiremen...

Pierce Lumber, Inc.

Science.gov (United States)

The EPA is providing notice of a proposed Administrative Penalty Assessment against Pierce Lumber, Inc. (“Respondent”), located at 1629 13th Street, Belle Plaine, IA for alleged violations of its National Pollutant Discharge Elimination System permit (perm

Proximity to citrus influences Pierce's disease in Temecula Valley vineyards

OpenAIRE

Perring, Thomas M.; Farrar, Charles A.; Blua, Matthew

2001-01-01

Pierce's disease has caused extensive losses to grapes in the Temecula Valley. The primary vector of Pierce's disease in the region is the glassy-winged sharpshooter (GWSS), which has been found in large numbers in citrus trees. We examined the role of citrus in the Temecula Valley Pierce's disease epidemic and found that citrus groves have influenced the incidence and severity of Pierce's disease in grapes. Because GWSS inhabit citrus in large numbers, California grape growers should take ad...

Religious belief and practice in attitudes toward individuals with body piercing.

Science.gov (United States)

Koch, Jerome R; Roberts, Alden E; Armstrong, Myrna L; Owen, Donna C

2004-10-01

Some research suggests adorning the body with tattoos or piercing jewelry is normative. Survey data were gathered from 450 undergraduates (72% female; 80% Euro-American; 63% freshmen and sophomores). Correlations between an index of respondents' religious belief and practice and their attitudes toward individuals who had more body piercings were weak if piercings were 7 or more, including piercings of the nipples and genitals. As religiosity is a carrier of normative behavior, individuals who have body piercings may be viewed as behaving within cultural norms.

Tattoos and body piercings as indicators of adolescent risk-taking behaviors.

Science.gov (United States)

Carroll, Sean T; Riffenburgh, Robert H; Roberts, Timothy A; Myhre, Elizabeth B

2002-06-01

This study assessed tattoos and body piercings as markers of risk-taking behaviors in adolescents. A 58-question survey, based on the 1997 Centers for Disease Control and Prevention Youth Risk Behavior Survey, was offered to all adolescent beneficiaries that came to the Adolescent Clinic. The survey contained standard Youth Risk Behavior Survey questions that inquire about eating behavior, violence, drug abuse, sexual behavior, and suicide. Questions about tattoos and body piercings were added for the purposes of this study. Participants with tattoos and/or body piercings were more likely to have engaged in risk-taking behaviors and at greater degrees of involvement than those without either. These included disordered eating behavior, gateway drug use, hard drug use, sexual activity, and suicide. Violence was associated with males having tattoos and with females having body piercings. Gateway drug use was associated with younger age of both tattooing and body piercing. Hard drug use was associated with number of body piercings. Suicide was associated with females having tattoos and younger age of both tattooing and body piercing. Tattoos and body piercings were found to be more common in females than males. Tattoos and/or body piercings can alert practitioners to the possibility of other risk-taking behaviors in adolescents, leading to preventive measures, including counseling. Tattoo and body piercing discovery should be an important part of a health maintenance visit to best direct adolescent medical care.

Piercings in medical students and their effects on the skin*

Science.gov (United States)

Purim, Kátia Sheylla Malta; Rosario, Bernardo Augusto; Rosario, Cristine Secco; Guimarães, Ana Tereza Bittencourt

2014-01-01

BACKGROUND Piercings are body embellishments commonly seen in young people, however their inherent risk of infection and scarring disorders are less divulged. OBJECTIVE To evaluate the prevalence of body piercings among medical students and their possible dermatologic consequences. METHODS Cross-sectional study with 58 medical students, by means of a structured questionnaire covering socio-demographic characteristics, technical issues related to the piercing and characteristics of the dermatologic complications. RESULTS The sample was predominantly female (86.2%), with mean age 24 ± 3 years. The placement of the first piercing occurred during adolescence (median age 15), without medical supervision (91.4%) or knowledge of parents/guardians (74%). Most piercings were made of metal alloy/stainless steel, in a dumbbell model (51.7%), inserted in the umbilical area (53.5%) or ear (41.4%), with frequent cutaneous reactions in the first six months post-piercing. Hypertrophic scarring, pain, swelling and infection (ppiercings. CONCLUSION Piercing insertion occurred during adolescence. Local inflammatory and infectious reactions were common. Scarring disorders and dermatitis appeared in the long term. There is need for preventive and educational activities, starting with those in the academic environment. PMID:25387495

Julianne Pierce VNS Matrix / Julianne Pierce ; interv. Tilman Baumgärtel

Index Scriptorium Estoniae

Pierce, Julianne

2006-01-01

Intervjuu austraalia kunstniku Julianne Pierce'iga, kes koos Josephine Starrsi, Francesca da Rimini ja Virginia Barretiga lõi 1991. a. Sydney's naiskunstirühmituse VNS Matrix ning kirjutas "21. sajandi küberfeministliku manifesti". Rühmituse töödest

Adverse consequences of tattoos and body piercings.

Science.gov (United States)

Larzo, Melissa R; Poe, Susannah Grimm

2006-03-01

Body piercings and tattoos are becoming more common in the adolescent population today. Despite their movement into mainstream society, literature to aid in counseling of teens about these issues is scant. The practitioner dealing with this population of patients must be armed with the information necessary that will help adolescents make informed decisions about tattoos and piercings.

In Vitro Adherence of Oral Bacteria to Different Types of Tongue Piercings.

Science.gov (United States)

Borges, Lucas Pereira; Ferreira-Filho, Julio Cesar Campos; Martins, Julia Medeiros; Alves, Caroline Vieira; Santiago, Bianca Marques; Valença, Ana Maria Gondim

2016-01-01

The purpose of this work was to verify in vitro adherence of E. corrodens and S. oralis to the surface of tongue piercings made of surgical steel, titanium, Bioplast, and Teflon. For this, 160 piercings were used for the count of Colony Forming Units (CFU) and 32 piercings for analysis under scanning electron microscopy. Of these, 96 (24 of each type) were individually incubated in 5 mL of BHI broth and 50  μ L of inoculum at 37°C/24 h. The other 96 piercings formed the control group and were individually incubated in 5 mL of BHI broth at 37°C/24 h. Plates were incubated at 37°C/48 h for counting of CFU/mL and data were submitted to statistical analysis ( p value piercings, showing lower colonization ( p piercings. The four types of piercings were susceptible to colonization by E. corrodens and S. oralis , and bacterial adhesion was more significant in those made of Bioplast and Teflon. The piercings presented bacterial colonies on their surface, being higher in plastic piercings probably due to their uneven and rough surface.

[Association between tattoos, piercings and risk behaviors in adolescents].

Science.gov (United States)

Cossio, María Laura T; Giesen, Laura F; Araya, Gabriela; Pérez-Cotapos, María Luisa S

2012-02-01

The use of tattoos and piercings has increased, especially among adolescents in the last decades. To evaluate the prevalence of these behaviors in adolescents and their association with risk behaviors such as alcohol, tobacco and illicit drug use and sexual promiscuity. An anonymous and confidential survey about tattooing and piercings was applied to randomly selected high school teenagers, attending municipal, private-subsidized and private schools, in four sectors of Santiago (north-east, south-east, north-west, south-west). The surveys were answered by 1329 participants with a mean age of 15 years (62% women) from 9 schools in Santiago. The prevalence of tattoos was 1.7% (confidence intervals (CI) 1.1% to 2.5%). The figure for piercings was 30.6% (CI 28.2 to 33.1%). A higher prevalence of tattooing and piercings was observed in groups with a history of psychiatric disorders, criminal records, alcohol, tobacco and illicit drug consumption and initiation of sexual activity (p < 0,001). This study confirms that tattoos and piercings are indicators of adolescent risk behaviors.

Self-piercing riveting - a review\\ud

OpenAIRE

Li, Dezhi; Chrysanthou, Andreas; Patel, Imran; Williams, Geraint J.

2016-01-01

Self-Piercing Riveting (SPR) is a cold mechanical joining process used to join two or more sheets of materials by driving a semitubular rivet piercing through the top sheet or the top and middle sheets and subsequently lock into the bottom sheet under the guidance of a suitable die. SPR was originated half century ago, but it only had significant progress in the last 25 years due to the requirement of joining lightweight materials, such as aluminium alloy structures, aluminium-steel structure...

Overview of complications secondary to tongue and lip piercings.

Science.gov (United States)

Maheu-Robert, Léo-François; Andrian, Elisoa; Grenier, Daniel

2009-07-01

In recent years, intraoral and perioral piercings have grown in popularity among teenagers and young adults. This is of concern to dental and medical professionals because of the risks and complications for oral, dental and general health. The risks and complications associated with tongue and lip piercings range from abnormal tooth wear and cracked tooth syndrome to gingival recession and systemic infections. In this report, we provide an overview of possible problems associated with oral piercings that may be encountered by dentists.

Application of hard coatings for blanking and piercing tools

DEFF Research Database (Denmark)

Podgornik, B.; Zajec, B.; Bay, Niels

2011-01-01

The aim of the present investigation was to examine the possibility of reducing lubrication and replacing expensive tungsten carbide material in blanking/piercing through introduction of hard tool coatings. Results show that hard PVD coatings can be successfully used in blanking/piercing...... critical value under dry friction conditions and leads to tool failure. Therefore, at present oxidation and temperature resistant hard coatings can give improved wear resistance of stamping tools, but elimination of lubricants in blanking and piercing processes is still not feasible....

Behaviour and Modelling of Self-piercing Screw and Self-piercing Rivet Connections: An Experimental and Numerical Investigation

OpenAIRE

Sønstabø, Johan Kolstø; Holmstrøm, Petter Henrik

2013-01-01

Accurate and reliable models of connections are essential for the design of aluminium parts in cars. Today, there exist a few models customized for self-piercing rivets (SPR), but none for self-piercing screws (SPS). This thesis presents an experimental and numerical study on the behaviour of SPR and SPS connections for different loading situations. For the rolled base material, AA6016 in the T4 condition, uniaxial tension, plane strain tension and in-plane single shear tests were performe...

Patients' perceptions of patient care providers with tattoos and/or body piercings.

Science.gov (United States)

Westerfield, Heather V; Stafford, Amy B; Speroni, Karen Gabel; Daniel, Marlon G

2012-03-01

This study evaluated patients' perceptions of patient care providers with visible tattoos and/or body piercings. As tattooing and body piercing are increasingly popular, research that informs nursing administrators regarding policies on patient care providers having visible tattoos and body piercings is warranted. A total of 150 hospitalized adult patients compared pictures of male and female patient care providers in uniform with and without tattoos and/or nonearlobe body piercings. Patient care providers with visible tattoos and/or body piercings were not perceived by patients in this study as more caring, confident, reliable, attentive, cooperative, professional, efficient, or approachable than nontattooed or nonpierced providers. Tattooed female providers were perceived as less professional than male providers with similar tattoos. Female providers with piercings were perceived as less confident, professional, efficient, and approachable than nonpierced female providers. Nursing administrators should develop and/or evaluate policies regarding patient care providers with visible tattoos and/or body piercings.

Profile of oral piercing users and implications resulting from its use

Directory of Open Access Journals (Sweden)

Jeferson da Costa Marchiori

2009-01-01

Full Text Available Objective: To identify the profile of oral piercing users and the possible implications resulting from its use, as well as explaining to dentists about the possible consequences to their patients as a result of wearing this type of jewelry in the oral region.Methods: Fifty-one oral piercing users were interviewed. They were aged between 18 and 42 year, from different social classes, and resident in the city of Santa Maria, Rio Grande do Sul, Brazil.Results: Based on the questionnaires analyzed, the majority of users had tongue or lip piercing as a way to express identity, and 45% reported the occurrence of some type of oral and/or general alteration associated with the use of piercings. Conclusion: The majority of alterations are harmful to the piercing user’s health, therefore, professionals in the Dentistry area must be warnedto explain to their patients, who use oral piercings, about the consequences that may occur and the need for special care to ameliorate these problems.

Complications of oral and peri-oral piercings: a summary of case reports.

Science.gov (United States)

Hennequin-Hoenderdos, N L; Slot, D E; Van der Weijden, G A

2011-05-01

To systemically search the literature for case reports concerning adverse effects associated with oral and peri-oral piercings on oral health and/or general health.   MEDLINE and the Cochrane Central Register of Controlled Trials (CENTRAL) were searched up through 1 April 2010 to identify appropriate studies. Independent screening of the titles and abstracts identified 1169 papers from MEDLINE and 73 papers from CENTRAL. Subsequently, 67 papers describing 83 cases were processed for data extraction. The case reports described complications in oral and general health. In this review, 96 complications were described for 83 cases. Of the 96 reported complications, 81% (n=84) occurred in cases of tongue piercings, 20% (n=21) in cases of lip piercings and 1% (n=1) in cases of other oral piercings. In eight cases, subjects had two oral and/or peri-oral piercings. Gingival recession was the most frequently described complication. Periodontitis and gingival recession were seen at the central mandibular incisors. Tooth fracture is mostly reported in subjects with tongue piercings. Among the case reports, there were complications like normal post-operative swelling and localized inflammation but also more serious complication that may even have been life threatening. Also in the long term, piercing may be associated with gingival recession and tooth fracture. Therefore, oral and/or peri-oral piercings are not without risks. Patients considering a piercing should be made aware of this. Those patients wearing a piercing should be screened by a dental professional for possible complications on a regular basis. © 2011 John Wiley & Sons A/S.

Unstable oscillatory Pierce modes of neutralized electron beams

International Nuclear Information System (INIS)

Cary, J.R.; Lemons, D.S.

1982-01-01

Oscillatory modes of the Pierce system have been calculated. These modes are found to have growth rates comparable to the previously investigated purely growing modes. When these modes are included, it is found that the Pierce system is unstable for most values of ω/sub p/ L/V 0 >π

Breast abscess after nipple piercing: sonographic findings with clinical correlation.

Science.gov (United States)

Leibman, A Jill; Misra, Monika; Castaldi, Maria

2011-09-01

The purpose of this series was to review the spectrum of clinical and sonographic features associated with infection after nipple piercing. Between 2002 and 2010, 6 patients presented to our breast center with a breast abscess after nipple piercing. A retrospective analysis of the imaging findings was performed with clinical and pathologic correlation. Patients with breast infections after nipple piercing tend to be young, and the timing since piercing varies from 2 weeks to 17 months. Sonography showed a complex or hypoechoic mass in 5 of 6 patients. Treatment of breast abscesses included surgical incision and drainage, percutaneous drainage, and antibiotic therapy. Surgical evacuation is commonly performed; however, sonographically guided aspiration may be an appropriate management strategy.

Tattoos, piercing, and sexual behaviors in young adults.

Science.gov (United States)

Nowosielski, Krzysztof; Sipiński, Adam; Kuczerawy, Ilona; Kozłowska-Rup, Danuta; Skrzypulec-Plinta, Violetta

2012-09-01

Body piercing and tattooing are accepted by a growing number of teenagers and young adults as a way of self-expressing. Some authors suggest association between body piercings/tattoos and early sexual initiation, higher number of sexual partners, or risky sexual behaviors. The aim of the study was to evaluate sexual behaviors among young adults with body modifications (BMs)--tattoos and piercings. One hundred twenty young healthy adults, ages between 20 and 35, were included in the population study. The study group was divided into three subgroups: controls (N = 60), adults with tattoos (N = 28), and adults with piercings (N = 32). The research instrument was a self-prepared questionnaire containing 59 questions assessing socioepidemiological parameters, sexual behaviors, incidents of sexual harassment in the past, and self-attractiveness evaluation, as well as questions concerning tattoos and piercings. Socioepidemiological variables and sexual behaviors were compared between subgroups. To assess and describe the correlation between having BM--tattoos and piercing--and sexual behaviors in the population of young adults by using the logistic regression model. Adults with BMs have had their first intercourse statistically earlier and were more sexually active compared with controls. There were no statically significant differences in sexual orientation, sexual preferences, engaging in risky sexual behaviors, frequency of masturbation, and history of sexual abuse between the groups. In contrast, the frequency of sexual intercourses was statistically higher and oral sex was more likely to be a dominant sexual activity in adults with BM compared with controls. The multivariate logistic model revealed that adults with BM were four times less likely to participate in religious practices and twice more likely to have early sexual initiation. Having BM is associated with early sexual initiation and more liberal attitudes toward sexual behaviors but not with engaging in

The incidence of complications associated with lip and/or tongue piercings: a systematic review.

Science.gov (United States)

Hennequin-Hoenderdos, N L; Slot, D E; Van der Weijden, G A

2016-02-01

This review determines the incidence of complications associated with lip and/or tongue piercings based on a systematic evaluation of the available literature. MEDLINE-PubMed, Cochrane-CENTRAL and EMBASE databases were comprehensively searched through June 2014 to identify appropriate studies. The incidence of complications, as established by a dental professional associated with oral and peri-oral piercings, was evaluated in populations with lip and/or tongue piercings. The quality of the case-control studies was assessed using the Newcastle-Ottawa Scale. For case series studies, the risk of bias was assessed using the National Institute for Health and Clinical Excellence scale. An independent screening of 1580 unique titles and abstracts revealed 15 publications that met the eligibility criteria. The incidence of gingival recessions appeared to be 50% in subjects with lip piercings and 44% in subjects with a tongue piercing. Tooth injuries were observed in 26% individuals with lip piercings and in up to 37% of individuals with tongue piercings. Subjects with a lip piercing were 4.14 times (P = 0.005) more likely to develop gingival recession than those without a lip piercing. Subjects with a tongue piercing were more likely than non-pierced subjects to experience gingival recession (relative risk (RR) 2.77; P = 0.00001) and tooth injuries (RR 2.44; P = 0.003). Both lip and tongue piercings are highly associated with the risk of gingival recession, and tongue piercings are also associated with tooth injuries. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

In Vitro Adherence of Oral Bacteria to Different Types of Tongue Piercings

Directory of Open Access Journals (Sweden)

Lucas Pereira Borges

2016-01-01

Full Text Available The purpose of this work was to verify in vitro adherence of E. corrodens and S. oralis to the surface of tongue piercings made of surgical steel, titanium, Bioplast, and Teflon. For this, 160 piercings were used for the count of Colony Forming Units (CFU and 32 piercings for analysis under scanning electron microscopy. Of these, 96 (24 of each type were individually incubated in 5 mL of BHI broth and 50 μL of inoculum at 37°C/24 h. The other 96 piercings formed the control group and were individually incubated in 5 mL of BHI broth at 37°C/24 h. Plates were incubated at 37°C/48 h for counting of CFU/mL and data were submitted to statistical analysis (p value <0.05. For E. corrodens, difference among types of material was observed (p<0.001 and titanium and surgical steel showed lower bacterial adherence. The adherence of S. oralis differed among piercings, showing lower colonization (p<0.007 in titanium and surgical steel piercings. The four types of piercings were susceptible to colonization by E. corrodens and S. oralis, and bacterial adhesion was more significant in those made of Bioplast and Teflon. The piercings presented bacterial colonies on their surface, being higher in plastic piercings probably due to their uneven and rough surface.

A Dermal Piercing Complicated by Mycobacterium fortuitum

Science.gov (United States)

Scroggins-Markle, Leslie; Kelly, Brent

2013-01-01

Background. Dermal piercings have recently become a fashion symbol. Common complications include hypertrophic scarring, rejection, local infection, contact allergy, and traumatic tearing. We report a rare case of Mycobacterium fortuitum following a dermal piercing and discuss its medical implications and treatments. Case. A previously healthy 19-year-old woman presented complaining of erythema and edema at the site of a dermal piercing on the right fourth dorsal finger. She was treated with a 10-day course of trimethoprim-sulfamethoxazole and one course of cephalexin by her primary care physician with incomplete resolution. The patient stated that she had been swimming at a local water park daily. A punch biopsy around the dermal stud was performed, and cultures with sensitivities revealed Mycobacterium fortuitum. The patient was treated with clarithromycin and ciprofloxacin for two months receiving full resolution. Discussion. Mycobacterium fortuitum is an infrequent human pathogen. This organism is a Runyon group IV, rapidly growing nontuberculous mycobacteria, often found in water,soil, and dust. Treatment options vary due to the size of the lesion. Small lesions are typically excised, while larger lesions require treatment for 2–6 months with antibiotics. We recommend a high level of suspicion for atypical mycobacterial infections in a piercing resistant to other therapies. PMID:24073343

A Dermal Piercing Complicated by Mycobacterium fortuitum

Directory of Open Access Journals (Sweden)

Trisha Patel

2013-01-01

Full Text Available Background. Dermal piercings have recently become a fashion symbol. Common complications include hypertrophic scarring, rejection, local infection, contact allergy, and traumatic tearing. We report a rare case of Mycobacterium fortuitum following a dermal piercing and discuss its medical implications and treatments. Case. A previously healthy 19-year-old woman presented complaining of erythema and edema at the site of a dermal piercing on the right fourth dorsal finger. She was treated with a 10-day course of trimethoprim-sulfamethoxazole and one course of cephalexin by her primary care physician with incomplete resolution. The patient stated that she had been swimming at a local water park daily. A punch biopsy around the dermal stud was performed, and cultures with sensitivities revealed Mycobacterium fortuitum. The patient was treated with clarithromycin and ciprofloxacin for two months receiving full resolution. Discussion. Mycobacterium fortuitum is an infrequent human pathogen. This organism is a Runyon group IV, rapidly growing nontuberculous mycobacteria, often found in water,soil, and dust. Treatment options vary due to the size of the lesion. Small lesions are typically excised, while larger lesions require treatment for 2–6 months with antibiotics. We recommend a high level of suspicion for atypical mycobacterial infections in a piercing resistant to other therapies.

Tattoos and body piercings in the United States: a national data set.

Science.gov (United States)

Laumann, Anne E; Derick, Amy J

2006-09-01

Little is known about the prevalence and consequences of body art application. Our aim was to provide US tattooing and body piercing prevalence, societal distribution, and medical and social consequence data. Random digit dialing technology was used to obtain a national probability sample of 253 women and 247 men who were 18 to 50 years of age. Of our respondents, 24% had tattoos and 14% had body piercings. Tattooing was equally common in both sexes, but body piercing was more common among women. Other associations were a lack of religious affiliation, extended jail time, previous drinking, and recreational drug use. Local medical complications, including broken teeth, were present in one third of those with body piercings. The prevalence of jewelry allergy increased with the number of piercings. Of those with tattoos, 17% were considering removal but none had had a tattoo removed. This was a self-reported data set with a 33% response rate. Tattooing and body piercing are associated with risk-taking activities. Body piercing has a high incidence of medical complications.

The design of gridded pierce guns for accelerators

International Nuclear Information System (INIS)

True, R.

1985-01-01

It is vital to employ ultra-laminar beams in electron linacs to maximize charge transport to the target. This paper presents numerical and experimental design techniques which have led to significant improvements in gridded Pierce guns used in microwave tubes and electron linacs. The paper concludes with two gun/injector concepts which have demonstrated enhanced performance over standard triode Pierce guns

Awareness of health risks associated with body piercing and ...

African Journals Online (AJOL)

Recently, there has been a widespread practice of tattooing and body piercing among youths despite the increased number of potential complications associated to the practice. This study aims to assess the awareness of health risk associated with body piercing and tattooing in Federal Polytechnic Auchi, Edo state.

A Simulation for the Punchless Piercing Process using Lemaitre Damage Model

International Nuclear Information System (INIS)

Lee, Sang Wook; Pourboghrat, Farhang

2005-01-01

The punchless piercing is a process that uses highly pressurized fluid instead of the conventional punch to make holes into the sheet metal. This process has many advantages over the conventional method for piercing various shaped holes into very thin strips of metal, composite, etc. An important cost advantage comes from not having to use a punch. Another important advantage comes from the top quality of pierced holes produced by punchless piercing, as no secondary finishing process will be needed for removing burrs typically found in conventional cutting processes. The ABAQUS/Explicit FEM code coupled with Lemaitre damage model has been used to more precisely characterize the punchless piercing process. The formulation adopted for this purpose focuses on the development of an efficient stress integration algorithm and development of a user material subroutine (VUMAT). For verification, the computed results have been compared with those of the experimental results in the literature and shown to be in good agreement with each other. The results obtained from this work are expected to be of significant interest to automotive and aerospace industries interested in using the punchless piercing process

Preliminary design for a pierce wiggler beamstick and addendum

International Nuclear Information System (INIS)

Pirkle, D.

1988-05-01

Lawrence Livermore National Laboratory is developing a fast tunable microwave source for operation at 250 GHz and 10kW peak output power. This report presents the preliminary design of a Pierce gun and solenoid magnet that will be compatible with a Pierce-wiggler electron beam formation system (beamstick). The beamstick will be an appropriate power source for a tunable gyro-BWO at 250 GHz. Figure 1 presents the major components of the Pierce-wiggler beamstick: the electron gun, solenoid, beam tunnel, wiggler, and vacuum valve. Figure 2 shows an artistic conception of how the beamstick will interface with the interaction magnet, modulator and gyro-BWO circuit at MIT. 15 figs

In Vitro Adherence of Oral Bacteria to Different Types of Tongue Piercings

OpenAIRE

Borges, Lucas Pereira; Ferreira-Filho, Julio Cesar Campos; Martins, Julia Medeiros; Alves, Caroline Vieira; Santiago, Bianca Marques; Valen?a, Ana Maria Gondim

2016-01-01

The purpose of this work was to verify in vitro adherence of E. corrodens and S. oralis to the surface of tongue piercings made of surgical steel, titanium, Bioplast, and Teflon. For this, 160 piercings were used for the count of Colony Forming Units (CFU) and 32 piercings for analysis under scanning electron microscopy. Of these, 96 (24 of each type) were individually incubated in 5?mL of BHI broth and 50??L of inoculum at 37?C/24?h. The other 96 piercings formed the control group and were i...

Periodontal health and lateral lower lip piercings: a split-mouth cross-sectional study.

Science.gov (United States)

Vilchez-Perez, Miguel Angel; Fuster-Torres, Ma Angeles; Figueiredo, Rui; Valmaseda-Castellón, Eduard; Gay-Escoda, Cosme

2009-07-01

To assess periodontal health of individuals with a lateral lower lip piercing and describe associated periodontal, dental and mucosal complications. A split-mouth study was performed in a sample of 50 patients with a lateral lower lip piercing who attended the Periodontal Pathology and Surgery Unit of the Dental School of the University of Barcelona. The patients underwent periodontal, dental and mucosal examination on both the piercing and the control sides. Piercing users were predominantly women (78%), with a mean age of 21.3 years (SD=4.4). The amounts of keratinized and attached gingiva were significantly lower on the piercing side, and the prevalence of gingival recession was higher (p=0.012). The canine and first bicuspid teeth were the most affected. Tooth fractures and cracks were more frequent on the piercing side (20%) when compared with the control (4%). Mucosal alterations were found in seven patients. The use of lateral lower lip piercings enhances gingival recession and reduces the amounts of keratinized and attached gingiva. These ornaments are also associated with tooth fractures and cracks.

Body piercings and posttraumatic stress disorder symptoms in young adults.

Science.gov (United States)

Bui, Eric; Rodgers, Rachel; Simon, Naomi M; Jehel, Louis; Metcalf, Christina A; Birmes, Philippe; Schmitt, Laurent

2013-02-01

Body piercing, which is prevalent in young adults, has been suggested to be associated with features usually related to posttraumatic stress disorder (PTSD) such as high-risk behaviours and psychopathological symptoms and might be motivated by a wish to deal with prior traumatic experiences. However, to date, no research has investigated the relationship between this practice and PTSD symptoms. The present research aims to investigate the possible relationship between body piercing and PTSD symptoms in French-speaking young adults. According to our results, having two or more body piercings was associated with a twofold increased risk for scoring above the cut-off score for PTSD on the PTSD checklist. Our findings suggest that two or more body piercings might serve as an identifiable marker for PTSD symptoms and may have important implications for clinical screening. Copyright © 2012 John Wiley & Sons, Ltd.

How Dr. Pierce Promoted Himself

Data.gov (United States)

Department of the Interior — This article is about Dr. Raymond V Pierce who owned St. Vincent Island before it became a refuge. The doctor painted advertisements for his famous “Woman’s Tonic”...

Perceptions of a photograph of a woman with visible piercings.

Science.gov (United States)

Martino, Sara

2008-08-01

To examine perceptions of people with visible piercings 105 undergraduate students from four different courses on campus (85 women, 20 men; M age=20.0 yr., SD=3.4) were randomly assigned to rate a photograph of a women with or without piercings on her eyebrow, ear, lip, and nose on 13 characteristics. Analysis indicated the model with visible piercings was rated less religious and more creative, artistic, and mysterious. These findings differ from previous findings on perception of tattoos. Implications and directions for research with different age groups are discussed.

Piercing the corporate veil

International Nuclear Information System (INIS)

Goodwin, L.M.

1992-01-01

This article addresses the potential problems an economically troubled subsidiary can cause a parent company and offers strategies for insulating the trouble through good business practices and careful planning. The topics of the article include corporations and limited liability, piercing the corporate veil, environmental cleanup liabilities, and avoiding trouble

Breast abscess following nipple piercing: a case report and review of the literature.

Science.gov (United States)

Kapsimalakou, Smaragda; Grande-Nagel, Isabell; Simon, Martin; Fischer, Dorothea; Thill, Marc; Stöckelhuber, Beate M

2010-12-01

Nipple piercing gains popularity and social acceptance within the last years, especially among young people. The medical literature reports an increase of complications in the post-piercing period. We report a case of a young woman, who presented with a light enlargement of the right breast and tenderness in the retroareolar region following nipple piercing 5 months ago. On ultrasound, a poorly marginated hypoechoic lesion was seen which was suspicious of an inflammation. After 1 week of antibiotic therapy, the mass had enlarged. As carcinoma could not be excluded, open biopsy was performed. Histology showed signs of chronic mastitis. To date, only a few reports of breast abscess after nipple piercing have been published. With the increasing prevalence of body piercing, it is important to document and report infections which may be discovered many months following piercing. Carcinoma can mimic breast abscess and should be included in the differential diagnosis.

Electromagnetic theory of the radiative Pierce instability

International Nuclear Information System (INIS)

Klochkov, D.N.; Rukhadze, A.A.

1997-01-01

The radiative Pierce instability of a relativistic electron beam in a waveguide stabilized by an infinite strong magnetic field is considered. the increment and conditions for instability development in a wide interval of the beam currents are determined on the basis of the perturbation theory. It is shown that the instability has always the Raman character and is threshold less in current for the Pierce boundary conditions. It permits sufficiently strictly to define the instability saturation level from breaking the resonance condition and to estimate the radiation efficiency

27 CFR 478.148 - Armor piercing ammunition intended for sporting or industrial purposes.

Science.gov (United States)

2010-04-01

... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Armor piercing ammunition... AMMUNITION COMMERCE IN FIREARMS AND AMMUNITION Exemptions, Seizures, and Forfeitures § 478.148 Armor piercing ammunition intended for sporting or industrial purposes. The Director may exempt certain armor piercing...

Transmission of Hepatitis C Virus Infection Through Tattooing and Piercing: A Critical Review

Science.gov (United States)

Tohme, Rania A.; Holmberg, Scott D.

2015-01-01

Tattoos and piercings are increasing, especially among youths, but the risk of hepatitis C virus (HCV) infection from these practices has not been adequately assessed and there are conflicting findings in the literature. We evaluated the risk of HCV infection from tattooing and piercing using the Meta-analysis of Observational Studies in Epidemiology (MOOSE) guidelines. Studies that specified the venue of tattooing and/or piercing showed no definitive evidence for an increased risk of HCV infection when tattoos and piercings were received in professional parlors. However, the risk of HCV infection is significant, especially among high-risk groups (adjusted odds ratio, 2.0–3.6), when tattoos are applied in prison settings or by friends. Prevention interventions are needed to avoid the transmission of hepatitis C from tattooing and piercing in prisons, homes, and other potentially nonsterile settings. Youths also should be educated on the need to have tattoos and piercings performed under sterile conditions to avoid HCV infection. PMID:22291098

First glimpse of the functional benefits of clitoral hood piercings.

Science.gov (United States)

Millner, Vaughn S; Eichold, Bernard H; Sharpe, Thomasina H; Lynn, Sherwood C

2005-09-01

In this exploratory study, we identify a positive relationship between vertical clitoral hood piercing and desire, frequency of intercourse and arousal. There were no dramatic differences in orgasmic functioning. Clinicians can play key roles in educating patients about potential outcomes and risks of genital piercing.

Educational intervention about oral piercing knowledge among dental students and adolescents at schools.

Science.gov (United States)

Junco, Pilar; Barrios, Rocío; Ruiz, María José; Bravo, Manuel

2017-10-01

Oral piercing can lead to complications and dentists are in a unique position to detect such complications. The purpose of this study was: (i) to assess the immediate and the long-term effects, on dental students, of a training programme about oral piercing knowledge; and (ii) to assess the immediate effect, on adolescents, of a single educational intervention session about oral piercing. A training programme for dental students (n = 66) was carried out in three phases. The last phase consisted of preparing and giving talks about oral piercing at schools, which was delivered by a random selection of dental students involved in the training programme. Dental students answered a questionnaire about oral piercing knowledge, before, immediately after (only the dental students included in the last phase) and 12 months after the training programme. Adolescents (n = 347) answered a survey about oral piercing knowledge before and after the talks. There were statistically significant differences in all comparison groups, except for the results in the 'before intervention' and in the '12 months after intervention' groups among dental students who had not prepared and given the talks to adolescents. Knowledge about oral piercing significantly improved among adolescents when comparing results before (mean questionnaire score = 3.0) and after (mean questionnaire score = 6.2) the talks. Oral piercing educational intervention had a favourable impact on adolescents and dental students, particularly among those who were more involved in the learning process. © 2017 FDI World Dental Federation.

Joule-Thomson effect in a Pierce electron gun

International Nuclear Information System (INIS)

Batalin, V.A.

1982-01-01

A model which can be investigated both by means of the system of Vlasov equations and by means of ideal gas state equation is proposed for evaluation of emittance growth in the Pierce electron gun of electron beam with the limiting small distribution rate and intended for electron cooling facilities. The assumption has been made that transverse emittance growth is different from the zero. Thermodynamical approach to the problem of electron beam propagation permits to evaluate the increase of its emittance. It is shown that the increase of the electron beam emittance in the Pierce electron gun is similar to Joule-Thompson effect for gases. The effect increases with the decrease of the beam initial temperature. The increase of the emittance can become essential even in hte perfect (without aberration) Pierce optics at beam transverse temperature of the order of 0.1 eV

Tattoos and Piercings: Attitudes, Behaviors, and Interpretations of College Students

Science.gov (United States)

Horne, Jenn; Knox, David; Zusman, Jane; Zusman, Marty E.

2007-01-01

Previously, in those segments of America where "proper" behavior was valued, tattoos and body piercings were examples of what Goffman identified as "stigma"--they spoiled one's identity. Today, tattoos and piercings have become more mainstream. This study reports the survey of 400 undergraduates at a large southeastern university. Regarding…

Electromagnetic theory of the radiative Pierce instability

International Nuclear Information System (INIS)

Klochkov, D.N.; Rukhadze, A.A.

1997-01-01

A study is made of the radiative Pierce instability of a relativistic electron beam propagating in a waveguide in the presence of an infinitely strong magnetic field. The perturbation theory is used to find the growth rates and conditions of instability over a broad range of the beam current. It is shown that, under the Pierce boundary conditions, the instability is Raman in nature, and there is no current threshold for the instability. This allows the instability saturation level to be accurately determined from the condition for the violation of the Cherenkov resonance and the radiation efficiency to be estimated

Equilibrium double layers in extended Pierce diodes

International Nuclear Information System (INIS)

Ciubotariu-Jassy, C.I.

1992-01-01

The extended Pierce diode is similar to the standard (or classical) Pierce diode, but has passive circuit elements in place of the short circuit between the electrodes. This device is important as an approximation to real bounded plasma systems. It consists of two parallel plane electrodes (an emitter located at x=0 and a collector located at x=l) and a collisionless cold electron beam travelling between them. The electrons are neutralized by a background of comoving massive ions. This situation is analysed in this paper and new equilibrium double layer (DL) plasma structures are obtained. (author) 6 refs., 3 figs

The Pierce diode with an external circuit: II, Non-uniform equilibria

International Nuclear Information System (INIS)

Lawson, W.S.

1987-01-01

The non-uniform (non-linear) equilibria of the classical (short circuit) Pierce diode and the extended (series RLC external circuit) Pierce diode are described theoretically, and explored via computer simulation. It is found that most equilibria are correctly predicted by theory, but that the continuous set of equilibria of the classical Pierce diode at α = 2π are not observed. The stability characteristics of the non-uniform equilibria are also worked out, and are consistent with the simulations. 8 refs., 22 figs., 3 tabs

Need for improved public health protection of young people wanting body piercing: evidence from a look-back exercise at a piercing and tattooing premises with poor hygiene practices, Wales (UK) 2015.

Science.gov (United States)

Perry, M; Lewis, H; Thomas, D Rh; Mason, B; Richardson, G

2018-04-30

Following a cluster of serious pseudomonas skin infections linked to a body piercing and tattooing premises, a look-back exercise was carried out to offer clients a screen for blood-borne viruses. Of those attending for screening 72% (581/809) had a piercing procedure in the premises of interest: 94 (16%) were under 16 years of age at the time of screening. The most common site of piercing was ear (34%), followed by nose (27%), nipple (21%) and navel (21%). A small number (<5) tested positive for hepatitis B and C, with no evidence this was linked to the premises. However, 36% (211/581) of clients reported a skin infection associated with their piercing. Using data from client forms, 36% provided a false age. Those aged under 16 years (OR 4.5, 95% CI 2.7-7.7) and those receiving a piercing at an intimate site (OR 2.1, 95% CI 1.3-3.6) were more likely to provide a false age. The findings from this exercise were used to support the drafting of the Public Health (Wales) Bill which proposed better regulation of piercing premises and the need to provide proof of being 18 years of age or over before having a piercing of an intimate site.

Experimental Characterization of Supercavitating Finds Piercing a Ventilated Supercavity

Science.gov (United States)

2013-08-05

01-2011 --31-07-2013 4. TITLE AND SUBTITLE Sa. CONTRACT NUMBER Experimental Characterization of Supercavitating Finds Piercing a Ventilated...presents the results from water tunnel experiments on supercavitating fins performed at the Garfield Thomas Water Tunnel of the Pennsylvania State...SUBJECT TERMS supercavitation , fins, cavity-piercing 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT u a. REPORT I~· ABSTRACT I~· THIS

Tattoos, piercings, and skin adornments.

Science.gov (United States)

Cronin, T A

2001-10-01

Tattoos, body piercings, and other skin adornments have a long and fascinating history, and continue to be prominent today. It is important for dermatology nurses to understand and to educate their patients regarding the dermatologic implications of tattooing, body piecing, and scarification.

Study on corrosion products from ear piercing studs

International Nuclear Information System (INIS)

Rogero, Sizue O.; Costa, Isolda; Saiki, Mitiko

2000-01-01

In this work instrumental neutron activation analysis was applied to analyse elemental composition of commercial gold coated ear piercing substrate and metals present in their corrosion products. The cytotoxic effect was also verified in these corrosion product extracts, probably, due to the lixiviation of Ni present in high quantity in their substrates. The analysis of gold coated ear piercing surfaces by scanning electron microscopy before and after the corrosion test showed coating defects and the occurrence of corrosion process. (author)

Body art: attitudes and practices regarding body piercing among urban undergraduates.

Science.gov (United States)

Schorzman, Cindy M; Gold, Melanie A; Downs, Julie S; Murray, Pamela J

2007-10-01

To describe the knowledge, attitudes, and practices of young adults toward body piercing. An anonymous 30-item survey was given to 103 undergraduate students at the campus health service of a large urban university. The questionnaire collected data on students' perceptions regarding the social acceptability of body piercing, their experiences with and attitudes toward this form of body art, and their knowledge of associated health risks. One hundred (97%) out of the 103 surveys distributed had sufficient data for analysis. Fifty-six percent of participants (age range, 17 to 25 years) reported having a body piercing at one time. Participants with a piercing were more likely to have a tattoo (OR, 4.13; 95% CI, 1.10-15.56; P=.04). The majority of participants (65 [78%]) reported "liking" body piercing on others, though a smaller percentage (45 [52%]) reported "liking" it on themselves (z=3.58, Part is acceptable on others, they feel it is less acceptable on themselves. Study participants displayed a high level of awareness regarding the potential health risks of body art, and, in fact, overestimate those risks. Implications for patient education are addressed.

Oral piercings and their dental implications: a mini review.

Science.gov (United States)

Singh, Amrinder; Tuli, Avantika

2012-05-01

Oral piercing has become common in young adults in recent years. Adolescents are characterized by a compulsive tendency to distinguish themselves from the rest; differences in clothes, hairstyle, or "decorative" details are used to this effect, based on highly-diverse criteria. Dental health-care professionals need to be aware of the procedures and risks involved with oral piercings and the social and psychological reasons that lead people to engage in this practice, regardless of the risks. The present article addresses oral mutilation practices, specifically from the oral health perspective, as it is of concern to dental professionals due to the health risks and oral complications associated with such practices. The various oral ornaments, piercing sites, and their implications, orally, as well as systemically, have been discussed. © 2011 Blackwell Publishing Asia Pty Ltd.

78 FR 78808 - Proposed Flood Elevation Determinations for Pierce County, Washington, and Incorporated Areas

Science.gov (United States)

2013-12-27

...-2013-0002; Internal Agency Docket No. FEMA-B-7748] Proposed Flood Elevation Determinations for Pierce... proposed rule concerning proposed flood elevation determinations for Pierce County, Washington, and... sources in Pierce County, Washington. On April 16, 2012, FEMA published a proposed rulemaking at 77 FR...

Oral and facial piercings: a case series and review of the literature.

Science.gov (United States)

López-Jornet, Pía; Navarro-Guardiola, Cristina; Camacho-Alonso, Fabio; Vicente-Ortega, Vicente; Yánez-Gascon, Josefa

2006-07-01

Piercing is popular among young people, who view this practice as a sign of marginality, beauty, or group identity. This study is performed on healthy individuals with oral and facial piercings. Seventy oral and facial piercings were evaluated (17 in the tongue, 13 in the lower lip, 18 in the nostril, 7 in the eyebrow, and 15 in the ear). A specifically designed protocol was used to assess possible complications (inflammatory reactions, pain, dental alterations). Nonparametric tests were used for the statistical analysis of the results. The general complications recorded comprised pain (60% of cases), inflammatory reactions (34.3%), bleeding (24%), dental fractures or fissures (20%), and gingival damage (26.7%). Tongue piercing is associated with pain, inflammatory reactions, and dental problems.

Face Piercing (Body Art): Choosing Pleasure vs. Possible Pain and Posture Instability

Science.gov (United States)

Matheron, Eric; Kapoula, Zoï

2011-01-01

Piercings (body art, i.e., with jewelry) are more and more widespread. They can induce various complications such as infections, allergies, headaches, and various skin, cartilage, or dental problems, and represent a public health problem. We draw attention to possible side effects resulting from face piercing complications observed on four young adults such as eye misalignment, decreased postural control efficiency, and non-specific chronic back pain with associated comorbidity. We found that the origin was pierced jewelry on the face. Removing the jewelry restored eye alignment, improved postural control, and alleviated back pain in a lasting way. We suggest that pierced facial jewelry can disturb somaesthetic signals driven by the trigeminal nerve, and thus interfere with central integration processes, notably in the cerebellum and the vestibular nucleus involved in postural control and eye alignment. Facial piercings could induce sensory–motor conflict, exacerbate, or precipitate a pre-existing undetermined conflict, which leads pain and complaints. These findings are significant for health; further investigations would be of interest. PMID:21960975

Genital piercings: diagnostic and therapeutic implications for urologists.

Science.gov (United States)

Nelius, Thomas; Armstrong, Myrna L; Rinard, Katherine; Young, Cathy; Hogan, LaMicha; Angel, Elayne

2011-11-01

To provide quantitative and qualitative data that will assist evidence-based decision making for men and women with genital piercings (GP) when they present to urologists in ambulatory clinics or office settings. Currently many persons with GP seek nonmedical advice. A comprehensive 35-year (1975-2010) longitudinal electronic literature search (MEDLINE, EMBASE, CINAHL, OVID) was conducted for all relevant articles discussing GP. Authors of general body art literature tended to project many GP complications with potential statements of concern, drawing in overall piercings problems; then the information was further replicated. Few studies regarding GP clinical implications were located and more GP assumptions were noted. Only 17 cases, over 17 years, describe specific complications in the peer-reviewed literature, mainly from international sources (75%), and mostly with "Prince Albert" piercings (65%). Three cross-sectional studies provided further self-reported data. Persons with GP still remain a hidden variable so no baseline figures assess the overall GP picture, but this review did gather more evidence about GP wearers and should stimulate further research, rather than collectively projecting general body piercing information onto those with GP. With an increase in GP, urologists need to know the specific differences, medical implications, significant short- and long-term health risks, and patients concerns to treat and counsel patients in a culturally sensitive manner. Targeted educational strategies should be developed. Considering the amount of body modification, including GP, better legislation for public safety is overdue. Copyright © 2011 Elsevier Inc. All rights reserved.

78 FR 4804 - Revision to the Washington State Implementation Plan; Tacoma-Pierce County Nonattainment Area

Science.gov (United States)

2013-01-23

... Washington State Implementation Plan; Tacoma- Pierce County Nonattainment Area AGENCY: Environmental... Tacoma-Pierce County nonattainment area for the 2006 fine particulate matter (PM 2.5 ) National Ambient... Rules.'' The updated PSCAA rules help implement the recommendations of the Tacoma-Pierce County Clean...

The prevalence of oral and peri-oral piercings in young adults: a systematic review.

Science.gov (United States)

Hennequin-Hoenderdos, N L; Slot, D E; Van der Weijden, G A

2012-08-01

To determine the prevalence of oral and/or peri-oral piercings in young adults based on a systematic review of the available literature. The MEDLINE-PubMed, Cochrane-CENTRAL and EMBASE databases were comprehensively searched through April 2012 to identify appropriate studies. The prevalence of oral and/or peri-oral piercings was evaluated in the general population, as well as by gender and by anatomical site. An independent screening of 1711 unique titles and abstracts resulted in 13 publications that met the eligibility criteria. In total, 11 249 participants (mean age, 20.6 years) were questioned and/or examined for oral and/or peri-oral piercings. In the studies that provided information concerning the presence of oral and/or peri-oral piercings, the prevalence varied from 0.8% to 12%, resulting in a mean prevalence of 5.2%. When examined based on anatomical site, the most common sites were the tongue (a prevalence of 5.6%), followed by the lip (1.5%). Oral piercings were more prevalent in women (5.6%) than men (1.6%). Among the populations that were studied, oral and/or peri-oral piercings were observed in a relatively small percentage (5.2%) of young adults. The prevalence was approximately four times higher among females when compared with males. On the basis of the literature, the tongue was the most common oral site for a piercing. Dental care professionals are in an ideal position to offer information regarding safe piercings and to provide advice regarding oral hygiene, aftercare and possible complications. © 2012 John Wiley & Sons A/S.

76 FR 23708 - Safety Zone; Pierce County Department of Emergency Management Regional Water Exercise, East...

Science.gov (United States)

2011-04-28

...-AA00 Safety Zone; Pierce County Department of Emergency Management Regional Water Exercise, East... the Regional Water Rescue Exercise. Basis and Purpose The Pierce County, Washington, Department of... to read as follows: Sec. 165.T13-0251 Safety Zone; Pierce County Department of Emergency Management...

75 FR 32855 - Safety Zone; Pierce County, WA, Department of Emergency Management, Regional Water Exercise

Science.gov (United States)

2010-06-10

...-AA00 Safety Zone; Pierce County, WA, Department of Emergency Management, Regional Water Exercise AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Pierce County, Washington, Department of... immediate action is necessary to ensure safety of participants in the Pierce County Regional Water Rescue...

Pseudomonas aeruginosa necrotizing chondritis complicating high helical ear piercing case report: clinical and public health perspectives.

Science.gov (United States)

Sandhu, Amonpreet; Gross, Melissa; Wylie, John; Van Caeseele, Paul; Plourde, Pierre

2007-01-01

Auricular or high helical ear piercing is an increasingly widespread fashion trend that is associated with an increased risk of potentially serious post-piercing complications such as auricular perichondritis. An 11-year-old girl developed severe auricular perichondritis following piercing of the upper helical cartilage of her ear at a hairdressing salon. Four days post piercing, she returned to the same salon for a haircut during which the pierced site was manipulated. She presented to her family physician and was treated unsuccessfully with oral cephalexin. She was then referred to an infectious diseases consultant and received antipseudomonal intravenous antibiotics with subsequent resolution. She also required debridement and removal of necrotic cartilage. Public health investigation evaluated potential sources of infection including the piercing gun, disinfectant solutions, and hair cutting spray water bottles. Final culture results of the ear helical aspirate grew Pseudomonas aeruginosa. Pseudomonas aeruginosa was also cultured from one of the water bottles used to wet her hair during the haircut. Although the pseudomonal strains from the water bottle were different than the infecting one, this contamination presents a potential source of wound infection. Damage to the helical cartilage caused by the piercing gun may also have contributed to this infection. Initial empiric antibiotic therapy for these kinds of infection must include anti-pseudomonal coverage. Auricular or high helical ear piercing using a piercing gun is not recommended.

Buneman instability and Pierce instability in a collisionless bounded plasma

International Nuclear Information System (INIS)

Iizuka, Satoru; Saeki, Koichi; Sato, Noriyoshi; Hatta, Yoshisuke

1983-01-01

A systematic experiment is performed on the Buneman instability and the Pierce instability in a bounded plasma consisting of beam electrons and stationary ions. Current fluctuations are confirmed to be induced by the Buneman instability. On the other hand, the Pierce instability gives rise to a current limitation. The phenomena are well explained by Mikhailovskii's theory taking account of ion motion in a bounded plasma. (author)

Body piercing: more than skin deep.

Science.gov (United States)

Hogan, L; Armstrong, M L

2009-09-01

Young adult populations (18-25 years of age) throughout the world have latched onto the mainstream trend of body piercing. Best health care practices for these individuals involves the knowledge of proper procedural techniques, postsite care, common complications, and treatment modalities.

Obituary: A. Keith Pierce, 1918 - 2005

Science.gov (United States)

Livingston, William Charles

2006-12-01

A. Keith Pierce was a solar astronomer who will be remembered for bringing the physics lab to the telescope and for his design of the world's largest solar telescope, the 1.5-meter McMath Telescope on Kitt Peak in Arizona. Born in Lincoln, Nebraska, he died of cancer in Tucson on 11 March 2005. He was eighty-six. His father, Tracy Pierce, had gone to graduate school in Berkeley, California, with a major in mathematics and a minor in astronomy. Fellow students of his class included Seth Nicholson and Donald Shane, people who were later to influence young Keith's life. Tracy Pierce received an appointment as an instructor, later Professor, of mathematics at the University of Nebraska in Lincoln. In his spare time dad Tracy became something of a telescope nut, following "the bible" —Albert Ingall's A.T.M (Amateur Telescope Making). His enthusiasm rubbed off on his son. Seth Nicholson, who became a famous Mt. Wilson Observatory astronomer, and Donald Shane from Berkeley, both stayed at the Pierce home while on their Sigma Xi lecture tours. After two years at Lincoln, followed by two more at Berkeley, Keith had earned his bachelor's degree in astronomy. During World War II, Dr. Shane became personnel director at the E.O. Lawrence Radiation Lab and arranged for Keith to work there at the cyclotron. A crash program to produce U235 from U238 was under way. At a crucial point in 1942 the cyclotron turned out the sought-after material. Much celebration ensued among the Rad Lab leaders. During this gala, Keith was on the night-shift and pretty much on his own. It was then that he turned a valve to the right, when left was called for, and the entire system went down. Shortly thereafter he was sent to Oak Ridge for the duration of the war. He cannot have been thought of badly, however, because he was invited to the Trinity test in New Mexico. (He didn't go because of the pending birth of his first son, John.) The year 1945 found Keith back in Berkeley working on his Ph

The Consequences of Tongue Piercing on Oral and Periodontal Tissues

Science.gov (United States)

Sakellari, Dimitra

2014-01-01

This paper is discussing the potential consequences that may arise by the implementation of piercing in the oral cavity and is also categorizing the consequences according to their extent and severity. Furthermore, this paper is reviewing some possible oral hygiene methods that can prove to be auxiliary in decreasing the potential complications arising from oral piercing. This literature review is based on articles published from 1985 to 2012. PMID:24616814

The Pierce diode with an external circuit. I. Oscillations about nonuniform equilibria

International Nuclear Information System (INIS)

Lawson, W.S.

1989-01-01

The nonuniform (nonlinear) equilibria of the classical (short circuit) Pierce diode and the extended (series RLC external circuit) Pierce diode are described, and the spectrum of oscillations (stable and unstable) about these equilibria are worked out. It is found that only the external capacitance alters the equilibria, though all elements alter the spectrum. In particular, the introduction of an external capacitor destabilizes some equilibria that are marginally stable without the capacitor. Computer simulations are performed to test the theoretical predictions for the case of an external capacitor only. It is found that most equilibria are correctly predicted by theory, but that the continuous set of equilibria of the classical Pierce diode at Pierce parameters (α=ω/sub pL//v 0 ) that are multiples of 2π are not observed. This appears to be a failure of the simulation method under the rather singular conditions rather than a failure of the theory

Daith Piercing in a Case of Chronic Migraine: A Possible Vagal Modulation

Directory of Open Access Journals (Sweden)

Angelo Cascio Rizzo

2017-11-01

Full Text Available Daith piercing is an ear piercing located at the crus of the helix, bilaterally. It is getting great consent on social media as alternative treatment in chronic migraine. No data about its efficacy and action are available in scientific literature so far. We present the case of a 54-year-old male patient suffering from refractory chronic migraine with medication-overuse, who substantially improved after bilateral ear daith piercing. His migraine was refractory to symptomatic as well as prophylactic therapies. He used to treat headaches with up to five symptomatic drugs per attack and had attempted several pharmacological preventive therapies, including Onabotulinumtoxin A. He also underwent detoxification treatments with intravenous steroids and diazepam, without durable benefit. At the time of daith piercing, the headache-related disability measures showed a HIT-6 score of 64, a MIDAS-score of 70, and a 11-point Box scale of 5. On his own free will, he decided to get a “daith piercing.” After that, he experienced a reduction of migraine attacks, which became very rare, and infrequent, less disabling episodes of tension-type headache (HIT-6 score of 56; MIDAS score of 27, 11-point Box scale of 3. Painkiller assumption has much decreased: he takes only one tablet of indomethacin 50 mg to treat tensive headaches, about four times per month. Beyond a placebo effect, we can speculate a vagal modulation as the action mechanism of daith piercing: a nociceptive sensory stimulus applied to trigeminal and vagal areas of the ear can activate ear vagal afferents, which can modulate pain pathways by means of projections to the caudal trigeminal nucleus, to the locus coeruleus and to the nucleus raphe magnus. Currently, daith piercing cannot be recommended as migraine treatment because of the lack of scientific evidence, the unquantified rate of failure and the associated risks with insertion. However, given the increasing but anecdotal evidence, we

Circuit effects on pierce instabilities, and double-layer formation

International Nuclear Information System (INIS)

Raadu, M.A.; Silevitch, M.B.

1982-11-01

The role of the Pierce instability in the formation of double layers is considered and compared with that of the Buneman instability. Pierce instabilities have been identified in a double-layer experiment, where they lead to ion trapping. Here the effects of external circuit elements are considered. In the case of immobile ions the onset criteria are unaffected, but in the unstable range the growth rate is reduced by the external impedance. Required experimental values of the circuit elements are estimated. The possible relevance to computer simulations is noted. (Authors)

75 FR 14467 - Notice of Inventory Completion: Pierce College District, Lakewood, WA, and Thomas Burke Memorial...

Science.gov (United States)

2010-03-25

... DEPARTMENT OF THE INTERIOR National Park Service Notice of Inventory Completion: Pierce College... completion of an inventory of human remains in the control of the Pierce College District, Lakewood, WA, and...), University of Washington, Seattle, WA. The human remains were most likely removed from Gig Harbor, Pierce...

In Vitro Study on the Adhesion and Colonization of Candida Albicans on Metal and Acrylic Piercings

Directory of Open Access Journals (Sweden)

Stamenov N.

2016-03-01

Full Text Available Oral/perioral piercing may provide an ideal environment for adhesion and colonization of microorganisms. The aim of this study is to perform an “in vitro” research on the capabilities of adhesion of Candida albicans on oral piercings made of plastic and metal. Acrylic and metal piercings were incubated with Candida albicans and then were observed using scanning electron microscopy under different magnifications. A lot of irregularities and roughness were observed on the surface of the plastic piercing unlike the surface of the metal one, which is not so rough. Nevertheless, the number of Candida albicans colonies was considerably larger on the scanned metal surface in comparison to the plastic surface. In vitro the metal surface of the piercing creates better environment for the adhesion and colonization of microorganisms than the acrylic. This could be attributed to the electrostatic forces that most likely attract Candida albicans to the metal piercing in the early stages of biofilm formation.

Face piercing (body art: choosing pleasure vs. possible pain and posture instability

Directory of Open Access Journals (Sweden)

Eric eMatheron

2011-09-01

Full Text Available Piercings (body art, i.e. with jewelry are more and more widespread. They can induce various complications such as infections, allergies, headaches, and various skin, cartilage, or dental problems which will lead to economic effects on health-care systems. We draw attention to other possible side effects resulting from face piercing complications such as eye misalignment, decreased postural control efficiency, and nonspecific chronic back pain. We found that the origin was pierced jewelry on the face. Removing the jewelry restored eye alignment, improved postural control, and alleviated back pain in a lasting way. This observation is important for health; further investigations would be of interest.

Process Monitoring and Fault Diagnosis for Piercing Production of Seamless Tube

Directory of Open Access Journals (Sweden)

Dong Xiao

2016-01-01

Full Text Available With the development of modernization, the application of seamless tube becomes widespread. As the first process of seamless tube, piercing is vital for the quality of the tube. The solid round billet will be transformed into a hollow shell after the piercing process. The defects of hollow shell cannot be cleared in the following process, so a monitoring model for the quality of the hollow shell is important. But the piercing process is very complicated, and a mechanism model is difficult to build between the qualities of the hollow shell and measurement variables. Furthermore, an intelligent model is needed. We established two piercing process monitoring and fault diagnosis models based on the multiway principal component analysis (MPCA model and the multistage MPCA model, respectively, and furthermore we made a comparison between these two concepts. We took three ways to divide the period based on process, K-means, and GA, respectively. Simulation experiments have shown that the multistate MPCA method has advantage over the MPCA method and the model based on the genetic algorithm (GA can monitor the process effectively and detect the faults.

Septic shock after posterior spinal arthrodesis on a patient with Scheuermann kyphosis and multiple body piercings.

Science.gov (United States)

Tsirikos, Athanasios I; Subramanian, Ashok Sridhara

2011-10-15

A case report. We report septic shock as postoperative complication following an instrumented posterior spinal arthrodesis on a patient with multiple body piercings. The management of this potentially catastrophic complication and outcome of treatment is been discussed. Body piercing has become increasingly more common because of change in culture or as a fashion statement. This has been associated with local or generalized ill effects including tissue injury, skin and systemic infections, and septic shock. There is no clear guideline pathway regarding removal and reinsertion of body piercings in patients who undergo major surgery. Complications following orthopedic or spinal procedures associated with body piercing have not been reported. We reviewed the medical notes and radiographs of an adolescent patient with Scheuermann kyphosis and multiple body piercings who underwent a posterior spinal arthrodesis and developed septic shock. Septic shock developed on postoperative day 2 after reinsertion of all piercings following the patient's request. The patient became systemically very unwell and required intensive medical management, as well as a total course of antibiotics of 3 months. The piercings remained in situ. She did not develop a wound infection despite the presence of bacteremia and spinal instrumentation. The patient had no new piercings subsequent to her deformity procedure. Two and a half years after spinal surgery she reported no medical problems, had a balanced spine with no loss of kyphosis correction and no evidence of nonunion or recurrence of deformity. The development of septic shock as a result of piercing reinsertion in the postoperative period has not been previously reported. This is an important consideration to prevent potentially life-threatening complications following major spinal surgery.

Reaksi Radang pada Lidah dengan Tongue Piercing (Kajian in vivo pada Lidah Tikus Jantan Sprague dawley

Directory of Open Access Journals (Sweden)

Feby Aryani

2015-10-01

Full Text Available Today tongue piercing has become increasingly popular in the society. Several case reports associated with tongue piercing have presented various complications, such as tooth fracture, viral infection (HIV, Hepatitis B and C, herpes simplex, Epstein Barr, fungal infection (Candida spp, pain altered taste, edema, paresthesis, gingival recession, prolonged bleeding, contact dermatitis. However, there is no scientific evidence to reveal hispathological change in tongue piercing. The aim of this study is to investigate the inflammation response to tongue piercing in Spraque Dawley rats. Eighteen Sprague Dawley rats were divided into one control group of 3 untreated rats and three experimental groups of 5 rats each, according to the duration of tongue piercing until the end of 1st week (A, 6th week (B and 12th week (C. At the end of treatments, the rats were anesthetized and sacrifices. Paraffin embedded tongue specimens were prepared for histological examination with H&E stainig. The number of inflammatory cells (PMN leukocytes, lymphocytes, macrophages was counted under light microscope. All experimental procedures were carried out under approval of study protocol by the Health and Medical Research Ethics Committee, Faculty of Medicine, Gadjah Mada University, Yogyakarta. The results of this study indicated that the number of PMN leukocytes, lymphocytes, and macrophages was increasing to the 1st week after tongue piercing. The number of lymphocytes and macrohpages was still increasing after 6th and 12th weeks of piercing, but the bumber of PMN leukocytes, lymphocytes, and macrophages between the groups of 1st, 6th, and 12th weeks after piercing. It was concluded that tongue piercing induce inflammatory response for 12 weeks in Sprague Dawley rats.

Application of Hard Coatings for Improved Tribological Performance of Blanking and Piercing Tools

DEFF Research Database (Denmark)

Podgornik, B.; Zajec, B.; Bay, Niels

2010-01-01

The aim of the present investigation was to examine the possibility of reducing lubrication and replacing expensive tungsten carbide material in blanking/piercing through introduction of hard tool coatings. Results show that hard PVD coatings can be successfully used in blanking/piercing applicat...

Body piercing, tattooing, self-esteem, and body investment in adolescent girls.

Science.gov (United States)

Carroll, Lynne; Anderson, Roxanne

2002-01-01

Postmodern perspectives of body piercing and tattooing interpret these as signifiers of the self and attempts to attain mastery and control over the body in an age of increasing alienation. In this exploratory study, 79 adolescent females, ages 15 to 18 (M = 16.08, SD = 1.36), completed the Coopersmith Self-Esteem Inventory (SEI; Coopersmith, 1981), the Beck Depression Inventory (BDI; Beck, 1978), the Body Investment Scale (BIS; Orbach & Mikulincer, 1998), and the State-Trait Anger Expression Inventory (STAXI-2; Spielberger, 1996). Analyses revealed that body piercings and tattoos were significantly correlated with trait anger (Angry Reaction subscale scores). A multiple regression analysis indicated that three of the dependent variables (Trait Anger-Reaction, BDI, and Feeling subscale of the BIS) were predictors of the total number of body piercings and tattoos.

Finite ion velocity effects on the stability of Pierce-like diodes

International Nuclear Information System (INIS)

Kolinsky, H.; Schamel, H.

1994-01-01

The stability of Pierce-like plasma diodes is investigated for arbitrary ion injection velocities. A recently developed integral formalism that accounts for ion dynamical effects is applied to derive a generalized dispersion relation for electrostatic perturbations. Its evaluation exhibits several new features, such as the appearance of growing oscillatory modes, which become Pierce--Buneman modes in the limit of initially resting ions, and of weakly damped oscillatory modes, which become undamped ion plasma oscillations in this limit. The stability of this bounded plasma system is shown to be controlled by the new control parameter at signga=α(1+at signgm) 1/2 , where α is the Pierce parameter and at signgm≡m ev 2 e0 /m iv 2 i0 the ratio of electron and ion kinetic energy at the emitter

Control electron beam oscillation regimes in Pierce diode with overcritical current

International Nuclear Information System (INIS)

Rempen, I.S.; Khramov, A.E.

2001-01-01

The effect of the delayed feedback on the complex oscillation regimes in the electron flux with the overcritical current in the Pierce diode is studied. The possibility of controlling the oscillation regimes through changing the feedback parameters is shown. The finite-dimensional model, describing the behavior of the electron flux in the Pierce diode hydrodynamic model, is constructed. Its behavior under the effect of the delayed feedback is studied [ru

People with Multiple Tattoos and/or Piercings Are Not at Increased Risk for HBV or HCV in The Netherlands

Science.gov (United States)

Urbanus, Anouk T.; van den Hoek, Anneke; Boonstra, Albert; van Houdt, Robin; de Bruijn, Lotte J.; Heijman, Titia; Coutinho, Roel A.; Prins, Maria

2011-01-01

Background Although published results are inconsistent, it has been suggested that tattooing and piercing are risk factors for HBV and HCV infections. To examine whether tattooing and piercing do indeed increase the risk of infection, we conducted a study among people with multiple tattoos and/or piercings in the Netherlands who acquired their tattoos and piercings in the Netherlands and/or abroad. Methods Tattoo artists, piercers, and people with multiple tattoos and/or piercings were recruited at tattoo conventions, shops (N = 182), and a biannual survey at our STI-outpatient clinic (N = 252) in Amsterdam. Participants were interviewed and tested for anti-HBc and anti-HCV. Determinants of HBV and HCV infections were analysed using logistic regression analysis. Results The median number of tattoos and piercings was 5 (IQR 2–10) and 2 (IQR 2–4), respectively. Almost 40% acquired their tattoo of piercing abroad. In total, 18/434 (4.2%, 95%CI: 2.64%–6.46%) participants were anti-HBc positive and 1 was anti-HCV positive (0.2%, 95%CI: 0.01%–1.29%). Being anti-HBc positive was independently associated with older age (OR 1.68, 95%CI: 1.03–2.75 per 10 years older) and being born in an HBV-endemic country (OR 7.39, 95%CI: 2.77–19.7). Tattoo- and/or piercing-related variables, like having a tattoo or piercing in an HBV endemic country, surface percentage tattooed, number of tattoos and piercings etc., were not associated with either HBV or HCV. Conclusions We found no evidence for an increased HBV/HCV seroprevalence among persons with multiple tattoos and/or piercings, which might be due to the introduction of hygiene guidelines for tattoo and piercing shops in combination with the low observed prevalence of HBV/HCV in the general population. Tattoos and/or piercings, therefore, should not be considered risk factors for HBV/HCV in the Dutch population. These findings imply the importance of implementation of hygiene guidelines in other countries. PMID

People with multiple tattoos and/or piercings are not at increased risk for HBV or HCV in The Netherlands.

Science.gov (United States)

Urbanus, Anouk T; van den Hoek, Anneke; Boonstra, Albert; van Houdt, Robin; de Bruijn, Lotte J; Heijman, Titia; Coutinho, Roel A; Prins, Maria

2011-01-01

Although published results are inconsistent, it has been suggested that tattooing and piercing are risk factors for HBV and HCV infections. To examine whether tattooing and piercing do indeed increase the risk of infection, we conducted a study among people with multiple tattoos and/or piercings in The Netherlands who acquired their tattoos and piercings in The Netherlands and/or abroad. Tattoo artists, piercers, and people with multiple tattoos and/or piercings were recruited at tattoo conventions, shops (N = 182), and a biannual survey at our STI-outpatient clinic (N = 252) in Amsterdam. Participants were interviewed and tested for anti-HBc and anti-HCV. Determinants of HBV and HCV infections were analysed using logistic regression analysis. The median number of tattoos and piercings was 5 (IQR 2-10) and 2 (IQR 2-4), respectively. Almost 40% acquired their tattoo of piercing abroad. In total, 18/434 (4.2%, 95%CI: 2.64%-6.46%) participants were anti-HBc positive and 1 was anti-HCV positive (0.2%, 95%CI: 0.01%-1.29%). Being anti-HBc positive was independently associated with older age (OR 1.68, 95%CI: 1.03-2.75 per 10 years older) and being born in an HBV-endemic country (OR 7.39, 95%CI: 2.77-19.7). Tattoo- and/or piercing-related variables, like having a tattoo or piercing in an HBV endemic country, surface percentage tattooed, number of tattoos and piercings etc., were not associated with either HBV or HCV. We found no evidence for an increased HBV/HCV seroprevalence among persons with multiple tattoos and/or piercings, which might be due to the introduction of hygiene guidelines for tattoo and piercing shops in combination with the low observed prevalence of HBV/HCV in the general population. Tattoos and/or piercings, therefore, should not be considered risk factors for HBV/HCV in the Dutch population. These findings imply the importance of implementation of hygiene guidelines in other countries.

People with multiple tattoos and/or piercings are not at increased risk for HBV or HCV in The Netherlands.

Directory of Open Access Journals (Sweden)

Anouk T Urbanus

Full Text Available BACKGROUND: Although published results are inconsistent, it has been suggested that tattooing and piercing are risk factors for HBV and HCV infections. To examine whether tattooing and piercing do indeed increase the risk of infection, we conducted a study among people with multiple tattoos and/or piercings in The Netherlands who acquired their tattoos and piercings in The Netherlands and/or abroad. METHODS: Tattoo artists, piercers, and people with multiple tattoos and/or piercings were recruited at tattoo conventions, shops (N = 182, and a biannual survey at our STI-outpatient clinic (N = 252 in Amsterdam. Participants were interviewed and tested for anti-HBc and anti-HCV. Determinants of HBV and HCV infections were analysed using logistic regression analysis. RESULTS: The median number of tattoos and piercings was 5 (IQR 2-10 and 2 (IQR 2-4, respectively. Almost 40% acquired their tattoo of piercing abroad. In total, 18/434 (4.2%, 95%CI: 2.64%-6.46% participants were anti-HBc positive and 1 was anti-HCV positive (0.2%, 95%CI: 0.01%-1.29%. Being anti-HBc positive was independently associated with older age (OR 1.68, 95%CI: 1.03-2.75 per 10 years older and being born in an HBV-endemic country (OR 7.39, 95%CI: 2.77-19.7. Tattoo- and/or piercing-related variables, like having a tattoo or piercing in an HBV endemic country, surface percentage tattooed, number of tattoos and piercings etc., were not associated with either HBV or HCV. CONCLUSIONS: We found no evidence for an increased HBV/HCV seroprevalence among persons with multiple tattoos and/or piercings, which might be due to the introduction of hygiene guidelines for tattoo and piercing shops in combination with the low observed prevalence of HBV/HCV in the general population. Tattoos and/or piercings, therefore, should not be considered risk factors for HBV/HCV in the Dutch population. These findings imply the importance of implementation of hygiene guidelines in other countries.

Mycobacterium fortuitum and anaerobic breast abscess following nipple piercing: case presentation and review of the literature.

Science.gov (United States)

Bengualid, Victoria; Singh, Veera; Singh, Herpreet; Berger, Judith

2008-05-01

Body piercing has become increasingly prevalent. We describe a case of breast infection with combined mycobacteria and anaerobe following nipple piercing, and review the literature. A 17-year-old female developed a breast abscess 4 months after nipple piercing. Cultures grew Prevotalla melangenica and Mycobacterium fortuitum. She required drainage and antibiotic treatment. Three months into her treatment she stopped her medications, relapsed, and required drainage. Two months later, on antimycobacteria therapy, her wound is healing. Review of the infectious complications of nipple piercing yielded 12 cases, 5 of which had a foreign body. The pathogens isolated (coagulase negative staphylococcus, mycobacteria, streptococcus, anaerobe, and gordonia) are not the usual organisms to be isolated from a breast abscess. This could result from reporting bias or the presence of a foreign body, the nipple ring. The three cases of mycobacteria, in addition to ours, are reviewed. The average age is 22 years. Three to 9 months elapsed between piercing and infection. All cases required drainage. Antimycobacteria therapy was used in three of the four cases for 10 days to 6 months. With the increasing prevalence of body piercing, it is important to document and report infections. We describe a breast abscess following nipple piercing with combined anaerobic and a mycobacterial pathogens. This underscores the need for obtaining cultures including anaerobes and mycobacteria.

Triple inverter pierce oscillator circuit suitable for CMOS

Science.gov (United States)

Wessendorf,; Kurt, O [Albuquerque, NM

2007-02-27

An oscillator circuit is disclosed which can be formed using discrete field-effect transistors (FETs), or as a complementary metal-oxide-semiconductor (CMOS) integrated circuit. The oscillator circuit utilizes a Pierce oscillator design with three inverter stages connected in series. A feedback resistor provided in a feedback loop about a second inverter stage provides an almost ideal inverting transconductance thereby allowing high-Q operation at the resonator-controlled frequency while suppressing a parasitic oscillation frequency that is inherent in a Pierce configuration using a "standard" triple inverter for the sustaining amplifier. The oscillator circuit, which operates in a range of 10 50 MHz, has applications for use as a clock in a microprocessor and can also be used for sensor applications.

Numerical simulations of semi-armor-piercing warhead penetrating aircraft carrier target

OpenAIRE

Dong Sangqaing; Cai Xinghui; Wang Guoliang; Gao Yunliang; Lu Jiangren

2015-01-01

FEM models of semi-armor-piercing warhead penetrating aircraft carrier deck are established, which are validated by related experimental data. Base on the models, the process of semi-armor-piercing warhead penetrating aircraft carrier deck with different incidence angles and attack angles are carried out. The results show that incidence angles have no remarkable influence on penetration capability of the projectile under the circumstance of zero attack angle. Ductility reaming damage mode and...

[Tattooing and body piercing--experiences from public health infection surveillance by a public health office].

Science.gov (United States)

Heudorf, U; Kutzke, G; Seng, U

2000-04-01

Tattooing and piercing have become increasingly popular in recent years. Both methods involve several medical risks, including transmission of infectious diseases. There are many reports on wound infections as well as transmission of hepatitis and human immunodeficiency viruses etc. According to these facts special hygiene regulations for tattooing and piercing have been published in Germany. Based on these regulations the public health department of the city of Frankfurt am Main, Germany, carried out special hygiene controls in such studios, one a year. Special tattoo or piercing exhibitions were also controlled. Results are reported here. Studios for tattoos or piercing were informed about hygiene rules and annually controlled from 1995-1999, using a special check list on cleanliness in the studios, disinfection and sterilisation procedures etc. For permission of tattoo and piercing exhibitions special hygiene orders were made mandatory. During 1995-1997 the absolute number of complaints decreased from 20 to 9, in spite of the increasing number of tattoo studios in Frankfurt am Main (from 6 to 10). This was true also of the tattoo and piercing exhibitions. After 1 year without control visits however, an increase of complaints was to be seen in 1999. According to our experience tattooists and piercers are interested in good hygiene practice. But our data showing the worsening hygiene data in one year without control visits also demonstrate the necessity of regular controls by the authorities. According to the reports on infectious complications of tattooing and piercing and according to the data reported here hygienic advice and control is an important task of Public Health services.

Circuit effects on Pierce instabilities revisited

International Nuclear Information System (INIS)

Kuhn, S.; Hoerhager, M.; Crystal, T.L.

1985-01-01

The problem of external circuit effects on Pierce diode instability studied by Raadu and Silevitch is reconsidered. The characteristic equation and the ensuing eigenfrequencies are found to disagree with those given by the authors above, which discrepancy is attributed to the fact that one of their boundary conditions is inconsistent with the model chosen. (author)

Genital piercings in the context of acute sexual assault.

Science.gov (United States)

Goldberg, Amy P

2017-11-01

After an acute sexual assault, children and adolescents often present for medical evaluation and treatment. Physicians have an important role in both the medical and legal components of these cases. Careful physical examination and questioning are important in determining the origin of the trauma. In the presented case report, genital trauma after an acute sexual assault was noted and attributed to the alleged offender's penis piercing. The genital trauma caused by the piercing provided physical evidence linking offender to victim and may have implications for the victim's risk of HIV infection and other blood borne pathogens. Copyright © 2017 Elsevier Ltd and Faculty of Forensic and Legal Medicine. All rights reserved.

27 CFR 478.149 - Armor piercing ammunition manufactured or imported for the purpose of testing or experimentation.

Science.gov (United States)

2010-04-01

... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Armor piercing ammunition... Armor piercing ammunition manufactured or imported for the purpose of testing or experimentation. The provisions of §§ 478.37 and 478.99(d) with respect to the manufacture or importation of armor piercing...

Design of Helical Self-Piercing Rivet for Joining Aluminum Alloy and High-Strength Steel Sheets

International Nuclear Information System (INIS)

Kim, W. Y.; Kim, D. B.; Park, J. G; Kim, D. H.; Kim, K. H.; Lee, I. H.; Cho, H. Y.

2014-01-01

A self-piercing rivet (SPR) is a mechanical component for joining dissimilar material sheets such as those of aluminum alloy and steel. Unlike conventional rivets, the SPR directly pierces sheets without the need for drilling them beforehand. However, the regular SPR can undergo buckling when it pierces a high-strength steel sheet, warranting the design of a helical SPR. In this study, the joining and forging processes using the helical SPR were simulated using the commercial FEM code, DEFORM-3D. High-tensile-strength steel sheets of different strengths were joined with aluminum alloy sheets using the designed helical SPR. The simulation results were found to agree with the experimental results, validating the optimal design of a helical SPR that can pierce high-strength steel sheets

Design of Helical Self-Piercing Rivet for Joining Aluminum Alloy and High-Strength Steel Sheets

Energy Technology Data Exchange (ETDEWEB)

Kim, W. Y.; Kim, D. B.; Park, J. G; Kim, D. H.; Kim, K. H.; Lee, I. H.; Cho, H. Y. [Chungbuk National University, Cheongju (Korea, Republic of)

2014-07-15

A self-piercing rivet (SPR) is a mechanical component for joining dissimilar material sheets such as those of aluminum alloy and steel. Unlike conventional rivets, the SPR directly pierces sheets without the need for drilling them beforehand. However, the regular SPR can undergo buckling when it pierces a high-strength steel sheet, warranting the design of a helical SPR. In this study, the joining and forging processes using the helical SPR were simulated using the commercial FEM code, DEFORM-3D. High-tensile-strength steel sheets of different strengths were joined with aluminum alloy sheets using the designed helical SPR. The simulation results were found to agree with the experimental results, validating the optimal design of a helical SPR that can pierce high-strength steel sheets.

[A PhD completed. Trauma to the gingiva by oral hygiene aids and oral piercings].

Science.gov (United States)

Hennequin-Hoenderdos, N L; Slot, D E; van der Weijden, G A

2017-12-01

Maintaining healthy teeth and soft oral tissue is important. Clinical research has shown manual toothbrushes with end-rounded filaments to cause significantly less gingival abrasions than those without end-rounding. Tapered filaments are an alternative to end-rounded filaments, but there is no solid evidence for their effectiveness. For the interdental spaces that the toothbrush doesn't reach, the use of special oral hygiene aids is advised. Clinical studies of gingivitis patients have shown that both interdental brushes and plastic-rubber bristles reduce gingivitis after 4 weeks of use. Plastic-rubber bristles result in a significant improvement in the tendency for interdental bleeding compared with interdental brushes, and they cause less abrasion of the gingiva. Other factors that can potentially traumatise soft and hard oral tissue are oral piercings. Wearing oral piercings is not without risk. Tongue and lip piercings are associated with the risk of gingival recession, and tongue piercings are associated with tooth fractures. To prevent the risk of complications, patients should be discouraged from wearing oral piercings.

Nipple piercing may be contraindicated in male patients with chest implants.

Science.gov (United States)

de Kleer, N; Cohen, M; Semple, J; Simor, A; Antonyshyn, O

2001-08-01

The authors present a man who underwent chest augmentation and nipple piercing. The patient developed chronic nipple infection, which led to unnecessary invasive diagnostic procedures, serious implant infection, and eventually urgent explantation. This unfavorable scenario illustrates the distinct features of the procedure in men, which includes close proximity of the nipple to the implant and reduced awareness by health care providers. Based on this case the authors recommend avoiding nipple piercing in men with chest implants.

Accuracy of thick-walled hollows during piercing on three-high mill

International Nuclear Information System (INIS)

Potapov, I.N.; Romantsev, B.A.; Shamanaev, V.I.; Popov, V.A.; Kharitonov, E.A.

1975-01-01

The results of investigations are presented concerning the accuracy of geometrical dimensions of thick-walled sleeves produced by piercing on a 100-ton trio screw rolling mill MISiS with three schemes of fixing and centering the rod. The use of a spherical thrust journal for the rod and of a long centering bushing makes it possible to diminish the non-uniformity of the wall thickness of the sleeves by 30-50%. It is established that thick-walled sleeves with accurate geometrical dimensions (nonuniformity of the wall thickness being less than 10%) can be produced if the system sleeve - mandrel - rod is highly rigid and the rod has a two- or three-fold stability margin over the length equal to that of the sleeve being pierced. The process of piercing is expedient to be carried out with increased angles of feed (14-16 deg). Blanks have been made from steel 12Kh1MF

Smithsonian Marine Station (SMS) at Fort Pierce

Science.gov (United States)

share current Smithsonian research on the plants and animals of the Indian River Lagoon and marine Smithsonian Marine Station at Fort Pierce Website Search Box Search Field: SMS Website Search Twitter SMS Home › Welcome to the Smithsonian Marine Station Homepage slideshow Who We Are... The

Pierce Lumber, Inc. - Clean Water Act Public Notice

Science.gov (United States)

The EPA is providing notice of a proposed Administrative Penalty Assessment against Pierce Lumber, Inc. (“Respondent”), located at 1629 13th Street, Belle Plaine, IA for alleged violations of its National Pollutant Discharge Elimination System permit (perm

The hole picture: risks, decision making, purpose, regulations, and the future of body piercing.

Science.gov (United States)

Armstrong, Myrna L; Koch, Jerome R; Saunders, Jana C; Roberts, Alden E; Owen, Donna C

2007-01-01

Can it be said that body piercing is ubiquitous, found across all socioeconomic groups? The major concentration is among adolescents and young adults 15 to 30 years old, in some studies, 50% of the population. Commonly identified physical risks are bleeding, tissue trauma, and bacterial infections; psychosocial risks are unhappiness, low self-esteem, and disappointment. The Health Belief Model is used to explain decision making; purposes for body piercing consistently center on personal expression (self-identity) and uniqueness. The international and US body piercing regulations are discussed, leading to the need for tracking complications globally and standardization of regulations. Proactive health education for clients and health providers remains a priority.

Oral parafunctions, piercing and signs and symptoms of temporomandibular disorders in high school students.

Science.gov (United States)

Mejersjö, Christina; Ovesson, Daniel; Mossberg, Birgitta

2016-01-01

The use of chewing-gum and piercing has become common among adolescents and might result in increased oral muscle activity and overloading. Aim To investigate the frequency of oral piercing and parafunctions in relation to symptoms of temporomandibular disorders (TMD) among adolescents. One hundred and twenty-four third level high school students, living either in a city or in a small town, enrolled in either science or media programmes, were included. The students completed a questionnaire regarding different parafunctions and symptoms of TMD. A clinical examination of the temporomandibular system and estimation of the tooth wear was performed in 116 students. Chewing-gum was used by 86% of the students (25% with a daily use) and 14% had an oral piercing. The science students used more chewing gum than the media students (p = 0.008), while the media students had more piercings (p headache, 18% for clicking, 7% for facial pain and 6% for difficulty to open wide. Girls reported more headaches (p = 0.007) and more severe symptoms (p = 0.003), had more medical consultations and used more analgesics (both p headache (p temporomandibular joints and muscles (both p headache and muscle tenderness (both p headache (p < 0.05) and tooth wear (p = 0.004). There is an association between use of chewing gum, nail biting, oral piercing, and symptoms of TMD.

People with multiple tattoos and/or piercings are not at increased risk for HBV or HCV in The Netherlands

NARCIS (Netherlands)

Urbanus, Anouk T.; van den Hoek, Anneke; Boonstra, Albert; van Houdt, Robin; de Bruijn, Lotte J.; Heijman, Titia; Coutinho, Roel A.; Prins, Maria

2011-01-01

Although published results are inconsistent, it has been suggested that tattooing and piercing are risk factors for HBV and HCV infections. To examine whether tattooing and piercing do indeed increase the risk of infection, we conducted a study among people with multiple tattoos and/or piercings in

Self-esteem, propensity for sensation seeking, and risk behaviour among adults with tattoos and piercings.

Science.gov (United States)

Hong, Bo-Kyung; Lee, Hyo Young

2017-12-13

Background: In recent years, increasing numbers of adults and adolescents have opted to undergo tattoo and piercing procedures. Studies among adolescents with tattoo and piercing have usually explored the relationship between one factor and the decision to have tattoos and/or piercings. The aim of this study was to determine relationships between body cosmetic procedures and selfesteem, propensity for sensation seeking, and risk behaviours among adults. Materials and Methods: The subjects were divided into two groups, i.e. , those with (n=429) and those without tattoos/piercings (n=237), and self-esteem, propensity for sensation seeking, and risk behaviour were compared between the two groups using self-report questionnaires. To analyse differences in self-esteem and the propensity for sensation seeking, general characteristics were statistically adjusted. In addition, general characteristics, self-esteem, and propensity for sensation seeking were statistically adjusted to determine differences in the propensity for risk behaviour between the two groups. Results: Significant differences were observed in age, marital status, income level, occupation, values or sensitivity to fashion, and educational level between the group with and that without tattoos/ piercings. There was no significant difference in self-esteem, whereas there were significant differences in the propensity for sensation seeking and risk behaviour between the two groups. Conclusions: Continuous attention to, and interest in, the increased incidence of tattooing and piercing are necessary, especially in terms of public interventions for health education and health promotion, as these forms of self-adornment are associated with behaviours that pose a risk to health.

Self-esteem, propensity for sensation seeking, and risk behaviour among adults with tattoos and piercings

Directory of Open Access Journals (Sweden)

Bo-Kyung Hong

2017-12-01

Full Text Available Background: In recent years, increasing numbers of adults and adolescents have opted to undergo tattoo and piercing procedures. Studies among adolescents with tattoo and piercing have usually explored the relationship between one factor and the decision to have tattoos and/or piercings. The aim of this study was to determine relationships between body cosmetic procedures and selfesteem, propensity for sensation seeking, and risk behaviours among adults. Materials and Methods: The subjects were divided into two groups, i.e., those with (n=429 and those without tattoos/piercings (n=237, and self-esteem, propensity for sensation seeking, and risk behaviour were compared between the two groups using self-report questionnaires. To analyse differences in self-esteem and the propensity for sensation seeking, general characteristics were statistically adjusted. In addition, general characteristics, self-esteem, and propensity for sensation seeking were statistically adjusted to determine differences in the propensity for risk behaviour between the two groups. Results: Significant differences were observed in age, marital status, income level, occupation, values or sensitivity to fashion, and educational level between the group with and that without tattoos/ piercings. There was no significant difference in self-esteem, whereas there were significant differences in the propensity for sensation seeking and risk behaviour between the two groups. Conclusions: Continuous attention to, and interest in, the increased incidence of tattooing and piercing are necessary, especially in terms of public interventions for health education and health promotion, as these forms of self-adornment are associated with behaviours that pose a risk to health.

The NASA/IPAC Teacher Archive Research Program (NITARP) at Pierce College

Science.gov (United States)

Mallory, Carolyn R.; Feig, M.; Mahmud, N.; Silic, T.; Rebull, L.; Hoette, V.; Johnson, C.; McCarron, K.

2011-01-01

Our team from Pierce Community College, Woodland Hills, CA, participated in the NASA/IPAC Teacher Archive Research Program (NITARP) this past year (2010). (NITARP is described in another poster, Rebull et al.) Our team worked with archival Spitzer, 2MASS, and optical data to look for young stars in CG4, part of the Gum Nebula; our scientific results are described in a companion poster, Johnson et al. In this poster, we describe more about what we learned and how we incorporated our NITARP experiences into the Pierce College environment. Students developed critical thinking skills and an ability to organize their data analysis and develop a mental "big picture" of what is going on in the CG4 region. The NITARP program is one of several "Active Learning" programs going on at Pierce, and the other programs are briefly summarized in this poster as well. This program was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by NASA Astrophysics Data Program and Archive Outreach funds.

Tatuagem, body piercing e a experiência da dor: emoção, ritualização e medicalização Tattoo, body piercing and the experience of pain: emotion, ritualization and medicalization

Directory of Open Access Journals (Sweden)

Vitor Sérgio Ferreira

2010-06-01

Full Text Available Configurando uma experiência física que desafia tabus físicos e sociais, a marcação do corpo através da tatuagem e body piercing tem sido bastante explorada no espaço público mediatizado em função das questões da dor voluntária e dos riscos de saúde individual e pública implicados. Ao pânico moral que já envolvia estas práticas, associadas a comportamentos tidos como socialmente desviantes, psico-patológicos ou criminosos, junta-se-lhes outra espécie de pânico social, o «pânico higienista», associado ao receio de contrair doenças infecto-contagiosas, ou de reagir aos materiais ou tintas encarnados. No sentido de ir além destes discursos, este artigo pretende analisar: por um lado, como os consumidores actuais de tatuagem e body piercing lidam com a dor que lhe está associada, que emoções enquadram essa sensação e que estratégias convocam no seu controlo; por outro lado, como é que os produtores de tatuagem e body piercing, perante novas e mais alargadas clientelas, lidam com exigência de disciplinas sanitárias na sua prática profissional. Em termos metodológicos, a informação empírica apresentada no artigo foi obtida em situação de entrevista em profundidade, de natureza biográfica, semi-estruturada na sua preparação e semi-diretiva na sua aplicação, a portadores de corpos multitatuados e multiperfurados, profissionais ou apenas consumidores de tatuagem e body piercing. Quinze entrevistados com diferentes perfis sociais foram recrutados em estúdios de tatuagem e body piercing de Lisboa e arredores, depois de intenso trabalho etnográfico nesses mesmos espaços.Being a physical experience that challenges sensitive and social taboos, body marking with tattoos and body piercing has been fairly explored in the public sphere regarding the issues of voluntary pain and the risks of individual and public health that are involved. Associated with the moral panic that is already linked to these practices

Satisfaction with life, self-esteem and evaluation of mental health in people with tattoos or piercings.

Science.gov (United States)

Pajor, Anna J; Broniarczyk-Dyła, Grażyna; Świtalska, Julita

2015-01-01

The aim of the study was to determine the level of life satisfaction and the various dimensions of self-esteem of pierced or tattooed people, and evaluate their mental health, compared to those without similar body modifications. The study was conducted on a sample of 449 people aged 16-58 years (mean age 26.7 ± 6.35), of whom 308 had body modifications: tattoo (n = 90), body piercings in places other than the ear lobe (n = 53), or both tattoos and piercings (n = 165). The control group consisted of 141 people without such modifications. The participants completed a questionnaire concerning their socio-demographic status, as well as the following psychological tests: The Satisfaction with Life Scale (SWLS), Multidimensional Self-Esteem Inventory (MSEI) and General Health Questionnaire (GHQ-28). Our findings show no significant differences in terms of life satisfaction between the group with tattoos or piercings and the control group. People with body modifications were characterized by higher self-esteem, with regard to their competence and leadership abilities. They also display fewer symptoms of social impairment and sleep disorders than the control group. Tattoos and piercings should not be considered as indicators of psychopathology.

A New Keyboard for the Bohlen-Pierce Scale

CERN Document Server

Nassar, Antonio

2011-01-01

The study of harmonic scales of musical instruments is discussed in all introductory physics texts devoted to the science of sound. In this paper, we present a new piano keyboard to make the so-called Bohlen-Pierce scale more functional and pleasing for composition and performance.

Prevalence and acceptance of tattoos and piercings: a survey of young adults from the southern German-speaking area of Central Europe.

Science.gov (United States)

Stieger, Stefan; Pietschnig, Jakob; Kastner, Cornelia K; Voracek, Martin; Swami, Viren

2010-06-01

The present study examined the prevalence and acceptance of body piercings and tattoos among a community sample from the southern German-speaking area of Central Europe. A total of 440 respondents completed information about their own body piercings and tattoos and reported whether they would be likely never to have piercings and tattoos in the future. Analyses indicated that 19.8 and 15.2% of respondents had piercings (excluding the earlobe) and tattoos, respectively. Women were more likely to have body piercings than men, but there were no sex differences in tattooing. There were also few sociodemographic differences in piercings and tattoos, and most participants reported being likely to consider body art in the future. These results are considered in relation to prevalence estimates of body art in other Western countries and the associated health risks.

Gingival recession is likely associated with tongue piercings.

Science.gov (United States)

Reynolds, Mark A

2012-09-01

A convenience sample of 60 subjects (27 male; 33 female) with tongue piercings (case group) and 120 subjects (43 male; 77 female) without tongue piercings (control group), ranging in age from 13 to 28 years, were identified from a mix of races living in a geographic area of low socioeconomic status in Brazil. Subjects were recruited from school groups and university centers between January 2008 and March 2009. For each case, 2 controls were selected on a consecutive basis from the same school according to criteria that included age, gender, smoking, and previous orthodontic treatment. Exclusion criteria included individuals with systemic diseases that might compromise the immune system, as well as antibiotics within 3 months or other medications that could affect the gingival tissues. The key study factor was the use or nonuse of tongue piercings (jewelry). The analysis compared periodontal parameters, such as the occurrence, location, and severity of gingival recession, in subjects with and without tongue jewelry. Gingival recession in the anterior lingual mandibular region was assessed as the primary outcome measure. The study sample was divided according to the presence or absence of gingival recession as well as the severity (1-2, 3, and ≥ 4 mm) of gingival recession. The average age of subjects was similar in the case and control groups (18.9 versus 17.7 years, respectively). Fractures of the anterior teeth were present significantly more frequently in cases than controls (26.7% versus 11.7%, respectively; P piercings (OR = 11.0, 95% confidence interval [CI] 5.02-24.09, P <.001). The severity of recession in this region was also significantly higher (calculated using an ordinal scale) in cases than in controls (P < .001). The final multivariate logistic regression model for occurrence of gingival recession included the variables tongue jewelry (yes/no), age, male gender, and the presence of bleeding on probing in the anterior region. Subjects with tongue

Medical tongue piercing – development and evaluation of a surgical protocol and the perception of procedural discomfort of the participants

Science.gov (United States)

2014-01-01

Background A system providing disabled persons with control of various assistive devices with the tongue has been developed at Aalborg University in Denmark. The system requires an activation unit attached to the tongue with a small piercing. The aim of this study was to establish and evaluate a safe and tolerable procedure for medical tongue piercing and to evaluate the expected and perceived procedural discomfort. Methods Four tetraplegic subjects volunteered for the study. A surgical protocol for a safe insertion of a tongue barbell piercing was presented using sterilized instruments and piercing parts. Moreover, post-procedural observations of participant complications such as bleeding, edema, and infection were recorded. Finally, procedural discomforts were monitored by VAS scores of pain, changes in taste and speech as well as problems related to hitting the teeth. Results The piercings were all successfully inserted in less than 5 min and the pain level was moderate compared with oral injections. No bleeding, infection, embedding of the piercing, or tooth/gingival injuries were encountered; a moderate edema was found in one case without affecting the speech. In two cases the piercing rod later had to be replaced by a shorter rod, because participants complained that the rod hit their teeth. The replacements prevented further problems. Moreover, loosening of balls was encountered, which could be prevented with the addition of dental glue. No cases of swallowing or aspiration of the piercing parts were recorded. Conclusions The procedure proved simple, fast, and safe for insertion of tongue piercings for tetraplegic subjects in a clinical setting. The procedure represented several precautions in order to avoid risks in these susceptible participants with possible co-morbidity. No serious complications were encountered, and the procedure was found tolerable to the participants. The procedure may be used in future studies with tongue piercings being a

REGULAR AND SPECIFIC FEATURES OF STRESSED AND DEFORMED STATE OF COMPOSITE MATERIAL WITH PIERCED OPENING

Directory of Open Access Journals (Sweden)

Yu. V. Vasilevich

2007-01-01

Full Text Available Mathematical model describing a dependence between deformations and stresses in the zone of prepreg piercing zone is given in the paper. Boundary conditions in the piercing zone in number of four functional dependences for prepregs can express either the given stresses or displacements, or describe boundary form, or express relations between stresses and displacements etc.

Instantaneous mechanical fastening of quasi-isotropic CFRP laminates by a self-piercing rivet

OpenAIRE

上田, 政人; 三宅, 崇太郎; 長谷川, 寛幸; 平野, 義鎭; Ueda, Masahito; Miyake, Sotaro; Hasegawa, Hiroyuki; Hirano, Yoshiyasu

2012-01-01

A modified self-piercing rivet (SPR) has been proposed to mechanically fasten CFRP laminates. The modified SPR consists of a rivet body and two flat washers. The two flat washers were used to suppress delamination in the CFRP laminates at the point of piercing. The advantages of the modified SPR for fastening CFRP laminates are instantaneous process time and low cost. Any pretreatments such as surface treatments or hole drilling are not required. In this study, the viability of the modified S...

Blanking and piercing theory, applications and recent experimental results

International Nuclear Information System (INIS)

Zaid, Adnan l O

2014-01-01

Blanking and piercing are manufacturing processes by which certain geometrical shapes are sheared off a sheet metal. If the sheared off part is the one required, the processes referred to as blanking and if the remaining part in the sheet is the one required, the process is referred to as piercing. In this paper, the theory and practice of these processes are reviewed and discussed The main parameters affecting these processes are presented and discussed. These include: the radial clearance percentage, punch and die geometrical parameters, for example punch and die profile radii. The abovementioned parameters on the force and energy required to effect blanking together with their effect on the quality of the products are also presented and discussed. Recent experimental results together with photomacrographs and photomicrographs are also included and discussed. Finally, the effect of punch and die wear on the quality of the blanks is alsogiven and discussed

The Development of Piezo-Driven Tools for Cellular Piercing

Directory of Open Access Journals (Sweden)

Changhai Ru

2016-10-01

Full Text Available Conventionally, intracytoplasmic sperm injection (ICSI in the mouse is conducted with piezo-drills that use a droplet of mercury for damping. The use of mercury causes concerns of toxicity and contamination. Although Fluorinert can be used as a substitute for mercury to reduce piezo-drill’s lateral vibration, the damping effect is not as satisfactory as mercury. In this work, a modified piezo-drill without using mercury was developed for the cellular piercing of mouse oocytes. Experimentally, appropriate parameters of driving voltage and frequency were obtained for the penetration of the zona pellucida of mouse oocytes. Furthermore, the lateral vibration of the injection pipette is lower than 1 μm in deionized water, which is not observable at 400 magnificence. With the piezo-drill without using mercury, the system performs the cellular piercing of mouse oocytes with a maximum cleavage rate of 94.7% (n = 117.

Pierce - University of Georgia | Division of Cancer Prevention

Science.gov (United States)

Principal Investigator: J. Michael Pierce, PhDInstitution: University of Georgia, Athens, GA Our project, Discovery and Development of Cancer Glycomarkers, is a joint collaboration between our laboratories at the CCRC, which include Karen Abbott, Lance Wells, Kevin Dobbin, and Mike Tiemeyer, those at TGen, in Phoenix, AZ, Daniel Von Hoff, Haiyong Han, and Mike Demeure, and

Dynamics of Pierce instability of hot electron beams

International Nuclear Information System (INIS)

Ignatov, A.M.; Novikov, V.N.

1986-01-01

On the base of a new method of numerical solution of the Vlasov equation evolution of complete function of electron distribution at the injection of hot electron beams into plasma bounded with electrodes is investigated. It is shown that despite the development of electrostatic instabilities in the system the currents can run substantially exceeding the Pierce critical current

Simulation of cylindrical Pierce diodes with radial flow

International Nuclear Information System (INIS)

Alves, M.V.; Gnavi, G.; Gratton, F.T.; Buenos Aires Univ.

1996-01-01

In this paper we study the electron instability and the non linear behaviour of cylindrical Pierce's diodes by particle simulation. We ignore here the ion contribution (ions are fixed at a 1/r density and given a very large mass) to give perspicuity to the electron dynamics, and to facilitate comparison with existing theory. (author). 8 refs., 10 figs

An efficient domain decomposition strategy for wave loads on surface piercing circular cylinders

DEFF Research Database (Denmark)

Paulsen, Bo Terp; Bredmose, Henrik; Bingham, Harry B.

2014-01-01

A fully nonlinear domain decomposed solver is proposed for efficient computations of wave loads on surface piercing structures in the time domain. A fully nonlinear potential flow solver was combined with a fully nonlinear Navier–Stokes/VOF solver via generalized coupling zones of arbitrary shape....... Sensitivity tests of the extent of the inner Navier–Stokes/VOF domain were carried out. Numerical computations of wave loads on surface piercing circular cylinders at intermediate water depths are presented. Four different test cases of increasing complexity were considered; 1) weakly nonlinear regular waves...

Blanking and piercing theory, applications and recent experimental results

International Nuclear Information System (INIS)

Zaid, A. I. O.

2013-01-01

Blanking and piercing are manufacturing processes by which certain geometrical shapes are sheared off a sheet metal. If the sheared off part is the one required, the processes referred to as blanking and if the remaining part in the sheet is the one required, the process is referred to as piercing. In this paper, the theory and practice of these processes are reviewed and discussed The main parameters affecting these processes are presented and discussed. These include: the radial clearance percentage, punch and die geometrical parameters, for example punch and die profile radii. The above mentioned parameters on the force and energy required to effect blanking together with their effect on the quality of the products are also presented and discussed. Recent experimental results together with photomacrographs and photomicrographs are also included and discussed. Finally, the effect of punch and die wear on the quality of the blanks is also given and discussed. (author)

The Pierce-diode approximation to the single-emitter plasma diode

International Nuclear Information System (INIS)

Ender, A. Ya.; Kuhn, S.; Kuznetsov, V. I.

2006-01-01

The possibility of modeling fast processes in the collisionless single-emitter plasma diode (Knudsen diode with surface ionization, KDSI) by means of the Pierce-diode is studied. The KDSI is of practical importance in that it is an almost exact model of thermionic energy converters (TICs) in the collisionless regime and can also be used to model low-density Q-machines. At high temperatures, the Knudsen TIC comes close to the efficiency of the Carnot cycle and hence is the most promising converter of thermal to electric energy. TICs can be applied as component parts in high-temperature electronics. It is shown that normalizations must be chosen appropriately in order to compare the plasma characteristics of the two models: the KDSI and the Pierce-diode. A linear eigenmode theory of the KDSI is developed. For both nonlinear time-independent states and linear eigenmodes without electron reflection, excellent agreement is found between the analytical potential distributions for the Pierce-diode and the corresponding numerical ones for the KDSI. For the states with electron reflection, the agreement is satisfactory in a qualitative sense. A full classification of states of both diodes for the regimes with and without electron reflection is presented. The effect of the thermal spread in electron velocities on the potential distributions and the (ε,η) diagrams is analyzed. Generally speaking, the methodology developed is usefully applicable to a variety of systems in which the electrons have beam-like distributions

Cis-12-oxo-phytodienoic acid stimulates rice defense response to a piercing-sucking insect.

Science.gov (United States)

Guo, Hui-Min; Li, Hai-Chao; Zhou, Shi-Rong; Xue, Hong-Wei; Miao, Xue-Xia

2014-11-01

The brown planthopper (BPH, Nilaparvata lugens) is a destructive, monophagous, piercing-sucking insect pest of rice. Previous studies indicated that jasmonic acid (JA) positively regulates rice defense against chewing insect pests but negatively regulates it against the piercing-sucking insect of BPH. We here demonstrated that overexpression of allene oxide cyclase (AOC) but not OPR3 (cis-12-oxo-phytodienoic acid (OPDA) reductase 3, an enzyme adjacent to AOC in the JA synthetic pathway) significantly increased rice resistance to BPH, mainly by reducing the feeding activity and survival rate. Further analysis revealed that plant response to BPH under AOC overexpression was independent of the JA pathway and that significantly higher OPDA levels stimulated rice resistance to BPH. Microarray analysis identified multiple candidate resistance-related genes under AOC overexpression. OPDA treatment stimulated the resistance of radish seedlings to green peach aphid Myzus persicae, another piercing-sucking insect. These results imply that rice resistance to chewing insects and to sucking insects can be enhanced simultaneously through AOC-mediated increases of JA and OPDA and provide direct evidence of the potential application of OPDA in stimulating plant defense responses to piercing-sucking insect pests in agriculture. © The Author 2014. Published by the Molecular Plant Shanghai Editorial Office in association with Oxford University Press on behalf of CSPB and IPPE, SIBS, CAS.

Piercing and Tattoos in Adolescents: Legal and Medico-legal Implications.

Science.gov (United States)

Conti, Adelaide; Bin, Paola; Casella, Claudia; Capasso, Emanuele; Fedeli, Piergiorgio; Salzano, Francesco Antonio; Terracciano, Lucia; Piras, Mauro

2018-01-01

Non-therapeutic body modification interventions are permitted within the limits of the use of one's own body that can be specified in the legal system. The authors take into consideration Italian regulation on tattooing and piercing, in particular in relation to adolescents. In Italy, several regions have therefore issued acts aimed at regulating the activities of tattoo and piercing also in reference to minors. Discussion. With regard to minors, the rules taken into account set precise limits in relation to the age criterion and subordinate the implementation of such practices to the provision of consent by legal representatives. If such practices are of an aesthetic nature, we cannot avoid considering the implications they have on health protection, and then adopt appropriate measures to protect the person who intends to undergo them, particularly in the case of minors.

Piercing and Tattoos in Adolescents: Legal and Medico-legal Implications

Science.gov (United States)

Conti, Adelaide; Bin, Paola; Casella, Claudia; Capasso, Emanuele; Fedeli, Piergiorgio; Salzano, Francesco Antonio; Terracciano, Lucia; Piras, Mauro

2018-01-01

Abstract Non-therapeutic body modification interventions are permitted within the limits of the use of one’s own body that can be specified in the legal system. The authors take into consideration Italian regulation on tattooing and piercing, in particular in relation to adolescents. Results In Italy, several regions have therefore issued acts aimed at regulating the activities of tattoo and piercing also in reference to minors. Discussion. With regard to minors, the rules taken into account set precise limits in relation to the age criterion and subordinate the implementation of such practices to the provision of consent by legal representatives. Conclusion If such practices are of an aesthetic nature, we cannot avoid considering the implications they have on health protection, and then adopt appropriate measures to protect the person who intends to undergo them, particularly in the case of minors. PMID:29675481

Characteristics of typical Pierce guns for PPM focused TWTs

International Nuclear Information System (INIS)

Harper, R.; Puri, M.P.

1989-01-01

The performance of typical moderate perveance Pierce type electron guns which are used in periodic permanent magnet focused traveling wave tubes are described with regard to adaptation for use in electron beam ion sources. The results of detailed electron trajectory computations for one particular gun design are presented

Theory and Examples of Mathematical Modeling for Fine Weave Pierced Fabric

Directory of Open Access Journals (Sweden)

ZHOU Yu-bo

2017-04-01

Full Text Available A mathematical abstraction and three-dimensional modeling method of three-dimensional woven fabric structure was developed for the fine weave pierced fabric, taking parametric continuity splines as the track function of tow. Based on the significant parameters of fine weave pierced fabric measured by MicroCT, eight kinds of the three-dimensional digital models of the fabric structure were established with two kinds of tow sections and four kinds of tow trajectory characteristic functions. There is a good agreement between the three-dimensional digital models and real fabric by comparing their structures and porosities. This mathematical abstraction and three-dimensional modeling method can be applied in micro models for sub unit cell and macro models for macroscopic scale fabrics, with high adaptability.

Psychosocial Adjustment of College Students with Tattoos and Piercings

Science.gov (United States)

Roberti, Jonathan W.; Storch, Eric A.

2005-01-01

The purpose of this study was to examine the association between body modification practices and psychosocial adjustment. Participants were 198 undergraduate college students, 129 of whom had I or more piercings (other than in earlobe) or tattoos. Findings showed that individuals with body modifications reported more symptoms of depression and…

Riscos e complicações do uso de piercing oral: uma revisão sistemática

Directory of Open Access Journals (Sweden)

José Wittor de Macêdo Santos

2017-02-01

Full Text Available Introdução: O uso de piercing oral tem despertado o interesse dos profissionais da Odontologia devido à associação com diversas complicações locais e sistêmicas. Objetivo: Este trabalho objetivou realizar uma revisão sistemática da literatura sobre riscos e complicações associadas ao uso de piercings orais e periorais. Métodos: Foi realizada uma pesquisa nas bases de dados MEDLINE, Google acadêmico e LILACS utilizando-se os seguintes critérios: artigos publicados na íntegra, no período de 2000 a 2016, em inglês, português e espanhol, case report, classical articles e reviews sobre o tema utilizando os seguintes descritores: body piercing, risks management, complications, risk e seus mesh terms. Resultados: Foram incluídos um total de 39 artigos relevantes que cumpriam com todos os critérios. Foi observado que os locais mais frequentemente utilizados para a colocação de piercing oral são os lábios e a língua. As complicações incluem inflamação, infecções locais e sistêmicas, lesões mucocutâneas, lesões vasculares, trauma dental, problemas periodontais, reações de hipersensibilidade, disfonia, deglutição e aspiração do piercing, e até morte etc. Conclusão: Conclui-se que o cirurgião dentista deve exercer um papel importante na orientação da população em geral sobre os riscos e as complicações associadas ao uso de piercing oral, visando evitar tal prática ou minimizar ao máximo os riscos e as complicações naqueles indivíduos que os possuem.

Prevention of gingival trauma : Oral hygiene devices and oral piercings

NARCIS (Netherlands)

Hoenderdos, N.L.

2017-01-01

Maintaining healthy teeth and soft oral tissues for life is important. Oral hygiene devices and oral piercings can damage the soft oral tissues. This thesis investigates the safety of manual toothbrushes, interdental brushes and rubber bristles interdental cleaners by analysing the gingival abrasion

Speckle Interferometry with the McMath-Pierce East Auxiliary Telescope

Science.gov (United States)

Harshaw, Richard; Ray, Jimmy; Douglass, David; Prause, Lori; Genet, Russell

2015-09-01

Engineering runs and tests on the McMath-Pierce 0.8 meter East Auxiliary telescope successfully configured the telescope for speckle interferometry observations of close visual double stars. This paper reports the procedure and results of the speckle analysis of four double stars.

[Development of public health regulations for tattooing and piercing and their realization].

Science.gov (United States)

Zolondek, U; Stelling, R; Hohmann, H

1998-03-01

In the course of prevention of infectious diseases the Public Health office of the city of Bremen has made increase efforts to improve hygienic conditions in tattoo and piercing studios. Defined and practicable hygienic standards have been developed and formulated for and in cooperation with the studios. Supported by intense personal counselling of the studios the hygienic standards are now--after 6-9 months--widely accepted and increasingly observed in practice. This programme has been--as a crucial point--supplemented by intense information for the general public and the customers of the studios in order to support (and control) the practice of hygienic standards in tattooing and piercing also from this point of view.

Piercing and tattoos in adolescents: legal and medico-legal implications

Directory of Open Access Journals (Sweden)

Conti Adelaide

2018-04-01

Full Text Available Non-therapeutic body modification interventions are permitted within the limits of the use of one’s own body that can be specified in the legal system. The authors take into consideration Italian regulation on tattooing and piercing, in particular in relation to adolescents.

Failure of aluminium self-piercing rivets: An experimental and numerical study

International Nuclear Information System (INIS)

Hoang, N.-H.; Hopperstad, O.S.; Langseth, M.; Westermann, I.

2013-01-01

Highlights: ► We investigated the fracture mechanism of AA7278-T6 aluminium self-piercing rivets. ► Fracture of AA 7278-T6 rivets during the riveting process is a complex phenomenon. ► Microstructure of AA7278-T6 has significant influence on the fracture mechanism. ► Increasing friction will change the deformation mode of the rivet. - Abstract: The present paper investigates the fracture mechanisms of AA7278-T6 aluminium self-piercing rivets under compression during the riveting process. First, a microstructure investigation was conducted to disclose the grain structure and the particle distribution of the extruded aluminium alloy. Transmission electron micrographs revealed precipitate free zones along grain boundaries. Uniaxial tensile tests in three different directions with respect to the extrusion direction revealed anisotropy of the alloy in strength and ductility and a change in fracture mode with tensile direction. The behaviour of the alloy under compression was studied experimentally using upsetting tests and self-piercing riveting tests. Micrographs of the deformed specimens provided insight into the influence of the microstructure on the deformation and fracture of the alloy under compression. Second, numerical analyses were carried out using a 2-D axisymmetric model in LS–DYNA in an attempt to investigate the role of different physical variables on the final failure of the rivet. The numerical results revealed that constituent particles, precipitate free zones, and friction between the rivet and plates are important for strain localisation and fracture in the rivet

The doctrine of piercing the corporate veil: Its legal and judicial ...

African Journals Online (AJOL)

, it is found that Ethiopian company law, though not sufficient, provides some clear grounds of piercing the corporate veil and certain possible grounds which may call for the application of the doctrine. It is also argued that Ethiopian courts ...

Comparative analysis of the tardigrade feeding apparatus: adaptive convergence and evolutionary pattern of the piercing stylet system

Directory of Open Access Journals (Sweden)

Roberto Guidetti

2013-03-01

Full Text Available A thorough analysis of the cuticular parts of tardigrade feeding apparatuses was performed in order to provide a more complete understanding of their evolution and their potential homologies with other animal phyla (e.g. Cycloneuralia and Arthropoda. The buccal- pharyngeal apparatuses of eight species belonging to both Eutardigrada and Heterotardigrada were studied using light and scanning electron microscopy. This study supports and completes a previous study on the relationships between form and function in the buccalpharyngeal apparatus of eutardigrades. The common sclerified structures of the tardigrade buccal-pharyngeal apparatus are: a buccal ring connected to a straight buccal tube, a buccal crown, longitudinal thickenings within the pharynx, and a stylet system composed of piercing stylets within stylet coats, and stylet supports. Specifically, heterotardigrades (Echiniscoidea have a narrow buccal tube; long piercing stylets, each with a longitudinal groove, that cross one another before exiting the mouth; pharyngeal bars and secondary longitudinal thickenings within the pharynx. In contrast, eutardigrades have stylets which are shorter than the buccal tube; Parachela have pharyngeal apophyses and placoids within the pharynx, while Apochela lack a buccal crown and cuticular thickenings within the pharynx, the buccal tube is very wide, and the short stylets are associated with triangular-shaped stylet supports. In both classes, when the piercing stylet tips emerge from the mouth to pierce food, the buccal tube opening is almost completely obstructed, which may hinder food uptake. In heterotardigrades, the crossing of the piercing stylets may further decrease food uptake, however this disadvantage may have been reduced in echiniscids by the evolution of a long buccal tube and long stylets able to run more parallel to the buccal tube. In contrast, eutardigrades evolved different strategies. In the order Apochela and in several

Experimental investigation of piercing of high-strength steels within a critical range of slant angle

Science.gov (United States)

Senn, S.; Liewald, M.

2017-09-01

Deep drawn parts often do have complex designs and, therefore, must be trimmed or punched subsequently in a second stage. Due to the complex part geometry, most punching areas do reveal critical slant angle (angle between part surface and ram movement direction) different to perpendicular direction. Piercing within a critical range of slant angle may lead to severe damage of the cutting tool. Consequently, expensive cam units are required to transform the ram moving direction in order to perform the piercing process perpendicularly to the local part surface. For modern sheet metals, however, the described critical angle of attack has not been investigated adequately until now. Therefore, cam units are used in cases in which regular piercing with high slant angle wouldn’t be possible. Purpose of this study is to investigate influencing factors and their effect on punch damage during piercing of high strength steels with slant angles. Therefore, a modular shearing tool was designed, which allows to simply switch die parts to vary cutting clearance and cutting angle. The target size of the study is to measure the lateral deviation of the punch which is monitored by an eddy current sensor. The sensor is located in the downholder and measures the lateral punch deviation in-line during manufacturing. The deviation is mainly influenced by slant angle of workpiece surface. In relation to slang angle and sheet thickness the clearance has a small influence on the measured punch deflection.

Tattooing, permanent makeup and piercing in Amsterdam; guidelines, legislation and monitoring

NARCIS (Netherlands)

Worp, J.; Boonstra, A.; Coutinho, R. A.; van den Hoek, J. A. R.

2006-01-01

Tattooing, body piercing and permanent makeup are increasing in popularity. Here, we describe the procedures involved in these practices, their risks, the content of guidelines developed by the Municipal Health Service in Amsterdam (the Netherlands) to reduce infection risks, the legislation in the

Influence of rivet to sheet edge distance on fatigue strength of self-piercing riveted aluminium joints

OpenAIRE

Li, Dezhi; Han, Li; Thornton, Martin; Shergold, Mike

2012-01-01

Self-piercing riveting (SPR) is one of the main joining methods for lightweight aluminium automotive body structures due to its advantages. In order to further optimise the structure design and reduce the weight but without compromising strength, reduction of redundant materials in the joint flange area can be considered. For this reason, the influence of rivet to sheet edge distance on the fatigue strengths of self-piercing riveted joints was studied. Five edge distances, 5 mm, 6 mm, 8 mm, 1...

Analysis of Ventilation Regimes of the Oblique Wedge-Shaped Surface Piercing Hydrofoil During Initial Water Entry Process

Directory of Open Access Journals (Sweden)

Ghadimi Parviz

2018-03-01

Full Text Available The suction side of a surface piercing hydrofoil, as a section of a Surface Piercing Propeller (SPP, is usually exposed to three phases of flow consisting air, water, and vapour. Hence, ventilation and cavitation pattern of such section during the initial phase of water entry plays an essential role for the propeller’s operational curves. Accordingly, in the current paper a numerical simulation of a simple surface piercing hydrofoil in the form of an oblique wedge is conducted in three-phase environment by using the coupled URANS and VOF equations. The obtained results are validated against water entry experiments and super-cavitation tunnel test data. The resulting pressure curves and free surface profiles of the wedge water entry are presented for different velocity ratios ranging from 0.12 to 0.64. Non-dimensional forces and efficiency relations are defined in order to present the wedge water entry characteristics. Congruent patterns are observed between the performance curves of the propeller and the wedge in different fully ventilated or partially cavitated operation modes. The transition trend from fully ventilated to partially cavitated operation of the surface piercing section of a SPP is studied and analyzed through wedge’s performance during the transitional period.

El uso del piercing en la cavidad bucal de adolescentes

Directory of Open Access Journals (Sweden)

Mercedes Haces Acosta

2014-04-01

Full Text Available Introducción: el uso del piercing intraoral en los adolescentes constituye una amenaza para la salud bucal. Objetivo: caracterizar el uso del piercing en la cavidad bucal de los adolescentes desde el punto de vista clínico y epidemiológico. Material y método: se realizó un estudio descriptivo transversal en el policlínico Dr. "Modesto Gómez Rubio" del municipio San Juan y Martínez, Pinar del Río, en el período comprendido de septiembre del 2011 a enero del 2013. El universo estuvo conformado por 400 adolescentes que acudieron al servicio del policlínico de los cuales 250 constituyeron la muestra, seleccionada a través del método aleatorio simple. Se les realizó el examen bucal, como medida de resumen se utilizaron el número absoluto y el porcentaje. Resultados: se pudo constatar que de 250 adolescentes examinados 34 presentaban perforaciones intraorales para un 13,6%, de ellos 24 son masculinos para un 70,59% y 10 femeninas representando el 29,41%, la edad de mayor uso de 15 y 18 años con 31 para un 21,85, los efectos nocivos de mayor frecuencia la gingivitis crónica con el 52,94% , seguidas por las fracturas dentarias con el 47,06%, el 97% respondieron que su motivación era la moda. Conclusiones: el uso del piercing en la cavidad bucal de los adolescentes estudiados se caracteriza por manifestarse con mayor frecuencia en las edades entre 15 y 18 años, con predominio del sexo masculino y el efecto nocivo más frecuente la enfermedad gingivitis crónica, seguidas por las fracturas dentarias, motivación la moda.

Online visual inspection of self-piercing riveting to determine the quality of the mechanical interlock

International Nuclear Information System (INIS)

Johnson, P; Cullen, J D; Al-Shamma'a, A I; Shaw, A

2007-01-01

Self-piercing riveting (SPR) has become a significant joining technique for the automotive applications of aluminium sheets. Quality control in this locale has progressed at an altogether more leisurely rate than other areas of mechanical joining (e.g. spotweld) and is underdeveloped. Testing the quality mechanical interlock is often achieved by destructive testing, which results in material and time wastage. The solution is online monitoring of the self-piercing riveting process to provide non-destructive testing of the mechanical interlock. Introducing sensors into the process facilitates real time data acquisition, which can be used to determine the quality of the joint

Tungsten versus depleted uranium for armour-piercing penetrators

International Nuclear Information System (INIS)

Johnson, P.K.

1983-01-01

Tungsten alloys have been widely used in the production of armour-piercing (AP) penetrators for defense purposes for the past 40 years. In recent years, however, depleted uranium (DU) has also been utilised for this application. Both materials exhibit high density and strength, two properties necessary for kinetic-energy projectiles to penetrate armour on tanks and other vehicles. The facts, however, support the view that tungsten can and should be utilised as the primary material for most armour-defeating ordnance applications. (author)

Tattoos and piercings: a review for the emergency physician.

Science.gov (United States)

Urdang, Michael; Mallek, Jennifer T; Mallon, William K

2011-11-01

Tattoos and piercings are increasingly part of everyday life for large sections of the population, and more emergency physicians are seeing these body modifications (BM) adorn their patients. In this review we elucidate the most common forms of these BMs, we describe how they may affect both the physical and psychological health of the patient undergoing treatment, and also try to educate around any potential pitfalls in treating associated complications.

Pierce-type dispersion relation for an intense relativistic electron beam interacting with a slow-wave structure

International Nuclear Information System (INIS)

Chen, C.

1994-01-01

A Pierce-type dispersion relation is derived for the interaction of an intense relativistic electron beam with a cylindrical slow-wave structure of arbitrary corrugation depth. It is shown that near a resonance, the Pierce parameter can be expressed in terms of the vacuum dispersion function and the beam current. The dispersion relation is valid in both the low-current (Compton) regime and the high-current (Raman) regime. The dispersion characteristics of the interaction, such as the linear instability growth rate and bandwidth, are analyzed for both regimes

Pierce gain analysis for a sheet beam in a rippled waveguide traveling-wave tube

International Nuclear Information System (INIS)

Carlsten, Bruce E.

2001-01-01

A Pierce-type mode analysis is presented for a planar electron beam in a rippled planar waveguide. This analysis describes the gain of a traveling-wave tube consisting of that geometry. The dispersion relation is given by the determinant of a matrix based on the coupling of different free-space modes through the boundary conditions. For the case of high-frequency, low-power amplifiers, the dispersion relation reduces to a simple cubic expression for the Compton regime, leading to three roots analogous to the Pierce solution of a standard traveling-wave tube. The analysis shows that this type of traveling-wave tube is capable of very high gain at extremely high frequencies

Teaching Business Law from Literature: Lessons to Be Learned from the Novel "Mildred Pierce" and the Road to Entrepreneurial Success

Science.gov (United States)

Labatt, Joseph; Forrest, Michael

2016-01-01

James M. Cain used his literary skills to incorporate business and business law concepts into a best-selling novel, "Mildred Pierce." Set in the Great Depression era, "Mildred Pierce" tells the story of a divorced woman who raises two daughters on her own, while building a restaurant and bakery business. Even in today's popular…

Characterization of Coatings on Steel Self-Piercing Rivets for Use with Magnesium Alloys

Science.gov (United States)

McCune, Robert C.; Forsmark, Joy H.; Upadhyay, Vinod; Battocchi, Dante

Incorporation of magnesium alloys in self-pierce rivet (SPR) joints poses several unique challenges among which are the creation of spurious galvanic cells and aggravated corrosion of adjacent magnesium when coated steel rivets are employed. This work firstly reviews efforts on development of coatings to steel fasteners for the diminution of galvanic corrosion when used with magnesium alloys. Secondly, approaches, based on several electrochemical methods, for the measurement of the galvanic-limiting effect of a number of commercially-available coatings to hardened 10B37 steel self-piercing rivets inserted into alloy couples incorporating several grades of magnesium are reported. Electrochemical impedance spectroscopy (EIS), zero-resistance ammeter (ZRA), corrosion potential and potential-mapping visualization methods (e.g. scanning vibrating electrode technique — SVET) are illustrated for the several rivet coatings considered.

["My body belongs to me"--cultural history and psychology of piercings and tattoos].

Science.gov (United States)

Stirn, A

2007-02-01

At present tattoos and piercings can no longer be regarded as destructive acts of self mutilation practized by fringe groups. Body modifications (BMs) are found in virtually all preindustrial cultures and have their roots in ancient myths and magical rituals. The prevalence of tattoos and piercings in the German population is 8.5% and 6.8%, respectively. Unemployed young men and young women who do not live in a firm partnership show particularly high prevalences. The incidence of BMs correlates positively with the personality trait "sensation seeking", particularly in young women. BMs often serve to express individuality and identity, and they also reflect changed attitude towards the human body and body art as well as following fashion trends. However, BMs can also provide valuable diagnostic indications for identity search and risk taking behaviour.

Tattoos and Piercings: A Review for the Emergency Physician

Science.gov (United States)

Urdang, Michael; Mallek, Jennifer T; Mallon, William K

2011-01-01

Tattoos and piercings are increasingly part of everyday life for large sections of the population, and more emergency physicians are seeing these body modifications (BM) adorn their patients. In this review we elucidate the most common forms of these BMs, we describe how they may affect both the physical and psychological health of the patient undergoing treatment, and also try to educate around any potential pitfalls in treating associated complications. PMID:22224126

The classical Pierce diode: Using particle simulations on linear and nonlinear behavior and final states

International Nuclear Information System (INIS)

Crystal, T.L.; Kuhn, S.; Birdsall, C.K.

1984-01-01

The classical Pierce diode is a simple 1-d system of two shorted metal plates, a cold beam of electrons injected from one side and a neutralizing background of rigid ions. While the plasma medium is technically stable, the finiteness of the Pierce system allows stable and unstable operation. It is usefully studied as an archetypical bounded plasma system, related e.g., to Q-machines, particle accelerators, thermionic converters. New particle simulations of the Pierce diode have successfully recovered many novel linear phenomena including the dominant linear eigenmodes (seen in the internal electrostatic fields), and the dominant and subdominant eigenfrequencies, (seen both in the internal electrostatics and in the external circuit current, J/sub ext/(t)). These simulation results conform very well to detailed predictions of a new linear analysis. The final (nonlinear) state recovered can show critical dependence on initial (linear perturbation) conditions, and can be made steady-state (d.c.) or periodic-oscillatory by simply changing the initial conditions by a factor of 10/sup -4/ or less. A third class of final state is also possible which has oscillations which seem to be nonperiodic

College students with tattoos and piercings: motives, family experiences, personality factors, and perception by others.

Science.gov (United States)

Forbes, G B

2001-12-01

The motives, family experiences, and personality characteristics of 341 college students with and without tattoos or piercings were studied. Participants completed Lippa's 1991 measures of the Big Five personality factors, a shortened version of the Body Cathexis Scale, a series of questions about their childhood experiences, and questions about risk-taking behaviors. In addition, reasons to have or not have body modifications and the perceptions of people with body modifications were investigated. Of the 116 men and 186 women, 25% and 33%, respectively, had at least one tattoo or body piercing. There were very few differences in the childhood experiences or personality characteristics of people with or without body modifications. Although people with body modifications did not differ from people without modifications on the Big Five personality measures, people without modifications perceived people with modifications as much different from themselves on these measures. These results indicate that tattoos and piercings in college students are associated with significantly more risk-taking behavior, greater use of alcohol and marijuana, and less social conformity. However, the traditional stereotype that body modifications are indicators of social or personal pathology does not describe contemporary college students.

To the theory of the Pierce instability of neutralized electron flows

International Nuclear Information System (INIS)

Ignatov, A.M.; Rukhadze, A.A.

1984-01-01

The Pierce instability of a nonrelativistic electron beam in an exernal fi inite magnetic field is investigated. Analytical expressions for a critical electron density in limiting cases of strong or weak magnetic field have been fo ound. The critical electron density is shown to increase with a decrease in the magnetic field strength

Complications of oral and peri-oral piercings: a summary of case reports

NARCIS (Netherlands)

Hennequin-Hoenderdos, N.L.; Slot, D.E.; van der Weijden, G.A.

2011-01-01

Objective: To systemically search the literature for case reports concerning adverse effects associated with oral and peri-oral piercings on oral health and/or general health. Material and methods: MEDLINE and the Cochrane Central Register of Controlled Trials (CENTRAL) were searched up through 1

27 CFR 478.37 - Manufacture, importation and sale of armor piercing ammunition.

Science.gov (United States)

2010-04-01

... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Manufacture, importation... COMMERCE IN FIREARMS AND AMMUNITION Administrative and Miscellaneous Provisions § 478.37 Manufacture, importation and sale of armor piercing ammunition. No person shall manufacture or import, and no manufacturer...

Piercing the corporate veil in swedish law : points of view de lege lata and de lege ferenda

OpenAIRE

Sundby, Anna

2000-01-01

The basic principle for limited companies is that the owners are not liable for the debts of the company. To protect the creditors of the company, however, a theory of personal liability for the owners has evolved, the so called piercing the corporate veil theory. For decades there have been disagreements wether or not it would be motivated to legislate the theory of piercing the corporate veil, and what this legislation might look like. The basic problems in my essay are: Is there a need to ...

Body art in adolescents: paint, piercings, and perils.

Science.gov (United States)

Desai, Neerav A; Smith, Michael L

2011-04-01

Tattoos and body piercings are becoming increasingly popular, particularly in adolescents and young adults. As the frequency of body art increases, so does the potential for adverse outcomes. Reasons for obtaining body art include need for individual expression and peer support. Techniques for tattooing are advancing, along with development of newer inks that may be less reactive. When patients become tired of their body art, or develop complications from the art itself, removal needs to be considered. Newer laser modalities may provide tattoo removal options with less scarring potential.

Pierced Lasso Bundles are a new class of knot-like motifs.

Directory of Open Access Journals (Sweden)

Ellinor Haglund

2014-06-01

Full Text Available A four-helix bundle is a well-characterized motif often used as a target for designed pharmaceutical therapeutics and nutritional supplements. Recently, we discovered a new structural complexity within this motif created by a disulphide bridge in the long-chain helical bundle cytokine leptin. When oxidized, leptin contains a disulphide bridge creating a covalent-loop through which part of the polypeptide chain is threaded (as seen in knotted proteins. We explored whether other proteins contain a similar intriguing knot-like structure as in leptin and discovered 11 structurally homologous proteins in the PDB. We call this new helical family class the Pierced Lasso Bundle (PLB and the knot-like threaded structural motif a Pierced Lasso (PL. In the current study, we use structure-based simulation to investigate the threading/folding mechanisms for all the PLBs along with three unthreaded homologs as the covalent loop (or lasso in leptin is important in folding dynamics and activity. We find that the presence of a small covalent loop leads to a mechanism where structural elements slipknot to thread through the covalent loop. Larger loops use a piercing mechanism where the free terminal plugs through the covalent loop. Remarkably, the position of the loop as well as its size influences the native state dynamics, which can impact receptor binding and biological activity. This previously unrecognized complexity of knot-like proteins within the helical bundle family comprises a completely new class within the knot family, and the hidden complexity we unraveled in the PLBs is expected to be found in other protein structures outside the four-helix bundles. The insights gained here provide critical new elements for future investigation of this emerging class of proteins, where function and the energetic landscape can be controlled by hidden topology, and should be take into account in ab initio predictions of newly identified protein targets.

Occupational accidents with piercing and cutting instruments in hospital nurses

OpenAIRE

Maria Helena Palucci Marziale; Maria Lúcia Carmo Cruz Robazzi

2004-01-01

Goals: To identify factors associated with occupational accidents caused by piercing and cutting instruments and to identify the consequences of these accidents.Methods: Descriptive field research. Data were obtained through semi-structured interviews with nurses who suffered accidents during one year in four hospitals at São Paulo State - Brazil. Results: factors associated with accidents were: work overload, poor quality material, inadequate disposal materials, professional negligence, clie...

Clinical research of the obstructive interface morphology of the inferior vena cava and the method of choice for taking the 'pierce membrane'

International Nuclear Information System (INIS)

Wei Ning; Zu Maoheng; Xu Hao; Gu Yuming; Li Guojun; Zhang Qingqiao; Xu Wei; Liu Hongtao

2008-01-01

Objective: To evaluate the relation between the morphology of the obstructive interface of the inferior vena cava (IVC)and the method of choice for taking the 'pierce membrane'. Methods: Interventional therapy was performed in 155 patients with obstruction of inferior vena cave during 2003-2005. The types of proximal part and distal end of obstruction were classified on the base of inferior vane cavography and divid[d into two groups accordingly. The principle of taking 'pierce membrane' whether as accending or descending route was decided by the morphology of the obstructive interface. The complication rates of taking 'pierce membrane' were compared between the two groups including one of 2003-2005 and another of 1990 -1997 as the control. Results: 155 cases were classified to 7 types according to morphology of inferior vena cava obstruction of the distal interface, the type of membrane with hole (32 cases), the dome type (50 cases), the taper type (17 cases), the horizontal type (13 cases), the inclination type (10 cases), the irregular type (19 eases)and the type of obstruction with communicating branches (14 cases). The morphologies of the proximal part of the obstruction were mainly divided into the type of membrane with hole, dome type, taper type and horizontal type. All the cases were successfully taken 'pierce membrane', without complication of pericardial effusion and abdominal bleeding. In control group of 150 Budd-Chiari syndrome cases with obstruction of inferior vena cava, the complications of taking 'pierce membrane' included mis puncture into pericardium (16 cases) and abdominal hemorrhage because of rupturing the inferior vena cava in 2 cases. Comparing the two groups, there was statistical significance with severe complications. Conclusions: 'Pierce membrane' interventional technique for the obstruction of inferior vena eava by coinciding the morphology of the obstructive interface with suitable piercing direction can not only raise successful

Pierce-type electron gun with a large concave LaB6 cathode

International Nuclear Information System (INIS)

Shintake, Tumoru; Ohba, Kunio; Matoba, Masaru; Katase, Akira

1981-01-01

A Pierce-type electron gun with a concave cathode of lanthanum hexaboride (LaB 6 ) 30 mm in diameter is described. At an accelerating voltage of 3 kV and a cathode temperature of 1340 0 C, a focussed electron beam of DC 300 mA was obtained. (author)

Improving Immunization Coverage in a Rural School District in Pierce County, Washington

Science.gov (United States)

Peterson, Robin M.; Cook, Carolyn; Yerxa, Mary E.; Marshall, James H.; Pulos, Elizabeth; Rollosson, Matthew P.

2012-01-01

Washington State has some of the highest percentages of school immunization exemptions in the country. We compared school immunization records in a rural school district in Pierce County, Washington, to immunization records in the state immunization information system (IIS) and parent-held records. Correcting school immunization records resulted…

Radicinin from Cochliobolus sp. inhibits Xylella fastidiosa, the causal agent of Pierce's Disease of grapevine.

Science.gov (United States)

Aldrich, Thomas J; Rolshausen, Philippe E; Roper, M Caroline; Reader, Jordan M; Steinhaus, Matthew J; Rapicavoli, Jeannette; Vosburg, David A; Maloney, Katherine N

2015-08-01

The fastidious phytopathogenic bacterium, Xylella fastidiosa, poses a substantial threat to many economically important crops, causing devastating diseases including Pierce's Disease of grapevine. Grapevines (Vitis vinifera L.) planted in an area under Pierce's Disease pressure often display differences in disease severity and symptom expression, with apparently healthy vines growing alongside the dying ones, despite the fact that all the vines are genetic clones of one another. Under the hypothesis that endophytic microbes might be responsible for this non-genetic resistance to X. fastidiosa, endophytic fungi were isolated from vineyard cvs. 'Chardonnay' and 'Cabernet Sauvignon' grown under high Pierce's Disease pressure. A Cochliobolus sp. isolated from a Cabernet Sauvignon grapevine inhibited the growth of X. fastidiosa in vitro. Bioassay-guided isolation of an organic extract of Cochliobolus sp. yielded the natural product radicinin as the major active compound. Radicinin also inhibited proteases isolated from the culture supernatant of X. fastidiosa. In order to assess structure-activity relationships, three semi-synthetic derivatives of radicinin were prepared and tested for activity against X. fastidiosa in vitro. Assay results of these derivatives are consistent with enzyme inactivation by conjugate addition to carbon-10 of radicinin, as proposed previously. Copyright © 2015 Elsevier Ltd. All rights reserved.

Determination and analysis of neutron flux distribution on radial Piercing beam port for utilization of Kartini research reactor

International Nuclear Information System (INIS)

Widarto

2002-01-01

Determination and analysis of neutron flux measurements on radial piercing beam port have been done as completion experimental data document and progressing on utilization of the Kartini research reactor purposes. The analysis and determination of the neutron flux have been carried out by using Au foils detector neutron activation analysis method which put on the radius of cross section (19 cm) and a long of radial piercing beam port (310 cm) Based on the calculation, distribution of the thermal neutron flux is around (8.3 ± 0.9) x 10 5 ncm -2 s -1 to (6.8 ± 0.5) x 10 7 ncm -2 s -1 and fast neutron is (5.0 ± 0.2) x 10 5 ncm -2 s -1 to (1.43 ± 0.6) x 10 7 ncm -2 s -1 . Analyzing by means of curve fitting method could be concluded that the neutron flux distribution on radial piercing beam port has profiled as a polynomial curve. (author)

Motivations for body piercings and tattoos - the role of sexual abuse and the frequency of body modifications.

Science.gov (United States)

Stirn, Aglaja; Oddo, Silvia; Peregrinova, Ludmila; Philipp, Swetlana; Hinz, Andreas

2011-12-30

Though the popularity of body modification increases, psychosocial data about practitioners of body piercing and tattooing are few and controversial. Most studies used semi-structured interviews and relatively small sample sizes. The aim of this study was to explore psychosocial background information (motivation, sexual abuse) for body modification practises based on a sufficiently large sample. A core group of 432 subjects with body piercings and/or tattoos (readers of a specialised magazine on body modification; mean age: 28 years) was investigated in this study using a 55-item questionnaire. The mean number of body modifications (piercings and tattoos) was nine. Participants with a history of sexual abuse and high users with more than 10 body modifications differed from those without these features with respect to several motivations and consequences of body modification. Participants with sexual abuse often stated that they wanted to overcome certain experiences, and high users were characterised by the feeling of an addiction to continue body modification. Clinicians should include questions on body modifications and their motives in anamnestic schedules. Copyright © 2011 Elsevier Ltd. All rights reserved.

Underwater piercing of a tunnel

Energy Technology Data Exchange (ETDEWEB)

Solvik, O.

1984-11-01

Norwegian consultants and contractors have been confronted with the task of blasting a final penetrating passage that will open the way for the water in a reservoir to flow through the hydropower turbines. Norway has almost certainly led in this area because of its special topographical and geological conditions. The glacial activities have created a number of natural and very deep lakes forming cheap reservoirs. Piercings at depths up to about 100 m have been performed. Problems tend to increase with depth, but unsuccessful penetration can occur at any depth. Secondary effects to consider include the danger of slides when the water level is lowered, wave erosion along the lowered new shoreline, erosion at all streams and rivers flowing into the lake and groundwater erosion in the newly exposed dry shoreline. Methods of penetration can be roughly divided into two categories: penetration against the open tunnel shaft (open system); and penetration against the closed tunnel shaft (closed system). 6 figures.

Design and development of a pierce electron gun

International Nuclear Information System (INIS)

Bhattacharjee, D.; Tiwari, R.; Nayak, B.; Tillu, A.R.; Jayaprakash, D.; Mishra, R.L.; Mittal, K.C.; Chakravarthy, D.P.; Gantayet, L.M.

2011-01-01

An electron gun is designed and developed using the Pierce configuration for the focusing electrode. Simulations were carried out using CST Particle Studio. The Gun is a thermionic type electron gun with indirect heating of the LaB6 cathode. The gun is capable of delivering a beam current of 500 mA at 50 kV with a beam size of less than 3.5 mm. It was tested on the gun test bench. This paper presents the gun design, particle simulations study, testing of the gun on test bench and integration with the ECIL 9 MeV linac. (author)

Body piercing and tattoos: a survey on young adults' knowledge of the risks and practices in body art

Directory of Open Access Journals (Sweden)

Caggiano Giuseppina

2011-10-01

Full Text Available Abstract Background The practice of tattooing and piercing has expanded in western society. In order to verify young adults' knowledge of the risk and practices related to body art, an investigation was conducted among freshmen of the University of Bari in the region of Apulia, Italy. Methods The study was carried out in the Academic Year 2009-2010 through an anonymous self-administered written questionnaire distributed to 1.656 freshmen enrolled in 17 Degree Courses. Results Of the 1.598 students included in the analysis, 78.3% believe it is risky to undergo piercing/tattoo practices. AIDS was indicated as a possible infection by 60.3% of freshmen, hepatitis C by 38.2%, tetanus by 34.3% and hepatitis B by 33.7% of the sample. 28.1% of freshmen were not aware that there are also non-infectious complications. 29% of the sample had at least one piercing or tattoo (this percentage does not include earlobe piercing in women. Of those with body art, the decision to undergo body art was made autonomously in 57.9% of the participants. 56.3% of freshmen undergoing body art had taken less than a month to decide. With regard to the reasons that led the sample to undergo body art, 28.4% were unable to explain it, 23.8% answered to improve their aesthetic aspect, 18.4% to distinguish themselves from others, 12.3% for fashion; 17.1% for other reasons. 25.4% of the sample declared that they had a piercing (79.8% female vs 20.2% male; ratio M/F 1:4.0. The average age for a first piercing was 15.3 years (range 10-27; SD ± 2.9. 9.6% of the sample declared that they have a tattoo (69.9% female vs 30.1% male; ratio M/F 1:2.3. The average age for a first tattoo was 17.5 years (range 10-26, SD ± 2.4. Conclusions Most of the freshmen knew about AIDS-related risks but not other potential risks. Body art is fairly common among young adults (especially women. The decision is often not shared with the family and is undertaken mostly without a specific reason or for the

Effect of the thermal spread in a beam on the radiative Pierce instability

International Nuclear Information System (INIS)

Klochkov, D.N.; Pekar, M.Yu.; Rukhadze, A.A.

1999-01-01

The linear dynamics of the radiative Pierce instability in a single plane in the case of the relativistic electron beam with T temperature stabilized through a strong magnetic field, is considered. It is shown that the instability increment decreases with the thermal spread growth [ru

Konsep Dasar Semiotika Dalam Komunikasi Massa Menurut Charles Sanders Pierce

OpenAIRE

Suherdiana, Dadan

2008-01-01

Sign or symbol in mass communication is not something with without makna. Nevertheless, it is not easy for anyone to can comprehend that sign. Minimally, that is a method for it, is named semiotic. Charles Sanders Pierce introduce pragmatism for this method. For him, semiotics have three researches area: syntactic semiotic, semantic semiotic and pragmatic semiotic. Sintaktic semiotic, teach the relation between sign with others sign; semantic semiotic, teach the relation and consequence in in...

Cross-Calibrating Sunspot Magnetic Field Strength Measurements from the McMath-Pierce Solar Telescope and the Dunn Solar Telescope

Science.gov (United States)

Watson, Fraser T.; Beck, Christian; Penn, Matthew J.; Tritschler, Alexandra; Pillet, Valentín Martinez; Livingston, William C.

2015-11-01

In this article we describe a recent effort to cross-calibrate data from an infrared detector at the McMath-Pierce Solar Telescope and the Facility InfraRed Spectropolarimeter (FIRS) at the Dunn Solar Telescope. A synoptic observation program at the McMath-Pierce has measured umbral magnetic field strengths since 1998, and this data set has recently been compared with umbral magnetic field observations from SOHO/MDI and SDO/HMI. To further improve on the data from McMath-Pierce, we compared the data with measurements taken at the Dunn Solar Telescope with far greater spectral resolution than has been possible with space instrumentation. To minimise potential disruption to the study, concurrent umbral measurements were made so that the relationship between the two datasets can be most accurately characterised. We find that there is a strong agreement between the umbral magnetic field strengths recorded by each instrument, and we reduced the FIRS data in two different ways to successfully test this correlation further.

MANAGING NEWLY ESTABLISHED PESTS: Cooperative efforts contained spread of Pierce's disease and found genetic resistance

Directory of Open Access Journals (Sweden)

George Bruening

2014-10-01

Full Text Available An outbreak of Pierce's disease of grapevine in the Temecula Valley in the late 1990s was one in a decades-long series of sporadic appearances of this infection in California. However, the new outbreak was qualitatively different because of the rapidity with which it spread in the vineyard and its appearance almost simultaneously at distant locations. The causative agent of Pierce's disease is the bacterium Xylella fastidiosa, and the distinct characteristics of the Temecula Valley outbreak were traced to the establishment of a new insect vector in California, the glassy-winged sharpshooter. Intensive and collaborative efforts among government agencies, industry and research institutions over 15 years have successfully contained the disease, and given scientists time to discover promising long-term potential solutions through genetic resistance.

[Body modifications and sexual health : Impact of tattoos, body piercing and esthetic genital plastic surgery on the sexual health of women and men].

Science.gov (United States)

Stirn, Aglaja Valentina; Zannoni, Ronja

2017-09-01

The present paper addresses the psychological impact of body modifications (e.g. tattoos, body piercing and esthetic genital plastic surgery) on the sexual health of individuals and refers to past and present research insights. Body modifications are understood as invasive interventions on the human body, especially interventions on the human skin which result in (semi-)permanent changes. Tattoos and body piercing (in particular genital piercing) positively affect the sexual satisfaction and the sexual appeal of men and women but there is a controversial association with high risk sexual behavior. Moreover, this article focuses on esthetic genital plastic surgery based on the increasing interest and insights of the impact on female genital self-perception and sexual behavior.

The incidence of complications associated with lip and/or tongue piercings: a systematic review

NARCIS (Netherlands)

Hennequin-Hoenderdos, N.L.; Slot, D.E.; Van der Weijden, G.A.

2016-01-01

Objective: This review determines the incidence of complications associated with lip and/or tongue piercings based on a systematic evaluation of the available literature. Material and Methods: MEDLINE–PubMed, Cochrane-CENTRAL and EMBASE databases were comprehensively searched through June 2014 to

Piercing of the containment shell of a reactor building in case of airplane crash

International Nuclear Information System (INIS)

Herzog, M.

1978-01-01

The author presents a simple calculation model for a realistic check of the piercing safety of containments of reactor buildings in case of airplane crash. Its application is illustrated by a numerical example (Starfighter crash on the Unterweser nuclear power plant). (orig.) [de

Control of Pierce's Disease by Phage.

Directory of Open Access Journals (Sweden)

Mayukh Das

Full Text Available Pierce's Disease (PD of grapevines, caused by Xylella fastidiosa subsp. fastidiosa (Xf, is a limiting factor in the cultivation of grapevines in the US. There are presently no effective control methods to prevent or treat PD. The therapeutic and prophylactic efficacy of a phage cocktail composed of four virulent (lytic phages was evaluated for control of PD. Xf levels in grapevines were significantly reduced in therapeutically or prophylactically treated grapevines. PD symptoms ceased to progress one week post-therapeutic treatment and symptoms were not observed in prophylactically treated grapevines. Cocktail phage levels increased in grapevines in the presence of the host. No in planta phage-resistant Xf isolates were obtained. Moreover, Xf mutants selected for phage resistance in vitro did not cause PD symptoms. Our results indicate that phages have great potential for biocontrol of PD and other economically important diseases caused by Xylella.

Tattoos and Piercing: A Review for the Emergency Department Physician

Directory of Open Access Journals (Sweden)

William K. Mallon

2011-05-01

Full Text Available Tattoos and piercings are increasingly part of everyday life for large sections of the population, and more emergency physicians are seeing these body modifications (BM adorn their patients. In this review we elucidate the most common forms of these BMs, we describe how they may affect both the physical and psychological health of the patient undergoing treatment, and also try to educate around any potential pitfalls in treating associated complications. [West J Emerg Med. 2011;12(4:393–398.

Improved piercing of microneedle arrays in dermatomed human skin by an impact insertion method

NARCIS (Netherlands)

Verbaan, F.J.; Bal, S.M.; Berg, van den D.J.; Dijksman, J.A.; Hecke, van M.; Verpoorten, H.; Berg, van den A.; Luttge, R.; Bouwstra, J.A.

2008-01-01

An electrical applicator was designed, which can pierce short microneedles into the skin with a predefined velocity. Three different shapes of microneedles were used, namely 300 µm assembled hollow metal microneedle arrays, 300 µm solid metal microneedle arrays and 245 µm hollow silicon microneedle

The prevalence of oral and peri-oral piercings in young adults: a systematic review

NARCIS (Netherlands)

Hennequin-Hoenderdos, N.L.; Slot, D.E.; van der Weijden, G.A.

2012-01-01

OBJECTIVE: To determine the prevalence of oral and/or peri-oral piercings in young adults based on a systematic review of the available literature. MATERIAL AND METHODS: The MEDLINE-PubMed, Cochrane-CENTRAL and EMBASE databases were comprehensively searched through April 2012 to identify appropriate

A 120kV IGBT modulator for driving a Pierce electron gun

International Nuclear Information System (INIS)

Earley, Lawrence M.; Brown, Richard W.; Carlson, Randolph L.; Ferguson, Patrick; Haynes, William B.; Kirbie, Hugh C.; Russell, Steven J.; Sigler, Floyd E.; Smirnova, Evgenya I.; Wheat, Robert M. Jr.

2004-01-01

An IGBT modulator has been developed to drive a 120 kV, 23 A Pierce electron gun. The modulator is capable of producing pulses up to 10 μs in width at repetition rates up to 10Hz with no active reset. The pulse rise time on the electron gun will be approximately 2 μs and the remaining 8 μs of flattop is tuned to have a ripple of less than 1 percent rms. The modulator technology was developed from a previous 50 kV prototype. The modulator consists of six boards, each with one EUPEC IGBT that drives a single common step-up transformer wound on METGLAS 2605SC cores. The six transformer cores share a common bi-filar output secondary winding. The modulator uses a fiber optic trigger system and has a high voltage cable output with an epoxy receptacle on the oil end and a ceramic receptacle on the vacuum end. The 120 kV electron gun was manufactured by MDS Co. and will be used to generate sheet electron beams from the standard pencil beam produced by the Pierce electron gun.

Improved piercing of microneedle arrays in dermatomed human skin by an impact insertion method

NARCIS (Netherlands)

Verbaan, F.J.; Bal, S.M.; van den Berg, D.J.; Dijksman, J.A.; van Hecke, M.; Verpoorten, H.; van den Berg, Albert; Lüttge, Regina; Bouwstra, J.A.

2008-01-01

An electrical applicator was designed, which can pierce short microneedles into the skin with a predefined velocity. Three different shapes of microneedles were used, namely 300 mu m assembled hollow metal microneedle arrays, 300 mu m solid metal microneedle arrays and 245 mu m hollow silicon

A triad of evidence for care of women with genital piercings.

Science.gov (United States)

Young, Cathy; Armstrong, Myrna L; Roberts, Alden E; Mello, Inola; Angel, Elayne

2010-02-01

To add three further dimensions of evidence for the care of women with genital piercings (GPs). Following a literature review, a cross-sectional study replicated previous work, using a web-based survey. This triad of evidence provides (a) descriptive quantitative data (N = 240) about women with GPs, (b) qualitative data about women with GPs, as well as (c) clinical observations from 60 healthcare providers (HCPs) who have cared for women with GPs. Three important findings about women with GPs were validated: (a) GPs were deliberate actions, sought for personal and sexual expression; (b) women with GPs treat piercings as a normal, meaningful part of their lives which produce sexual enhancement and expression; and (c) they continue to seek information about GP care from nonhealth providers. New data indicate that they have experienced depression (47%), abuse (physical 18%; emotional, 27%; sexual, 14%), and forced sexual activity (35%) in their lives. Several unsubstantiated assumptions about women with GPs are challenged with these data. GPs should not delay important health care. Health-protective, as well as health promotion, behaviors are important to reduce risks. Nurse practitioners (NPs) can become effective and resourceful advocates in three specific areas of care: (a) responsiveness to women with GPs, (b) collaborative decision making for the removal of jewelry, and (c) promotion of applicable patient education.

Piercing the sovereign ceiling: Issues in oil and gas project financing

International Nuclear Information System (INIS)

Coleman, T.S.

1998-01-01

In the oil and gas sector, corporations and governments face huge capital spending requirements in order to transform large resource discoveries into producing, cash-generating assets. A significant portion of this funding is expected to be done on a project finance basis, where bank lenders or bond investors take a secured position in financing a discrete project, with the expectation of being paid back by the cash flows from that project after completion. This trend is increasing demand for crediting rating services to provide credit ratings for these project financings. A key challenge is to analyze and rate credit-worthy projects in countries that have relatively low foreign currency sovereign ceilings due to economic, political, and financial risks. In most cases, the credit ratings for projects financed in currencies outside the host country are capped at the country''s foreign currency ceiling. However, in a few instances, mainly in the oil and gas sector, Moody''s has pierced the foreign currency ceiling or rated certain projects above the sovereign ratings of the countries where they are domiciled. The purpose of this article is to briefly explain some of the qualitative factors and considerations that have allowed Moody''s to pierce the ceiling in the oil and gas sector, with a focus on two recent and noteworthy projects: Ras Laffan Liquefied Natural Gas in Qatar and Petrozuata in Venezuela

Tatuajes y piercing: consideraciones sobre el alcance de una ordenanza municipal en la ciudad de Córdoba Tattoos and piercing: considerations about the scope of a municipal statue in Cordoba city

Directory of Open Access Journals (Sweden)

J M Verduzco

2008-09-01

Full Text Available Las ordenanzas municipales son herramientas legales, a través de las cuales los municipios o comunas ejercen un control sobre diversas actividades, algunas de las cuales como el caso de la práctica de tatuajes y piercing, pueden ser nocivas para la salud. La Municipalidad de Córdoba a través de la Ordenanza Nº 10962, sancionada el 6 de Octubre de 2005, intenta controlar esta ancestral práctica realizada sobre la piel humana. El presente trabajo tiene como finalidad analizar el articulado de esta Ordenanza y hacer algunas consideraciones sobre su utilidad en la prevención de enfermedades.Municipal statues are legal tools ratified by the municipal legislative power, stablishing rules in the corresponding scope. This rules have the aim of regulating different activities, over which the Municipality police power is excercised. Many of this activities are related to public health, because they can cause diseases in the population exposed to them. The practice of tattoing and piercing is one of this activities able to cause diseases. Due to this fact, the Municipality of Córdoba has sanctioned statue 10962 in order to control this ancestral practice.

The corrosion resistance of materials used for the manufacture of ear piercing studs

International Nuclear Information System (INIS)

Correa, O. V.; Saiki, M.; Rogero, S. O.; Costa, I.

2003-01-01

Nickel containing alloy shave been widely used as substrates for the manufacture of studs used for ear piercing. Unfortunately, nickel has also been related to the development of allergic contact dermatitis caused by skin sensitization due to Ni''2+ ions. Nickel ions can be leached out into the body fluids due to corrosion reactions. Defect free coatings are very difficult to produce, and therefore nickel free materials should be used as substrates of ear piercing studs, although the commercial alloys used usually contain this element. In this study, the corrosion resistance of two kinds of commercial studs prepared with nickel containing substrates and a titanium laboratory made stud was determined in a culture medium. The corrosion resistance of the studs was investigated by means of potentiodynamic polarization tests and electrochemical impedance spectroscopy as a function of immersion time in the culture medium. The elements that leached out into the medium due to corrosion reactions were analyzed by instrumental neutron activation analysis. The surfaces of the commercial gold-coated studs were examined by scanning electron microscopy and analyzed by energy dispersive spectroscopy, both before and after exposure to the culture medium. The cytotoxicity of the tested studs was also determined in the culture medium. (Author) 10 refs

Aerial Survey of Vessel Usage and Marine Animal Occurrence between Ft. Pierce and Key West Florida, 1992-2004

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — An aerial survey between Ft Pierce and Key West Florida was performed aboard US Coast Guard helicopters and fixed wing aircraft from September 1992 through March...

[Are nail polish, artificial nails and piercings allowed outside the surgical area?Recommendations for the perioperative policy

NARCIS (Netherlands)

Bucx, M.J.L.; Krijtenburg, P.; Scheffer, G.J.

2017-01-01

- An increasing number of patients wear nail polish, artificial nails or have piercings.- There is uncertainty about the perioperative management of these items, especially when located outside the surgical area.- In the majority of hospitals, patients are urged to remove these items preoperatively,

[Are nail polish, artificial nails and piercings allowed outside the surgical area?Recommendations for the perioperative policy].

Science.gov (United States)

Bucx, M J L; Krijtenburg, P; Scheffer, G J

2017-01-01

- An increasing number of patients wear nail polish, artificial nails or have piercings.- There is uncertainty about the perioperative management of these items, especially when located outside the surgical area.- In the majority of hospitals, patients are urged to remove these items preoperatively, under the assumption that they might cause problems.- Frequently, however, these items cannot be removed straightforwardly.- Nail polish and artificial nails only very rarely cause perioperative problems and therefore do not need to be removed pre-operatively.- The same applies to most piercings, except when located in or near the respiratory tract, if they have sharp endings or if they might cause problems as a result of the perioperative positioning of the patient.- Providing adequate information to the patient, knowledge about removal of these items and documentation of agreed arrangements are all important.- A national guideline concerning perioperative policy is urgently required.

When Paradigms Clash: Comments on Cameron and Pierce's Claim That Rewards Do Not Undermine Intrinsic Motivation.

Science.gov (United States)

Ryan, Richard M.; Deci, Edward L.

1996-01-01

The conclusion of J. Cameron and W. D. Pierce that rewards do not pose a threat to intrinsic motivation (1994) is a misrepresentation of the literature based on a flawed meta-analysis. Their analysis is more an attempt to defend behaviorist turf rather than meaningful consideration of relevant data and issues. (Author/SLD)

Appearance and culture: oral pathology associated with certain "fashions" (tattoos, piercings, etc.).

Science.gov (United States)

Chimenos-Küstner, Eduardo; Batlle-Travé, Inés; Velásquez-Rengijo, Sandra; García-Carabaño, Tauca; Viñals-Iglesias, Helena; Roselló-Llabrés, Xavier

2003-01-01

Humans are characterized by a compulsive tendency to distinguish themselves from the rest: differences in clothes, hairstyle or "decorative" details are used to this effect, based on highly diverse criteria. Such differentiating practices may be aimed at identification with a certain ideological group, for example, or with a concrete "fashion", and involve the use of jewelry, clothes, unusual attire, hairstyles, mutilations, etc. In this context, the present review addresses certain aspects of mutilation practices from both the general and specifically dental perspectives. Mutations imply permanent or lasting sectioning or lesions of a part of the body, and comprise skeletal deforming, dental mutilations, circumcision, ablation of the clitoris, scarification, tattoos, and perforations (particularly of the soft tissues). In this sense, tattoos and perforations or piercings are popular -- particularly among adolescents. This trend may be interpreted as a form of communication, identity expression, or as a type of body cult (i.e., so-called "body art"). Such mutilating practices reflect different motivations including fashion, rebelliousness, differentiation, sexual motives, the remembering of events, physical sensations, and ethnic or tribal influences. However, these practices can cause complications such as infections, laceration and soft and hard tissue damage, hypersensitivity reactions and other alterations of variable severity. Under these premises, questions are raised concerning the competence of those who perform these mutilations, the preventive measures adopted, and the legal conditions under which tattoos and piercings are made in our society.

Systematic study of a simple formation of pierce-electron-gun

International Nuclear Information System (INIS)

Saad, Hussein Mahmoud; Abd Elhamed, H.

1985-01-01

In this work the design and construction of a simple form of Pierce Gun are discussed. As the vacuum system used in the experiment was frequently exposed to open air, a solenoid filamentary-cathode was used. Hence, an effective magnetic field has been induced as the filament was heated, whereupon the electrons altered their paths. We, therefore investigated the change in beam intensity as influenced by the focusing electrode material, anode position, and extraction hole width. The focusing electrode effect was examined by comparing the measured emission current density with the corresponding calculated value. The studies showed that electrons follow a saddle-like shape in the gun inter-space. It was modified by the stainless steel focusing electrode

Piercing to the Pith of the Body: The Evolution of Body Mandala and Tantric Corporeality in Tibet

Directory of Open Access Journals (Sweden)

Rae Erin Dachille

2017-09-01

Full Text Available Buddhist tantric practitioners embrace the liminal status of the human body to manifest divine identity. In piercing to the pith of human embodiment, the tantric practitioner reconfigures the shape and contours of his/her reality. This article investigates the evolution of one particular technique for piercing to the pith of the body on Tibetan soil, a ritual practice known as body mandala [lus dkyil Skt. deha-maṇḍala]. In particular, it uncovers a significant shift of emphasis in the application of the Guhyasamāja body mandala practice initiated by champions of the emerging Gandenpa [Dga’ ldan pa] or Gelukpa [Dge lugs pa] tradition of Tibetan Buddhism, Tsongkhapa (1357–1419 and Mkhas grub rje (1385–1438. This article reveals some of the radical implications of ritual exegesis, ranging from the socioreligious aspects of securing prestige for a tradition to the ultimate soteriological goals of modifying the boundaries between life and death and ordinary and enlightened embodiment.

Seed Treatment Combined with a Spot Application of Clothianidin Granules Prolongs the Efficacy of Controlling Piercing-Sucking Insect Pests in Cotton Fields.

Science.gov (United States)

Zhang, Zhengqun; Zhao, Yunhe; Wang, Yao; Li, Beixing; Lin, Jin; Zhang, Xuefeng; Mu, Wei

2017-09-13

Seed treatments can directly protect cotton from early season piercing-sucking insect Aphis gossypii Glover but hardly provide long-term protection against Apolygus lucorum (Meyer-Dür). Therefore, the efficacy of clothianidin seed treatments combined with spot applications of clothianidin granules at the bud stage of cotton was evaluated to control piercing-sucking pests during the entire cotton growing season. Clothianidin seed treatments (at the rate of 4 g ai/kg seed) combined with a clothianidin granular treatment (even at low rate of 0.9 kg ai/ha) at the bud stage can effectively suppress A. gossypii and A. lucorum infestations throughout the seedling and blooming stages after planting and can improve cotton yield. The spot application of clothianidin granules also reduced the population densities of Bemisia tabaci (Gennadius). The dynamic changes of clothianidin residues demonstrated that the control efficacy of clothianidin against A. gossypii and A. lucorum might be related to the residues of this neonicotinoid in cotton leaves. This pest management practice provided long-term protection against cotton piercing-sucking pests for the entire growing season of cotton plants and could supplement the short-term control efficiency of clothianidin used as a seed treatment.

Potential of the McMath-Pierce 1.6-Meter Solar Telescope for Speckle Interferometry

Science.gov (United States)

Harshaw, Richard; Jones, Gregory; Wiley, Edward; Boyce, Patrick; Branston, Detrick; Rowe, David; Genet, Russell

2015-09-01

We explored the aiming and tracking accuracy of the McMath-Pierce 1.6 m solar telescope at Kitt Peak National Observatory as part of an investigation of using this telescope for speckle interferometry of close visual double stars. Several slews of various lengths looked for hysteresis in the positioning system (we found none of significance) and concluded that the 1.6 m telescope would make a useful telescope for speckle interferometry.

The influence of beam boundaries and velocity reduction on Pierce instability in laboratory plasmas

International Nuclear Information System (INIS)

Jovanovic, D.

1982-01-01

The influences of the beam-plasma boundary and of weak nonlinearities on the Pierce instability are investigated. It is shown that the finite width of the beam has negligible influence on both the stability of the system and growth rate. In the nonlinear regime the wavelength decreases and enhancement of the wave potential close to the beam inlet boundary is observed. The relationship between this effect and the formation of double layers is discussed. (Auth.)

Close Binary Star Speckle Interferometry on the McMath-Pierce 0.8-Meter Solar Telescope

Science.gov (United States)

Wiley, Edward; Harshaw, Richard; Jones, Gregory; Branston, Detrick; Boyce, Patrick; Rowe, David; Ridgely, John; Estrada, Reed; Genet, Russell

2015-09-01

Observations were made in April 2014 to assess the utility of the 0.8-meter solar telescope at the McMath-Pierce Solar Observatory at Kitt Peak National Observatory for performing speckle interferometry observations of close binary stars. Several configurations using science cameras, acquisition cameras, eyepieces, and flip mirrors were evaluated. Speckle images were obtained and recommendations for further improvement of the acquisition system are presented.

Compositions and Methods for the Treatment of Pierce's Disease

Energy Technology Data Exchange (ETDEWEB)

Gupta, Goutam (Santa Fe, NM)

2008-10-07

Chimeric anti-microbial proteins, compositions, and methods for the therapeutic and prophylactic treatment of plant diseases caused by the bacterial pathogen Xylella fastidiosa are provided. The anti-microbial proteins of the invention generally comprise a surface recognition domain polypeptide, capable of binding to a bacterial membrane component, fused to a bacterial lysis domain polypeptide, capable of affecting lysis or rupture of the bacterial membrane, typically via a fused polypeptide linker. In particular, methods and compositions for the treatment or prevention of Pierce's disease of grapevines are provided. Methods for the generation of transgenic Vitus vinefera plants expressing xylem-secreted anti-microbial chimeras are also provided.

Signal amplification and Pierce's instability in convergent particle beams

International Nuclear Information System (INIS)

Gnavi, G.; Gratton, F.T.

1988-01-01

Relativistic electron beams flowing between cylindrical and spherical electrodes (or solid angles sections of electrodes with these geometries) are studied. The beams are focused through the axis in the cylindrical case or through the center when spherical electrodes are considered. It is assumed that the external electrode is part of a device which accelerates the particles, the inner electrode is passive and removes the beams from the system. Electrons move by inertia in the interelectrode space, neutralized by an ion background. Properties of radial, small amplitude, perturbations are analyzed theoretically. Previous analyses of counterstreaming beams indicated that convergence modifies considerably the oscillations spectrum. Here, results on the amplification of signals when a beam is modulated at the external electrode are reported. Then, conditions for the instability of a beam when it flows through grounded electrodes (Pierce's instability of only one beam) are examined

Undersøgelse af pulsformers indflydelse på piercing og skæring i rummet

DEFF Research Database (Denmark)

Horstmann, Birgitte D.; Juhl, Thomas Winther

1999-01-01

Der er gennem en række laboratorieforsøg gennemført piercing og hjørneskæring i rummet (3D) i AISI 316 stål. Det er blevet konstateret at der kan opnås piercingtider på ned til ca. 1 sekund i det anvendte 5 mm pladestål. Tre forskellige pulsformer, Gated puls, Hyper puls og Super puls er blevet...

MEN ARE INNOCENT UNTIL PROVEN GUILTY - A COMMENT ON THE EXAMINATION OF SEX-DIFFERENCES BY PIERCE AND KIRKPATRICK

NARCIS (Netherlands)

PICKERSGILL, MJ; ARRINDELL, WA

1992-01-01

Pierce and Kirkpatrick (1992, Behaviour Research and Therapy, 30, 415-418) addressed the finding that men reported lower levels of fear than women in response to specific fear items and concluded on the basis of their experiment that this was because the men were lying. Their conclusion is

Chaos control in an electron beam with the supercritical current in the hydrodynamic model of the Pierce diode

International Nuclear Information System (INIS)

Koronovskij, A.A.; Rempen, I.S.; Khramov, A.E.

2003-01-01

The possibility of controlling the chaos in the electron beam with the supercritical current in the hydrodynamic model of the Pierce diode through the continuous feedback; the methodology of controlling the chaotic dynamics through stabilization of the unstable equilibrium state in the distributed active medium is proposed [ru

Laser assisted self-pierce riveting of AZ31 magnesium alloy strips

International Nuclear Information System (INIS)

Durandet, Y.; Deam, R.; Beer, A.; Song, W.; Blacket, S.

2010-01-01

Laser assisted self-piercing riveting (LSPR) is a new solid state process that enables low ductility materials to be mechanically joined without cracking. A simple but effective thermal analysis of LSPR is presented that enabled both the absorption of the laser radiation and heat transfer between plies to be determined. The approach was applied to experimental data for LSPR joining of AZ31B-H24 magnesium alloy sheets. It is shown that by using this analytical approach, the temperature at the onset of joining could be estimated and related to observations of joint quality. It was found that crack-free joints were produced at strip temperatures above 200 o C at the time of rivet insertion.

Lidar-revised geologic map of the Poverty Bay 7.5' quadrangle, King and Pierce Counties, Washington

Science.gov (United States)

Tabor, Rowland W.; Booth, Derek B.; Troost, Kathy Goetz

2014-01-01

For this map, we interpreted a 6-ft-resolution lidar digital elevation model combined with the geology depicted on the Geologic Map of the Poverty Bay 7.5' Quadrangle, King and Pierce Counties, Washington (Booth and others, 2004b). The authors of the 2004 map described, interpreted, and located the geology on the 1:24,000-scale topographic map of the Poverty Bay 7.5' quadrangle.

Can superconducting cosmic strings piercing seed black holes generate supermassive black holes in the early universe?

Energy Technology Data Exchange (ETDEWEB)

Lake, Matthew J. [The Institute for Fundamental Study, ' ' The Tah Poe Academia Institute' ' , Naresuan University, Phitsanulok (Thailand); Thailand Center of Excellence in Physics, Ministry of Education, Bangkok (Thailand); Harko, Tiberiu [Department of Physics, Babes-Bolyai University, Cluj-Napoca (Romania); Department of Mathematics, University College London (United Kingdom)

2017-10-15

The discovery of a large number of supermassive black holes (SMBH) at redshifts z > 6, when the Universe was only 900 million years old, raises the question of how such massive compact objects could form in a cosmologically short time interval. Each of the standard scenarios proposed, involving rapid accretion of seed black holes or black hole mergers, faces severe theoretical difficulties in explaining the short-time formation of supermassive objects. In this work we propose an alternative scenario for the formation of SMBH in the early Universe, in which energy transfer from superconducting cosmic strings piercing small seed black holes is the main physical process leading to rapid mass increase. As a toy model, the accretion rate of a seed black hole pierced by two antipodal strings carrying constant current is considered. Using an effective action approach, which phenomenologically incorporates a large class of superconducting string models, we estimate the minimum current required to form SMBH with masses of order M = 2 x 10{sup 9} M {sub CircleDot} by z = 7.085. This corresponds to the mass of the central black hole powering the quasar ULAS J112001.48+064124.3 and is taken as a test case scenario for early-epoch SMBH formation. For GUT scale strings, the required fractional increase in the string energy density, due to the presence of the current, is of order 10{sup -7}, so that their existence remains consistent with current observational bounds on the string tension. In addition, we consider an ''exotic'' scenario, in which an SMBH is generated when a small seed black hole is pierced by a higher-dimensional F-string, predicted by string theory. We find that both topological defect strings and fundamental strings are able to carry currents large enough to generate early-epoch SMBH via our proposed mechanism. (copyright 2017 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

Labrets: Piercing and Stretching on the Northwest Coast and in Amazonia

Directory of Open Access Journals (Sweden)

Jenny Reddish

2014-05-01

Full Text Available This article examines the practice of piercing and stretching the lip in order to accommodate a labret in two regions: the North American Northwest Coast (with historical examples from Tlingit and Haida groups and lowland South America (utilizing ethnographic writings on Suya and Kayapo communities. Drawing on the recent ‘sensorial turn’ within anthropology, I suggest an approach which goes beyond considerations of the symbolism of body ornaments and analyses how the infliction of pain they involve can be manipulated to serve social ends at a local level. Also discussed is the use of labrets within global ‘mediascapes’ (Appadurai 1996 by Kayapo and Northwest Coast groups in the context of self-representation and the politicization of ‘culture’ (Wright 1998.

Ventilation Inception and Washout, Scaling, and Effects on Hydrodynamic Performance of a Surface Piercing Strut

Science.gov (United States)

Harwood, Casey; Young, Yin Lu; Ceccio, Steven

2014-11-01

High-lift devices that operate at or near a fluid free surface (such as surface-piercing or shallowly-submerged propellers and hydrofoils) are prone to a multiphase flow phenomenon called ventilation, wherein non-condensable gas is entrained in the low-pressure flow, forming a cavity around the body and dramatically altering the global hydrodynamic forces. Experiments are being conducted at the University of Michigan's towing tank using a canonical surface-piercing strut to investigate atmospheric ventilation. The goals of the work are (i) to gain an understanding of the dominant physics in fully wetted, partially ventilated, and fully ventilated flow regimes, (ii) to quantify the effects of governing dimensionless parameters on the transition between flow regimes, and (iii) to develop scaling relations for the transition between flow regimes. Using theoretical arguments and flow visualization techniques, new criteria are developed for classifying flow regimes and transition mechanisms. Unsteady transition mechanisms are described and mapped as functions of the governing non-dimensional parameters. A theoretical scaling relationship is developed for ventilation washout, which is shown to adequately capture the experimentally-observed washout boundary. This material is based upon work supported by the National Science Foundation Graduate Student Research Fellowship under Grant No. DGE 1256260. Support also comes from the Naval Engineering Education Center (Award No. N65540-10-C-003).

Measurement of electron beams profile of pierce type electron source using sensor of used Tv tube

International Nuclear Information System (INIS)

Darsono; Suhartono; Suprapto; Elin Nuraini

2015-01-01

The measurement of an electron beam profile has been performed using electron beam monitor based on method of phosphorescent materials. The main components of the electron beam monitor consists of a fluorescent sensor using a used Tv tube, CCTV camera to record images on a Tv screen, video adapter as interface between CCTV and laptop, and the laptop as a viewer and data processing. Two Pierce-type electron sources diode and triode was measured the shape of electron beam profile in real time. Results of the experiments showed that the triode electron source of Pierce type gave the shape of electron beam profiles better than that of the diode electron source .The anode voltage is not so influential on the beam profile shape. The focused voltage in the triode electron source is so influence to the shape of the electron beam profile, but above 5 kV no great effect. It can be concluded that the electron beam monitor can provide real time observations and drawings shape of the electron beam profile displayed on the used Tv tube glass screen which is the real picture of the shape of the electron beam profile. Triode electron source produces a better electron beam profile than that of the diode electron source. (author)

Is piercing the veil contrary to high authority? A footnote to the "never-ending story"

OpenAIRE

Breakey, Peter

2013-01-01

Reviews the Supreme Court ruling in VTB Capital Plc v Nutritek International Corp, and reflects on Lord Neuberger's argument that piercing the corporate veil is "contrary to high authority". Examines the background to the decision, details the court's treatment of the earlier House of Lords ruling in Woolfson v Strathclyde RC, and analyses the ratio of Woolfson and that of the House of Lords judgment in Salomon v Salomon. Considers the opportunity for the Supreme Court to provide further clar...

Testing of the McMath-Pierce 0.8-Meter East Auxiliary Telescope's Acquisition and Slewing Accuracy

Science.gov (United States)

Harshaw, Richard; Ray, Jimmy; Prause, Lori; Douglass, David; Branston, Detrick; Genet, Russell M.

2015-09-01

Following mediocre results with pointing tests of the McMath-Pierce 0.8-meter East Auxiliary Telescope in April 2014, a team of astronomers/engineers met again in May 2014 to test other pointing models and assess the telescope's ability to point with enough accuracy to permit the efficient use of speckle interferometry. Results show that accurate collimation is a pre-requisite for such accuracy. Once attained, the telescope performs extremely well.

Self pierce riveting in the car body construction; Stanznieten im Karosserieleichtbau

Energy Technology Data Exchange (ETDEWEB)

Ahlers-Hestermann, G. [Boellhoff GmbH, Bielefeld (Germany)

1999-09-01

As an alterantive to spotwelding, self pierce riveting becomes more and more important in light weight automotive body constructions. The difficulties or impossibility of spotwelding Aluminium and High Tensile Strength Steel or material mixtures accelerated this development. Even plastic material can be joined to metal. Important mechanical properties such as fatigue and crash behaviour are improved. Costs are at the same level. Two examples of body parts in aluminium (Audi A6 bonnet and BMW 3 series front end) are described. (orig.) [German] Als Alternative zum Punktschweissen setzt sich das Stanznieten mit Halbhohlniet im Karosserieleichtbau mehr und mehr durch. Mit diesem Verfahren koennen verschiedene Materialen mit bis zu vier Lagen sicher verbunden werden. Dieser Beitrag der Boellhoff GmbH stellt das Verfahren vor und berichtet ueber zwei Beispiele aus der Praxis. (orig.)

A systematic review of animal predation creating pierced shells: implications for the archaeological record of the Old World.

Science.gov (United States)

Kubicka, Anna Maria; Rosin, Zuzanna M; Tryjanowski, Piotr; Nelson, Emma

2017-01-01

The shells of molluscs survive well in many sedimentary contexts and yield information about the diet of prehistoric humans. They also yield evidence of symbolic behaviours through their use as beads for body adornments. Researchers often analyse the location of perforations in shells to make judgements about their use as symbolic objects (e.g., beads), the assumption being that holes attributable to deliberate human behaviour are more likely to exhibit low variability in their anatomical locations, while holes attributable to natural processes yield more random perforations. However, there are non-anthropogenic factors that can cause perforations in shells and these may not be random. The aim of the study is compare the variation in holes in shells from archaeological sites from the Old World with the variation of holes in shells pierced by mollusc predators. Three hundred and sixteen scientific papers were retrieved from online databases by using keywords, (e.g., 'shell beads'; 'pierced shells'; 'drilling predators'); 79 of these publications enabled us to conduct a systematic review to qualitatively assess the location of the holes in the shells described in the published articles. In turn, 54 publications were used to assess the location of the holes in the shells made by non-human predators. Almost all archaeological sites described shells with holes in a variety of anatomical locations. High variation of hole-placement was found within the same species from the same site, as well as among sites. These results contrast with research on predatory molluscs, which tend to be more specific in where they attacked their prey. Gastropod and bivalve predators choose similar hole locations to humans. Based on figures in the analysed articles, variation in hole-location on pierced shells from archaeological sites was similar to variation in the placement of holes created by non-human animals. Importantly, we found that some predators choose similar hole locations to

Prevalence of contact allergy to metals in the European general population with a focus on nickel sulfate and piercings: The EDEN Fragrance Study.

Science.gov (United States)

Schuttelaar, Marie L A; Ofenloch, Robert F; Bruze, Magnus; Cazzaniga, Simone; Elsner, Peter; Gonçalo, Margarida; Naldi, Luigi; Svensson, Åke; Diepgen, Thomas L

2018-04-10

Studies on sensitization to metals in the general population are scarce. To determine the prevalence of sensitization to metals in the general population, and factors associated with nickel sensitization. In 5 European countries (The Netherlands, Germany, Italy, Portugal and Sweden), a random sample (N = 3119) from the general population (aged 18-74 years) was patch tested and interviewed by use of a questionnaire on exposure to metals, piercing, and jewellery. Overall, the age-standardized prevalences of sensitization to nickel, cobalt and chromium were, respectively, 14.5%, 2.1%, and 0.8%. The highest prevalence of nickel sensitization was seen in Portugal (18.5%) and the lowest (8.3%) in Sweden. The prevalence of cobalt sensitization varied between 3.8% (The Netherlands) and 0.9% (Italy), and the prevalence of chromium sensitization varied between 1.3% (Portugal) and 0.2% (Sweden). Significant associations were observed between nickel allergy and female sex (odds ratio [OR] 5.19; 95% confidence interval [95%CI]: 3.99-6.74), past piercing use (OR 3.86; 95%CI: 2.85-5.24), and currently having ≥3 piercings (OR 5.58; 95%CI: 4.02-7.76). The prevalence of sensitization to metals in the European general population was high, mostly because of nickel. The lowest prevalence of contact allergy to nickel and chromium observed in Sweden supports the effectiveness of long-standing regulation. © 2018 The Authors. Contact Dermatitis published by John Wiley & Sons Ltd.

Dr Jerome Pierce Webster (1888-1974): Surgeon, historian, campaigner, and 'the father of plastic surgery education'.

Science.gov (United States)

Wigley, Catrin H

2016-09-28

Dr Jerome Pierce Webster is best remembered as the 'founder of plastic surgery education in the United States' on the basis of developing his nation's first plastic surgery residency programme, his role in the founding of the American Board of Plastic Surgery, and, more generally, his influence in professionalising this subspecialty. He also deserves to be remembered for his extensive missionary work in China, his publications as a successful bibliographer, and as an accomplished historian. © The Author(s) 2016.

SPR Characteristics Curve and Distribution of Residual Stress in Self-Piercing Riveted Joints of Steel Sheets

OpenAIRE

Haque, Rezwanul; Wong, Yat C.; Paradowska, Anna; Blacket, Stuart; Durandet, Yvonne

2017-01-01

Neutron diffraction was used to describe the residual stress distributions in self-piercing riveted (SPR) joints. The sheet material displayed a compressive residual stress near the joint, and the stress gradually became tensile in the sheet material far away from the joint. The stress in the rivet leg was lower in the thick joint of the softer steel sheet than in the thin joint of the harder steel sheet. This lower magnitude was attributed to the lower force gradient during the rivet flaring...

A Reassessment of George Pierce Baker's "The Principles of Argumentation": Minimizing the Use of Formal Logic in Favor of Practical Approaches

Science.gov (United States)

Bordelon, Suzanne

2006-01-01

In this article, the author demonstrated how recent histories relied primarily on previous accounts and one textbook to characterize George Pierce Baker's work. This narrow assessment of "The Principles of Argumentation" limits one's understanding of his contribution to argumentation theory and pedagogy. Similarly, one has seen the need for care…

Tatuagens, Piercings e Diversidade Cultural: o que gestores dizem sobre esse tema?

Directory of Open Access Journals (Sweden)

Flávia Lorenne Sampaio Barbosa

2016-12-01

Full Text Available A diversidade cultural, representada pela utilização de tatuagens e piercings, possui variados impactos nos fenômenos sociais. No âmbito organizacional, sua gestão propicia potencialidades, especialmente como oportunidade para harmonizar ambientes corporativos e agregar valor competitivo. A pesquisa investiga a percepção sobre a empregabilidade de pessoas adeptas à tatuagens e piercings no contexto da gestão da diversidade cultural. Realizou-se pesquisa de campo com 8 empresários de uma cidade do interior do estado do Piauí, por meio de entrevistas semiestruturadas, analisadas com suporte na análise de conteúdo, especificamente, análise relacional. Com auxílio do software Atlas ti, categorizou-se as entrevistas em torno da gestão da diversidade cultural e duas subcategorias: cultura organizacional, formada pela dimensão valores sobre a diversidade e relações interpessoais; e resultados, formada pelas dimensões imagem e objetivos organizacionais. Constata-se que nas empresas do estudo não há gestão da diversidade, haja vista que os valores pessoais e organizacionais ainda não incorporaram valores culturais da diversidade. Em relação à empregabilidade, os objetivos institucionais refletidos nas políticas de gestão de pessoas, condicionam as competências, habilidades e atitudes profissionais ao atendimento de normas prescritas, reduzindo as possibilidades de gestão do potencial da diversidade na organização, em função do recrutamento e seleção de um perfil ideal. Acredita-se que pesquisas em outras contextos, inclusive de natureza comparativa, pode agregar novos pontos de vista e ampliar a discussão da gestão da diversidade no âmbito de sua afirmação como prática capaz de transformar organizações em espaços de maior acolhimento e mais competitivos

Recent Results from Analysis of Flow Structures and Energy Modes Induced by Viscous Wave around a Surface-Piercing Cylinder

Directory of Open Access Journals (Sweden)

Giancarlo Alfonsi

2017-01-01

Full Text Available Due to its relevance in ocean engineering, the subject of the flow field generated by water waves around a vertical circular cylinder piercing the free surface has recently started to be considered by several research groups. In particular, we studied this problem starting from the velocity-potential framework, then the implementation of the numerical solution of the Euler equations in their velocity-pressure formulation, and finally the performance of the integration of the Navier-Stokes equations in primitive variables. We also developed and applied methods of extraction of the flow coherent structures and most energetic modes. In this work, we present some new results of our research directed, in particular, toward the clarification of the main nonintuitive character of the phenomenon of interaction between a wave and a surface-piercing cylinder, namely, the fact that the wave exerts its maximum force and exhibits its maximum run-up on the cylindrical obstacle at different instants. The understanding of this phenomenon becomes of crucial importance in the perspective of governing the entity of the wave run-up on the obstacle by means of wave-flow-control techniques.

From body piercing to acute kidney injury – a case report

Directory of Open Access Journals (Sweden)

Irena Wikiera-Magott

2017-12-01

Full Text Available Acute kidney injury is an abrupt decline of renal function interfering with the body’s homeostasis. It most commonly occurs in neonates and children treated in intensive care units and undergoing extensive surgical procedures, especially cardiac surgery. Its aetiology is frequently complex, with infectious factors, toxic chemical activity and hydration and electrolyte imbalance occurring simultaneously and aggravating kidney injury. This study reports a case of a 17-year-old female patient in whom acute kidney injury was caused by a combination of factors, including sepsis, adverse effects of analgesic drugs and dehydration. Staphylococcus aureus infection caused by multiple-site piercings performed in a home setting resulted in the development of multiple skin abscesses, myometrial abscesses and a generalised infection. The patient’s condition warranted intensive antibiotic therapy and drainage of the myometrial abscesses. The therapy facilitated eradication of the infection foci and normalising renal function.

Educational Objectives and the Learning Domains: A New Formulation [And] Summary: Pierce-Gray Classification Model for the Cognitive, Affective and Psychomotor Domains.

Science.gov (United States)

Gray, Charles E.; Pierce, Walter D.

This paper examines and summarizes the "Pierce-Gray Classification Model for the Cognitive, Affective, and Psychomotor Domains," a model developed for the classification of educational objectives. The classification system was developed to provide a framework that teachers could use as a guide when developing specific instructional objectives for…

Pierced Lasso Proteins

Science.gov (United States)

Jennings, Patricia

Entanglement and knots are naturally occurring, where, in the microscopic world, knots in DNA and homopolymers are well characterized. The most complex knots are observed in proteins which are harder to investigate, as proteins are heteropolymers composed of a combination of 20 different amino acids with different individual biophysical properties. As new-knotted topologies and new proteins containing knots continue to be discovered and characterized, the investigation of knots in proteins has gained intense interest. Thus far, the principle focus has been on the evolutionary origin of tying a knot, with questions of how a protein chain `self-ties' into a knot, what the mechanism(s) are that contribute to threading, and the biological relevance and functional implication of a knotted topology in vivo gaining the most insight. Efforts to study the fully untied and unfolded chain indicate that the knot is highly stable, remaining intact in the unfolded state orders of magnitude longer than first anticipated. The persistence of ``stable'' knots in the unfolded state, together with the challenge of defining an unfolded and untied chain from an unfolded and knotted chain, complicates the study of fully untied protein in vitro. Our discovery of a new class of knotted proteins, the Pierced Lassos (PL) loop topology, simplifies the knotting approach. While PLs are not easily recognizable by the naked eye, they have now been identified in many proteins in the PDB through the use of computation tools. PL topologies are diverse proteins found in all kingdoms of life, performing a large variety of biological responses such as cell signaling, immune responses, transporters and inhibitors (http://lassoprot.cent.uw.edu.pl/). Many of these PL topologies are secreted proteins, extracellular proteins, as well as, redox sensors, enzymes and metal and co-factor binding proteins; all of which provide a favorable environment for the formation of the disulphide bridge. In the PL

Modification of the pierce instability of the electron flow in a diode with an external electromagnetic action

International Nuclear Information System (INIS)

Melezhik, O.G.; Pashchenko, A.V.; Romanov, S.S.; Shapoval, I.M.

2014-01-01

The stability of electron flow passage through the diode with a neutralized space charge has been investigated on the basis of the first-order approximation for hydrodynamic and Maxwell equations. Classification of solutions to the equations was developed in accordance with the magnitude and nature (potential or eddy) of the electric field arising at the diode cathode. The stability regions for these states have been found. It is shown that the presence of external electromagnetic action makes the stability region narrower than that predicted by Pierce.

Hydrographs showing groundwater levels for selected wells in the Puyallup River watershed and vicinity, Pierce and King Counties, Washington

Science.gov (United States)

Lane, R.C.; Julich, R.J.; Justin, G.B.

2013-01-01

Hydrographs of groundwater levels for selected wells in and adjacent to the Puyallup River watershed in Pierce and King Counties, Washington, are presented using an interactive Web-based map of the study area to illustrate changes in groundwater levels on a monthly and seasonal basis. The interactive map displays well locations that link to the hydrographs, which in turn link to the U.S. Geological Survey National Water Information System, Groundwater Site Inventory System.

Pierce-Wiggler electron beam system for 250 GHz GYRO-BWO: Final report

International Nuclear Information System (INIS)

Pirkle, D.R.; Alford, C.W.; Anderson, M.H.; Garcia, R.F.; Legarra, J.R.; Nordquist, A.L.

1989-01-01

This final report summarizes the design and performance of the VUW-8028 Pierce-Wiggler electron beam systems, which can be used to power high frequency gyro-BWO's. The operator's manual for this gyro-BWO beamstick is included as appendix A. Researchers at Lawrence Livermore National Laboratory (LLNL) are developing a gyro-BWO with a center frequency of 250 GHz, 6% bandwidth, and 10 kV peak output power. The gyro-BWO will be used to drive a free electron laser amplifier at LLNL. The electron beam requirements of the gyro-BWO application are: Small beam size, .100 inch at 2500 gauss axial magnetic field; a large fraction of the electron energy in rotational velocity; ability to vary the electrons' axial velocity easily, for electronic tuning; and low velocity spread i.e. little variation in the axial velocities of the electrons in the interaction region. 1 ref., 13 figs

Bacteria, taxonomic code, and other data collected from G.W. PIERCE in North Atlantic Ocean from sediment sampler; 20 February 1976 to 23 March 1976 (NODC Accession 7601642)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Bacteria, taxonomic code, and other data were collected using sediment sampler and other instruments in the North Atlantic Ocean from G.W. PIERCE. Data were...

Numerical simulation of self-piercing riveting process (SRP using continuum damage mechanics modelling

Directory of Open Access Journals (Sweden)

Nicola Bonora

2018-04-01

Full Text Available The extended Bonora damage model was used to investigate joinability of materials in self-piercing riveting process. This updated model formulation accounts for void nucleation and growth process and shear-controlled damage which is critical for shear fracture sensitive materials. Potential joint configurations with dissimilar materials have been investigated computationally. In particular the possible combination of DP600 steel, which is widely used in the automotive industry, with AL2024-T351, which is known to show shear fracture sensitivity, and oxygen-free pure copper, which is known to fail by void nucleation and growth, have been investigated. Preliminary numerical simulation results indicate that the damage modelling is capable to discriminate potential criticalities occurring in the SPR joining process opening the possibility for process parameters optimization and screening of candidate materials for optimum joint

Influence of aluminium sheet surface modification on the self-piercing riveting process and the joint static lap shear strength

OpenAIRE

Li, Dezhi

2017-01-01

Self-piercing riveting (SPR) has been widely used in automotive as one of the major joining technologies for aluminium structures due to its advantages over some of the more traditional joining technologies. Research has shown that friction is a very important factor that influences both the riveting process and the joint strength for SPR, but these influences have not been fully understood. In this paper, AA5754 sheets with different surface textures, such as original with solid wax, hot wat...

Influence of heat treatment on fatigue performances for self-piercing riveting similar and dissimilar titanium, aluminium and copper alloys

OpenAIRE

Zhang, Xianlian; He, Xiaocong; Xing, Baoying; Zhao, Lun; Lu, Yi; Gu, Fengshou; Ball, Andrew

2016-01-01

The fatigue performances of self-piercing riveting (SPR) joints connecting similar and dissimilar sheets of TA1 titanium alloy (TA1), Al5052 aluminium alloy (Al5052) and H62 copper alloy (H62) were studied in this paper. The specimens of similar TA1 sheets treated with stress relief annealing were prepared to investigate the influence of relief annealing on the mechanical properties of SPR joints. Fatigue tests were conducted to characterize the fatigue lives and failure modes of the joints. ...

A variation of Musculocutaneous nerve without piercing the coracobrachialis muscle while communicating to the median nerve: A case report and literature review

Directory of Open Access Journals (Sweden)

Hamid Tayefi Nasrabadi

Full Text Available Introduction: Anatomical variations of the peripheral nervous system may have not any clinical signs and symptoms. One of these variations belongs to the Musculocutaneous nerve. However, a good knowledge of nerve pathways and their variations is very important for surgeons in post-traumatic evaluations, exploratory interventions, and/or administration of neuromuscular blocks in axillary region in order to surgical therapies. Presentation of case: This report describes a case of variation of the musculocutaneous nerve which was observed in an old Iranian male cadaver during routine educational dissection (Fig. 1. Discussion and Conclusion: Anatomically, in the axilla region, the Musculocutaneous nerve is originated of the lateral cord of brachial plexus, then, by piercing the coracobrachialis muscle arrives enters to anterior compartment of the arm. But, in the present report, we observed that the Musculocutaneous nerve without piercing the coracobrachialis muscle has arrived in the left arm, then communicated to the Median nerve. To exploratory interventions of the arms for peripheral nerve repair and surgical therapies, a good knowledge of nerve pathways helps to surgeons for preventing possible mistakes during surgery. Keywords: Brachial plexus, Musculocutaneous nerve, Median nerve, Variation, Anatomy, Dissection

[Tattoos and piercings: motives for body modification in women suffering from borderline symptomatology].

Science.gov (United States)

Höhner, Gesche; Teismann, Tobias; Willutzki, Ulrike

2014-02-01

Do women suffering from borderline symptomatology differ from women without these symptoms regarding their motives for body modifications?A sample of 289 women with body modifications were questioned about their tattoos, piercings and motives for body modifications as well as about symptoms of borderline personality disorder. Women with borderline symptomatology were compared to women without borderline symptomatology concerning the extent of and motives for body modification.The 2 groups showed no differences in regard to amount and extent of body modifications. The "borderline"-group considered individuality, coping and management of negative life-events to be more crucial reasons for body modification than the non-borderline females.The degree of a person's body modification is not a feasible indicator for psychopathological strain. Though, for people with borderline tendency body modification may serve as a coping strategy similar to self-injury. © Georg Thieme Verlag KG Stuttgart · New York.

Influence of local surface texture by tool impression on the self piercing\\ud riveting process and the static lap shear strength

OpenAIRE

Li, Dezhi

2017-01-01

To increase fuel efficiency and reduce emission, aluminium alloys have been increasingly used in automotive body-in-white structures for lightweighting. Due to its advantages over some of the more traditional joining technologies, self-piercing riveting (SPR) has been widely used for these lightweight structures. Research has showed that friction is a very important factor that influences both the riveting process and joint strength for SPR, but these influences have not been fully understood...

Design of convergent pierce electron gun of accelerator for radiation sterilization by the method of synthesis

International Nuclear Information System (INIS)

Kong Xiaoxiao; Li Quanfeng

2003-01-01

A synthesis technique for the preliminary design of convergent Pierce electron guns is introduced briefly which has a series of advantages over the traditional methods. A thermal cathode electron gun used in the accelerator for radiation sterilization with the synthesis method is redesigned, and the validity of this method is proved. Based on the preliminary design parameters given by the synthesis method, a simulating calculation program, EGUN, was used in the numerical figure design of the focusing electrode and the anode. The final results can meet the engineering requirement as the current being 1A, the normalized emittance being less than 4 mm·mrad, and the final current density showing uniformity

A new approach using the Pierce two-node model for different body parts.

Science.gov (United States)

Foda, Ehab; Sirén, Kai

2011-07-01

This paper presents a new approach, in applying the Pierce two-node model, to predict local skin temperatures of individual body parts with good accuracy. In this study, local skin temperature measurements at 24 sites on the bodies of 11 human subjects were carried out in a controlled environment under three different indoor conditions (i.e. neutral, warm and cold). The neutral condition measurements were used to adjust the local skin set-points in the model for each body part. Additional modifications to the calculation algorithm were introduced corresponding to different body parts. The local core set-points were then calculated, using a line search method, as the input values that allow the model to predict the skin temperatures with maximum deviation of ±0.1°C for the neutral condition. The model predictability was verified for the other two indoor conditions, and the results show that the modified model predicts local skin temperatures with average deviation of ±0.3°C.

Experimental study on combined cold forging process of backward cup extrusion and piercing

Science.gov (United States)

Henry, Robinson; Liewald, Mathias

2018-05-01

A reduction in material usage of cold forged components while maintaining the functional requirements can be achieved using hollow or tubular preforms. These preforms are used to meet lightweight requirements and to decrease production costs of cold formed components. To increase production efficiency in common multi-stage cold forming processes, manufacturing of hollow preforms by combining the processes backward cup extrusion and piercing was established and will be discussed in this paper. Corresponding investigations and experimental studies are reported in this article. The objectives of the experimental investigations have been the detection of significant process parameters, determination of process limits for the combined processes and validation of the numerical investigations. In addition, the general influence concerning surface quality and diameter tolerance of hollow performs are discussed in this paper. The final goal is to summarize a guideline for industrial application, moreover, to transfer the knowledge to industry, as regards what are required part geometries to reduce the number of forming stages as well as tool cost.

Simulation of the Groundwater-Flow System in Pierce, Polk, and St. Croix Counties, Wisconsin

Science.gov (United States)

Juckem, Paul F.

2009-01-01

Groundwater is the sole source of residential water supply in Pierce, Polk, and St. Croix Counties, Wisconsin. A regional three-dimensional groundwater-flow model and three associated demonstration inset models were developed to simulate the groundwater-flow systems in the three-county area. The models were developed by the U.S. Geological Survey in cooperation with the three county governments. The objectives of the regional model of Pierce, Polk, and St. Croix Counties were to improve understanding of the groundwaterflow system and to develop a tool suitable for evaluating the effects of potential water-management programs. The regional groundwater-flow model described in this report simulates the major hydrogeologic features of the modeled area, including bedrock and surficial aquifers, groundwater/surface-water interactions, and groundwater withdrawals from high-capacity wells. Results from the regional model indicate that about 82 percent of groundwater in the three counties is from recharge within the counties; 15 percent is from surface-water sources, consisting primarily of recirculated groundwater seepage in areas with abrupt surface-water-level changes, such as near waterfalls, dams, and the downgradient side of reservoirs and lakes; and 4 percent is from inflow across the county boundaries. Groundwater flow out of the counties is to streams (85 percent), outflow across county boundaries (14 percent), and pumping wells (1 percent). These results demonstrate that the primary source of groundwater withdrawn by pumping wells is water that recharges within the counties and would otherwise discharge to local streams and lakes. Under current conditions, the St. Croix and Mississippi Rivers are groundwater discharge locations (gaining reaches) and appear to function as 'fully penetrating' hydraulic boundaries such that groundwater does not cross between Wisconsin and Minnesota beneath them. Being hydraulic boundaries, however, they can change in response to

Ballistic Limit of High-Strength Steel and Al7075-T6 Multi-Layered Plates Under 7.62-mm Armour Piercing Projectile Impact

OpenAIRE

Rahman, N. A.; Abdullah, S.; Zamri, W. F. H.; Abdullah, M. F.; Omar, M. Z.; Sajuri, Z.

2016-01-01

Abstract This paper presents the computational-based ballistic limit of laminated metal panels comprised of high strength steel and aluminium alloy Al7075-T6 plate at different thickness combinations to necessitate the weight reduction of existing armour steel plate. The numerical models of monolithic configuration, double-layered configuration and triple-layered configuration were developed using a commercial explicit finite element code and were impacted by 7.62 mm armour piercing projectil...

Application of neutron activation analysis to the corrosion study of gold coated studs used for piercing ears

International Nuclear Information System (INIS)

Saiki, M.; Rogero, S.O.; Costa, I.; Correa, O.V.; Higa, O.Z.

1998-01-01

Complete text of publication follows. Gold is known as a metal having little or no toxicity and it has been widely used for coating studs for ear piercing. However, for some people gold coated studs have caused serious allergy and inflammation problems. After piercing, the studs are usually kept in the ear lobes for at least one week, and during this period the stud surfaces in contact with the body fluids have caused swelling, pain and redness of the skin. Consequently, it is of great interest to evaluate if elements from the metallic substrate underneath the gold coatings migrate to the body fluids due to the corrosion and the presence of defects in gold coatings. The solutions for corrosion test were obtained by placing the gold coated studs in contact with the solutions of NaCl and of culture medium. Elemental analyses of these solutions by radioanalytical method of neutron activation analysis indicated the occurrence of substrate corrosion since the elements Cr, Fe, Ni and Zn were found in these solutions. These elements are substrate material components of alloys used to make the studs and they were quantified by X-ray fluorescence analysis. The defects of the coatings were also detected by scanning electron microscopy and energy dispersive spectroscopy analysis of the gold coated studs before and after the corrosion tests. Cytotoxicity studies indicated that after corrosion test the solution used was toxic in the culture cell assay. Among the elements quantified in the test solutions, Ni is considered responsible for most of allergic reactions. Results obtained in this work indicated the necessity to improve quality control of the coating process of studs and in the appropriate choice of material used as substrate

[Tatoos, piercing: body art? Body damage? Debasement of the body or return to a primitive way of life?].

Science.gov (United States)

Grognard, C

2006-01-01

Tatoos and piercing, though they might appear as something like a trend, if not a craze, remain for a majority minority and even fringe practices. For the adolescent, questing for his identity (no more a child, not yet an adult), the tegmental sign is a way of engraving in the flesh dramatic events of his existence. The body mark is a search for independence, a symbolic attainment of self-reliance, a way of severing the umbilical cord and of asserting oneself. In face of a life no longer under control, the body is an object at hand, on which self-will is almost unbridled... These body modifications testify to change.

SPR Characteristics Curve and Distribution of Residual Stress in Self-Piercing Riveted Joints of Steel Sheets

Directory of Open Access Journals (Sweden)

Rezwanul Haque

2017-01-01

Full Text Available Neutron diffraction was used to describe the residual stress distributions in self-piercing riveted (SPR joints. The sheet material displayed a compressive residual stress near the joint, and the stress gradually became tensile in the sheet material far away from the joint. The stress in the rivet leg was lower in the thick joint of the softer steel sheet than in the thin joint of the harder steel sheet. This lower magnitude was attributed to the lower force gradient during the rivet flaring stage of the SPR process curve. This study shows how the residual stress results may be related to the physical occurrences that happened during joining, using the characteristics curve. The study also shows that neutron diffraction technique enabled a crack in the rivet tip to be detected which was not apparent from a cross-section.

Towed underwater PIV measurement for free-surface effects on turbulent wake of a surface-piercing body

Directory of Open Access Journals (Sweden)

Dong Myung Seol

2013-09-01

Full Text Available In the present study, a towed underwater particle image velocimetry (PIV system was validated in uniform flow and used to investigate the free-surface effects on the turbulent wake of a simple surface-piercing body. The selected test model was a cylindrical geometry formed by extruding the Wigley hull's waterplane shape in the vertical direction. Due to the constraints of the two-dimensional (2D PIV system used for the present study, the velocity field measurements were done separately for the vertical and horizontal planes. Using the measured data at several different locations, it was possible to identify the free-surface effects on the turbulent wake in terms of the mean velocity components and turbulence quantities. In order to provide an accuracy level of the data, uncertainty assessment was done following the International Towing Tank Conference standard procedure.

Suppression of Astronomical Sources Using Starshades and the McMath-Pierce Solar Telescope

Science.gov (United States)

Novicki, Megan; Warwick, Steve; Smith, Daniel; Richards, Michael; Harness, Anthony

2016-01-01

The external starshade is a method for the direct detection and spectral characterization of terrestrial planets around other stars, a key goal identified in ASTRO2010. Tests of this approach have been and continue to be conducted in the lab and in the field (Samuele et al., 2010, Glassman et al., 2014) using non-collimated light sources with a spherical wavefront. We extend the current approach to performing night-time observations of astronomical objects using small-scale (approximately 1/300th) starshades and the McMath-Pierce Solar Telescope at Kitt Peak National Observatory. We placed a starshade directly in the path of the beam from an astronomical object in front of the main heliostat. Using only flat mirrors, we then directed the light through the observatory path and reflected it off the West heliostat to an external telescope located approximately 270m away, for an effective baseline of 420m.This configuration allowed us to make measurements of flat wavefront sources with a Fresnel number close to those expected in proposed full-scale space configurations. We present the results of our engineering runs conducted in 2015.

Belly button piercings: a saving grace? A patent urachus presenting in a 17-year-old girl.

Science.gov (United States)

Bannon, Aidan; Black, Patrick; Turner, Joanna; Gray, Sam; Kirk, Stephen

2014-06-10

We report the case of a 17-year-old girl who presented to the accident and emergency department with dysuria and foul smelling, bloody discharge from her umbilicus. The definitive diagnosis was that of a patent urachus, which is a fistulous communication between the bladder and the umbilicus, usually diagnosed in early infancy. The incidence of a patent urachus is approximately 1 in 70,000 in the general population. It is highly likely that removal of a recent belly button piercing resulted in the acute presentation by completing the fistulous tract to the skin. This case is of clinical relevance as the diagnosis was missed 18 months prior with a milder presentation. The recommended treatment option is surgical excision due to the potential risk of malignant change, with urachal adenocarcinoma accounting for 0.3% of all bladder cancers. 2014 BMJ Publishing Group Ltd.

Sealing of transmitted-heat lines at wall piercings; Abdichtung von Fernwaermeleitungen in Mauerdurchfuehrungen

Energy Technology Data Exchange (ETDEWEB)

Werner, A.; Ney, K. [Doyma GmbH und Co., Oyten (Germany)

1998-04-01

Flexible sealing systems are necessary to provide permanent protection of transmitted-heat pipe wall penetrations against the ingress of water. Unlike the rigid sealing methods in widespread use, flexible sealing systems are capable of absorbing thermally induced pipe movements and thus of preventing leaks around such piercings. The following article provides an introduction to the subject and offers practical suggestions for the ideal design of transmitted-heat pipe wall penetrations. Sealing system variants with a range of degrees of flexibility are discussed, in addition to measures which need to be taken into account as early as the installation of the pipe itself. Prime attention is devoted not to methods already practised, but to recent, potentially marketable developments. (orig.) [Deutsch] Um Mauerdurchfuehrungen von Fernwaermeleitungen dauerhaft gegen das Eindringen von Wasser zu schuetzen, sind flexible Abdichtsysteme notwendig. Im Gegensatz zu den verbreiteten starren Abdichtungsmethoden koennen flexible Systeme die thermisch bedingten Rohrbewegungen aufnehmen und damit Undichtigkeiten im Bereich der Durchfuehrungen verhindern. Der folgende Beitrag fuehrt in die Thematik ein und gibt praktische Hinweise, wie eine Mauerdurchfuehrung von Fernwaermeleitungen idealerweise gestaltet werden sollte. Neben Massnahmen, die bereits bei der Rohrverlegung zu beachten sind, werden Abdichtvarianten mit unterschiedlichem Flexibilitaetsgrad skizziert. Schwerpunkt der Untersuchung liegt hier nicht nur auf bereits bekannten Verfahren sondern auch auf marktfaehigen Neuentwicklungen. (orig.)

Is the HP-UHP Hong'an-Dabie-Sulu orogen a piercing point for offset on the Tan-Lu fault?

Science.gov (United States)

Leech, Mary L.; Webb, Laura E.

2013-02-01

The Tan-Lu fault is a major strike-slip fault in eastern China that appears to offset the high-grade rocks of the Hong'an-Dabie-Sulu orogen left-laterally ˜540 km. We evaluate models for the collision between the South and North China blocks, published radiometric dates recording HP-UHP metamorphism and exhumation in the Hong'an-Dabie and Sulu terranes, and the timing of sinistral motion on the Tan-Lu fault to evaluate whether UHP rocks provide a piercing point for offset on the Tan-Lu fault. UHP metamorphism in Hong'an-Dabie was concurrent with Sulu based on U-Pb dating of coesite-bearing domains of zircon at 244 ± 5-226 ± 2 Ma for Hong'an-Dabie and 243 ± 4-225 ± 2 Ma for Sulu. Retrograde metamorphism began c. 220 Ma for both Hong'an-Dabie and Sulu, but retrograde zircon growth ended c. 214 Ma in Hong'an-Dabie and continued until c. 202 Ma in Sulu based on U-Pb dating of zircon domains external to coesite-bearing domains. Structures in Sulu are rotated 25° counter-clockwise from, but are broadly similar to, Hong'an-Dabie suggesting the two areas have a common Triassic orogenic history that pre-dates motion on the Tan-Lu fault, and that is consistent with paleomagnetic studies. We constructed a pre-Cretaceous restoration of the Hong'an-Dabie-Sulu belt that moves the Sulu terrane south, aligning the suture and the eclogite-facies isograd, and rotates Sulu c. 25° clockwise to re-align structures with Hong'an-Dabie. Our restoration is supported by published data and shows that the Hong'an-Dabie-Sulu orogen is a piercing point for post-collisional offset on the Tan-Lu fault and that these regions shared a common subduction-exhumation history. The Tan-Lu fault did not play a significant role in the Hong'an-Dabie-Sulu collision and likely developed later, in the Early Cretaceous.

Body piercing and tattoo: awareness of health related risks among 4,277 Italian secondary school adolescents

Science.gov (United States)

2010-01-01

Background The awareness of health risks associated with body art among secondary school pupils has never previously been studied in depth. A large sample of secondary school adolescents from the Veneto Region (North East Italy) were investigated in order to inform health education programs. Methods 6 public secondary schools from each of the 7 Provinces of the Veneto Region were selected. All students attending the 1st, 3rd, and 5th school years were surveyed by an anonymous self administered questionnaire on their perception of health risks related to body art and other explanatory variables. Logistic regression analysis was employed, reporting adjusted Odds Ratios (OR) with 95% Confidence Interval (CI). Results Among 4,277 available students (aged 14-22 years), boys were consistently: less knowledgeable of infectious diseases related to body art (OR = 0.78; CI: 0.66, 0.94), less likely to be aware of the hygienic norms to be observed in a body art parlour (OR = 0.54; 0.44, 0.65), less likely to refer to a certified body art parlour (OR = 0.56; 0.48, 0.66), less likely to refer to a professional health care provider for complications related to body art (OR = 0.71; 0.59, 0.86). Students attending the first school year (baseline) had a lesser knowledge of body art related infectious diseases, were less likely to refer to a certified body art parlour, and to know the mandatory hygienic rules to be observed when performing body modifications. Interviewees from the provinces of Rovigo and Vicenza were less likely to be conscious of the health risks associated with body modifications, and those with tattoos were less knowledgeable about the infection risk (OR = 0.60; 0.42, 0.86) and less likely to refer to a professional health care provider in case of medical complication (OR = 0.68;0.48, 0.95). Students with piercings were less likely to refer to a certified practitioner for receiving body art (OR = 0.62; 0.50, 0.77) or therapy for medical complications (OR = 0

Body piercing and tattoo: awareness of health related risks among 4,277 Italian secondary school adolescents

Directory of Open Access Journals (Sweden)

Mazzoleni Francesco

2010-02-01

Full Text Available Abstract Background The awareness of health risks associated with body art among secondary school pupils has never previously been studied in depth. A large sample of secondary school adolescents from the Veneto Region (North East Italy were investigated in order to inform health education programs. Methods 6 public secondary schools from each of the 7 Provinces of the Veneto Region were selected. All students attending the 1st, 3rd, and 5th school years were surveyed by an anonymous self administered questionnaire on their perception of health risks related to body art and other explanatory variables. Logistic regression analysis was employed, reporting adjusted Odds Ratios (OR with 95% Confidence Interval (CI. Results Among 4,277 available students (aged 14-22 years, boys were consistently: less knowledgeable of infectious diseases related to body art (OR = 0.78; CI: 0.66, 0.94, less likely to be aware of the hygienic norms to be observed in a body art parlour (OR = 0.54; 0.44, 0.65, less likely to refer to a certified body art parlour (OR = 0.56; 0.48, 0.66, less likely to refer to a professional health care provider for complications related to body art (OR = 0.71; 0.59, 0.86. Students attending the first school year (baseline had a lesser knowledge of body art related infectious diseases, were less likely to refer to a certified body art parlour, and to know the mandatory hygienic rules to be observed when performing body modifications. Interviewees from the provinces of Rovigo and Vicenza were less likely to be conscious of the health risks associated with body modifications, and those with tattoos were less knowledgeable about the infection risk (OR = 0.60; 0.42, 0.86 and less likely to refer to a professional health care provider in case of medical complication (OR = 0.68;0.48, 0.95. Students with piercings were less likely to refer to a certified practitioner for receiving body art (OR = 0.62; 0.50, 0.77 or therapy for medical

Water physical and chemical data from current meter and bottle casts from the G.W. PIERCE as part of the Ocean Continental Shelf - Mid Atlantic (OCS - Mid Atlantic) project, 1975-10-22 to 1975-10-31 (NODC Accession 8200067)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Water physical and chemical data were collected using current meter and bottle casts from the G.W. PIERCE from October 22, 1975 to October 31, 1975. Data were...

Política do corpo e política de vida: a tatuagem e o body piercing como expressão corporal de uma ética da dissidência Politics of the body, politics of life: tattoos and body piercing as a corporal expression of an ethics of dissidence

Directory of Open Access Journals (Sweden)

Vitor Sérgio Ferreira

2007-11-01

Full Text Available A estética da divergência, que caracteriza a corporeidade extensivamente marcada com recurso à tatuagem e ao body piercing, configura uma forma de demarcação estilística através da qual alguns jovens constroem e dão a (reconhecer não só a sua identidade pessoal, mas também o modo como percebem e se relacionam com o mundo. Implica uma performance estética que excorpora uma homóloga atitude ética, consubstanciando um sentido de desafiliação perante a ordem cultural e social estabelecida. Trata-se de uma ética de dissidência que reclama uma remoralização da vida quotidiana no sentido de conquistar um espaço social de existência no mundo, onde seja possível viver o compromisso com um corpo, uma identidade e um estilo de vida que se pretende «alternativo» aos disponibilizados pelo actual «supermercado de estilos», em condições de autenticidade, respeito e liberdade individual.The aesthetic of divergence that characterises extensively tattooed and body pierced bodies, represents a way of stylistic demarcation through which some young people build and reveal not only their personal identity, but also the way they perceive and relate to the world. It implies an aesthetic performance that embodies a homologous ethical attitude, consubstantiated in a sense of disaffiliation towards the established social and cultural order. It is an ethic of dissidence that reclaims a remoralisation of day-to-day life, so as to conquer a social space of existence in the world, where it is possible to live a commitment with a body, an identity, and a life style that aims to be "alternative" to the current "supermarket of styles" on offer, under conditions of authenticity, respect and personal freedom.

Fatigue Life Prediction of Self-Piercing Rivet Joints Between Magnesium and Aluminum Alloys

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Kang Hong-Tae

2018-01-01

Full Text Available Various light materials including aluminum alloys and magnesium alloys are being used to reduce the weight of vehicle structures. Joining of dissimilar materials is always a challenging task to construct a solid structure. Self-piercing rivet (SPR joint is one of various joining methods for dissimilar materials. Front shock tower structures were constructed with magnesium alloy (AM60 joined to aluminum alloy (Al6082 by SPR joints. To evaluate the durability performance of the SPR joints in the structures, fatigue tests of the front shock tower structures were conducted with constant amplitude loadings. Furthermore, this study investigated fatigue life prediction method of SPR joints and compared the fatigue life prediction results with that of experimental results. For fatigue life prediction of the SPR joints in the front shock tower structures, lap-shear and cross-tension specimens of SPR joint were constructed and tested to characterize the fatigue properties of the SPR joint. Then, the SPR joint was represented with area contact method (ACM in finite element (FE models. The load-life curves of the lap-shear and cross-tension specimens were converted to a structural stress-life (S-N curve of the SPR joints. The S-N curve was used to predict fatigue life of SPR joints in the front shock tower structures. The test results and the prediction results were well correlated.

The corrosion resistance of materials used for the manufacture of ear piercing studs

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Correa, O. V.

2003-12-01

Full Text Available Nickel containing alloys have been widely used as substrates for the manufacture of studs used for ear piercing. Unfortunately, nickel has also been related to the development of allergic contact dermatitis caused by skin sensitization due to Ni²⁺ ions. Nickel ions can be leached out into the body fluids due to corrosion reactions. Defect free coatings are very difficult to produce, and therefore nickel free materials should be used as substrates of ear piercing studs, although the commercial alloys used usually contain this element. In this study, the corrosion resistance of two kinds of commercial studs prepared with nickel containing substrates and a titanium laboratory made stud was determined in a culture medium. The corrosion resistance of the studs was investigated by means of potentiodynamic polarization tests and electrochemical impedance spectroscopy as a function of immersion time in the culture medium. The elements that leached out into the medium due to corrosion reactions were analyzed by instrumental neutron activation analysis. The surfaces of the commercial gold-coated studs were examined by scanning electron microscopy and analyzed by energy dispersive spectroscopy, both before and after exposure to the culture medium. The cytotoxicity of the tested studs was also determined in the culture medium.

Aleaciones conteniendo níquel se han utilizado como substratos para la fabricación de aretes perforantes para orejas. Desafortunadamente, el níquel ha sido relacionado con el desarrollo de una reacción alérgica conocida como dermatitis de contacto, causada por la sensibilización debido a los iones de Ni²⁺. Estos iones pueden ser liberados hacia los fluidos corporales debido a las reacciones de corrosión. Los aretes, habitualmente, se revisten con películas de oro. Sin embargo, es muy difícil hacer los revestimientos libres de defectos superficiales. Por lo tanto, materiales sin níquel deber

Temperature profiles from expendable bathythermograph (XBT) casts from NOAA Ship RESEARCHER and the G. W. PIERCE in the Gulf of Mexico in support of the Integrated Global Ocean Services System (IGOSS) from 1979-09-12 to 1979-10-02 (NODC Accession 7900341)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — XBT data were collected from NOAA Ship RESEARCHER and the G. W. PIERCE in support of the Integrated Global Ocean Services System (IGOSS). Data were collected by the...

Chemical, physical, phytoplankton weight, and other data collected using meteorological sensors, plankton net, secchi disk, CTD, and bottle casts from the G.W. PIERCE as part of the California Cooperative Fisheries Investigation (CALCOFI) project, from 19 June 1971 to 14 September 1980 (NODC Accession 8300037)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, physical, phytoplankton weight, and other data were collected from the G.W. PIERCE from June 19, 1971 to September 14, 1980. Data were collected using...

Design of experiment existing parameter physics for supporting of Boron Neutron Capture Therapy (BNCT) method a t the piercing radial beam port of Kartini research reactor

International Nuclear Information System (INIS)

Indry Septiana Novitasari; Yosaphat Sumardi; Widarto

2014-01-01

The experiment existing parameters physics for supporting of in vivo and in vitro test facility of Boron Neutron Capture Therapy (BNCT) preliminary study at the piercing radial beam port has been done. The existing experiments is needed for determining that the parameter physics is fulfill the BNCT method requirement. To realize the existing experiment have been done by design analysis, methodology, calculation method and some procedure related with radiation safety analysis and environment. Preparation for existing experiment physics such as foil detector of Gold (Au) should be irradiated for 30 minute, irradiation instrument and procedure related with the experiment for radiation safety. (author)

Proteomics approach to identify unique xylem sap proteins in Pierce's disease-tolerant Vitis species.

Science.gov (United States)

Basha, Sheikh M; Mazhar, Hifza; Vasanthaiah, Hemanth K N

2010-03-01

Pierce's disease (PD) is a destructive bacterial disease of grapes caused by Xylella fastidiosa which is xylem-confined. The tolerance level to this disease varies among Vitis species. Our research was aimed at identifying unique xylem sap proteins present in PD-tolerant Vitis species. The results showed wide variation in the xylem sap protein composition, where a set of polypeptides with pI between 4.5 and 4.7 and M(r) of 31 kDa were present in abundant amount in muscadine (Vitis rotundifolia, PD-tolerant), in reduced levels in Florida hybrid bunch (Vitis spp., PD-tolerant) and absent in bunch grapes (Vitis vinifera, PD-susceptible). Liquid chromatography/mass spectrometry/mass spectrometry analysis of these proteins revealed their similarity to beta-1, 3-glucanase, peroxidase, and a subunit of oxygen-evolving enhancer protein 1, which are known to play role in defense and oxygen generation. In addition, the amount of free amino acids and soluble sugars was found to be significantly lower in xylem sap of muscadine genotypes compared to V. vinifera genotypes, indicating that the higher nutritional value of bunch grape sap may be more suitable for Xylella growth. These data suggest that the presence of these unique proteins in xylem sap is vital for PD tolerance in muscadine and Florida hybrid bunch grapes.

Tělesné modifikace - fenomén dnešní doby? : Motivy pro piercing, tetování a další tělesné modifikace v historii a dnes

OpenAIRE

Fučíková, Tereza

2013-01-01

This bachelor's work deals with the theme of body modifications, especially with two which are the most common in our society: tattoo and piercing. In the theoretical part, there are emphasized roots of these modifications in the past, their changes and development till the present. This is done by compilation and comparison of books and professional works dealing with this topic. The second part is practical. It encompasses quantitative research completed with parts of interviews from pre-re...

Tattoos, piercings and re-configuration of the body. A path between bioethical and educational profiles

Directory of Open Access Journals (Sweden)

Carmela Bianco

2014-03-01

Full Text Available Tattoos and piercings can become a mask to hide behind? Everything can become a mask if we use it for masquerading. The tattoo is the anthropological roots of ancient and modern makeup that refers to the mask understood as that which creates the face, which gives it its social being. The tattoo is also an artistic decoration that should be born by the deep desire to communicate yourself to others. Tattoos must be able to "tell" the people who wear them, but if the latter decorate their body with a message or image that does not belong, it can cause the destruction of individuality. The tattoo is immortal. It can be a permanent dress, a way to resist the unwanted transformations using a piece of subjective identity, non-imitable, from which one cannot be excluded. Along with careful identification of psycho-sociological motivations that drive a young man to want a tattoo, you need to traverse an education that not only form a personality, teaches the knowledge of his own body. Getting a tattoo means not only change the morphology of the body but the risk of jeopardizing their health. Responsibility for their own health also means being aware that a tattoo can procure mild side effects or more severe depending on the initial state of health of the subject. Then a tattoo only after a careful history following the favorable opinion of the doctor and after a personal assessment aware. These initial objectives of a path bioethical-pedagogical significant.

Tattoos, body piercings, and self-injury: is there a connection? Investigations on a core group of participants practicing body modification.

Science.gov (United States)

Stirn, Aglaja; Hinz, Andreas

2008-05-01

Reliable psychosocial data about practitioners of body piercing and tattooing are few and controversial. The goal of this study was to reinvestigate the issue by studying a large sample of individuals with body modifications (BMs), focusing on the motives and relations to biographical events. A 55-item anonymous self-report questionnaire was distributed among volunteers of what is considered to be a core group of individuals wearing BMs (N=432). Results show that BMs changed the participants' attitude toward their body considerably, and 34% of all participants reported BM practices in conjunction with decisive biographical events. Twenty-seven percent of the participants admitted self-cutting during childhood. This group differed from the group without self-cutting with respect to several features before, during, and after BM. The rate of medical complications of BM was 16% in the total sample, with a remarkably higher rate (26%) among participants with a history of self-cutting. The data suggest that the significance of BMs ranges from simple peer group imitations to highly informative symptoms of possibly severe psychopathological conditions. In the latter case, BMs sometimes serve as therapeutic substitutes.

Design a software real-time operation platform for wave piercing catamarans motion control using linear quadratic regulator based genetic algorithm.

Science.gov (United States)

Liang, Lihua; Yuan, Jia; Zhang, Songtao; Zhao, Peng

2018-01-01

This work presents optimal linear quadratic regulator (LQR) based on genetic algorithm (GA) to solve the two degrees of freedom (2 DoF) motion control problem in head seas for wave piercing catamarans (WPC). The proposed LQR based GA control strategy is to select optimal weighting matrices (Q and R). The seakeeping performance of WPC based on proposed algorithm is challenged because of multi-input multi-output (MIMO) system of uncertain coefficient problems. Besides the kinematical constraint problems of WPC, the external conditions must be considered, like the sea disturbance and the actuators (a T-foil and two flaps) control. Moreover, this paper describes the MATLAB and LabVIEW software plats to simulate the reduction effects of WPC. Finally, the real-time (RT) NI CompactRIO embedded controller is selected to test the effectiveness of the actuators based on proposed techniques. In conclusion, simulation and experimental results prove the correctness of the proposed algorithm. The percentage of heave and pitch reductions are more than 18% in different high speeds and bad sea conditions. And the results also verify the feasibility of NI CompactRIO embedded controller.

27 June 2012 - Ambassador K. Pierce, Permanent Representative of the United Kingdom of Great Britain and Northern Ireland to the United Nations Office and other international organisations in Geneva visiting the LHC tunnel at Point 5 with Department Head P. Collier and CMS control room with Former Collaboration Spokesperson J. Virdee.

CERN Multimedia

Laurent Egli

2012-01-01

27 June 2012 - Ambassador K. Pierce, Permanent Representative of the United Kingdom of Great Britain and Northern Ireland to the United Nations Office and other international organisations in Geneva visiting the LHC tunnel at Point 5 with Department Head P. Collier and CMS control room with Former Collaboration Spokesperson J. Virdee.

Apoptotic effect of a novel kefir product, PFT, on multidrug-resistant myeloid leukemia cells via a hole-piercing mechanism

Science.gov (United States)

GHONEUM, MAMDOOH; GIMZEWSKI, JAMES

2014-01-01

We examined the apoptotic effect of a novel Probiotics Fermentation Technology (PFT) kefir grain product; PFT is a natural mixture composed primarily of Lactobacillus kefiri P-IF, a specific strain of L. kefiri with unique growth characteristics. The aim of this study was to examine the apoptotic effect of PFT on human multidrug-resistant (MDR) myeloid leukemia (HL60/AR) cells in vitro and explore the mechanistic approach underlying its effect. HL60/AR cells were cultured with PFT (0.6–5.0 mg/ml) for 3 days. The apoptotic effect of PFT was assessed through examination of percent apoptosis, caspase 3 activation, Bcl-2 expression levels and changes in mitochondrial membrane potential (MMP). PFT induced apoptosis in HL60/AR cells in a dose-dependent manner which was maximal at 67.5% for 5 mg/ml. Induction of apoptosis was associated with activation of caspase 3, decreased expression of Bcl-2 and decreased polarization of MMP. In addition, PFT showed a unique characteristic of piercing holes in HL60/AR cells, as indicated by AFM studies. This hole induction may be responsible for the apoptotic effect on cancer cells. These results suggest that PFT may act as a potential therapy for the treatment of MDR leukemia. PMID:24430613

Hibiscus latent Fort Pierce virus in Brazil and synthesis of its biologically active full-length cDNA clone.

Science.gov (United States)

Gao, Ruimin; Niu, Shengniao; Dai, Weifang; Kitajima, Elliot; Wong, Sek-Man

2016-10-01

A Brazilian isolate of Hibiscus latent Fort Pierce virus (HLFPV-BR) was firstly found in a hibiscus plant in Limeira, SP, Brazil. RACE PCR was carried out to obtain the full-length sequences of HLFPV-BR which is 6453 nucleotides and has more than 99.15 % of complete genomic RNA nucleotide sequence identity with that of HLFPV Japanese isolate. The genomic structure of HLFPV-BR is similar to other tobamoviruses. It includes a 5' untranslated region (UTR), followed by open reading frames encoding for a 128-kDa protein and a 188-kDa readthrough protein, a 38-kDa movement protein, 18-kDa coat protein, and a 3' UTR. Interestingly, the unique feature of poly(A) tract is also found within its 3'-UTR. Furthermore, from the total RNA extracted from the local lesions of HLFPV-BR-infected Chenopodium quinoa leaves, a biologically active, full-length cDNA clone encompassing the genome of HLFPV-BR was amplified and placed adjacent to a T7 RNA polymerase promoter. The capped in vitro transcripts from the cloned cDNA were infectious when mechanically inoculated into C. quinoa and Nicotiana benthamiana plants. This is the first report of the presence of an isolate of HLFPV in Brazil and the successful synthesis of a biologically active HLFPV-BR full-length cDNA clone.

Multilocus sequence typing of Xylella fastidiosa causing Pierce's disease and oleander leaf scorch in the United States.

Science.gov (United States)

Yuan, Xiaoli; Morano, Lisa; Bromley, Robin; Spring-Pearson, Senanu; Stouthamer, Richard; Nunney, Leonard

2010-06-01

Using a modified multilocus sequence typing (MLST) scheme for the bacterial plant pathogen Xylella fastidiosa based on the same seven housekeeping genes employed in a previously published MLST, we studied the genetic diversity of two subspecies, X. fastidiosa subsp. fastidiosa and X. fastidiosa subsp. sandyi, which cause Pierce's disease and oleander leaf scorch, respectively. Typing of 85 U.S. isolates (plus one from northern Mexico) of X. fastidiosa subsp. fastidiosa from 15 different plant hosts and 21 isolates of X. fastidiosa subsp. sandyi from 4 different hosts in California and Texas supported their subspecific status. Analysis using the MLST genes plus one cell-surface gene showed no significant genetic differentiation based on geography or host plant within either subspecies. Two cases of homologous recombination (with X. fastidiosa subsp. multiplex, the third U.S. subspecies) were detected in X. fastidiosa subsp. fastidiosa. Excluding recombination, MLST site polymorphism in X. fastidiosa subsp. fastidiosa (0.048%) and X. fastidiosa subsp. sandyi (0.000%) was substantially lower than in X. fastidiosa subsp. multiplex (0.240%), consistent with the hypothesis that X. fastidiosa subspp. fastidiosa and sandyi were introduced into the United States (probably just prior to 1880 and 1980, respectively). Using whole-genome analysis, we showed that MLST is more effective at genetic discrimination at the specific and subspecific level than other typing methods applied to X. fastidiosa. Moreover, MLST is the only technique effective in detecting recombination.

Grape Cultivar and Sap Culture Conditions Affect the Development of Xylella fastidiosa Phenotypes Associated with Pierce's Disease.

Science.gov (United States)

Hao, Lingyun; Zaini, Paulo A; Hoch, Harvey C; Burr, Thomas J; Mowery, Patricia

2016-01-01

Xylella fastidiosa is a xylem-limited bacterium in plant hosts and causes Pierce's disease (PD) of grapevines, which differ in susceptibility according to the Vitis species (spp.). In this work we compared X. fastidiosa biofilm formation and population dynamics when cultured in xylem saps from PD-susceptible and -resistant Vitis spp. under different conditions. Behaviors in a closed-culture system were compared to those in different sap-renewal cultures that would more closely mimic the physicochemical environment encountered in planta. Significant differences in biofilm formation and growth in saps from PD-susceptible and -resistant spp. were only observed using sap renewal culture. Compared to saps from susceptible V. vinifera, those from PD-resistant V. aestivalis supported lower titers of X. fastidiosa and less biofilm and V. champinii suppressed both growth and biofilm formation, behaviors which are correlated with disease susceptibility. Furthermore, in microfluidic chambers X. fastidiosa formed thick mature biofilm with three-dimensional (3-D) structures, such as pillars and mounds, in saps from all susceptible spp. In contrast, only small aggregates of various shapes were formed in saps from four out of five of the resistant spp.; sap from the resistant spp. V. mustangensis was an exception in that it also supported thick lawns of biofilm but not the above described 3-D structures typically seen in a mature biofilm from the susceptible saps. Our findings provide not only critical technical information for future bioassays, but also suggest further understanding of PD susceptibility.

Grape Cultivar and Sap Culture Conditions Affect the Development of Xylella fastidiosa Phenotypes Associated with Pierce's Disease.

Directory of Open Access Journals (Sweden)

Lingyun Hao

Full Text Available Xylella fastidiosa is a xylem-limited bacterium in plant hosts and causes Pierce's disease (PD of grapevines, which differ in susceptibility according to the Vitis species (spp.. In this work we compared X. fastidiosa biofilm formation and population dynamics when cultured in xylem saps from PD-susceptible and -resistant Vitis spp. under different conditions. Behaviors in a closed-culture system were compared to those in different sap-renewal cultures that would more closely mimic the physicochemical environment encountered in planta. Significant differences in biofilm formation and growth in saps from PD-susceptible and -resistant spp. were only observed using sap renewal culture. Compared to saps from susceptible V. vinifera, those from PD-resistant V. aestivalis supported lower titers of X. fastidiosa and less biofilm and V. champinii suppressed both growth and biofilm formation, behaviors which are correlated with disease susceptibility. Furthermore, in microfluidic chambers X. fastidiosa formed thick mature biofilm with three-dimensional (3-D structures, such as pillars and mounds, in saps from all susceptible spp. In contrast, only small aggregates of various shapes were formed in saps from four out of five of the resistant spp.; sap from the resistant spp. V. mustangensis was an exception in that it also supported thick lawns of biofilm but not the above described 3-D structures typically seen in a mature biofilm from the susceptible saps. Our findings provide not only critical technical information for future bioassays, but also suggest further understanding of PD susceptibility.

Altered States of Consciousness during an Extreme Ritual

Science.gov (United States)

Loewald, Tonio; Comber, Evelyn M.; Hanson, Sarah A.; Pruitt, Bria

2016-01-01

Extreme rituals (body-piercing, fire-walking, etc.) are anecdotally associated with altered states of consciousness—subjective alterations of ordinary mental functioning (Ward, 1984)—but empirical evidence of altered states using both direct and indirect measures during extreme rituals in naturalistic settings is limited. Participants in the “Dance of Souls”, a 3.5-hour event during which participants received temporary piercings with hooks or weights attached to the piercings and danced to music provided by drummers, responded to measures of two altered states of consciousness. Participants also completed measures of positive and negative affect, salivary cortisol (a hormone associated with stress), self-reported stress, sexual arousal, and intimacy. Both pierced participants (pierced dancers) and non-pierced participants (piercers, piercing assistants, observers, drummers, and event leaders) showed evidence of altered states aligned with transient hypofrontality (Dietrich, 2003; measured with a Stroop test) and flow (Csikszentmihalyi, 1990; Csikszentmihalyi & Csikszentmihalyi, 1990; measured with the Flow State Scale). Both pierced and non-pierced participants also reported decreases in negative affect and psychological stress and increases in intimacy from before to after the ritual. Pierced and non-pierced participants showed different physiological reactions, however, with pierced participants showing increases in cortisol and non-pierced participants showing decreases from before to during the ritual. Overall, the ritual appeared to induce different physiological effects but similar psychological effects in focal ritual participants (i.e., pierced dancers) and in participants adopting other roles. PMID:27175897

Altered States of Consciousness during an Extreme Ritual.

Directory of Open Access Journals (Sweden)

Ellen M Lee

Full Text Available Extreme rituals (body-piercing, fire-walking, etc. are anecdotally associated with altered states of consciousness-subjective alterations of ordinary mental functioning (Ward, 1984-but empirical evidence of altered states using both direct and indirect measures during extreme rituals in naturalistic settings is limited. Participants in the "Dance of Souls", a 3.5-hour event during which participants received temporary piercings with hooks or weights attached to the piercings and danced to music provided by drummers, responded to measures of two altered states of consciousness. Participants also completed measures of positive and negative affect, salivary cortisol (a hormone associated with stress, self-reported stress, sexual arousal, and intimacy. Both pierced participants (pierced dancers and non-pierced participants (piercers, piercing assistants, observers, drummers, and event leaders showed evidence of altered states aligned with transient hypofrontality (Dietrich, 2003; measured with a Stroop test and flow (Csikszentmihalyi, 1990; Csikszentmihalyi & Csikszentmihalyi, 1990; measured with the Flow State Scale. Both pierced and non-pierced participants also reported decreases in negative affect and psychological stress and increases in intimacy from before to after the ritual. Pierced and non-pierced participants showed different physiological reactions, however, with pierced participants showing increases in cortisol and non-pierced participants showing decreases from before to during the ritual. Overall, the ritual appeared to induce different physiological effects but similar psychological effects in focal ritual participants (i.e., pierced dancers and in participants adopting other roles.

Three New Pierce's Disease Pathogenicity Effectors Identified Using Xylella fastidiosa Biocontrol Strain EB92-1.

Science.gov (United States)

Zhang, Shujian; Chakrabarty, Pranjib K; Fleites, Laura A; Rayside, Patricia A; Hopkins, Donald L; Gabriel, Dean W

2015-01-01

Xylella fastidiosa (X. fastidiosa) infects a wide range of plant hosts and causes economically serious diseases, including Pierce's Disease (PD) of grapevines. X. fastidiosa biocontrol strain EB92-1 was isolated from elderberry and is infectious and persistent in grapevines but causes only very slight symptoms under ideal conditions. The draft genome of EB92-1 revealed that it appeared to be missing genes encoding 10 potential PD pathogenicity effectors found in Temecula1. Subsequent PCR and sequencing analyses confirmed that EB92-1 was missing the following predicted effectors found in Temecula1: two type II secreted enzymes, including a lipase (LipA; PD1703) and a serine protease (PD0956); two identical genes encoding proteins similar to Zonula occludens toxins (Zot; PD0915 and PD0928), and at least one relatively short, hemagglutinin-like protein (PD0986). Leaves of tobacco and citrus inoculated with cell-free, crude protein extracts of E. coli BL21(DE3) overexpressing PD1703 exhibited a hypersensitive response (HR) in less than 24 hours. When cloned into shuttle vector pBBR1MCS-5, PD1703 conferred strong secreted lipase activity to Xanthomonas citri, E. coli and X. fastidiosa EB92-1 in plate assays. EB92-1/PD1703 transformants also showed significantly increased disease symptoms on grapevines, characteristic of PD. Genes predicted to encode PD0928 (Zot) and a PD0986 (hemagglutinin) were also cloned into pBBR1MCS-5 and moved into EB92-1; both transformants also showed significantly increased symptoms on V. vinifera vines, characteristic of PD. Together, these results reveal that PD effectors include at least a lipase, two Zot-like toxins and a possibly redundant hemagglutinin, none of which are necessary for parasitic survival of X. fastidiosa populations in grapevines or elderberry.

Three New Pierce's Disease Pathogenicity Effectors Identified Using Xylella fastidiosa Biocontrol Strain EB92-1.

Directory of Open Access Journals (Sweden)

Shujian Zhang

Full Text Available Xylella fastidiosa (X. fastidiosa infects a wide range of plant hosts and causes economically serious diseases, including Pierce's Disease (PD of grapevines. X. fastidiosa biocontrol strain EB92-1 was isolated from elderberry and is infectious and persistent in grapevines but causes only very slight symptoms under ideal conditions. The draft genome of EB92-1 revealed that it appeared to be missing genes encoding 10 potential PD pathogenicity effectors found in Temecula1. Subsequent PCR and sequencing analyses confirmed that EB92-1 was missing the following predicted effectors found in Temecula1: two type II secreted enzymes, including a lipase (LipA; PD1703 and a serine protease (PD0956; two identical genes encoding proteins similar to Zonula occludens toxins (Zot; PD0915 and PD0928, and at least one relatively short, hemagglutinin-like protein (PD0986. Leaves of tobacco and citrus inoculated with cell-free, crude protein extracts of E. coli BL21(DE3 overexpressing PD1703 exhibited a hypersensitive response (HR in less than 24 hours. When cloned into shuttle vector pBBR1MCS-5, PD1703 conferred strong secreted lipase activity to Xanthomonas citri, E. coli and X. fastidiosa EB92-1 in plate assays. EB92-1/PD1703 transformants also showed significantly increased disease symptoms on grapevines, characteristic of PD. Genes predicted to encode PD0928 (Zot and a PD0986 (hemagglutinin were also cloned into pBBR1MCS-5 and moved into EB92-1; both transformants also showed significantly increased symptoms on V. vinifera vines, characteristic of PD. Together, these results reveal that PD effectors include at least a lipase, two Zot-like toxins and a possibly redundant hemagglutinin, none of which are necessary for parasitic survival of X. fastidiosa populations in grapevines or elderberry.

Delivery of dsRNA through topical feeding for RNA interference in the citrus sap piercing-sucking hemipteran, Diaphorina citri.

Science.gov (United States)

Killiny, Nabil; Kishk, Abdelaziz

2017-06-01

RNA interference (RNAi) is a powerful means to study functional genomics in insects. The delivery of dsRNA is a challenging step in the development of RNAi assay. Here, we describe a new delivery method to increase the effectiveness of RNAi in the Asian citrus psyllid Diaphorina citri. Bromophenol blue droplets were topically applied to fifth instar nymphs and adults on the ventral side of the thorax between the three pairs of legs. In addition to video recordings that showed sucking of the bromophenol blue by the stylets, dissected guts turned blue indicating that the uptake was through feeding. Thus, we called the method topical feeding. We targeted the abnormal wing disc gene (awd), also called nucleoside diphosphate kinase (NDPK), as a reporter gene to prove the uptake of dsRNA via this method of delivery. Our results showed that dsRNA-awd caused reduction of awd expression and nymph mortality. Survival and lifespan of adults emerged from treated nymphs and treated adults were affected. Silencing awd caused wing malformation in the adults emerged from treated nymphs. Topical feeding as a delivery of dsRNA is highly efficient for both nymphs and adults. The described method could be used to increase the efficiency of RNAi in D. citri and other sap piercing-sucking hemipterans. © 2017 Wiley Periodicals, Inc.

Characterization of the Xylella fastidiosa PD1311 gene mutant and its suppression of Pierce's disease on grapevines.

Science.gov (United States)

Hao, Lingyun; Johnson, Kameka; Cursino, Luciana; Mowery, Patricia; Burr, Thomas J

2017-06-01

Xylella fastidiosa causes Pierce's disease (PD) on grapevines, leading to significant economic losses in grape and wine production. To further our understanding of X. fastidiosa virulence on grapevines, we examined the PD1311 gene, which encodes a putative acyl-coenzyme A (acyl-CoA) synthetase, and is highly conserved across Xylella species. It was determined that PD1311 is required for virulence, as the deletion mutant, ΔPD1311, was unable to cause disease on grapevines. The ΔPD1311 strain was impaired in behaviours known to be associated with PD development, including motility, aggregation and biofilm formation. ΔPD1311 also expressed enhanced sensitivity to H 2 O 2 and polymyxin B, and showed reduced survival in grapevine sap, when compared with wild-type X. fastidiosa Temecula 1 (TM1). Following inoculation, ΔPD1311 could not be detected in grape shoots, which may be related to its altered growth and sensitivity phenotypes. Inoculation with ΔPD1311 2 weeks prior to TM1 prevented the development of PD in a significant fraction of vines and eliminated detectable levels of TM1. In contrast, vines inoculated simultaneously with TM1 and ΔPD1311 developed disease at the same level as TM1 alone. In these vines, TM1 populations were distributed similarly to populations in TM1-only inoculated plants. These findings suggest that, through an indirect mechanism, pretreatment of vines with ΔPD1311 suppresses pathogen population and disease. © 2016 BSPP AND JOHN WILEY & SONS LTD.

Men are innocent until proven guilty: a comment on the examination of sex differences by Pierce and Kirkpatrick (1992).

Science.gov (United States)

Pickersgill, M J; Arrindell, W A

1994-01-01

Pierce and Kirkpatrick (1992, Behaviour Research and Therapy, 30, 415-418) addressed the finding that men reported lower levels of fear than women in response to specific fear items and concluded on the basis of their experiment that this was because the men were lying. Their conclusion is questioned on various grounds, including inappropriate statistical analyses, inadequate treatment of physiological data, failure to address the possibility of sample selection bias (signalled by the high drop-out rate) and the inadequacy of self-assessed fear measures based on a small number of single items. An alternative interpretation of their data is offered, based on the inverse correlation between initial response level and size of increment, demonstrable in their study in males but not in females. It is argued here that the increments may have been due to anticipatory arousal, a mediating factor that would also account for the facilitation of generalization between certain specific items. It is further suggested that, if this explanation is correct, the men were acting with more rather than less honesty, and it may on the other hand be the reports of the females that were affected by their sex-role stereotype. Another possible explanation of the findings is discussed. If men relatively high in masculinity had a greater tendency to drop out, the experimental sample at the second testing would be biased towards men relatively low in masculinity and reporting higher fear levels.

Contrasting effects of ethylene biosynthesis on induced plant resistance against a chewing and a piercing-sucking herbivore in rice.

Science.gov (United States)

Lu, Jing; Li, Jiancai; Ju, Hongping; Liu, Xiaoli; Erb, Matthias; Wang, Xia; Lou, Yonggen

2014-11-01

Ethylene is a stress hormone with contrasting effects on herbivore resistance. However, it remains unknown whether these differences are plant- or herbivore-specific. We cloned a rice 1-aminocyclopropane-1-carboxylic acid (ACC) synthase gene, OsACS2, whose transcripts were rapidly up-regulated in response to mechanical wounding and infestation by two important pests: the striped stem borer (SSB) Chilo suppressalis and the brown planthopper (BPH) Nilaparvata lugens. Antisense expression of OsACS2 (as-acs) reduced elicited ethylene emission, SSB-elicited trypsin protease inhibitor (TrypPI) activity, SSB-induced volatile release, and SSB resistance. Exogenous application of ACC restored TrypPI activity and SSB resistance. In contrast to SSB, BPH infestation increased volatile emission in as-acs lines. Accordingly, BPH preferred to feed and oviposit on wild-type (WT) plants--an effect that could be attributed to two repellent volatiles, 2-heptanone and 2-heptanol, that were emitted in higher amounts by as-acs plants. BPH honeydew excretion was reduced and natural enemy attraction was enhanced in as-acs lines, resulting in higher overall resistance to BPH. These results demonstrate that ethylene signaling has contrasting, herbivore-specific effects on rice defense responses and resistance against a chewing and a piercing-sucking insect, and may mediate resistance trade-offs between herbivores of different feeding guilds in rice. © The Author 2014. Published by the Molecular Plant Shanghai Editorial Office in association with Oxford University Press on behalf of CSPB and IPPE, SIBS, CAS.

Comet C2012 S1 (ISON): Observations of the Dust Grains From SOFIA and of the Atomic Gas From NSO Dunn and Mcmath-Pierce Solar Telescopes

Science.gov (United States)

Wooden, Diane H.; Woodward, Charles E.; Harker, David E.; Kelley, Michael S. P.; Sitko, Michael; Reach, William T.; De Pater, Imke; Gehrz, Robert D.; Kolokolova, Ludmilla; Cochran, Anita L.;

Draft Genome Sequence of Xylella fastidiosa subsp. fastidiosa Strain Stag?s Leap

OpenAIRE

Chen, J.; Wu, F.; Zheng, Z.; Deng, X.; Burbank, L. P.; Stenger, D. C.

2016-01-01

Xylella fastidiosa subsp. fastidiosa causes Pierce?s disease of grapevine. Presented here is the draft genome sequence of the Stag?s Leap strain, previously used in pathogenicity/virulence assays to evaluate grapevine germplasm bearing Pierce?s disease resistance and a phenotypic assessment of knockout mutants to determine gene function.

Joining of polymer-metal lightweight structures using self-piercing riveting (SPR) technique: Numerical approach and simulation results

Science.gov (United States)

Amro, Elias; Kouadri-Henni, Afia

2018-05-01

Restrictions in pollutant emissions dictated at the European Commission level in the past few years have urged mass production car manufacturers to engage rapidly several strategies in order to reduce significantly the energy consumption of their vehicles. One of the most relevant taken action is light-weighting of body in white (BIW) structures, concretely visible with the increased introduction of polymer-based composite materials reinforced by carbon/glass fibers. However, the design and manufacturing of such "hybrid" structures is limiting the use of conventional assembly techniques like resistance spot welding (RSW) which are not transferable as they are for polymer-metal joining. This research aims at developing a joining technique that would eventually enable the assembly of a sheet molding compound (SMC) polyester thermoset-made component on a structure composed of several high strength steel grades. The state of the art of polymer-metal joining techniques highlighted the few ones potentially able to respond to the industrial challenge, which are: structural bonding, self-piercing riveting (SPR), direct laser joining and friction spot welding (FSpW). In this study, the promising SPR technique is investigated. Modelling of SPR process in the case of polymer-metal joining was performed through the building of a 2D axisymmetric FE model using the commercial code Abaqus CAE 6.10-1. Details of the numerical approach are presented with a particular attention to the composite sheet for which Mori-Tanaka's homogenization method is used in order to estimate overall mechanical properties. Large deformations induced by the riveting process are enabled with the use of a mixed finite element formulation ALE (arbitrary Lagrangian-Eulerian). FE model predictions are compared with experimental data followed by a discussion.

Characterization of the Xylella fastidiosa PD1671 gene encoding degenerate c-di-GMP GGDEF/EAL domains, and its role in the development of Pierce's disease.

Science.gov (United States)

Cursino, Luciana; Athinuwat, Dusit; Patel, Kelly R; Galvani, Cheryl D; Zaini, Paulo A; Li, Yaxin; De La Fuente, Leonardo; Hoch, Harvey C; Burr, Thomas J; Mowery, Patricia

2015-01-01

Xylella fastidiosa is an important phytopathogenic bacterium that causes many serious plant diseases including Pierce's disease of grapevines. X. fastidiosa is thought to induce disease by colonizing and clogging xylem vessels through the formation of cell aggregates and bacterial biofilms. Here we examine the role in X. fastidiosa virulence of an uncharacterized gene, PD1671, annotated as a two-component response regulator with potential GGDEF and EAL domains. GGDEF domains are found in c-di-GMP diguanylate cyclases while EAL domains are found in phosphodiesterases, and these domains are for c-di-GMP production and turnover, respectively. Functional analysis of the PD1671 gene revealed that it affected multiple X. fastidiosa virulence-related phenotypes. A Tn5 PD1671 mutant had a hypervirulent phenotype in grapevines presumably due to enhanced expression of gum genes leading to increased exopolysaccharide levels that resulted in elevated biofilm formation. Interestingly, the PD1671 mutant also had decreased motility in vitro but did not show a reduced distribution in grapevines following inoculation. Given these responses, the putative PD1671 protein may be a negative regulator of X. fastidiosa virulence.

Characterization of the Xylella fastidiosa PD1671 gene encoding degenerate c-di-GMP GGDEF/EAL domains, and its role in the development of Pierce's disease.

Directory of Open Access Journals (Sweden)

Luciana Cursino

Full Text Available Xylella fastidiosa is an important phytopathogenic bacterium that causes many serious plant diseases including Pierce's disease of grapevines. X. fastidiosa is thought to induce disease by colonizing and clogging xylem vessels through the formation of cell aggregates and bacterial biofilms. Here we examine the role in X. fastidiosa virulence of an uncharacterized gene, PD1671, annotated as a two-component response regulator with potential GGDEF and EAL domains. GGDEF domains are found in c-di-GMP diguanylate cyclases while EAL domains are found in phosphodiesterases, and these domains are for c-di-GMP production and turnover, respectively. Functional analysis of the PD1671 gene revealed that it affected multiple X. fastidiosa virulence-related phenotypes. A Tn5 PD1671 mutant had a hypervirulent phenotype in grapevines presumably due to enhanced expression of gum genes leading to increased exopolysaccharide levels that resulted in elevated biofilm formation. Interestingly, the PD1671 mutant also had decreased motility in vitro but did not show a reduced distribution in grapevines following inoculation. Given these responses, the putative PD1671 protein may be a negative regulator of X. fastidiosa virulence.

Ballistic Limit of High-Strength Steel and Al7075-T6 Multi-Layered Plates Under 7.62-mm Armour Piercing Projectile Impact

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N. A. Rahman

Full Text Available Abstract This paper presents the computational-based ballistic limit of laminated metal panels comprised of high strength steel and aluminium alloy Al7075-T6 plate at different thickness combinations to necessitate the weight reduction of existing armour steel plate. The numerical models of monolithic configuration, double-layered configuration and triple-layered configuration were developed using a commercial explicit finite element code and were impacted by 7.62 mm armour piercing projectile at velocity range of 900 to 950 m/s. The ballistic performance of each configuration plate in terms of ballistic limit velocity, penetration process and permanent deformation was quantified and considered. It was found that the monolithic panel of high-strength steel has the best ballistic performance among all panels, yet it has not caused any weight reduction in existing armour plate. As the weight reduction was increased from 20-30%, the double-layered configuration panels became less resistance to ballistic impact where only at 20% and 23.2% of weight reduction panel could stop the 950m/s projectile. The triple-layered configuration panels with similar areal density performed much better where all panels subjected to 20-30% weight reductions successfully stopped the 950 m/s projectile. Thus, triple-layered configurations are interesting option in designing a protective structure without sacrificing the performance in achieving weight reduction.

Relationship Between Piercing-Sucking Insect Control and Internal Lint and Seed Rot in Southeastern Cotton (Gossypium hirsutum L.).

Science.gov (United States)

Medrano, Enrique G; Bell, Alois A; Greene, Jeremy K; Roberts, Phillip M; Bacheler, Jack S; Marois, James J; Wright, David L; Esquivel, Jesus F; Nichols, Robert L; Duke, Sara

2015-08-01

In 1999, crop consultants scouting for stink bugs (Hemiptera spp.) in South Carolina discovered a formerly unobserved seed rot of cotton that caused yield losses ranging from 10 to 15% in certain fields. The disease has subsequently been reported in fields throughout the southeastern Cotton Belt. Externally, diseased bolls appeared undamaged; internally, green fruit contain pink to dark brown, damp, deformed lint, and necrotic seeds. In greenhouse experiments, we demonstrated transmission of the opportunistic bacterium Pantoea agglomerans by the southern green stink bug, Nezara viridula (L.). Here, green bolls were sampled from stink bug management plots (insecticide protected or nontreated) from four South Atlantic coast states (North Carolina, South Carolina, Georgia, and Florida) to determine disease incidence in the field and its association with piercing-sucking insects feeding. A logistic regression analysis of the boll damage data revealed that disease was 24 times more likely to occur (P = 0.004) in bolls collected from plots in Florida, where evidence of pest pressure was highest, than in bolls harvested in NC with the lowest detected insect pressure. Fruit from plots treated with insecticide, a treatment which reduced transmission agent numbers, were 4 times less likely to be diseased than bolls from unprotected sites (P = 0.002). Overall, punctured bolls were 125 times more likely to also have disease symptoms than nonpunctured bolls, irrespective of whether or not plots were protected with insecticides (P = 0.0001). Much of the damage to cotton bolls that is commonly attributed to stink bug feeding is likely the resulting effect of vectored pathogens. Published by Oxford University Press on behalf of Entomological Society of America 2015. This work is written by US Government employees and is in the public domain in the US.

PERCEPÇÕES SOBRE O USO DE PIERCINGS E/OU TATUAGENS POR FUNCIONÁRIOS DE EMPREENDIMENTOS HOTELEIROS DE FOZ DO IGUAÇU/PR (BRASIL

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Andressa Andrieli do Carmo

2011-05-01

Full Text Available A hotelaria apresenta-se como setor padronizado no que diz respeito ao estereótipo de seus funcionários da linha de frente. O setor não apresenta uma aceitação visível ao diferente quando se trata dos recursos humanos da empresa. Para melhor compreender este fenômeno, foi realizada uma pesquisa tomando como referencial temas de hotelaria e turismo, assim como da antropologia tais como estereótipos e mudanças culturais. Foi também aplicado um questionário nos empreendimentos hoteleiros de Foz do Iguaçu/PR, com amostra probabilística, para analisar o nível de aceitação com relação aos funcionários que possuem piercing e/ou tatuagem. Um outro questionário foi aplicado aos turistas nacionais e internacionais que estavam na mesma localidade, com o intuito de analisar a percepção dos mesmos para com a atuação destes profissionais, sendo uma amostra não probabilística. Esta pesquisa quali-quantitativa permitiu que os dados coletados demonstrassem a existência de discriminação nos processos seletivos na hotelaria.

Pipe Rolling from Continuous Cast Metal

International Nuclear Information System (INIS)

Zhordania, I.; Chkhartishvili, I.; Lordkipanidze, J.; Melashvili, Z.; Papava, K.; Khundadze, K.

2007-01-01

The approach to manufacturing of high quality pipes as a result of solid and hollow billet rolling from continuous cast metal is shown. Optimal parameters of piercing, temperature of piercing and piercing rolling mill rollers speed have been experimentally established. (author)

Evidence of deepwater spawning of fall chinook salmon (Oncorhynchus tshawytscha): spawning near Ives and Pierce Island of the Columbia River, 1999; ANNUAL

International Nuclear Information System (INIS)

Mueller, Robert P.; Dauble, Dennis D.

2000-01-01

Fall chinook salmon Oncorhynchus tshawytscha, thought to originate from Bonneville Hatchery, were first noted to be spawning downstream of Bonneville Dam by Washington Department of Fisheries and Wildlife (WDFW) biologists in 1993 (Hymer 1997). Known spawning areas include gravel beds on the Washington side of the river near Hamilton Creek and Ives island. Limited spawning ground surveys were conducted in the area around Ives and Pierce Islands during 1994-1997 and based on these surveys it was believed that fall chinook salmon successfully spawned in this area. The size of this population from 1994 to 1996 was estimated at 1,800 to 5,200 fish (Hymer 1997). Recently, chum salmon were also documented spawning downstream of Bonneville Dam. Chum salmon O. kisutch were listed as threatened under the Endangered Species Act (ESA) in March, 1999. There are several ongoing investigations to define the physical habitat characteristics associated with fall chinook and chum salmon spawning areas downstream of Bonneville Dam. A major concern is to determine what flows (i.e. surface elevations) are necessary to ensure their long-term survival. Our objective was to locate deepwater spawning locations in the main Columbia River channel and to collect additional data on physical habitat parameters at the site. This objective is consistent with the high priority that the Northwest Power Planning Council's Independent Advisory Board and the salmon managers have placed on determining the importance of mainstem habitats to the production of salmon in the Columbia River Basin

Oral Tattoos: ′Beauty Lies in the Eyes of the Beholder′

Directory of Open Access Journals (Sweden)

Pankaj Mishra

2015-01-01

Full Text Available Background: Body piercing is a cultural practice or tradition in various civilizations dating back to antiquity. In recent years, body piercing has become increasingly fashionable for purely esthetic reasons and the practice cuts across all sectors of society. The emergence of oral tattoos especially among young adults is of concern to dental and medical professionals because of the risks and complications for oral, dental and general health. Intraoral piercings involve the tongue, while perioral piercings involve the lips, the cheeks and to a lesser extent the uvula and the frenum. Education is a primary method to intercept or prevent risky behavior of oral piercing and dental professionals have a major role in providing guidance about perioral /oral modification.

75 FR 71139 - Land Acquisitions; Puyallup Tribe of Washington

Science.gov (United States)

2010-11-22

... Auditor, in Pierce County, Washington. Except that portion of Lot 3 conveyed to the State of Washington by Deeds recorded under Auditor's file number 689865 and 689858. Together with the East half of the... amendment of Short Plat Nos. 8502210395 and 8403080186, filed with the Pierce County Auditor, in Pierce...

Body Piercing

Science.gov (United States)

... site and jewelry carefully. Avoid jewelry made of nickel or brass. These metals can cause allergic reactions. ... KnowRead Article >>Genetic Testing: What You Should KnowOccupational Exposure to LeadRead Article >>Occupational Exposure to Lead Visit ...

Twee patiënten met acute hepatitis B uit dezelfde piercingsalon

NARCIS (Netherlands)

de Man, R A; Bosman, A; Stevens-Schretzmeijer, M; Niesters, H G

1999-01-01

Hepatitis B was diagnosed in two homosexual men aged 41 and 31 years. Both had undergone piercing on the same day in the same saloon. The word piercing means application of decorations in the skin which is pierced for the purpose. The breeching of the skin combined with the conditions under which

Noctuidae moths occurring in grape orchards in Serra Gaúcha, Brazil and their relation to fruit-piercing Mariposas Noctuidae presentes em parreirais na Serra Gaúcha, Brasil e sua relação com a perfuração dos frutos

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Maurício Moraes Zenker

2010-06-01

Full Text Available There is no study aiming to investigate if Noctuidae moths are responsible for piercing cultivated fruits in South America. This research aims to survey noctuid moths and list the species with mouth-parts (proboscis morphology that suggest the capacity to cause damages to grape orchards in the state of Rio Grande do Sul, Brazil. Catches were carried out weekly from late November 2007 to late March 2008 (fructification period using light traps and McPhail traps in three grape orchards in the region of Serra Gaúcha. The catches resulted in 187 taxa, with 149 identified at the specific level and 38 at genus level. The proboscises of representative taxa were removed and analyzed under stereomicroscope and scan electron microscope. It was verified that only Oraesia argyrosema (Hampson, 1926 and Gonodonta biarmata Guenée, 1852 show proboscis with suitable morphology for piercing rind and pulp of a grape berry. Achaea ablunaris (Guenée, 1852; Ascalapha odorata (Linnaeus, 1758; Letis mineis Geyer, 1827; Mocis latipes Hübner, 1823; Ophisma tropicalis Guenée, 1852, and Zale exhausta (Guenée, 1852 show proboscis only adapted to lacerate the pulp. The proboscis morphology of the remaining noctuid moths suggests lack of capacity to cause damage. Despite the presence of species capable of piercing grape berries, the populations of such species are very reduced and unable to cause damage of economic level.Na América do Sul inexistem estudos que investiguem se noctuídeos adultos são responsáveis pela perfuração de frutos cultivados. Visando avaliar a ocorrência e listar as espécies que apresentam aparelho bucal (espirotromba com morfologia que sugira a capacidade de causar danos à cultura da uva no Rio Grande do Sul, Brasil, foram realizadas coletas semanais entre o final de novembro de 2007 e o final de março de 2008 (período de frutificação utilizando armadilhas luminosas e McPhail em três áreas de cultivo na Serra Gaúcha. As coletas

Population genomic analysis of a bacterial plant pathogen: novel insight into the origin of Pierce's disease of grapevine in the U.S.

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Leonard Nunney

Full Text Available Invasive diseases present an increasing problem worldwide; however, genomic techniques are now available to investigate the timing and geographical origin of such introductions. We employed genomic techniques to demonstrate that the bacterial pathogen causing Pierce's disease of grapevine (PD is not native to the US as previously assumed, but descended from a single genotype introduced from Central America. PD has posed a serious threat to the US wine industry ever since its first outbreak in Anaheim, California in the 1880s and continues to inhibit grape cultivation in a large area of the country. It is caused by infection of xylem vessels by the bacterium Xylella fastidiosa subsp. fastidiosa, a genetically distinct subspecies at least 15,000 years old. We present five independent kinds of evidence that strongly support our invasion hypothesis: 1 a genome-wide lack of genetic variability in X. fastidiosa subsp. fastidiosa found in the US, consistent with a recent common ancestor; 2 evidence for historical allopatry of the North American subspecies X. fastidiosa subsp. multiplex and X. fastidiosa subsp. fastidiosa; 3 evidence that X. fastidiosa subsp. fastidiosa evolved in a more tropical climate than X. fastidiosa subsp. multiplex; 4 much greater genetic variability in the proposed source population in Central America, variation within which the US genotypes are phylogenetically nested; and 5 the circumstantial evidence of importation of known hosts (coffee plants from Central America directly into southern California just prior to the first known outbreak of the disease. The lack of genetic variation in X. fastidiosa subsp. fastidiosa in the US suggests that preventing additional introductions is important since new genetic variation may undermine PD control measures, or may lead to infection of other crop plants through the creation of novel genotypes via inter-subspecific recombination. In general, geographically mixing of previously

Caption of an Abstract of Title

Data.gov (United States)

Department of the Interior — This report was prepared for Pierce Estates, Inc. after the death of St. Vincent Island’s owner, R.V. Pierce. It contains a number of documents including Pierce’s...

Dental Exam for Children

Science.gov (United States)

... risks associated with tobacco, substance abuse and oral piercings. Why it's done Regular dental exams help protect ... sugary beverages Smoking Chewing tobacco Eating disorders Oral piercings Not wearing a mouthguard during contact sports The ...

E-tutoring programs' integration in Greek School Education. Pierce e-tutoring online program. An Appraisal of Its Operation

OpenAIRE

Δουκάκης, Σπυρίδων; Μιχαλοπούλου, Γεωργία

2016-01-01

Τα προγράμματα/υπηρεσίες e-tutoring που υλοποιούνται σε πραγματικό χρόνο, προσφέρουν ευκαιρίες εκπαίδευσης και ανάπτυξης των μαθητών και μαθητριών δευτεροβάθμιας εκπαίδευσης. Στην παρούσα εργασία, αρχικά θα επιχειρηθεί μία επισκόπηση της διεθνούς βιβλιογραφίας σχετικά με την υλοποίηση προγραμμάτων etutoring. Στη συνέχεια θα παρουσιαστεί το Pierce e-tutoring online program, το οποίο ξεκίνησε την πιλοτική του λειτουργία το σχολικό έτος 2012-2013 και από το σχολικό έτος 2013-2014 μέχρι και σήμερ...

Advanced Data Mining of Leukemia Cells Micro-Arrays

OpenAIRE

Richard S. Segall; Ryan M. Pierce

2009-01-01

This paper provides continuation and extensions of previous research by Segall and Pierce (2009a) that discussed data mining for micro-array databases of Leukemia cells for primarily self-organized maps (SOM). As Segall and Pierce (2009a) and Segall and Pierce (2009b) the results of applying data mining are shown and discussed for the data categories of microarray databases of HL60, Jurkat, NB4 and U937 Leukemia cells that are also described in this article. First, a background section is pro...

Hızma Induced Papul of Nose Mimicking Pyogenic Granuloma

Directory of Open Access Journals (Sweden)

Mualla Polat

2014-09-01

Full Text Available The application of body piercing is popular among young people, who consider it as a sign of marginality, beauty, or group identity. Piercing procedure is observed to cause a large number of complications such as infections, pain, inflammatory reactions, bleeding, dental fractures or fissures, and gingival damage, etc., mostly in young individuals. Hizma is a traditional body ornament worn by Anatolian women via a piercing procedure. Herein, we describe a papule of nose mimicking pyogenic granuloma as an uncommon complication of Hızma.

Temperature measuring element in nuclear reactors

International Nuclear Information System (INIS)

Wada, Takashi.

1987-01-01

Purpose: To easily measure the partial maximum temperature at a portion within the nuclear reactor where the connection with the external portion is difficult. Constitution: Sodium, potassium or the alloy thereof with high heat expansion coefficient is packed into an elastic vessel having elastic walls contained in a capsule. A piercing member formed into an acute triangle is attached to one end in the direction of expansion and contraction of the elastic container. The two sides of the triangle form an acute knife edge. A diaphragm is disposed within a capsule at a position opposed to the sharpened direction of the piercing member. Such a capsule is placed in a predetermined position of the nuclear reactor. The elastic vessel causes thermal expansion displacement depending on the temperature at a certain position, by which the top end of the pierce member penetrates through the diaphragm. A pierced scar of a penetration length depending on the temperature is resulted to the diaphragm. The length of the piercing damage is electroscopically observed and compared with the calibration curve to recognize the maximum temperature in the predetermined portion of the nuclear reactor. (Kamimura, M.)

Events Calendar: Smithsonian Marine Ecosystems Exhibit: Smithsonian Marine

Science.gov (United States)

current Smithsonian research on the plants and animals of the Indian River Lagoon and marine environments Station (SMS) at Fort Pierce Smithsonian Marine Station at Fort Pierce Website Search Box History Modeling Ecosystems Virtual Tour Facebook Instagram Twitter SMS Home › Smithsonian Marine

Disarming Microaggressions: How Black College Students Self-Regulate Racial Stressors within Predominately White Institutions

Science.gov (United States)

Watkins, Nicole L.

2012-01-01

The nature of racism in the United States has transformed from overt prejudice and blatant discrimination to more covert, embedded, ambiguous manifestations called racial microaggressions (Constantine, 2007; Pierce, Carew, Pierce-Gonzalez, & Willis, 1978; Sue, Capidolupo et al., 2007). Researchers have demonstrated the unique, harmful, and…

Simulations of the DARPA Suboff Submarine Including Self-Propulsion with the E1619 Propeller

Science.gov (United States)

2012-01-01

Young and Kinnas (2003) to evaluate supercavitating and surface-piercing propellers. The simulation’s predicted results compare well with experimental...Young Y, Kinnas S. 2003. Analysis of supercavitating and surface-piercing propeller flows via BEM. Comput. Mech. 32, 269-280. Yu-cun P, Huai-xin Z

30 CFR 56.7807 - Flushing the combustion chamber.

Science.gov (United States)

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Flushing the combustion chamber. 56.7807 Section 56.7807 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND... Rotary Jet Piercing Rotary Jet Piercing § 56.7807 Flushing the combustion chamber. The combustion chamber...

The Fateful Rift: The San Andreas Fault in the Modern Mind.

Science.gov (United States)

Percy, Walker

1990-01-01

Claims that modern science is radically incoherent and that this incoherence lies within the practice of science. Details the work of the scientist and philosopher Charles Sanders Pierce, expounding on the difference between Rene Descartes' dualistic philosophy and Pierce's triadic view. Concludes with a brief description of the human existence.…

Exploring the Relationship between Racial Identity, Microaggressions, and Academic Outcomes among African American Students in the Classrooms of a Predominantly White Campus

Science.gov (United States)

Fernandez, Andrea M.

2014-01-01

The overt nature of racism in the United States has morphed into an insidious, covert manifestation called racial microaggression (Pierce, Carew, Pierce-Gonzalez, & Wills, 1978; Sue, Capodilupo, et al., 2007). Though not often intentional in nature, these microaggressive behaviors have become pervasive in the lives of people of color (Sue,…

30 CFR 57.7807 - Flushing the combustion chamber.

Science.gov (United States)

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Flushing the combustion chamber. 57.7807... and Rotary Jet Piercing Rotary Jet Piercing-Surface Only § 57.7807 Flushing the combustion chamber. The combustion chamber of a jet drill stem which has been sitting unoperated in a drill hole shall be...

Ink and Holes: Correlates and Predictive Associations of Body Modification among Adolescents

Science.gov (United States)

Dukes, Richard L.; Stein, Judith A.

2011-01-01

We examined correlates and predictive associations of tattoos and body piercings among 1,462 Colorado students in grades 9 to 12. More boys (19%) than girls (17%) reported tattoos, but more girls (42%) than boys (16%) reported piercings (earlobes not included). Older students reported more body modification. Structural equation models showed that…

APPLICATIONS OF A SINGLE CARBON ELECTRODE

African Journals Online (AJOL)

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Page 1 ... ABSTRACT: A single carbon electrode used with a common arc welder has been successfully used on steel to weld, to surface harden, to spot weld sheet, to pierce holes and to do simple brazing. ... applications: welding, spot welding, hole piercing, etc. The metal tube holding the carbon electrodes is banded with ...

The Cylindrical Component Methodology Evaluation Module for MUVES-S2

Science.gov (United States)

2017-04-01

following threat types: armor piercing (AP), armor-piercing incendiary (API), kinetic energy (KE), shaped charge jet (SCJ), explosively formed penetrator ...a Shaped-Charge (SC) Munition, Kinetic Energy (KE) Penetrator , Explosively Formed Penetrator (EFP), Joint Technical Coordinating Group (JTCG...Threat: Sample Shaped-Charge (SC), Kinetic Energy (KE) Penetrator , Explosively Formed Penetrator (EFP), JTCG Frag, FATEPEN frag

TERRAIN, PIERCE, COUNTY, USA

Data.gov (United States)

Federal Emergency Management Agency, Department of Homeland Security — Terrain data, as defined in FEMA Guidelines and Specifications, Appendix N: Data Capture Standards, describes the digital topographic data that was used to create...

Caring for Pierced Ears

Science.gov (United States)

... Registration General information Housing & travel Education Exhibit hall Mobile app 2019 Annual Meeting Derm Exam Prep Course ... SkinPAC State societies Scope of practice Truth in advertising NP/PA laws Action center Public and patients ...

TERRAIN, Pierce County, WA

Data.gov (United States)

Federal Emergency Management Agency, Department of Homeland Security — Terrain data, as defined in FEMA Guidelines and Specifications, Appendix N: Data Capture Standards, describes the digital topographic data that was used to create...

Mindre inventar og personlige ejendele

DEFF Research Database (Denmark)

Madsen, Hans Jørgen; Pedersen, Unn; Roesdahl, Else

2014-01-01

Groups of finds from Aggersborg: keys and locks, casket-hasps, ornamental mount and nail, combs, tweezers, bone pins and bodkins, gamin-pieces, pierced metatarsus, small axe-head, weight......Groups of finds from Aggersborg: keys and locks, casket-hasps, ornamental mount and nail, combs, tweezers, bone pins and bodkins, gamin-pieces, pierced metatarsus, small axe-head, weight...

Reflections on the Law and Curricular Values in American Schools

Science.gov (United States)

Russo, Charles J.; Thro, William E.

2012-01-01

The Supreme Court's 1925 ruling in "Pierce v. Society of the Sisters of the Holy Names of Jesus and Mary" ("Pierce"), striking down a law from Oregon that would have required all children, other than those needing special education, between the ages of 8 and 16 to attend public schools, essentially upheld the right of nonpublic…

The nature of cometary materials

International Nuclear Information System (INIS)

Stephens, J.

1989-01-01

Because cometary surfaces are likely to be far colder and of a different composition than planetary surfaces, there are some new considerations that must be examined in regards to placing instrumented packages or sample return devices on their surfaces. The qualitative analysis of the problem of attaching hardware to a comet and not being ejected back into space can be divided into two parts. The first problem is to pierce the mantle and obtain access to the icy core. Drilling through the mantle requires that the drilling forces be reacted. Reacting such forces probably requires attachment to the icy core below. Therefore, some kinetic impact piercing device is likely to be required as the first act of attachment. The second problem for a piercing device to overcome is the force produced by the impact kinetic energy that tries to eject the piercing device back into space. The mantle and icy core can absorb some of the impact kinetic energy in the form of fracture formation and friction energy. The energy that is not absorbed in these two ways is stored by the core as elastic deformation of the mantle and icy core. It is concluded that because the cometary materials are almost certainly brittle and the icy core is likely to be self lubricating, the elastic rebound and gas pressure expulsion forces must be counteracted by forces greater than those that may be provided by a piercing device or its capture devices (barbs)

Rehabilitation of Nose following Chemical Burn Using CAD/CAM Made Substructure for Implant Retained Nasal Prosthesis: A Clinical Report

Directory of Open Access Journals (Sweden)

Saurabh Chaturvedi

2017-01-01

Full Text Available Insufficient knowledge of medical chemicals and their improper use have destructive effects. Accidental exposure to chemicals on facial tissue may result in large facial defect. For ages the tradition of piercing nose is common but improper use of unknown chemical for piercing has deleterious effect. Mostly rhinectomy defects are acquired caused by trauma or malignant diseases. Prosthetic rehabilitation is the preferred treatment of choice for any large rhinectomy defects as medical and surgical interventions are ineffective in developing esthetics. Main concern with the prosthesis for such defects is retention. This article describes rehabilitation of a patient with large size nasal defect created by chemical burn in childhood during piercing. Implant retained customized silicone nasal prosthesis was fabricated using simple O-ring attachments and innovative modified polyamide acrylic resin substructure acting as skeleton.

Heat transfer augmentation along the tube wall of a louvered fin heat exchanger using practical delta winglets

Energy Technology Data Exchange (ETDEWEB)

Lawson, Michael J.; Thole, Karen A. [Mechanical and Nuclear Engineering Department, The Pennsylvania State University, University Park, PA 16802 (United States)

2008-05-15

Delta winglets are known to induce the formation of streamwise vortices and increase heat transfer between a working fluid and the surface on which the winglets are placed. This study investigates the use of delta winglets to augment heat transfer on the tube surface of louvered fin heat exchangers. It is shown that delta winglets placed on louvered fins produce augmentations in heat transfer along the tube wall as high as 47% with a corresponding increase of 19% in pressure losses. Manufacturing constraints are considered in this study whereby piercings in the louvered fins resulting from stamping the winglets into the louvered fins are simulated. Comparisons of measured heat transfer coefficients with and without piercings indicate that piercings reduce average heat transfer augmentations, but significant increases still occur with respect to no winglets present. (author)

Complete nucleotide sequence and genome structure of a Japanese isolate of hibiscus latent Fort Pierce virus, a unique tobamovirus that contains an internal poly(A) region in its 3' end.

Science.gov (United States)

Yoshida, Tetsuya; Kitazawa, Yugo; Komatsu, Ken; Neriya, Yutaro; Ishikawa, Kazuya; Fujita, Naoko; Hashimoto, Masayoshi; Maejima, Kensaku; Yamaji, Yasuyuki; Namba, Shigetou

2014-11-01

In this study, we detected a Japanese isolate of hibiscus latent Fort Pierce virus (HLFPV-J), a member of the genus Tobamovirus, in a hibiscus plant in Japan and determined the complete sequence and organization of its genome. HLFPV-J has four open reading frames (ORFs), each of which shares more than 98 % nucleotide sequence identity with those of other HLFPV isolates. Moreover, HLFPV-J contains a unique internal poly(A) region of variable length, ranging from 44 to 78 nucleotides, in its 3'-untranslated region (UTR), as is the case with hibiscus latent Singapore virus (HLSV), another hibiscus-infecting tobamovirus. The length of the HLFPV-J genome was 6431 nucleotides, including the shortest internal poly(A) region. The sequence identities of ORFs 1, 2, 3 and 4 of HLFPV-J to other tobamoviruses were 46.6-68.7, 49.9-70.8, 31.0-70.8 and 39.4-70.1 %, respectively, at the nucleotide level and 39.8-75.0, 43.6-77.8, 19.2-70.4 and 31.2-74.2 %, respectively, at the amino acid level. The 5'- and 3'-UTRs of HLFPV-J showed 24.3-58.6 and 13.0-79.8 % identity, respectively, to other tobamoviruses. In particular, when compared to other tobamoviruses, each ORF and UTR of HLFPV-J showed the highest sequence identity to those of HLSV. Phylogenetic analysis showed that HLFPV-J, other HLFPV isolates and HLSV constitute a malvaceous-plant-infecting tobamovirus cluster. These results indicate that the genomic structure of HLFPV-J has unique features similar to those of HLSV. To our knowledge, this is the first report of the complete genome sequence of HLFPV.

Trend of CO2 laser cutting; Saikin no CO2 laser setsudan

Energy Technology Data Exchange (ETDEWEB)

Fujii, T.; Sano, Y.; Nagahori, M. [Tanaka Engineering Works Ltd., Saitama (Japan)

1998-08-01

This paper describes CO2 laser cutting of medium thick plates. Carbon dioxide laser is mainly used for laser generators. The generation efficiency of CO2 laser is 5 to 15% which is higher than that of the other lasers. Ninety percent of the usage is for cutting, piercing and welding. Laser cutter having a separated generator with a power from 3 to 6 kW is often used for cutting medium thick plates. The recent trend of new cutting technology is introduced. When power is increased from 3 kW to 6 kW without using oxygen as assist gas, the cutting thickness of stainless steel plate increased into 1.5 times, and the cutting speed increased into 1.5 to 2 times. For the soft steel members with black coating in which the power-up effects have not been obtained, the cutting speed, quality of cutting surface and cutting stability were improved by introducing new technology. Piercing time has been reduced by developing a method by which pulse generation is changed during piercing and a method by which piercing is conducted by irradiating the maximum power of continuous generation. Cutting quality with high accuracy has been realized by developing light weight generator and high performance NC unit. 10 figs.

Relationship between nickel and cobalt sensitization in hard metal workers

Energy Technology Data Exchange (ETDEWEB)

Rystedt, I; Fischer, T

1983-05-01

Eight hundred fifty-three hard metal workers were examined and patch tested with 20 substances from their environment, including nickel and cobalt. Nickel sensitivity was found in 2 men and 38 women. 88% of the nickel-sensitive individuals had developed a jewelry dermatitis prior to employment in the hard metal industry or before the appearance of hand eczema. 29% of the hard metal workers gave a history of slight irritant dermatitis. In the nickel sensitized group, 40% had had severe hand eczema which generally appeared 6-12 months after starting employment. In 25% of the cases, nickel sensitive individuals developed cobalt allergy, compared with 5% in the total population investigated. Most facts indicate that nickel sensitivity and irritant hand eczema precede cobalt sensitization. Hard metal workers with simultaneous nickel and cobalt sensitivity had a more severe hand eczema than those with isolated cobalt or nickel sensitivity or only irritant dermatitis. 64% of the female population had pierced ear lobes. Among the nickel allergic women, 95% had pierced ear lobes. The use of earrings containing nickel after piercing is strongly suspected of being the major cause of nickel sensitivity. Piercing at an early age seems to increase the risk of incurring nickel sensitivity.

Underground docking of shields for the first time under the sea by MSD method. Shield for a gas pipe line to Shin Nagoya thermal power station of Chubu Electric Power Co. Ltd.,; Kaiteika hatsu no MSD koho ni yoru shirudo chichu setsugo. Chubu Denryoku Shin Nagoya Karyoku Hatsudensho gas dokan shirudo koji

Energy Technology Data Exchange (ETDEWEB)

Kobayashi, Y. [Shimizu Corp., Tokyo (Japan)

1997-04-25

MSD (mechanical shield docking) method is a method for mechanical docking two shields which have been extended simultaneously from both ends of one section of tunnel boring to shorten work term. One of the two shields has a piercing ring on its tip and another has a receiving ring. In the final stage of boring, the two ring are docked directly by piercing-receiving. The MSD method has been applied for the first time under sea to a boring work of an under sea tunnel on a route of a gas pipe line from Chita LNG base, Aichi prefecture to the title power station. This paper reports the outline of the shield machine and horizontal boring for confirming shield position that is a key to an underground docking as well as docking work. In the horizontal boring, after the shield machine on receiving side had reached the docking point predestined, the shield machine on piercing side conducted primary boring at 20 m front of the docking point and then secondary boring at 3 m front, whereby the boring hole was pierced into the shield machine on the receiving side. The accomplishment of this work made certain the reliability of MSD method even under sea. 1 ref., 13 figs., 3 tabs.

2011 International Infantry and Joint Services Small Arms Systems Symposium, Exhibition and Firing Demonstration

Science.gov (United States)

2011-05-26

Kinetics Tungsten Carbide Material Research and Development of Small Arms Ammunition Armour Piercing, Mr. Fredrik Eringe, Nammo Talley 12818 - Tracer...Ammunition Armour Piercing Mr. Fredrik Eringe, Nammo Talley SMALL ARMS SYSTEMS AGENDA: 05/25/11 2:40 pm - 3:10 pm BREAK - EXHIBIT HALL 3:10 pm - 4:50...inroads within the academic community by way of word-of-mouth advertisement at the faculty and the student level  Ability to sponsor needed research

How Piercings and Tattooing Work

Science.gov (United States)

... Registration General information Housing & travel Education Exhibit hall Mobile app 2019 Annual Meeting Derm Exam Prep Course ... SkinPAC State societies Scope of practice Truth in advertising NP/PA laws Action center Public and patients ...

LAMURU CORN SEED QUALITY IN DIFFERENT STORE PERIOD WITH SOME STUDIES METHOD

Directory of Open Access Journals (Sweden)

Rahmawati

2014-01-01

Full Text Available Research quality of seed executed at green house and laboratory of seed, Hall of Research of Crop of Serealia Maros in May 2013. Maize used is Lamuru coming from warehouse of UPBS Balitsereal with period keep 12 and 23 month. Research conducted by using RCD four replicated. Result: test by using sand media show percentage germinate, speed growth, length root, amount root of secondary, long of shoot and seed of sprout do not differ significant. Examinatied by piercing paper test to show percentage germinated, speed growth and dry wight of sprout differ significant, while length root, amount secondary root and seed shoot not significant. Use of Brick gravel test to show same result by is piercing paper test except dry weight of sprout at brick gravel test to show result which do not significant. Seed with period keep 12 month have percentage germinate, dry weight sprout, long root primary, sum up root secondary and same seed length at all method test, while speed growth to differ significant at piercing paper test. Seed with period keep 23 month show different result by 12 month. Dry weight sprout, long root primary, sum up root secondary and seed length shoot show same result, while speed growth show different result at third test method. Percentage germinate obtained by piercing paper test to differ significant by brick is gravel test and sand media.

Nonlinear behaviors of a bounded electron beam-plasma system

International Nuclear Information System (INIS)

Iizuka, Satoru; Saeki, Koichi; Sato, Noriyoshi; Hatta, Yoshisuke

1985-01-01

Nonlinear developments of a bounded electron beam-plasma system including stationary electrons are investigated experimentally. A stable double layer is formed as a result of ion trapping in a growing negative potential dip induced by the Pierce instability above the current regime of the Buneman instability. In the in-between regime of the Buneman and Pierce instabilities, energetic ions are observed. This effective ion heating is caused by ion detrapping due to double-layer disruption, being consistent with computer simulation. (author)

The Context of Body Art

Directory of Open Access Journals (Sweden)

Renata Clerici

2011-10-01

Full Text Available The present study analyses factors associated with the propensity for piercing and tattooing among adolescents, from a survey conducted in 2007 in high schools in the Veneto Region (Northeast Italy. After some descriptive analyses, multinomial logistic regression models were applied to identify what predicts the practice of, interest in, or indifference to piercing and tattooing. Results show gender differences in the approach to body modification: For girls, body art is considered a mainstream activity involving younger cohorts; piercing and tattooing become a way of increasing their own body satisfaction. For boys, factors connected with the propensity for these practices are a low cultural background and the importance given to physical appearance. For both boys and girls, a significant aspect in defining attitudes toward body art practices is the values system: Values such as enjoyment, beauty, and youth, are found to be closely connected with a high propensity for these practices.

The Change of Cultural Depictions on Chinese and American Print Smoking Advertising

OpenAIRE

Zhang, Qian

2011-01-01

Advertising is not only a communication tool, but also a differentiation marketing strategy in tobacco industry (Hong et al., 1987). Smoking advertising is a significant stimulation of cigarette demands. It has to take the blame for the increasing smoking-related deaths (Pierce et al., 1999). As a result, it has been banned in the United States in the 1960s and China in 2005 (Pierce et al., 1998). According to the literature and the database of the smoking advertising, from year 1901 to 2000,...

Measurement of HbA1c and HbA2 by Capillarys 2 Flex Piercing HbA1c programme for simultaneous management of diabetes and screening for thalassemia.

Science.gov (United States)

Ke, Peifeng; Liu, Jiawei; Chao, Yan; Wu, Xiaobin; Xiong, Yujuan; Lin, Li; Wan, Zemin; Wu, Xinzhong; Xu, Jianhua; Zhuang, Junhua; Huang, Xianzhang

2017-10-01

Thalassemia could interfere with some assays for haemoglobin A 1c (HbA 1c ) measurement, therefore, it is useful to be able to screen for thalassemia while measuring HbA 1c . We used Capillarys 2 Flex Piercing (Capillarys 2FP) HbA 1c programme to simultaneously measure HbA 1c and screen for thalassemia. Samples from 498 normal controls and 175 thalassemia patients were analysed by Capillarys 2FP HbA 1c programme (Sebia, France). For method comparison, HbA 1c was quantified by Premier Hb9210 (Trinity Biotech, Ireland) in 98 thalassaemia patients samples. For verification, HbA 1c from eight thalassaemia patients was confirmed by IFCC reference method. Among 98 thalassaemia samples, Capillarys 2FP did not provide an HbA 1c result in three samples with HbH due to the overlapping of HbBart's with HbA 1c fraction; for the remaining 95 thalassaemia samples, Bland-Altman plot showed 0.00 ± 0.35% absolute bias between two systems, and a significant positive bias above 7% was observed only in two HbH samples. The HbA 1c values obtained by Capillarys 2FP were consistent with the IFCC targets (relative bias below ± 6%) in all of the eight samples tested by both methods. For screening samples with alpha (α-) thalassaemia silent/trait or beta (β-) thalassemia trait, the optimal HbA 2 cut-off values were ≤ 2.2% and > 2.8%, respectively. Our results demonstrated the Capillarys 2FP HbA 1c system could report an accurate HbA 1c value in thalassemia silent/trait, and HbA 2 value (≤ 2.2% for α-thalassaemia silent/trait and > 2.8% for β-thalassemia trait) and abnormal bands (HbH and/or HbBart's for HbH disease, HbF for β-thalassemia) may provide valuable information for screening.

Advanced Data Mining of Leukemia Cells Micro-Arrays

Directory of Open Access Journals (Sweden)

Richard S. Segall

2009-12-01

Full Text Available This paper provides continuation and extensions of previous research by Segall and Pierce (2009a that discussed data mining for micro-array databases of Leukemia cells for primarily self-organized maps (SOM. As Segall and Pierce (2009a and Segall and Pierce (2009b the results of applying data mining are shown and discussed for the data categories of microarray databases of HL60, Jurkat, NB4 and U937 Leukemia cells that are also described in this article. First, a background section is provided on the work of others pertaining to the applications of data mining to micro-array databases of Leukemia cells and micro-array databases in general. As noted in predecessor article by Segall and Pierce (2009a, micro-array databases are one of the most popular functional genomics tools in use today. This research in this paper is intended to use advanced data mining technologies for better interpretations and knowledge discovery as generated by the patterns of gene expressions of HL60, Jurkat, NB4 and U937 Leukemia cells. The advanced data mining performed entailed using other data mining tools such as cubic clustering criterion, variable importance rankings, decision trees, and more detailed examinations of data mining statistics and study of other self-organized maps (SOM clustering regions of workspace as generated by SAS Enterprise Miner version 4. Conclusions and future directions of the research are also presented.

Investigation of unstable periodic space-time states in distributed active system with supercritical current

International Nuclear Information System (INIS)

Koronovskij, A.A.; Rempen, I.S.; Khramov, A.E.

2003-01-01

The set of the unstable periodic space-time states, characterizing the chaotic space-time dynamics of the electron beam with the supercritical current in the Pierce diode is discussed. The Lyapunov indicators of the revealed instable space-time states of the chaotic dynamics of the distributed self-excited system are calculated. It is shown that change in the set of the unstable periodic states in dependence on the Pierce parameter is determined by change in the various orbits stability, which is demonstrated by the values of senior Lyapunov unstable state index [ru

Contact sensitization to common haptens is associated with atopic dermatitis: new insight

DEFF Research Database (Denmark)

Thyssen, J P; Linneberg, A; Engkilde, K

2012-01-01

and questioned about AD Results: The variable "contact sensitization to common chemicals, but not nickel and thimerosal", was significantly associated with atopic dermatitis (OR=2.53; CI95%=1.59-4.04). The higher prevalence of contact sensitization was mainly driven by fragrance chemicals. In a sub......-analysis in non-pierced women, a positive association was also found for nickel sensitization. Nickel and thimerosal sensitization may introduce bias in data analysis since these allergies often develop following skin piercing where the skin compartments are bypassed. Discussion: We suspect that individuals...

Design of low velocity-spread cusp guns for axis encircling beams

International Nuclear Information System (INIS)

Lawson, W.

1987-01-01

The design of a novel electron gun suitable for intense beam cyclotron resonance devices is introduced here. An annular Pierce-type gun is used in conjunction with an unbalanced nonadiabatic field reversal and an adiabatic compression region to produce an axis-encircling beam. This beam is ideally suited for interaction with electromagnetic waves that have strong on-axis electric fields (e.g., the TE 0 /sub 11/ mode). Low velocity spreads are achieved by utilizing the beam self-fields in the compression region and by focusing in the Pierce gun

The current status of immunotoxins: an overview of experimental and clinical studies as presented at the Third International Symposium on Immunotoxins.

Science.gov (United States)

Uckun, F M; Frankel, A

1993-02-01

The Third International Symposium on Immunotoxins was held on June 19-21, 1992 in Orlando, Florida. This symposium was sponsored by NATO, NIH, Pierce Chemical Company, Walt Disney Cancer Institute at Florida Hospital, Duke Comprehensive Cancer Center, Xoma, Immunogen, Seragen, Bristol-Myers Squibb, Chiron, Ortho Biotech, Upjohn, Merck Sharp & Dohme Research Laboratories, Abbot Laboratories, Lilly Research Laboratories, and Evans & Sutherland. The Pierce Immunotoxin Award which recognizes outstanding contributions to immunotoxin research and development, was presented to Drs David FitzGerald, Fatih Uckun, David Eisenberg, and Ira Wool, for their contributions to the immunotoxin field.

[Forensic medical expertise of the stab wounds: the current state-of-the art].

Science.gov (United States)

Sarkisian, B A; Karpov, D A

2014-01-01

This review of special literature encompasses the publications on the injuries inflicted by piercing objects. The results of analysis of these materials indicate that both the mechanisms of formation and the morphological features of stab wounds and damages to the clothes are studied perfectly well. Their shape and morphological patterns are shown to be dependent on the size, shape, and cross-section area of the great variety of the piercing objects. However, investigations carried out thus far did not take into consideration the formation of the signs of skin plastic deformation, such as edge portions of borderline thickening, stretching of epidermis over the walls, transformation of the epidermal network pattern into longitudinal folding, etc. It is concluded that further studies are necessary to better characterize injuries inflicted by piercing objects differing in the sharpness and the shape of cross section and thereby to obtain a deeper insight in the morphological features. It can be expected that such studies will provide a basis for the development of criteria for the individual and intra-group expert identification of the traumatic agents.

Nuclear Track-Etched Pore Membrane Production Using OAEP's Research Reactor

International Nuclear Information System (INIS)

Chittrakarn, Thawat; Bhongsuwan, Tripob; Wanichapichart, Pikul; Nuanuin, Paiboon; Chongkum, Somporn; Khonduangkaew, Areerat; Bordeepong, Sunaree

2003-10-01

Result of this study shows that the OAEP's nuclear research reactor is a good source of both fast and thermal neutrons for pore piercing process on polycarbonate thin film. With our experimental design, the fast neutron provides better results in pore piercing comparing with thermal neutron bombardment. This can be explained that most of the latent tracks that occur by thermal neutron bombardment do not piercing through the thin film. Chemical etching process using NaOH solution with an appropriated time, concentration and temperature was employed to enlarge the latent tracks in the bombarded film by fast neutrons. Fast neutron bombardment with 5, 10 and 20 minutes bombarding time successfully produces the nuclear track membrane. Pore size and pore density of the produced membranes examined by SEM were 0.24-1.01 μm and 4.67 - 245 x 10 6 pore/cm 2 , respectively. Bubble point test showed the maximum pore diameter of the produced membrane ranged between 1.18 - 3.25 μm. Water permeability was studied and compared between the produced and commercial membranes

PRODUCTION OF URANIUM TUBING

Science.gov (United States)

Creutz, E.C.

1958-04-15

The manufacture of thin-walled uranium tubing by the hot-piercing techique is described. Uranium billets are preheated to a temperature above 780 d C. The heated billet is fed to a station where it is engaged on its external surface by three convex-surfaced rotating rollers which are set at an angle to the axis of the billet to produce a surface friction force in one direction to force the billet over a piercing mandrel. While being formed around the mandrel and before losing the desired shape, the tube thus formed is cooled by a water spray.

Infections associated with body modification

Directory of Open Access Journals (Sweden)

Samson Sai-Yin Wong

2012-12-01

Full Text Available Although exact statistics are lacking, body modifications for cosmetic purposes are performed in many countries. The commonest forms include tattooing, body piercing, and breast and facial augmentation using implants or injectable fillers. Liposuction and, to a lesser extent, mesotherapy are also practiced in many countries. Infective complications of these procedures include local infections, transmission of bloodborne pathogens (viral hepatitis and human immunodeficiency virus, and distant infections such as infective endocarditis. Presence of foreign bodies, long healing time of piercing wounds, and poor compliance with infection control practices of some practitioners all predispose the recipients to infections. Apart from the endogenous microbial flora of the skin and mucosae, atypical mycobacteria, especially the rapid growers, have emerged as some of the most important pathogens in such settings. Outbreaks of infection are commonly reported. We hereby review the current knowledge of the topic with specific focus on infections associated with tattooing, body piercing, breast augmentation, mesotherapy, liposuction, and tissue filler injections. Greater awareness among consumers and health-care professionals, as well as more stringent regulations by the health authorities, is essential to minimize the health risks arising from these procedures.

Bootstrap Power of Time Series Goodness of fit tests

Directory of Open Access Journals (Sweden)

Sohail Chand

2013-10-01

Full Text Available In this article, we looked at power of various versions of Box and Pierce statistic and Cramer von Mises test. An extensive simulation study has been conducted to compare the power of these tests. Algorithms have been provided for the power calculations and comparison has also been made between the semi parametric bootstrap methods used for time series. Results show that Box-Pierce statistic and its various versions have good power against linear time series models but poor power against non linear models while situation reverses for Cramer von Mises test. Moreover, we found that dynamic bootstrap method is better than xed design bootstrap method.

A comparison of synthetic and measured solar continuum intensities and limb darkening coefficients

International Nuclear Information System (INIS)

Ayres, T.R.

1978-01-01

Absolute continuum intensities and wavelength-dependent low-order polynomial fits to optical and infrared continuum limb darkening provide useful discriminants among single-component models of the solar photosphere. The thermal structure in best quantitative agreement with the recent center-limb measurements by Pierce and Slaughter (1977) and by Pierce et.al. (1977) is the semi-empirical model by Vernazza, Avrett and Loeser (VAL). However, the VAL model M temperatures must be scaled upward by a factor of 1.015+-0.005 to be consistent with the Labs and Neckel absolute calibration of continuum high points in the optical region 0.40-0.65 μm. (Auth.)

Suitability of selected free-gas and dissolved-gas sampling containers for carbon isotopic analysis.

Science.gov (United States)

Eby, P; Gibson, J J; Yi, Y

2015-07-15

Storage trials were conducted for 2 to 3 months using a hydrocarbon and carbon dioxide gas mixture with known carbon isotopic composition to simulate typical hold times for gas samples prior to isotopic analysis. A range of containers (both pierced and unpierced) was periodically sampled to test for δ(13)C isotopic fractionation. Seventeen containers were tested for free-gas storage (20°C, 1 atm pressure) and 7 containers were tested for dissolved-gas storage, the latter prepared by bubbling free gas through tap water until saturated (20°C, 1 atm) and then preserved to avoid biological activity by acidifying to pH 2 with phosphoric acid and stored in the dark at 5°C. Samples were extracted using valves or by piercing septa, and then introduced into an isotope ratio mass spectrometer for compound-specific δ(13)C measurements. For free gas, stainless steel canisters and crimp-top glass serum bottles with butyl septa were most effective at preventing isotopic fractionation (pierced and unpierced), whereas silicone and PTFE-butyl septa allowed significant isotopic fractionation. FlexFoil and Tedlar bags were found to be effective only for storage of up to 1 month. For dissolved gas, crimp-top glass serum bottles with butyl septa were again effective, whereas silicone and PTFE-butyl were not. FlexFoil bags were reliable for up to 2 months. Our results suggest a range of preferred containers as well as several that did not perform very well for isotopic analysis. Overall, the results help establish better QA/QC procedures to avoid isotopic fractionation when storing environmental gas samples. Recommended containers for air transportation include steel canisters and glass serum bottles with butyl septa (pierced and unpierced). Copyright © 2015 John Wiley & Sons, Ltd.

77 FR 71111 - Approval and Promulgation of Air Quality Implementation Plans; State of Florida; Regional Haze...

Science.gov (United States)

2012-11-29

... Phosphates Company-- South Pierce; International Paper Company--Pensacola Mill; Mosaic-- Bartow; Mosaic... Terminal; Georgia Pacific-Palatka; Smurfit-Stone- Fernandina Beach; Smurfit-Stone-Panama City; Mosaic-New...

Thermionic source design

International Nuclear Information System (INIS)

True, R.

1988-01-01

This paper describes codes and methods used to design high quality diode and gridded Pierce guns. Such guns are used in travelling wave tubes, klystrons, linear accelerators, free-electron lasers, and other E-beam devices. PC code TMLBMC is discussed. Either this code (or PRCGUN) can be used to obtain a preliminary gun design. Two methods useful in determining the electrode contours external to the beam (focus electrode and anode with hole) are presented. These are based on matching the fields along the beam edge and in the center of the Pierce gun. An analytic method, and a numerical method based on the solution of Laplace's equation (in combination with data from TMLBMC), are presented

Present status of the theoretical relativistic plasma SHF electronics

International Nuclear Information System (INIS)

Kuzelev, M.V.; Rukhadze, A.A.

2000-01-01

Paper presents a review of theoretical investigations into powerful sources of SHF waves grounded on the forced emission of relativistic electron beams in plasma wave guides and resonator. Emission sources operating under amplification of a certain inlet signal and under generation mode were studied. Two mechanisms of forced emission: resonance Cherenkov radiation of relativistic electron beams in plasma and nonresonance Pierce emission resulting from evolution of high-frequency Pierce instability, were studied. Paper discusses theoretical problems only, all evaluations and calculations are made for the parameters of the exact experiments, the theoretical results are compared with the available experimental data. Factors affecting formation of spectrum of waves excited by relativistic electron beam in plasma systems are discussed [ru

76 FR 53020 - Nebraska Disaster #NE-00041

Science.gov (United States)

2011-08-24

...): Nebraska: Antelope, Cedar, Cuming, Dodge, Holt, Keya Paha, Lancaster, Otoe, Pierce, Rock, Saunders..., Charles Mix, Clay, Gregory, Union, Yankton. The Interest Rates are: Percent For Physical Damage...

Focused Ultrasound Surgery for Uterine Fibroids

Science.gov (United States)

... or electronic devices inside your body, such as metallic joint prostheses, artificial heart valves, implanted electronic devices, cochlear implants, body piercings or dental implants. Other precautions The ...

75 FR 22873 - Nebraska Disaster # NE-00035

Science.gov (United States)

2010-04-30

..., Madison, Nance, Nemaha, Nuckolls, Otoe, Pawnee, Pierce, Platte, Polk, Richardson, Saline, Seward, Stanton... of Federal Domestic Assistance Numbers 59002 and 59008) James E. Rivera, Associate Administrator for...

Melting of hydrous upper mantle and possible generation of andesitic magma: an approach from synthetic systems

Energy Technology Data Exchange (ETDEWEB)

Kushiro, I

1974-07-01

Phase equilibria in a portion of the system forsterite--plagioclase (An/sub 50/Ab/sub 50/ by weight)--silica--H/sub 2/O have been determined at 15 kbar pressure under H/sub 2/O-saturated conditions. The composition of the liquid pertinent to the piercing point forsterite + enstatite solid solution + amphibole + liquid + vapor is similar to that of calc-alkaline andesite. The electron microprobe analysis of the glass coexisting with the above three crystalline phases is very close to that of the piercing point determined by phase assemblage observations; however, the glass near (less than 8 ..mu..m) forsterite crystals is significantly depleted in the normative forsterite component. With the addition of 10 wt. percent KAlSi/sub 3/O/sub 8/, the composition of this piercing point becomes even closer to the compositions of calc-alkaline andesites. It is also shown that the liquid coexisting with forsterite and enstatite solid solution remains silica-rich (60 to 62 wt. percent) over a wide (approximately 100/sup 0/C) temperature range. The present experimental studies support the view that liquids similar in composition to calc-alkaline andesites can be generated by direct partial melting of hydrous upper mantle at least at or near 15 kbar.

Assessment of Suicidal Behavior in a Psychiatric Emergency Room in Lisbon.

Science.gov (United States)

Marques, João Gama; Guerreiro, Diogo Frasquilho; Sampaio, Daniel

2015-01-01

Some studies alerted for the burden of suicidal attempters at emergency rooms. In this study we characterized the suicidal patients admitted to a Portuguese emergency room. For three years, all patients assessed by the first author after suicidal behaviour were included. Suicidal intentionality was evaluated with the Pierce Suicide Intent Scale. Clinical records were searched for follow-up status and satisfaction level was assessed through telephone call. From 120 included patients 70.8% were female, with mean age of 42.35 years. Pierce Suicide Intent Scale suicidal intentionality was low in 30.1%, medium in 59.3%, and high in 10.6% of the sample. The most important predictors of Pierce Suicide Intent Scale intentionality were male gender (p suicide (p Suicide Intent Scale is useful on suicidal behavior assessment at emergency rooms. Highly intentional suicidal behaviour is related to male sex, social problems and personal and familial psychiatric history. The quality of administrative records on this psychiatric emergency room setting are still unacceptable. The most important variables correlated with higher suicidal intentionality are the same described in other countries. Of the reachable patients, one fifth was satisfied with provided follow-up. We still need studies for better understanding of suicidal behaviour observed on this Portuguese emergency room.

Dirac fermions in nontrivial topology black hole backgrounds

International Nuclear Information System (INIS)

Gozdz, Marek; Nakonieczny, Lukasz; Rogatko, Marek

2010-01-01

We discuss the behavior of the Dirac fermions in a general spherically symmetric black hole background with a nontrivial topology of the event horizon. Both massive and massless cases are taken into account. We will conduct an analytical study of intermediate and late-time behavior of massive Dirac hair in the background of a black hole with a global monopole and dilaton black hole pierced by a cosmic string. In the case of a global monopole swallowed by a static black hole, the intermediate late-time behavior depends on the mass of the Dirac field, the multiple number of the wave mode, and the global monopole parameter. The late-time behavior is quite independent of these factors and has a decay rate proportional to t -5/6 . As far as the black hole pierced by a cosmic string is concerned, the intermediate late-time behavior depends only on the hair mass and the multipole number of the wave mode, while the late-time behavior dependence is the same as in the previous case. The main modification stems from the topology of the S 2 sphere pierced by a cosmic string. This factor modifies the eigenvalues of the Dirac operator acting on the transverse manifold.

Tatu, pirsing i bodi-art / kunsti

Index Scriptorium Estoniae

kunsti

2007-01-01

Rahvusvaheline tätoveerimise ja naha perforeerimise (body piercing) festival Tattoo-Collection-2007 Kiievis. Osalejad Ukrainast, Venemaalt, Valgevenest, Poolast ja Tšehhist. Toimus ka kehamaalingute tšempionaat

75 FR 12792 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

Science.gov (United States)

2010-03-17

...., 209 & 301 W. Pierce, & 524 & 600 Huntington, Council Bluffs, 10000160 MASSACHUSETTS Franklin County... following resources: WEST VIRGINIA Jefferson County Beverley, 1 Burns Farm Rd., Charles Town, 87000486 [FR...

Possible Problems: Inverted, Flat, or Pierced Nipples

Science.gov (United States)

... Healthy Living Healthy Living Healthy Living Nutrition Fitness Sports Oral Health Emotional Wellness Growing Healthy Sleep Safety & Prevention Safety & Prevention Safety and Prevention Immunizations ...

Covering and piercing disks with two centers

KAUST Repository

Ahn, Heekap; Kim, Sangsub; Knauer, Christian; Schlipf, Lena; Shin, Chansu; Vigneron, Antoine E.

2013-01-01

We give exact and approximation algorithms for two-center problems when the input is a set D of disks in the plane. We first study the problem of finding two smallest congruent disks such that each disk in D intersects one of these two disks. Then we study the problem of covering the set D by two smallest congruent disks. © 2012 Elsevier B.V.

Covering and piercing disks with two centers

KAUST Repository

Ahn, Heekap

2013-04-01

We give exact and approximation algorithms for two-center problems when the input is a set D of disks in the plane. We first study the problem of finding two smallest congruent disks such that each disk in D intersects one of these two disks. Then we study the problem of covering the set D by two smallest congruent disks. © 2012 Elsevier B.V.

FLOODPLAIN, PIERCE COUNTY, WISCONSIN, AND INCORPORATED AREAS

Data.gov (United States)

Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

Coastal Analysis Submission for Pierce County, WA

Data.gov (United States)

Federal Emergency Management Agency, Department of Homeland Security — Coastal study data as defined in FEMA Guidelines and Specifications, Appendix D: Final Draft Guidelines for Coastal Flood Hazard Analysis and Mapping for the Pacific...

Notch Signaling: Piercing a Harness of Simplicity

NARCIS (Netherlands)

Helbig, Christina; Amsen, Derk

2015-01-01

The Notch pathway is an attractive therapeutic target for treatment of cancer and T cell-mediated pathology, but Notch inhibition leads to many side effects. Pinnell et al. (2015) demonstrate that oncogenic functions can be separated biochemically from other functions of Notch, opening new options

Piercing of corporate veil of nuclear companies

International Nuclear Information System (INIS)

Frenz, Walter

2015-01-01

The Federal Ministry of Economics plans that the nuclear companies with all their assets to cover disposal costs can be used where a power plant operator is governed by its parent company, hence the latter Capital or voting majority of the operators holding or these passes; To date, the parent company is liable only limited and not more than five years after the end of the domination of one Subsidiary, oparating a power plant. In this way, prevents ultimately the public sector and thus the Taxpayers have to pay for the long-term consequences of the use of nuclear energy. Until now ensured paragraph 303 AktG a group law Secondary liability the parent companies of the operating company in the case of of termination of the control and profit transfer agreements is very limited for the nuclear liabilities, namely in two ways: The claim is only focused on the backup performance and not at the expense of acquisition and Moreover, according to the case law limited of five years after its foundation; for the area of transformation law comparable rules are valid. thereby the dismantling of a nuclear power station takes just already for 20 years and a final repository is expected before 2050 not be available. [de

Covering and piercing disks with two centers

KAUST Repository

Ahn, Heekap; Kim, Sangsub; Knauer, Christian; Schlipf, Lena; Shin, Chansu; Vigneron, Antoine E.

2011-01-01

We consider new versions of the two-center problem where the input consists of a set D of disks in the plane. We first study the problem of finding two smallest congruent disks such that each disk in intersects one of these two disks. Then we study the problem of covering the set D by two smallest congruent disks. We give exact and approximation algorithms for these versions. © 2011 Springer-Verlag.

the doctrine of piercing the corporate veil

African Journals Online (AJOL)

eliasn

below (as stated in Stephen Griffin, Company law: fundamental principles).4 ..... opportunities, the nation's economic and financial growth, stability and ..... shareholders, common officers, centralized accounting, payment of wages by one.

TANGGUNG JAWAB ORGAN PERSEROAN TERBATAS DALAM KASUS KEPAILITAN

Directory of Open Access Journals (Sweden)

Siti Hapsah Isfardiyana

2015-06-01

Full Text Available Abstract This paper aims to determine the responsibility of the Company's internal organs, namely the shareholders, Directors and Commissioners, if the Company suffered a loss to not be able to pay its debts to creditors and eventually bankrupted due to improper legal organ of the Company while the Company Indonesia adopts a separate entity and limited liability. However, limited liability can be changed to unlimited liability by piercing the corporate viel abusing his authority when organs Company. Authority Board of Directors and Commissioner based the principle of fiduciary duty. In this study the authors will use the method of normative conceptual approach that moved from the separate entity doctrine, limited liability, fiduciary duty, and piercing the corporate viel to look for suitability in laws and crustaceans. Accountability organs according to the Company's separate entity, limited liability, fiduciary duty, and piercing the corporate viel has been set in the laws and regulations. Each organ can be held accountable if found guilty of negligence or willful misconduct that led to the bankruptcy of the Company. Shareholders applied Article 3 paragraph (2 of the PT, the Board of Directors subject to Article 104 paragraph (2 of the PT, the Commissioner subject to Article 115 Paragraph (1 and paragraph (2 of the PT. Board of Directors and the Commissioner can also be charged with Article 1365 and 1366 of the Civil Code. In addition, the Criminal Code also can ensnare the Board of Directors and Commissioners with Article 398 and 399 of the Criminal Code. Key words: responsibility, organ, bankruptcy   Abstrak Tulisan ini bertujuan untuk mengetahui tanggung jawab organ Perseroan yaitu pemegang saham, Direksi dan Komisaris, apabila Perseroan mengalami kerugian hingga tidak bisa membayar utang-utangnya kepada kreditor dan akhirnya dipailitkan akibat kesalahan organ Perseroan sedangkan hukum Perseroan Indonesia menganut sistem separate entity dan

75 FR 5628 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

Science.gov (United States)

2010-02-03

... Robin Way and Pierce Rd., Altus, 10000033 Stone County North Sylamore Creek Bridge (Historic Bridges of...., Glen Ellyn, 10000038 MASSACHUSETTS Essex County First Parish Burial Ground, 122-R Centennial Ave...

Development of a Ballistic Specification for Magnesium Alloy AZ31B

National Research Council Canada - National Science Library

Jones, Tyrone L; DeLorme, Richard D

2008-01-01

.... The magnesium alloy plates were parametrically compared with the minimum performance requirements of aluminum alloy 5083-H131 temper rolled plate using various armor-piercing and fragment-simulating projectiles (FSPs...

Hake Survey ADCP (2005)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Shipboard acoustic Doppler current profiler data collected during the Integrated Acoustic and Trawl Surveys of Pacific Hake. Processing by: Stephen Pierce, Oregon...

Hake Survey ADCP (1998)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Shipboard acoustic Doppler current profiler data collected during the Integrated Acoustic and Trawl Surveys of Pacific Hake. Processing by: Stephen Pierce, Oregon...

Hake Survey ADCP (1995)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Shipboard acoustic Doppler current profiler data collected during the Integrated Acoustic and Trawl Surveys of Pacific Hake. Processing by: Stephen Pierce, Oregon...

Hake Survey ADCP (2001)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Shipboard acoustic Doppler current profiler data collected during the Integrated Acoustic and Trawl Surveys of Pacific Hake. Processing by: Stephen Pierce, Oregon...

Hake Survey ADCP (2003)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Shipboard acoustic Doppler current profiler data collected during the Integrated Acoustic and Trawl Surveys of Pacific Hake. Processing by: Stephen Pierce, Oregon...

Bridging the gap between chewing and sucking in the hemipteroid insects: new insights from Cretaceous amber.

Science.gov (United States)

Yoshizawa, Kazunori; Lienhard, Charles

2016-02-11

The diversity of feeding apparatuses in insects far exceeds that observed in any other animal group. Consequently, tracking mouthpart innovation in insects is one of the keys toward understanding their diversification. In hemipteroid insects (clade Paraneoptera or Acercaria: lice, thrips, aphids, cicadas, bugs, etc.), the transition from chewing to piercing-and-sucking mouthparts is widely regarded as the turning point that enabled hyperdiversification of the Hemiptera, the fifth largest insect order. However, the transitional process from chewing to piercing-and-sucking in the Paraneoptera was hitherto completely unknown. In this paper, we report a well preserved mid Cretaceous amber fossil of the paraneopteran insect family Archipsyllidae and describe it as Mydiognathus eviohlhoffae gen. et sp. n. This species has elongate mandibles and styliform laciniae similar to Hemiptera but retains functional chewing mouthparts. A number of morphological characters place the Archipsyllidae as the sister group of the thrips plus hemipterans, which strongly suggests that the mouthparts of M. eviohlhoffae represent a transitional condition from primitive chewing to derived piercing-and-sucking mouthparts. The clade composed of Archipsyllidae, thrips, and hemipterans is here named Pancondylognatha, a new supra-ordinal taxon. Based on newly obtained information, we also assess the monophyly of the Paraneoptera, which was called into question by recent phylogenomic analyses. A phylogenetic analysis that includes Mydiognathus strongly supports the monophyly of the Paraneoptera.

A line beam electron gun for rapid thermal processing

Science.gov (United States)

Pauli, M.; Müller, J.; Hartkopf, K.; Barth, T.

1992-04-01

A line beam electron gun based on the Pierce gun type was developed. The line cathode was realized by a directly heated tungsten rod. The temperature distribution along the tungsten rod was simulated numerically. The simulation shows a flat temperature across 2/3 of the cathode length and it agrees with appropriate measurable parameters. The beam profiles of the electron gun perpendicular to the line direction were examined as a function of electrical and geometrical parameters: The space-charge distribution in front of the cathode was found to be responsible for the shape of the beam profile. The shape of the beam profile is weakly influenced by the acceleration to the anode. The heating current induced voltage drop along the cathode was found to be responsible for the nonuniform emission in line direction. A model for the emission behavior of the line beam electron gun was developed. The model is based on the results of the measurements and on a numerical simulation of the potential distribution in the area between Pierce reflectors and anode. The emission model shows a solution to homogenize the emission by a suitable variation of geometrical parameters in line direction. A linear variation was realized in experiment which enables a uniform emission across 2/3 of the cathode length. The beam profile is adjustable by a bias voltage between the cathode and the Pierce reflectors.

Body-art practices among undergraduate medical university students in Dar Es Salaam, Tanzania, 2014

Directory of Open Access Journals (Sweden)

Chacha Emmanuel Chacha

2015-01-01

Full Text Available Background: Body-art practices are increasing among adolescents and young adults. Although substantial data are available in developed countries, little has been documented about body-art practices in developing countries. Objective: To determine the magnitude, types and reasons for practicing body-art practices among undergraduate medical University students in Dar es Salaam, Tanzania. Materials and Methods: A cross-sectional descriptive study was conducteed among undergraduate University students in Dar es Salaam involving 536 respondents from two Universities. We used a self-administered questionnaire to collect data. Analyses were based on summary measures and bivariate analyses. Results: While 7.5% of undergraduate students reported having tattoos, 20% reported having body puncturing or piercing. Body piercing is reported more among female university undergraduate students than their male counterparts. Reported main reasons for undergoing body-art include "a mark of beauty," 24%, "just wanted one," 18% and "a mark of femininity or masculinity," 17%. The majority (98% of students were aware that unsafe body-art practices may lead to contracting HIV and more than half (52% reported awareness of the risk of Hepatitis B infection. Conclusions: Despite high awareness of the potential risks involved in unsafe body arts that include tattoo and piercing, these practices are increasing among adolescents and young adults. There is need to have educational and counseling efforts so as to minimize associated health risks.

Body-art practices among undergraduate medical university students in dar es salaam, Tanzania, 2014.

Science.gov (United States)

Chacha, Chacha Emmanuel; Kazaura, Method R

2015-01-01

Body-art practices are increasing among adolescents and young adults. Although substantial data are available in developed countries, little has been documented about body-art practices in developing countries. To determine the magnitude, types and reasons for practicing body-art practices among undergraduate medical University students in Dar es Salaam, Tanzania. A cross-sectional descriptive study was conducteed among undergraduate University students in Dar es Salaam involving 536 respondents from two Universities. We used a self-administered questionnaire to collect data. Analyses were based on summary measures and bivariate analyses. While 7.5% of undergraduate students reported having tattoos, 20% reported having body puncturing or piercing. Body piercing is reported more among female university undergraduate students than their male counterparts. Reported main reasons for undergoing body-art include "a mark of beauty," 24%, "just wanted one," 18% and "a mark of femininity or masculinity," 17%. The majority (98%) of students were aware that unsafe body-art practices may lead to contracting HIV and more than half (52%) reported awareness of the risk of Hepatitis B infection. Despite high awareness of the potential risks involved in unsafe body arts that include tattoo and piercing, these practices are increasing among adolescents and young adults. There is need to have educational and counseling efforts so as to minimize associated health risks.

Hey! A Chigger Bit Me!

Science.gov (United States)

... called larvae), but only the baby chiggers bother people and animals. Chiggers have tiny claws that allow them to attach tightly onto people and animals. Once attached, they can pierce the skin and ...

Mast Wake Reduction by Shaping

National Research Council Canada - National Science Library

Beauchamp, Charles H

2005-01-01

The present invention relates to various mast shapes, in which the mast shapes minimize the production of visible, electro-optic, infrared and radar cross section wake signatures produced by water surface piercing masts...

ON SOME RECURRENCE TYPE SMARANDACHE SEQUENCES

OpenAIRE

MAJUMDAR, A.A.K.; GUNARTO, H.

2000-01-01

In this paper, we study some properties of ten recurrence type Smarandache sequences, namely, the Smarandache odd, even, prime product, square product, higher-power product, permutation, consecutive, reverse, symmetric, and pierced chain sequences.

Full-scale turbine-missile concrete impact experiments. Final report

International Nuclear Information System (INIS)

Woodfin, R.L.

1983-02-01

Four full-scale experiments were conducted at Sandia National Laboratories' rocket sled facility to provide data on the response of reinforced concrete containment walls to impact and penetration by postulated turbine-produced missiles. The missiles' mass, velocity, and attitude, and the steel liner thickness, were varied. A 1476-kg, 120 0 segment cut from a shrunk-on turbine disc was used for three experiments, and a 2100-kg, 137 0 segment of another disc was used for one experiment. The targets were concrete panels fabricated of commercial ready-mix concrete of strength 24 to 28 MPa at 28 days and heavily reinforced (approx. = 5% by volume) with No. 18 (57-mm-dai) bars. Impacts were perpendicular to the targets at their centers. Three impacts were with the sharp corner of the missile forward (piercing) and one was with the rounded side forward (blunt). Rebar strains, liner strains, and rear face kinematic quantities were recorded for each test. Internal pressure pulses generated by the impacts were recorded on two tests. High-speed camera coverage was extensive. Depth of penetration was the primary measure diameter. Penetration depths into the 1.37-m-thick panels ranged from 33 cm for the blunt impact of the 1476-kg missile at 92 m/s to 65 cm for the piercing impact of the 2100-kg missile at 115m/s. Impact at the piercing attitude caused significantly more severe rear face cracking than did impact at the blunt attitude, but since rear face panel displacements in excess of 6 cm and velocities greater than 7 m/s were measured, results suggested that impact at a blunt attitude might cause scabbing at lower velocities than impact at a piercing attidude. In these tests, the presence of a 9.5-mm-thick steel liner on the rear face of the panel in the latter two tests precluded scabbing. Results also indicated that design formulas in common use give conservative results

Ozone Generators That Are Sold as Air Cleaners

Science.gov (United States)

... Air Conditioning Engineers (ASHRAE). 1989. ASHRAE Handbook of Fundamentals . Atlanta. p. 12.5. Boeniger, Mark F. 1995. ... Indoor Ozone Levels. Journal of Air and Waste Management Association . 41:161-170. Pierce, Mark W.; Janczewski, ...

75 FR 28682 - Qualification of Drivers; Exemption Applications; Vision

Science.gov (United States)

2010-05-21

... and devices showing standard red, green, and amber (49 CFR 391.41(b)(10)). FMCSA recognizes that some... T. Montoya, Doug L. Norman, Richard W. Pierce, Christopher A. Reineck, Carroll R. Rogers, Kevin L...

Cephalopod stocks are of relatively recent impor- tance to ...

African Journals Online (AJOL)

spamer

... of relatively recent impor- tance to international commercial fisheries, often being ... Scottish fishery catches consisting almost entirely of. L. forbesi (Pierce et al. ...... statistics (Cressie 1991,. Cressie and Ver Hoef 1993) and General Additive.

Intermittent many-body dynamics at equilibrium

Science.gov (United States)

Danieli, C.; Campbell, D. K.; Flach, S.

2017-06-01

The equilibrium value of an observable defines a manifold in the phase space of an ergodic and equipartitioned many-body system. A typical trajectory pierces that manifold infinitely often as time goes to infinity. We use these piercings to measure both the relaxation time of the lowest frequency eigenmode of the Fermi-Pasta-Ulam chain, as well as the fluctuations of the subsequent dynamics in equilibrium. The dynamics in equilibrium is characterized by a power-law distribution of excursion times far off equilibrium, with diverging variance. Long excursions arise from sticky dynamics close to q -breathers localized in normal mode space. Measuring the exponent allows one to predict the transition into nonergodic dynamics. We generalize our method to Klein-Gordon lattices where the sticky dynamics is due to discrete breathers localized in real space.

Oculina Habitat Area of Concern Assessment

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Scientists and students will be exploring the deepwater coral reefs of the Oculina Banks, which stretch 30 miles offshore from Ft. Pierce to Cape Canaveral. This...

Children's (Pediatric) Magnetic Resonance Imaging

Medline Plus

Full Text Available ... items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a ...

MRI of the Chest

Medline Plus

Full Text Available ... items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a ...

Magnetic Resonance Imaging (MRI) -- Head

Medline Plus

Full Text Available ... items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a ...

Arthrography

Medline Plus

Full Text Available ... items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a ...

Ne speshite jego horonit / Stanislav F. Rostotski

Index Scriptorium Estoniae

Rostotski, Stanislav F.

2000-01-01

Bondi-filmide minevikust ja oletatavast tulevikust seoses uue Bondi-filmiga "007 ja liiga kitsas maailm" ("The World Is Not Enough") : režissöör Michael Apted : Peaosas Pierce Brosnan : Suurbritannia - Ameerika Ühendriigid 1999

The idea factory: Bell Labs and the great age of American innovation

National Research Council Canada - National Science Library

Gertner, Jon

2012-01-01

.... And at its heart this is a story about a small group of brilliant and eccentric men including Mervin Kelly, Bill Shockley, Claude Shannon, John Pierce, and Bill Baker who spent their careers at Bell Labs...

Investigating a spatial approach to groundwater quantity ...

African Journals Online (AJOL)

Received 28 April 2014; accepted in revised form 17 December 2014. Investigating a spatial approach to ... Pierce et al., 2013; Rudestam and Langridge, 2014). A thorough history of the evolution of these ...... UNESCO,. Paris. WESTER P ...

Children's (Pediatric) Magnetic Resonance Imaging

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings ... tomography (CT) scans, MRI does not utilize ionizing radiation. Instead, radiofrequency pulses re-align hydrogen atoms that ...

MRI of the Chest

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings ... tomography (CT) scans, MRI does not utilize ionizing radiation. Instead, radiofrequency pulses re-align hydrogen atoms that ...

Magnetic Resonance Imaging (MRI) -- Head

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings ... tomography (CT) scans, MRI does not utilize ionizing radiation. Instead, radiofrequency pulses re-align hydrogen atoms that ...

Arthrography

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings ... may also be asked to remove jewelry, removable dental appliances, eye glasses and any metal objects or ...

MRI of the Chest

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings ... and send a signed report to your primary care or referring physician, who will share the results ...

Magnetic Resonance Imaging (MRI) -- Head

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings ... and send a signed report to your primary care or referring physician, who will share the results ...

Children's (Pediatric) Magnetic Resonance Imaging

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings ... and send a signed report to your primary care or referring physician, who will share the results ...

Children's (Pediatric) Magnetic Resonance Imaging

Medline Plus

Full Text Available ... images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam ... and treatments have special pediatric considerations. The teddy bear denotes child-specific content. Related Articles and Media ...

Arthrography

Medline Plus

Full Text Available ... images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam ... and treatments have special pediatric considerations. The teddy bear denotes child-specific content. Related Articles and Media ...

Magnetic Resonance Imaging (MRI) -- Head

Medline Plus

Full Text Available ... images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam ... and treatments have special pediatric considerations. The teddy bear denotes child-specific content. Related Articles and Media ...

First record of the behavior of latex drainage by Trigona spinipes (Fabricius (Hymenoptera, Apidae in laticiferous flowers

Directory of Open Access Journals (Sweden)

Cristiana Koschnitzke

2011-09-01

Full Text Available This paper describes the behavior of the bee Trigona spinipes, to avoid the latex, when piercing the base of the tubular corolla of the flowers of Mandevilla guanabarica in order to steal the nectar.

The Flemish Primitives

NARCIS (Netherlands)

Vos, De Dirk

2003-01-01

Intensely realistic, piercingly beautiful, the art of the Flemish Primitives inspires powerful emotional responses. Painted during the fifteenth century in the southern Netherlands, these influential and enduring works helped establish the foundations of modern European painting.Sumptuously

76 FR 25762 - Qualification of Drivers; Exemption Applications; Vision

Science.gov (United States)

2011-05-05

.... Berglund, Sr. Eric E. Myers Robert A. Casson Kenneth L. Nau Charles C. Chapman David W. Peterson Jeffery W. Cotner Randel G. Pierce Everett A. Doty Timmy J. Pottenbaum John K. Fank Manuel H. Sanchez Bobby G...

Children's (Pediatric) Magnetic Resonance Imaging

Medline Plus

Full Text Available ... be sedated or anesthetized. If this is the case, or if you suspect your child may be ... pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with ...

MRI of the Chest

Medline Plus

Full Text Available ... pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with ... exam and bring it to your exam in case the radiologist or technologist has any questions. Some ...

Predicting the viscosity of digesta from the physical characteristics of particle suspensions using existing rheological models.

Science.gov (United States)

Hardacre, Allan K; Lentle, Roger G; Yap, Sia-Yen; Monro, John A

2018-05-01

The measurement of the viscosity of digesta is complicated by settling and compositional changes that accompany digestion. The current work determined whether the apparent and relative viscosities ( η a and η r ) of digesta could be accurately determined from the actual and maximum solid volume fractions ( ϕ and ϕ max , respectively) using the Maron-Pierce equation. The rheological properties of digesta from the small intestine of six pigs were determined at a shear rate of 1 s -1 at 37°C. A series of suspensions of plant fibre in a Newtonian liquid (70% aqueous fructose) were made at viscosities similar to pig digesta by adjusting ϕ The relationships between the apparent and relative viscosities ( η a and η r ) and the plant fibre properties; aspect ratio (AR) and ϕ and ϕ max were then determined for digesta and the suspensions. The ARs for the digesta and plant fibre particles were determined using image analysis of scanning electron micrographs and η a from rheometric flow curves at 37°C, ϕ from image analysis and gas pycnometry, and ϕ max from AR and suspension viscosity. The η r of pig digesta and the test suspensions calculated using the Maron-Pierce equation were, with the exception of two outliers, in proportion with η a determined using a rheometer, indicating that η r could be successfully predicted from the Maron-Pierce equation. © 2018 The Author(s).

Annals of Biomedical Sciences

African Journals Online (AJOL)

Awareness of health risks associated with body piercing and tattooing among tertiary students in Auchi, Edo state, Nigeria · EMAIL FULL TEXT EMAIL FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. T.A. Ehwarieme, F.O. Amieghemie ...

Profile chemical, physical and optical data collected aboard the SEWARD JOHNSON in the Caribbean Sea and North Atlantic Ocean from June 22, 2006 to July 24, 2006 (NODC Accession 0059071)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains hydrographic data collected during cruise SJ0609 in the tropical North Atlantic. Leg 1 of the cruise began in Ft. Pierce FL with a rapid...

MRI of the Chest

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. ...

Magnetic Resonance Imaging (MRI) -- Head

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. ...

Children's (Pediatric) Magnetic Resonance Imaging

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. ...

Arthrography

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Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. ...

Magnetic Resonance Imaging (MRI) -- Head

Medline Plus

Full Text Available ... told otherwise, take your regular medications as usual. Leave jewelry at home and wear loose, comfortable clothing. ... contrast material except when absolutely necessary for medical treatment. See ... work pens, pocket knives and eyeglasses body piercings ...

MRI of the Chest

Medline Plus

Full Text Available ... told otherwise, take your regular medications as usual. Leave jewelry at home and wear loose, comfortable clothing. ... contrast material except when absolutely necessary for medical treatment. See the MRI ... pocket knives and eyeglasses body piercings ...

Rebels with a cause : Group identification as a response to perceived discrimination from the mainstream

NARCIS (Netherlands)

Jetten, Jolanda; Branscombe, NR; Schmitt, MT; Spears, R

Two studies involving people with body piercings tested the hypothesis that perceived discrimination increases group identification. In Study 1, group identification mediated the positive relationship between perceived discrimination and attempts to differentiate the ingroup from the mainstream. In

Oceanographic Data collected during the Florida Shelf Edge Expedition (FLoSEE) (CIOERT2010) on RV Seward Johnson in the Gulf of Mexico and North Atlantic Ocean between July 9, 2010 - August 9, 2010 (NODC Accession 0074541)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — A science team on the research vessel Seward Johnson left from Fort Pierce, Fla. in early July to go to the eastern Gulf of Mexico. The researchers used a...

Guest Editorial

Indian Academy of Sciences (India)

For example, on the basis of observed spectra one can perform ... can give us information about the kinematical properties of emission gas. Condi- .... and plasmas in technology, such as laser welding and piercing of metals and light sources ...

Arthrography

Medline Plus

Full Text Available ... re taking, and allergies – especially to contrast materials. Leave jewelry at home and wear loose, comfortable clothing. ... and help to determine the possible need for treatment, including arthroscopy, ... work pens, pocket knives and eyeglasses body piercings ...

Arthrography

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. People with the ...

MRI of the Chest

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. People with the ...

Magnetic Resonance Imaging (MRI) -- Head

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. People with the ...

Children's (Pediatric) Magnetic Resonance Imaging

Medline Plus

Full Text Available ... metallic items, which can distort MRI images removable dental work pens, pocket knives and eyeglasses body piercings In most cases, an MRI exam is safe for patients with metal implants, except for a few types. People with the ...

History, principles, and summary of applications of electropenetrography (EPG)

Science.gov (United States)

Studying feeding, plant damage, and transmission (i.e. acquisition, retention, and inoculation) of plant pathogens by hemipteran insect pests is challenging. Hemipteran piercing-sucking mouthparts, the stylets, are probed into opaque plant tissues precluding direct observation. This challenge was ov...

Plaadid / Paavo Käämbre

Index Scriptorium Estoniae

Käämbre, Paavo, 1984-

2005-01-01

Uutest heliplaatidest Cassidy "I'm a Hustla", Tony Iommi and Glenn Hughes "Fused", Peer Günt "No Piercing, No Tattoo", Julio Iglesias "L'Homme Que Je Suis", Raveonettes "Pretty In Black", Roisin Murphy "Ruby Blue", James Blunt "Back To Bedlam"

High-throughput phenotyping of plant resistance to aphids by automated video tracking

NARCIS (Netherlands)

Kloth, K.J.; Broeke, ten C.J.M.; Thoen, H.P.M.; Hanhart-van den Brink, M.; Wiegers, G.L.; Krips, O.E.; Noldus, L.P.J.J.; Dicke, M.; Jongsma, M.A.

2015-01-01

Background: Piercing-sucking insects are major vectors of plant viruses causing significant yield losses in crops.Functional genomics of plant resistance to these insects would greatly benefit from the availability of highthroughput, quantitative phenotyping methods. Results: We have developed an

78 FR 55067 - Proposed Collection; Comment Request

Science.gov (United States)

2013-09-09

... technology. DATES: Consideration will be given to all comments received by November 8, 2013. ADDRESSES: You... Technologies Section, ATTN: Charles Pierce/Le'Ron Lawrence, 3000 Marine Corps Pentagon Rm 4A324, Washington, DC... biometric databases and associated [[Page 55068

Computational Dimensionalities of Global Supercomputing

Directory of Open Access Journals (Sweden)

Richard S. Segall

2013-12-01

Full Text Available This Invited Paper pertains to subject of my Plenary Keynote Speech at the 17th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI 2013 held in Orlando, Florida on July 9-12, 2013. The title of my Plenary Keynote Speech was: "Dimensionalities of Computation: from Global Supercomputing to Data, Text and Web Mining" but this Invited Paper will focus only on the "Computational Dimensionalities of Global Supercomputing" and is based upon a summary of the contents of several individual articles that have been previously written with myself as lead author and published in [75], [76], [77], [78], [79], [80] and [11]. The topics of these of the Plenary Speech included Overview of Current Research in Global Supercomputing [75], Open-Source Software Tools for Data Mining Analysis of Genomic and Spatial Images using High Performance Computing [76], Data Mining Supercomputing with SAS™ JMP® Genomics ([77], [79], [80], and Visualization by Supercomputing Data Mining [81]. ______________________ [11.] Committee on the Future of Supercomputing, National Research Council (2003, The Future of Supercomputing: An Interim Report, ISBN-13: 978-0-309-09016- 2, http://www.nap.edu/catalog/10784.html [75.] Segall, Richard S.; Zhang, Qingyu and Cook, Jeffrey S.(2013, "Overview of Current Research in Global Supercomputing", Proceedings of Forty- Fourth Meeting of Southwest Decision Sciences Institute (SWDSI, Albuquerque, NM, March 12-16, 2013. [76.] Segall, Richard S. and Zhang, Qingyu (2010, "Open-Source Software Tools for Data Mining Analysis of Genomic and Spatial Images using High Performance Computing", Proceedings of 5th INFORMS Workshop on Data Mining and Health Informatics, Austin, TX, November 6, 2010. [77.] Segall, Richard S., Zhang, Qingyu and Pierce, Ryan M.(2010, "Data Mining Supercomputing with SAS™ JMP®; Genomics: Research-in-Progress, Proceedings of 2010 Conference on Applied Research in Information Technology, sponsored by

New piercing for insulated cables in underground networks; Novos conectores compactos perfurantes ('piercings') para cabos isoldados em redes subterraneas

Energy Technology Data Exchange (ETDEWEB)

Moreno, Fernando; Corral, Horacio [Tradis, SP (Brazil). E-mail: tradis@mandic.com.br

1999-07-01

This work presents a tap and transition connection in low voltage protected underground cables. This connection allows tapping for clients or branchings from a main energized cables. The compact connectors range various types of insulated cables protected and under grounded in a simple way. The work analysed the advantages of using two components polyurethane resins for the tapping protection and insulation restoring.

The Seed Semipermeable Layer and Its Relation to Seed Quality Assessment in Four Grass Species

Directory of Open Access Journals (Sweden)

Yan Y. Lv

2017-07-01

Full Text Available The existence of a semipermeable layer in grass seeds has been extensively reported, yet knowledge of its influence on tests for seed viability and vigor that depend upon measurement of electrical conductivity (EC is limited. This study determined the presence and location of the semipermeable layer, and its relation to seed viability and vigor assessment, in seeds of four important grass species-Elymus nutans Griseb., Lolium perenne L., Leymus chinensis (Trin. Tzvel., and Avena sativa L. Intact seeds of E. nutans, Lolium perenne, and Leymus chinensis exhibited little staining with triphenyl tetrazolium chloride (TTC, and there were no differences in EC between seeds with different germination percentage (GP (P > 0.05. After piercing the seed coat, however, all three species displayed positive staining with TTC, along with a significant negative correlation between EC and GP (E. nutans: R2 = 0.7708; Lolium perenne: R2= 0.8414; Leymus chinensis: R2 = 0.859; P < 0.01. In contrast, both intact and pierced seeds of A. sativa possessed a permeable seed coat that showed positive staining with TTC and EC values that were significantly negatively correlated with GP [R2 = 0.9071 (intact and 0.9597 (pierced; P < 0.01]. In commercial seed lots of A. sativa, a field emergence test indicated that EC showed a significant negative correlation with field emergence at two sowing dates (R2= 0.6069, P < 0.01 and 0.5316, P < 0.05. Analysis of seed coat permeability revealed the presence of a semipermeable layer located in the seed coat adjacent to the endosperm in E. nutans, Lolium perenne, and Leymus chinensis; however, no semipermeable layer was observed in A. sativa. This is the first report of the absence of a semipermeable layer in a grass species. The existence of a semipermeable layer is one of the most important factors affecting seed viability and vigor testing (based on EC measurement in E. nutans, Lolium perenne, and Leymus chinensis. Increasing the

New technologies in electrical penetration graph (EPG) monitors of insect feeding and their applications for 21st century entomology

Science.gov (United States)

Electrical penetration graph (EPG) monitoring of insect feeding is a rigorous means of observing and quantifying feeding behaviors of piercing-sucking arthropods, as well as fine details of chewing and oviposition behaviors not observable visually. While EPG was originally invented nearly 50 years ...

Risk Factors and Clinical Correlates of Hepatitits B Seroprevalence ...

African Journals Online (AJOL)

Circumcision, scarification, ear piercing, history of blood transfusion, receipt of unsafe injections, present/ past history of jaundice and malnutrition were not significantly associated with being seropositive (p>0.05). Conclusion: This study did not identify any pathognomonic clinical feature of hepatitis b seroprevalence.

Nigerian Quarterly Journal of Hospital Medicine - Vol 20, No 2 (2010)

African Journals Online (AJOL)

Earlobe keloids: Emerging cosmetic complacation of ear-piercing · EMAIL FULL TEXT EMAIL FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. I.A Adigun, A.B Aderibigbe, 97-100. http://dx.doi.org/10.4314/nqjhm.v20i2.58046 ...

Numerical modelling of structures of dolosse and their interaction with waves

CSIR Research Space (South Africa)

Greben, JM

2008-11-01

Full Text Available different types of armour units. Other types include Tetrapods, core-loc, accropodes, ecopodes, A- jack, Akmon and pierced pyramids. Figure 10: A synthesised layout of dolosse packed round an inner curve. A key issue now is to simulate the process...

On Teenagers and Tattoos.

Science.gov (United States)

Martin, Andres

2000-01-01

Tattooing and piercing have an almost magnetic appeal to many teens. While seen as adornment by adolescents, they can become a battleground with adults. In this article a psychiatrist examines the motivation and functions of body sculpting by contemporary adolescents. (Author/MKA)

Characterization and Fate of Gun and Rocket Propellant Residues on Testing and Training Ranges: Interim Report 2

Science.gov (United States)

2010-12-01

Restoration Project 1481, Phase II. DISCLAIMER: The contents of this report are not to be used for advertising , publication, or promotional purposes...acetonitrile APFSDS armour -piercing fin-stabilized discarding sabot °C degrees Celsius CFB Canadian Forces Base CRREL Cold Regions Research Engineering

Propagation of Homalodisca Coagulata Virus-01 via Homalodisca Vitripennis cell culture

Science.gov (United States)

The glassy-winged sharpshooter (Homalodisca vitripennis) is a highly vagile and polyphagous insect found throughout the southwestern United States. These insects are the predominant vectors of Xylella fastidiosa, a xylem-limited bacterium that is the causal agent of Pierce's disease (PD) of grapevin...

Intermittent Fermi-Pasta-Ulam Dynamics at Equilibrium

Science.gov (United States)

Campbell, David; Danieli, Carlo; Flach, Sergej

The equilibrium value of an observable defines a manifold in the phase space of an ergodic and equipartitioned many-body syste. A typical trajectory pierces that manifold infinitely often as time goes to infinity. We use these piercings to measure both the relaxation time of the lowest frequency eigenmode of the Fermi-Pasta-Ulam chain, as well as the fluctuations of the subsequent dynamics in equilibrium. We show that previously obtained scaling laws for equipartition times are modified at low energy density due to an unexpected slowing down of the relaxation. The dynamics in equilibrium is characterized by a power-law distribution of excursion times far off equilibrium, with diverging variance. The long excursions arise from sticky dynamics close to regular orbits in the phase space. Our method is generalizable to large classes of many-body systems. The authors acknowledge financial support from IBS (Project Code IBS-R024-D1).

Giant amplification in degenerate band edge slow-wave structures interacting with an electron beam

Energy Technology Data Exchange (ETDEWEB)

Othman, Mohamed A. K.; Veysi, Mehdi; Capolino, Filippo [Department of Electrical Engineering and Computer Science, University of California, Irvine, California 92697 (United States); Figotin, Alexander [Department of Mathematics, University of California, Irvine, California 92697 (United States)

2016-03-15

We propose a new amplification regime based on a synchronous operation of four degenerate electromagnetic (EM) modes in a slow-wave structure and the electron beam, referred to as super synchronization. These four EM modes arise in a Fabry-Pérot cavity when degenerate band edge (DBE) condition is satisfied. The modes interact constructively with the electron beam resulting in superior amplification. In particular, much larger gains are achieved for smaller beam currents compared to conventional structures based on synchronization with only a single EM mode. We demonstrate giant gain scaling with respect to the length of the slow-wave structure compared to conventional Pierce type single mode traveling wave tube amplifiers. We construct a coupled transmission line model for a loaded waveguide slow-wave structure exhibiting a DBE, and investigate the phenomenon of giant gain via super synchronization using the Pierce model generalized to multimode interaction.

Computer simulation of bounded plasmas

International Nuclear Information System (INIS)

Lawson, W.S.

1987-01-01

The problems of simulating a one-dimensional bounded plasma system using particles in a gridded space are systematically explored and solutions to them are given. Such problems include the injection of particles at the boundaries, the solution of Poisson's equation, and the inclusion of an external circuit between the confining boundaries. A recently discovered artificial cooling effect is explained as being a side-effect of quiet injection, and its potential for causing serious but subtle errors in bounded simulation is noted. The methods described in the first part of the thesis are then applied to the simulation of an extension of the Pierce diode problem, specifically a Pierce diode modified by an external circuit between the electrodes. The results of these simulations agree to high accuracy with theory when a theory exists, and also show some interesting chaotic behavior in certain parameter regimes. The chaotic behavior is described in detail

Hepatitis B and Hepatitis C virus in women with first pregnancy

International Nuclear Information System (INIS)

Jadoon, S.M.; Adeel, M.

2017-01-01

Hepatitis B and Hepatitis C are amongst the leading causes of morbidity and mortality in pregnant women throughout the globe. This study is aimed at determining the frequency of these infections among primigravid females and the common factors that make them prone to these infections. Methods: This cross-sectional study was conducted at Ayub Teaching Hospital, Abbottabad from December 2015 to May 2016. A total of 174 jaundiced primigravida patients were included in the study through non-probability consecutive sampling. Blood samples were sent for HBsAg and anti-HCV ELISA. Samples were analysed by the pathologist with more than 5 years clinical experience. All data will be analysed using SPSS-16. Results: The mean age of the subjects was 24±5.7 years. Six (3.4%) patients were HBsAg positive and 13 (7.5%) were anti-HCV positive. About 9% of patients had undergone surgery in their life and 1.7% reported having received blood transfusion during their life. Thirty-two of them had history of intravenous or intramuscular injections. History of piercing of body part mostly ear-piercing for ornaments was present in 170 (97.7%) respondents. However, the frequency of blood transfusion, surgery and body piercing was not statistically significantly between HBsAg positive, HBsAg negative, and anti-HCV positive and negative patients (p>0.05). Conclusion: The incidence of these viral infections in our community is on the rise. It emphasizes the need of routine antenatal screening in pregnant ladies for these viruses and to educate the public about preventive measures against these infections. (author)

Uleanya et al., Afr. J. Infect. Dis.

African Journals Online (AJOL)

acer

previous history and frequency of blood transfusion, histories and instruments of scarification, tattooing, ear piercing, circumcision, use of contaminated needles and syringes for injection (either used or reused needle or syringe considered as contaminated), intravenous drug use, histories of sex (where necessary), and ...

Seroprevalence of HBsAg and its risk factors among pregnant ...

African Journals Online (AJOL)

Yemane Berhane

The questionnaire included level of education, occupation, income, ethnicity, and history of dental and surgical procedure, tattooing, exposures to unsafe injection, history of caesarian section, abortion, liver disease, blood transfusion and ear piercing in jewelers shop. II. Serological detection of Hepatitis B surface antigen.

Glass transition temperatures of liquid prepolymers obtained by thermal penetrometry

Science.gov (United States)

Potts, J. E., Jr.; Ashcraft, A. C.

1973-01-01

Thermal penetrometry is experimental technique for detecting temperature at which frozen prepolymer becomes soft enough to be pierced by weighted penetrometer needle; temperature at which this occurs is called penetration temperature. Apparatus used to obtain penetration temperatures can be set up largely from standard parts.

77 FR 50767 - Endangered and Threatened Wildlife and Plants; Endangered Status for Four Central Texas...

Science.gov (United States)

2012-08-22

... Water Tank Cave) (Pierce 2011c, pers. comm.; Gluesenkamp 2011a, TPWD, pers. comm.). Recent mark... ecology of Georgetown salamanders that occupy the cave sites (Cobbs Cavern, Bat Well, and Water Tank Cave... systems, including increased flow velocities, increased sedimentation, increased contamination, changes in...

How Do You Motivate Long-Term Behavior Change to Prevent Cancer?

Science.gov (United States)

John P. Pierce PhD, a professor in the Department of Family and Preventive Medicine at the University of California, San Diego and Director of Population Science at Moores Cancer Center, presented "How Do You Motivate Long-Term Behavior Change to Prevent Cancer?" 

Child-Centered Group Play Therapy with African American Boys at the Elementary School Level

Science.gov (United States)

Baggerly, Jennifer; Parker, Max

2005-01-01

African American boys face numerous challenges in society within the United States, including prejudice, discrimination, racism, economic hardship, limited access to support services, educational biases, and community violence. According to Pierce (1988), the psychic assault of subtle racism against African American boys erode their…

75 FR 14227 - Self-Regulatory Organizations; The NASDAQ Stock Market LLC; Order Approving Proposed Rule Change...

Science.gov (United States)

2010-03-24

... Commission has considered the proposed rule's impact on efficiency, competition, and capital formation. See... its rules governing NOM, the Securities Industry and Financial Markets Association (``SIFMA... security.''). See also Newton v. Merrill, Lynch, Pierce, Fenner & Smith, Inc., 135 F.3d 266, at 271, 274...

Knowledge Of AIDS Among Rural Adolescents in Kwara State of ...

African Journals Online (AJOL)

32% and 29% favour provision of Health Education and use of disposable skin piercing instruments respectively as ways of controlling AIDS. The study therefore recommended public enlightenment and counselling for the containment of AIDS in rural areas. Nigerian Quarterly Journal of Hospital Medicine Vol. 9, No.

Cultural Influences on Hepatitis B Surface Antigen Seropositivity in ...

African Journals Online (AJOL)

Objective: To determine the role of cultural influences, namely: circumcision, ear piercing and traditional scarification, on HbsAg seropositivity among primary school children in Nnewi. Subjects and Method: Two hundred and thirty seven randomly selected primary school children aged 5-12 years, were screened for HbsAg.

Coeliac Plexus Neurolysis for Upper Abdominal Malignancies Using ...

African Journals Online (AJOL)

Conclusion: The use of various imaging modalities in an anterior approach has improved the technical accuracy in reaching the coeliac plexus, thereby avoiding the needle piercing crucial structures and avoiding deposition of drug in the retrocrural space, thereby reducing the risk of neurological complications. Coeliac ...

77 FR 49857 - Early Scoping Notification for the Alternatives Analysis of the Tacoma Link Expansion in Tacoma, WA

Science.gov (United States)

2012-08-17

... and Regional Express bus service, as well as Pierce Transit and Intercity Transit), the University of... reduce the number of vehicle miles traveled as commute trips. The need to serve increasing commute trips... typically include disciplines such as travel forecasting, capital and operations and maintenance costs, and...

A capillary electrophoretic method for isolation and characterization ...

African Journals Online (AJOL)

European (Vitis vinifera) and American (Vitis labrusca) grape species succumb to a bacterial disease known as Pierce's Disease (PD). In contrast, muscadine grape genotypes (Vitis rotundifolia) are tolerant/resistant to PD. This is due to the unique biochemical composition of muscadine xylem. However, because of low ...

New and smart materials - why and how

DEFF Research Database (Denmark)

. The semiotic properties are becoming more and more important since consumers more increasingly select between products based on the meaning they associate to the product appearance. Semiotics is the study of signs and symbols and described by authors like Pierce and Saussure. Customer preferences also keep...

Assembled microneedle arrays enhance the transport of compounds varying over a large range of molecular weight across human dermatomed skin

NARCIS (Netherlands)

Verbaan, F.J.; Bal, S.M.; van den Berg, D.J.; Groenink, W.H.H.; Verpoorten, H.; Lüttge, Regina; Bouwstra, J.A.

2007-01-01

In this study, we demonstrate the feasibility to use microneedle arrays manufactured from commercially available 30G hypodermal needles to enhance the transport of compounds up to a molecular weight of 72 kDa. Piercing of human dermatomed skin with microneedle arrays was studied by Trypan Blue

Report: National Conference on Cooperative Education.

Science.gov (United States)

Bureau of Occupational and Adult Education (DHEW/OE), Washington, DC. Div. of Vocational and Technical Education.

The conference report on cooperative vocational education contains four main sections. The first, background papers, contains three papers: Education in a Changing Society, Carl H. Madden; A Prospectus for Cooperative Vocational Education, William F. Pierce; and Critical Issues in Cooperative Vocational Education, Robert M. Worthington. The second…

Health complaints of high school students in the Northern Province ...

African Journals Online (AJOL)

The highest reported taboo theme was homosexuality, followed by tattooing or piercing, and abortion. There is a significant positive correlation between health complaints of the students and taboo themes in their families. The findings call for intensified efforts on enlightenment (life skills) programmes designed to ...

Variable Temperature Scanning Tunneling Microscopy

Science.gov (United States)

1991-07-01

Tomazin, both Electrical Engineering. Build a digital integrator for the STM feedback loop: Kyle Drewry, Electrical Engineering. Write an AutoLisp ...program to automate the AutoCad design of UHV-STM chambers: Alfred Pierce (minority), Mechanical Engineering. Design a 32-bit interface board for the EISA

Getting Inked: Tattoos and College Students

Science.gov (United States)

Manuel, Laura; Sheehan, Eugene P.

2007-01-01

This study explores whether college students with tattoos or piercings demonstrate extreme personalities and behaviors. Participants were 46 men and 164 women (mean=20.0 years). Questions assessed participants' attitudes toward tattooing, presence of a tattoo, and participation in risk taking behaviors. Participants completed the Personality…

Elliott on Mind Matters.

Science.gov (United States)

Maattanen, Pentti

2000-01-01

Argues that David Elliott's conception of the human mind presented in his book "Music Matters" is not coherent. Outlines three alternatives to Elliott's theory of mind. Suggests that the principles associated with the pragmatism of Charles Sanders Pierce would complement Elliott's ideas in his book. (CMK)