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Sample records for pubic lice pediculosis

  1. Pubic "Crab" Lice Prevention and Control

    Science.gov (United States)

    ... and General Public. Contact Us Parasites Home Prevention & Control Recommend on Facebook Tweet Share Compartir Pubic ("crab") ... that can be taken to help prevent and control the spread of pubic ("crab") lice: All sexual ...

  2. Pediculosis pubis

    Directory of Open Access Journals (Sweden)

    Chang Patricia

    2011-07-01

    Full Text Available We report a male patient of 24 years old with itching at groin and pubis. Pubic hair test showed the presence of lices (fig.2-4.Pediculosis is an infestation of man and animals by insects Anoplura (Lice Vampire ectoparasites. It´s important poor hygiene, promiscuity, fomites, sexual transmission. Etiology: Pediculus humanus capitis, Human Pediculus corporis, Phthirus pubis or pubic lice. Clinically pediculosis can be classify in :head lice, body lice, pubic pediculosis. Phthirus pubis or crab lice is the agent of pediculus pubis, the sites affected are pubic region other sites as thighs, trunk, armpit, eyebrows, eyelashes, beard and scalp. Pruritus hematic crusts, excoriations, stains 0.5 cm -1 blue cerulean spots may be associated with other STD. The diagnosis is based in the clinical aspect and observes the parasite. Phthirus short pubis or pubic lice parasite, it´s size: 0.8-1.2 mm his first legs resemble those of a crab with sucking, slow walking 10 cm / min. Treatment is based on head lice or nits destruction benzyl benzoate 25% 8 to 12 hrs once, crotramiton 10% 1 / day x 8 days and ivermectin 200 micrograms / kg in a single dose.

  3. Head Lice Infestation (Pediculosis and Associated Factors among Primary School Girls in Sirik County, Southern Iran

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    Alireza Sanei-Dehkordi

    2017-12-01

    Full Text Available Background Head lice infestation (pediculosis is a serious health problem that can cause a high level of anxiety and psychological frustration, especially in developing countries.Socio-demographic factors are important determinants of the occurrence of head lice infestation. This study aimed to determine the head lice infestations and the factors affecting the rate of infestationin primary school girls.   Materials and Methods In this cross-sectional study, a total of 358 school girls from two urban and three rural primary school girls in Sirik County, Southern Iran, were randomly selected. For the diagnosis of head lice infestation, students were examined carefully by visual inspection of the scalp and hair for the presence of lice. Self-administered questionnaire was used to collect data on socio-demographic and associated factors of head lice infestation. SPSS version 21.0 was used to analyze the data. Results The prevalence of head lice infestation among primary school girls was 56.15%. There were significant associations between head lice infestation and age (p

  4. Management and Treatment of Human Lice

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    Abdoul Karim Sangaré

    2016-01-01

    Full Text Available Of the three lice (head, body, and pubic louse that infest humans, the body louse is the species involved in epidemics of louse-borne typhus, trench fever, and relapsing fever, but all the three cause pediculosis. Their infestations occur today in many countries despite great efforts to maintain high standards of public health. In this review, literature searches were performed through PubMed, Medline, Google Scholar, and EBSCOhost, with key search words of “Pediculus humanus”, “lice infestation”, “pediculosis”, and “treatment”; and controlled clinical trials were viewed with great interest. Removing lice by hand or with a lice comb, heating infested clothing, and shaving the scalp were some of the oldest methods of controlling human lice. Despite the introduction of other resources including cresol, naphthalene, sulfur, mercury, vinegar, petroleum, and insecticides, the numbers of lice infestation cases and resistance have increased. To date, viable alternative treatments to replace insecticides have been developed experimentally in vitro. Today, the development of new treatment strategies such as symbiotic treatment and synergistic treatment (antibiotics + ivermectin in vitro has proved effective and is promising. Here, we present an overview on managing and treating human lice and highlight new strategies to more effectively fight pediculosis and prevent resistance.

  5. Head lice infestation (Pediculosis and its associated factors in the rural school students of Kalaleh, in the academic year 1392-93

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    Abed Noori

    2014-04-01

    Conclusion: Pediculosis is still a public health problem in communities with poor life and health facilities. High prevalence of this issue among school students may be linked to factors such as lack of health educators in school and lack of adequate attention to personal hygiene.

  6. Pediculosis capitis: An update

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    Bhushan Madke

    2012-01-01

    Full Text Available Head louse infestation, or pediculosis capitis, caused by Pediculus humanus var. capitis, is a common health concern in pediatric age group. An itching of the scalp is the chief symptom, whereas presence of viable nits confirms the diagnosis of head louse infestation. Secondary bacterial infection with impetignization with cervical and occipital lymphadenopathy can complicate the clinical scenario with physician misdiagnosing pediculosis to a primary bacterial infection. Screening and treatment of all close contacts is necessary for an adequate management of pediculosis. Medical management of head louse infestation requires proper application of topical pediculicidal agents′, chiefly permethrin lotion and wet combing with a fine toothcomb. Severe cases with high parasitic load justify the use of either oral cotrimoxazole or Ivermectin. Other described technique involves a single application of hot air for 30 minutes. Radical but culturally unacceptable method would be shaving of scalp in resistant cases. Environmental fogging with insecticides is neither necessary nor recommended.

  7. Pubic apophysitis

    DEFF Research Database (Denmark)

    Sailly, Matthieu; Whiteley, Rod; Read, John W

    2015-01-01

    football players (15.6 years ± 1.3) who complained of adductor-related groin pain were reviewed. The imaging features (X-ray 26/26, US 9/26, MRI 11/26, CT 7/26) of the pubic apophyses in this symptomatic group were compared against those of a comparison group of 31 male patients (age range 9-30 years......) with no known history of groin pain or pelvic trauma, who underwent pelvic CT scans for unrelated medical reasons. RESULTS: All symptomatic subjects presented with similar history and physical findings. The CT scans of these patients demonstrated open pubic apophyses with stress-related physeal changes...

  8. Body Lice

    Science.gov (United States)

    What are body lice? Body lice (also called clothes lice) are tiny insects which live and lay nits (lice eggs) on clothing. They are parasites, ... usually only move to the skin to feed. Body lice are one of the three types of ...

  9. Prevalence and risk factors associated with pediculosis capitis in an impoverished urban community in Lima, Peru

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    Hannah Lesshafft

    2013-01-01

    Full Text Available Background: Pediculosis capitis is a ubiquitous parasitic skin disease associated with intense pruritus of the scalp. In developing countries it frequently affects children and adults, but epidemiological data at the community level are rare. Objectives: To assess prevalence and risk factors associated with pediculosis capitis in a resource-poor community in Lima, Peru. Materials and Methods: In total, 736 persons living in 199 households in a circumscribed neighbourhood were examined for head lice and nits by visual inspection. At the same time, socio-demographic data were collected using a structured questionnaire. Variables associated with pediculosis were identified by performing a bivariate analysis, followed by a multivariate logistic regression analysis. Results: Prevalence of pediculosis capitis was 9.1% (95% confidence interval (CI: 7.0-11.2 % in the general population and 19.9% (CI: 15.4-24.4% in children ≤15 years of age. Multivariate analysis showed that pediculosis capitis was significantly associated with age ≤ 15 years (OR: 16.85; CI:7.42-38.24, female sex (OR: 2.84; CI: 1.58-5.12, household size of >4 persons (OR: 1.98; CI: 1.11-3.55, low quality of house construction material (OR:2.22; CI: 1.20-4.12, and presence of animals in the household (OR: 1.94; CI: 1.11-3.39. Conclusion: Pediculosis capitis was a very common disease in the studied community in Lima, Peru. Our logistic regression analysis affirms that young age is the most important risk factor for pediculosis capitis. Moreover, female sex, large household size, living in wooden houses and the presence of animals were identified as being significantly associated with head lice infestation.

  10. Head Lice

    Science.gov (United States)

    ... nits. You should also use hot water to wash any bed linens, towels, and clothing recently worn by the person who had head lice. Vacuum anything that can’t be washed, such as the couch, carpets, your child’s car seat, and any stuffed animals. Because head lice ...

  11. The Prevalence of Pediculosis Capitis and Factors Related to The Treatment Success in Primary School Children and Their Family Members in Kocaeli

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    Aysun Sikar Akturk

    2012-04-01

    Full Text Available Objective: The aim of the presented study was determine the prevalence of Pediculosis capitis and factors related to the treatment success in a public primary school situated in an area having a low socio-economic status in the city of Kocaeli. Materials and Methods: A total of 414 students attending at the first grade of a public primary school in Kocaeli and 267 family members of the students with head lice and/or nits were screened. Students and their family members were examined by visual inspection and dermoscopic examination whether they had head lice and/or nits. The data were collected about some socio demographic characteristics of children’ and those of their family members with active Pediculosis capitis and shampoos with 1% permethrin was used to get rid of Pediculosis capitis. After two weeks, people who had received treatment were re-examined and factors related to the successful treatment were evaluated. Results: The prevalence of pediculosis capitis was 14.3% in school children and 13% in their family members. The prevalence was statistically significant with education levels of the mothers and fathers, social security of family and by gender. The treatment was successful in 38 of school children (66%, and in 10 of their family members (29% with pediculosis capitis. The success of the treatment was no statistically significant in gender, education level of the mothers and fathers, having social security and income. It was noticed that successful treatment was correlated with proper use of the shampoo and proper mechanical cleaning. Conclusions: Head lice is a public health problem that concerns both the school children and their family members. School children who were infested with Pediculosis capitis and their families should be periodically screened and should be immediately and simultaneously treated to preventing reinfestation. [TAF Prev Med Bull 2012; 11(2.000: 181-190

  12. Lice work

    DEFF Research Database (Denmark)

    Benali, Amira; Ren, Carina Bregnholm

    2018-01-01

    and Nepalese everyday life and show how these are deployed, contested and reconfigured onsite by volunteer tourism actors. By exploring patterns of absences and presences and using the concept of ontological choreography as an analytical resource, we show how the situated lice work of human and non...... at the orphanage. This post-human approach decenters the volunteer and destabilises the host and guest binary, while adding to our understanding of tourism practices as complex and materially distributed endeavours. We first analyse two configurations of head lice enacted through a Western morality of hygiene...

  13. Pediculosis capitis among Primary School Children and Related Risk Factors in Urmia, the Main City of West Azarbaijan, Iran.

    Science.gov (United States)

    Tappeh, K Hazrati; Chavshin, Ar; Hajipirloo, H Mohammadzadeh; Khashaveh, S; Hanifian, H; Bozorgomid, A; Mohammadi, M; Gharabag, D Jabbari; Azizi, H

    2012-01-01

    Pediculosis capitis is cosmopolitan health problem. In addition to its physical problems, its psychological effects especially on pupils are more important. This study was conducted to determine the Pediculosis capitis among primary school pupils and also find out the role of probable related risk factors in Urmia city, Iran 2010. 35 primary schools of Urmia City according to the defined clusters randomly have been selected during 2010. 2040 pupils (866 boys and 1174 girls) were included and examined individually and privately by experts. Presence of adult or immature lice or having nits less than 1 cm from the hair basis were defined as positive. Data about demographic features and factors which their effect should be determined were recorded in standard questionnaire. Data were analyzed by SPSS software with proper statistical test. Infestation was determined around 4%. Girls show significantly greater infestation. The availability of suitable warm water for bathing and hair length (separately in girls and boys) are significantly related to infestation load as well as infestation among different age groups. There was no significant relation between parent's education and job and infestation as well as bathing repetition per week and the kind of energy source which they have. Also there is no significant correlation between educational grades and head lice infestation. The head louse pediculosis is a health problem and remains a health threatening for school children.Effective risk factors should be determined carefully and regionally. Proper training plays a great role in order to prevent and control the problem.

  14. The Prevalence of Pediculosis Capitis and Its Associated Risk Factors in Primary School Students in Kalaleh, Iran in 2015

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    aynaz maleky

    2016-12-01

    This study aimed to determine the prevalence of pediculosis capitis and its related risk factors among the elementary students in Kalaleh, Iran. Methods: This cross-sectional study was performed on the primary students in 2015. For the purpose of the study, 541 students were examined for head lice infestation using a two-stage sampling method. The survey data were collected through direct examination of the skin, hair, and head cover as well as a questionnaire. The data was analyzed using descriptive statistics and Chi-square test by SPSS version 20 software. Results: As the results of this study demonstrated, the prevalence of pediculosis capitis among the elementary school students in Kalaleh was 6.5%. There was a significant relationship between the pediculosis capitis and gender, using of personal belongings, sleeping in the same room, and observing personal hygiene such as washing hands frequently with detergents, changing clothes regularly, and taking a bath at least two times a week. However, no significant relationship was observed between the pediculosis capitis and level of education, place of residence, age, father’s occupation, education level of parents, number of household members, having a bathroom in the house, having a health educator, and type of hair. Conclusion: As the findings of the present study indicated, the head lice infestation is highly prevalent among the primary students in Kalaleh city. Regarding this, it is recommended to train the health educators, teachers, parents, and students in order to prevent this infestation. 

  15. Pediculosis capitis Among Primary School Children and Related Risk Factors in Urmia, the Main City of West Azarbaijan, Iran

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    K Hazrati Tappeh

    2012-06-01

    Full Text Available Background: Pediculosis capitis is cosmopolitan health problem. In addition to its physical problems, its psycho­logical effects especially on pupils are more important. This study was conducted to determine the Pediculosis capitis among primary school pupils and also find out the role of probable related risk factors in Urmia city, Iran 2010.Methods: 35 primary schools of Urmia City according to the defined clusters randomly have been selected during 2010. 2040 pupils (866 boys and 1174 girls were included and examined individually and privately by experts. Presence of adult or immature lice or having nits less than 1 cm from the hair basis were defined as positive.Data about demographic features and factors which their effect should be determined were recorded in standard questionnaire. Data were analyzed by SPSS software with proper statistical test.Results: Infestation was determined around 4%. Girls show significantly greater infestation. The availability of suit­able warm water for bathing and hair length (separately in girls and boys are significantly related to infestation load as well as infestation among different age groups.There was no significant relation between parent’s education and job and infestation as well as bathing repetition per week and the kind of energy source which they have. Also there is no significant correlation between educational grades and head lice infestation.Conclusion: The head louse pediculosis is a health problem and remains a health threatening for school chil­dren.Effective risk factors should be determined carefully and regionally. Proper training plays a great role in order to prevent and control the problem

  16. Body Lice Frequently Asked Questions (FAQs)

    Science.gov (United States)

    ... diagnosed? How are body lice treated? What are body lice? Body lice are parasitic insects that live ... to freshly laundered clothing and bedding. What do body lice look like? Body lice have three forms: ...

  17. Pubic insufficiency fracture: MRI findings

    International Nuclear Information System (INIS)

    Min, Tae Kyu; Lee, Yeon Soo; Park, Jeong Mi; Kim, Jee Young; Chung, Hong Jun; Lee, Eun Hee; Lee, Eun Ja; Kang, So Won; Han Tae Il

    2000-01-01

    To evaluate the characteristic MRI findings of pubic insufficiency fracture. In nine cases of pubic insufficiency fracture, the findings of plain radiography (n=9), MRI (n=9), and bone scintigraphy (n=8) were reviewed. We retrospectively analyzed, with regard to fracture site, the destructive pattern revealed by plain radiography, and uptake by other pelvic bones, as demonstrated by RI bone scanning. The MR findings evaluated were the fracture gap and its signal intensity, the site and signal intensity of the soft tissue mass, and other pelvic bone fractures. Plain radiography revealed osteolysis and sclerosis of pubic bone in eight of nine cases (89%), and parasymphyseal fractures in seven (78%). RI indicated uptake by the sacrum in six cases (66%), and by the ilium in three (33%). MR findings of fracture gap (seven cases, 78%) were hypo to isointensity on T1WI, hyper intensity on T2WI and the absence of contrast enhancement. Soft tissue masses were found in seven cases (78%); in four of these the location was parasymphyseal, and in three, surrounding muscle was involved. Hypo to isointensity was revealed by T1WI, hyperintensity by T2WI, and there was peripheral enhancement. Other associated pelvic bone fractures involved the sacrum in seven cases and the ilium in four. The characteristic MR findings of pubic insufficiency fracture were parasymphyseal location, fracture gap, peripherally enhanced soft tissue mass formation, and fractures of other pelvic bones, namely the sacrum and ilium

  18. White piedra and pediculosis capitis in the same patient.

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    Marques, Silvio Alencar; Richini-Pereira, Virgínia Bodelão; Camargo, Rosângela Maria Pires de

    2012-01-01

    White piedra is a superficial mycosis caused by the genus Trichosporon. It is characterized by nodules on the hair shaft. Pediculosis capitis is caused by Pediculus humanus var. capitis of the suborder Anoplura. Whereas pediculosis is a common infestation, clinical reports of white piedra are rare. Molecular biology procedures identified T. inkin as the agent of white piedra in this case report. The authors present associations between the two diseases in the same patient in order to highlight their clinical differences.

  19. Aspectos clínico-epidemiológicos sobre pediculosis capitis en arenales, Estado Falcón, Venezuela Clinical and epidemiological aspects on pediculosis capitis in, Falcon State, Venezuela

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    D Cazorla PerfettI

    2012-03-01

    ón fueron: jugar en piso de tierra (OR = 2,20; p = 0,012 y lavarse el cabello ≥2 /semana (OR = 1,01; p = 0,002. A la luz de los resultados obtenidos, es recomendable mejorar las condiciones socio-sanitarias del sector y mantener campañas de promoción y educación para la salud.The human pediculosis capitis is a scalp and hair infestation caused by head lice Pediculus humanus capitis, which may result in bacterial secondary infections by intense scratching as well as anemia, anxiety and embarassment which are increased by children' exclusion from school under "no-nit" policy. From March to July 2011, a cross-sectional study was designed to determine the prevalence and clinical and epidemiological profiles of head lice infestation among 199 (79 males and 120 females inhabitants of all age groups (0-75 years; ± D.S= 21.28 ± 17 of a rural and small town Arenales, from the semiarid region of Falcon state, north-western Venezuela.The diagnosis of head lice infestation was made by clinical naked eye inspection of scalp and hair for the presence of adult lice, nymphal stage, or eggs (nit by line-toothed head lice comb. Lice was cleared and mounted in Hoyer’s medium for microscopic observation. All individuals were evaluated by physical examinationand a detailed, structured questionnaire. The overall prevalence of head lice infestation was 10.10% (20/199. The prevalence of infestation was significantly higher in girls (90% than in boys (10% [Odds Ratio (OR = 3.04; p = 0.01] and school-aged children (OR= 1.02;p=0,015; with hair length >3cm (OR = 2,44; p = 0.004 and lissotrichic type (OR = 2.25; p = 0.02, (OR= 2.25; 0.98 - 5.18, however, these were not significantly different among races or hair colours (P > 0.05. 65% of the individuals had only nits with 1 up to 64 per individuals, found between 0.1 and 9 cm from scalp on all anatomical regions of the head, and having school-aged children the higher ectoparasitic loads. Among clinical signs and symptoms, head pruritus (6

  20. Body Lice Prevention and Control

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    ... and General Public. Contact Us Parasites Home Prevention & Control Recommend on Facebook Tweet Share Compartir Body lice ... that can be taken to help prevent and control the spread of body lice: Bathe regularly and ...

  1. Apes, lice and prehistory.

    Science.gov (United States)

    Weiss, Robin A

    2009-01-01

    Although most epidemic human infectious diseases are caused by recently introduced pathogens, cospeciation of parasite and host is commonplace for endemic infections. Occasional host infidelity, however, provides the endemic parasite with an opportunity to survive the potential extinction of its host. Such infidelity may account for the survival of certain types of human lice, and it is currently exemplified by viruses such as HIV.

  2. LSD in pubic hair in a fatality.

    Science.gov (United States)

    Gaulier, Jean-michel; Maublanc, Julie; Lamballais, Florence; Bargel, Sophie; Lachâtre, Gérard

    2012-05-10

    Lysergic acid diethylamide (LSD) is a potent hallucinogen, active at very low dosage and its determination in body fluids in a forensic context may present some difficulties, even more so in hair. A dedicated liquid chromatography-electrospray-tandem mass spectrometry (LC-ES-MS/MS) assay in hair was used to document the case of a 24-year-old man found dead after a party. Briefly, after a decontamination step, a 50mg sample of the victim's pubic hair was cut into small pieces (LSD. A LSD concentration of 0.66pg/mg of pubic hair was observed. However, this result remains difficult to interpret owing to the concomitant LSD presence in the victim's post mortem blood and urine, the lack of previously reported LSD concentrations in hair, and the absence of data about LSD incorporation and stability in pubic hair. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

  3. Head Lice: Prevention and Control

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    ... and General Public. Contact Us Parasites Home Prevention & Control Language: English (US) Español (Spanish) Recommend on Facebook ... that can be taken to help prevent and control the spread of head lice: Avoid head-to- ...

  4. First Detection of the Kdr Mutation T929I in Head Lice (Phthiraptera: Pediculidae) in Schoolchildren of the Metropolitan Area of Nuevo Leon and Yucatan, Mexico.

    Science.gov (United States)

    Ponce-Garcia, Gustavo; Villanueva-Segura, Karina; Trujillo-Rodriguez, Gerardo; Rodriguez-Sanchez, Iram P; Lopez-Monroy, Beatriz; Flores, Adriana E

    2017-07-01

    The head louse Pediculus humanus capitis (De Geer) is a hematophagous ectoparasite that inhabits the human scalp. Infestations by this insect are commonly known as pediculosis, which is more common in younger groups. These infestations are asymptomatic; however, skin irritation from scratching occasionally may cause secondary bacterial infections. In recent years, the prevalence of pediculosis has increased in children; this increase has been attributed to louse resistance to the insecticides used as a control measure for infestation. The aim of the present study was to determine the presence and frequency of the knockdown resistance mutation (kdr) T929I in 468 head lice collected from 32 elementary schools in the metropolitan area of Nuevo Leon (24) and Yucatan (8), Mexico. This is the first report of a knockdown resistance (kdr) mechanism in head lice from Mexico. The T929I mutation was present in all of the sampled schools, with variability observed in its allelic and genotypic frequencies. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  5. HEAD LICE IN HAIR SAMPLES FROM YOUTHS, ADULTS AND THE ELDERLY IN MANAUS, AMAZONAS STATE, BRAZIL

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    Suellen Cristina Barbosa NUNES

    2015-06-01

    Full Text Available A study of head lice infestations among young people, adults and elderly individuals was conducted from August 2010 to July 2013 in Manaus, AM, Northern Brazil. Hair samples collected from 1,860 individuals in 18 barber shops and beauty parlors were examined for the ectoparasite. The occurrence of pediculosis and its association with factors, such as sex, age, ethnicity, hair characteristics and the socioeconomic profile of salon customers, salon location and seasonal variation were determined. The overall occurrence rate was 2.84%. Occurrence was higher in hair samples from non-blacks and the elderly. Higher occurrence was also observed during kindergarten, elementary and junior education school holidays. The results indicate that the occurrence of head lice among young people, adults and the elderly in Manaus is relatively low compared to that determined in children and in other regions of the country. After children, the elderly were the most affected. The study also indicated the need to adopt additional procedures to improve surveys among the population with low or no purchasing power, which is usually the most affected by this ectoparasitic disease.

  6. HEAD LICE IN HAIR SAMPLES FROM YOUTHS, ADULTS AND THE ELDERLY IN MANAUS, AMAZONAS STATE, BRAZIL.

    Science.gov (United States)

    Nunes, Suellen Cristina Barbosa; Moroni, Raquel Borges; Mendes, Júlio; Justiniano, Sílvia Cássia Brandão; Moroni, Fábio Tonissi

    2015-01-01

    A study of head lice infestations among young people, adults and elderly individuals was conducted from August 2010 to July 2013 in Manaus, AM, Northern Brazil. Hair samples collected from 1,860 individuals in 18 barber shops and beauty parlors were examined for the ectoparasite. The occurrence of pediculosis and its association with factors, such as sex, age, ethnicity, hair characteristics and the socioeconomic profile of salon customers, salon location and seasonal variation were determined. The overall occurrence rate was 2.84%. Occurrence was higher in hair samples from non-blacks and the elderly. Higher occurrence was also observed during kindergarten, elementary and junior education school holidays. The results indicate that the occurrence of head lice among young people, adults and the elderly in Manaus is relatively low compared to that determined in children and in other regions of the country. After children, the elderly were the most affected. The study also indicated the need to adopt additional procedures to improve surveys among the population with low or no purchasing power, which is usually the most affected by this ectoparasitic disease.

  7. EDXRF analysis of Marajoara pubic covers

    International Nuclear Information System (INIS)

    Calza, C.; Anjos, M.J.; Bueno, M.I.M.S.; Lima, T.A.; Lopes, R.T.

    2007-01-01

    This work evaluated the elemental composition of decorated pottery pubic covers (tangas) from the Marajoara culture of Marajo Island (at the mouth of the Amazon River, Brazil) using EDXRF technique. The XRF system used in this work consists in a Si(Li) detector from ORTEC, with resolution of 180 eV, at 5.9 keV, and a mini X-ray tube with Mo anode. The elements identified in the samples were: S, Cl, K, Ca, Ti, Mn, Fe, Cu, Zn, Ga, Rb, Sr, Y, Zr and Pb. Principal components analysis (PCA) was used to evaluated the provenance of the samples

  8. Black piedra of the pubic hairs - a sexually transmitted disease ?

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    Pavithran K

    1990-01-01

    Full Text Available Block piedra affecting only the hairs of the pubic region is reported in a recently married young male. His wife was found to have similar disease on the hairs of the scalp and pubic region. A sexual mode of transmission of the disease to the patient from his wife is suggested.

  9. September 1975 Lice, Turkey Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Eastern Turkey. A magnitude 6.7 earthquake that struck the Turkish district of Lice at 12:20 local time (09:20 UTC) on September 6, 1975, killing 2,311 people. The...

  10. Efficacy of herbal shampoo base on native plant against head lice (Pediculus humanus capitis De Geer, Pediculidae: Phthiraptera) in vitro and in vivo in Thailand.

    Science.gov (United States)

    Soonwera, Mayura

    2014-09-01

    Head lice infestation (or pediculosis) is an important public health problem in Thailand, especially in children between the ages 5 and 11 years. Head lice resistance is increasing, chemical pediculicides have lost their efficacy, and, therefore, alternative pediculicides such as herbal shampoos have been proposed to treat head lice infestation. Thus, the present study investigated the efficacy of three herbal shampoos based on native plants in Thailand (Acorus calamus Linn., Phyllanthus emblica Linn., and Zanthoxylum limonella Alston) against head lice and compared them with carbaryl shampoo (Hafif shampoo, 0.6% w/v carbaryl), malathion shampoo (A-Lice shampoo, 1.0% w/v malathion), and commercial shampoos (Babi Mild Natural' N Mild and Johnson's baby shampoo) in order to assess their in vitro and in vivo efficacy. For in vitro study, doses of 0.12 and 0.25 ml/cm(2) of each herbal shampoo were applied to filter paper, then 10 head lice were place on the filter paper. The mortalities of head lice were recorded at 5, 15, 30, and 60 min. The results revealed that all herbal shampoo were more effective on pediculicidal activity than chemical and commercial shampoos with 100% mortality at 15 min; LT₅₀ values ranged from 0.25 to 1.90 min. Meanwhile, chemical shampoos caused 20-80% mortality, and LT₅₀ values ranged from 6.50 to 85.43 min. On the other side, commercial shampoos showed 4.0% mortality. The most effective pediculicide was Z. limonella shampoo, followed by A. calamus shampoo, P. emblica shampoo, carbaryl shampoo, malathion shampoo, and commercial shampoo, respectively. In vivo results showed that all herbal shampoos were also more effective for head lice treatment than chemical and commercial shampoos with 94.67-97.68% of cure rate after the first treatment; the second treatment, 7 days later, revealed that the cure rate was 100%. Meanwhile, chemical shampoo showed 71.67-93.0% of cure rate and, unfortunately, commercial shampoos were nontoxic to

  11. EDXRF analysis of Marajoara pubic covers

    Energy Technology Data Exchange (ETDEWEB)

    Calza, Cristiane; Lopes, Ricardo Tadeu [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia. Lab. de Instrumentacao Nuclear]. E-mail: ccalza@lin.ufrj.br; ricardo@lin.ufrj.br; Anjos, Marcelino Jose dos [Universidade do Estado, Rio de Janeiro, RJ (Brazil). Inst. de Fisica]. E-mail: marcelin@lin.ufrj.br; Lima, Tania Andrade [Museu Nacional, Rio de Janeiro, RJ (Brazil)]. E-mail: talima@montreal.com.br

    2005-07-01

    This work evaluated the elemental composition of decorated pottery pubic covers (tangas) from the Marajoara culture of Marajo Island (located at the mouth of the Amazon River, Brazil). The tangas were used by Marajoara girls probably as part of puberty rites and were anatomically adjustable to the body, containing holes on its corners for string attachment. The samples included two tangas and four fragments from the National Museum collection. One fragment (sample 22245) presented a different design pattern that seemed to indicate a different provenance. EDXRF was performed at the Nuclear Instrumentation Laboratory (COPPE/UFRJ), using a Si(Li) detector from ORTEC with resolution of 180 eV at 5.9 keV and a mini x-ray tube with Mo anode. The angle of the incident x-ray beam was 16 deg and the detector was placed at 90 deg to the sample surface. The elements identified in the samples were: S, Cl, K, Ca, Ti, Mn, Fe, Cu, Zn, Ga, Rb, Sr, Y, Zr and Pb. Principal Component Analysis (PCA) was used to evaluate the provenance of the samples. (author)

  12. Lice Aren't So Nice

    Science.gov (United States)

    ... it's a good idea for an adult to wash all your bedding, hats, clothing, and stuffed animals in hot water. Or he or she can seal these things in airtight bags for 10 days. That also will kill the lice and their eggs. Vacuuming the carpets, upholstery, and car seats will take care of any lice that ...

  13. Genotyping of human lice suggests multiple emergencies of body lice from local head louse populations.

    Directory of Open Access Journals (Sweden)

    Wenjun Li

    Full Text Available BACKGROUND: Genetic analyses of human lice have shown that the current taxonomic classification of head lice (Pediculus humanus capitis and body lice (Pediculus humanus humanus does not reflect their phylogenetic organization. Three phylotypes of head lice A, B and C exist but body lice have been observed only in phylotype A. Head and body lice have different behaviours and only the latter have been involved in outbreaks of infectious diseases including epidemic typhus, trench fever and louse borne recurrent fever. Recent studies suggest that body lice arose several times from head louse populations. METHODS AND FINDINGS: By introducing a new genotyping technique, sequencing variable intergenic spacers which were selected from louse genomic sequence, we were able to evaluate the genotypic distribution of 207 human lice. Sequence variation of two intergenic spacers, S2 and S5, discriminated the 207 lice into 148 genotypes and sequence variation of another two intergenic spacers, PM1 and PM2, discriminated 174 lice into 77 genotypes. Concatenation of the four intergenic spacers discriminated a panel of 97 lice into 96 genotypes. These intergenic spacer sequence types were relatively specific geographically, and enabled us to identify two clusters in France, one cluster in Central Africa (where a large body louse outbreak has been observed and one cluster in Russia. Interestingly, head and body lice were not genetically differentiated. CONCLUSIONS: We propose a hypothesis for the emergence of body lice, and suggest that humans with both low hygiene and head louse infestations provide an opportunity for head louse variants, able to ingest a larger blood meal (a required characteristic of body lice, to colonize clothing. If this hypothesis is ultimately supported, it would help to explain why poor human hygiene often coincides with outbreaks of body lice. Additionally, if head lice act as a reservoir for body lice, and that any social degradation in

  14. Identification of Novel Voltage-Gated Sodium Channel Mutations in Human Head and Body Lice (Phthiraptera: Pediculidae).

    Science.gov (United States)

    Firooziyan, Samira; Sadaghianifar, Ali; Taghilou, Behrooz; Galavani, Hossein; Ghaffari, Eslam; Gholizadeh, Saber

    2017-09-01

    In recent years, the increase of head louse infestation in Iran (7.4%) and especially in West-Azerbaijan Province (248%) has raised the hypothesis of insecticide resistance development. There are different mechanisms of resistance to various groups of insecticides, and knockdown resistance (kdr) is a prominent mechanism of resistance to pyrethroids, an insecticide group which is used conventionally for pediculosis control. For detection of kdr-type well-known amino acid substitutions (M815I-T917I-L920F) and additional sodium channel mutations potentially associated with kdr resistance in head and body lice, louse populations were collected from West-Azerbaijan and Zanjan Provinces of Iran. Six novel mutations were found to be located in the IIS1-2 extracellular loop (H813P) and IIS5 (I927F, L928A, R929V, L930M, and L932M) of the α-subunit. Genotyping results showed that all specimens (100%) have at least one of these or the well-known mutations. Therefore, the presence of kdr-related and novel mutations in the sodium channel is likely to be the reason for the frequent use of pyrethroid insecticides due to treatment failure against lice. Further studies are now required to evaluate the prevalence of the kdr-like mutant allele for monitoring of insecticide resistance and the management of head and body lice in other provinces of the country. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  15. Endoscopic Pubic Symphysectomy for Athletic Osteitis Pubis.

    Science.gov (United States)

    Matsuda, Dean K; Sehgal, Bantoo; Matsuda, Nicole A

    2015-06-01

    Osteitis pubis is a common form of athletic pubalgia associated with femoroacetabular impingement. Endoscopic pubic symphysectomy was developed as a less invasive option than open surgical curettage for recalcitrant osteitis pubis. This technical note demonstrates the use of the anterior and suprapubic portals in the supine lithotomy position for endoscopic burr resection of pubic symphyseal fibrocartilage and hyaline endplates. Key steps include use of the suprapubic portal for burr resection of the posteroinferior symphysis and preservation of the posterior and arcuate ligaments. Endoscopic pubic symphysectomy is a minimally invasive bone-conserving surgery that retains stability and may be useful in the treatment of recalcitrant osteitis pubis or osteoarthritis. It nicely complements arthroscopic surgery for femoroacetabular impingement and may find broader application in this group of co-affected athletes.

  16. Long-term pubic dermatitis diagnosed as white piedra.

    Science.gov (United States)

    Landero, James

    2017-12-01

    The case of a 58-year-old man with a pruritic rash involving the pubic area that had been undiagnosed for 30 years is presented. At least 15 different primary care physicians and dermatologists evaluated the patient during this time period. Multiple treatments were unsuccessful and a definitive diagnosis was not rendered. Wood lamp evaluation of the pubic area revealed hair shaft concretions that were confirmed on histologic evaluation to be white piedra (WP). The patient was successfully treated with topical ketoconazole and the eruption completely resolved. Our case raises awareness of the use of Wood lamp and dermoscopy to evaluate for parasitic infections of the pubic hair shafts when nonspecific dermatitis presents in this area.

  17. Head Lice: Malathion Frequently Asked Questions

    Science.gov (United States)

    ... be checked for signs of infestation. Does malathion kill head lice eggs? Yes. The malathion lotion (Ovide*) ... Privacy FOIA No Fear Act OIG 1600 Clifton Road Atlanta , GA 30329-4027 USA 800-CDC-INFO ( ...

  18. Ischio-pubic-patellar hypoplasia: is it a new syndrome?

    International Nuclear Information System (INIS)

    Habboub, H.K.; Thneibat, W.A.

    1997-01-01

    Aplasia/hypoplasia of the patella has been described as an isolated finding or, more commonly, as a part of congenital syndromes. We describe here bilateral absence of the patella in an 11-year-old girl with absence of the ischial and inferior pubic rami bilaterally. Other associated skeletal and soft-tissue deformities are also reported. To our knowledge, the constellation of these findings has not been described previously and represents a unique syndrome. (orig.). With 1 fig

  19. [Treatment of pubic osteomyelitis secondary to pressure sores].

    Science.gov (United States)

    Brunel, Anne-Sophie; Téot, Luc; Lamy, Brigitte; Masson, Raphaël; Morquin, David; Reynes, Jacques; Le Moing, Vincent

    2014-01-01

    There is no consensus regarding the diagnostic and therapeutic strategy for pubic osteomyelitis secondary to pelvic pressure sores. Diagnosis is often difficult and bone biopsies with microbiological and anatomical-pathological examination remain the gold standard. The rate of cicatrisation of pressure sores is low. Cleansing and negative pressure treatment are key elements of the treatment. Optimising the care management with medical-surgical collaboration is being studied in the Ostear protocol.

  20. AGE DETERMINATION FROM PUBIC SYMPHYSEAL CHANGES- AN AUTOPSY STUDY

    Directory of Open Access Journals (Sweden)

    Jinesh Parambathettu Sasidharan

    2017-02-01

    Full Text Available BACKGROUND Biological identity is one of the first things to be established when analysing skeletal, badly decomposed or otherwise unidentified human remains. The determination of age at death is an important component of identity establishment. Pubic symphysis examination is one of the reliable methods of age estimation. We attempt to determine the age of deceased from pubic symphysis using Suchey-Brooks method and to find the accuracy of Suchey-Brooks method in our population. From among the cases brought for autopsy at Department of Forensic Medicine, Government Medical College, Kottayam, Kerala, from 01/03/2012 to 28/02/2013, 316 cases were included in the study. Their pubic symphysis were harvested. Age determined using SucheyBrooks method and compared with their chronological age. The aim of the study is to- 1. Determine the age of deceased from pubic symphysis using Suchey-Brooks method. 2. Compare the age determined by Suchey-Brooks method and chronological age and find the accuracy of Suchey-Brooks method in our population. MATERIALS AND METHODS Study Design- Descriptive study- Cross-sectional study, Centre of Study- Department of Forensic Medicine, Government Medical College, Kottayam, Study Sample- From the cases brought for medicolegal postmortem examination in the Department of Forensic Medicine, Government Medical College, Kottayam, Kerala, a sample of 316 cases were selected. To make the distribution among various age groups, even the total sample divided for the age group, which resulted in having 60 samples per age group. Age groups were considered as Group 1- Age between 18-25 years; Group 2- Age between 25-35 years; Group 3- Age between 35-45 years; Group 4- Age between 45-55 years; Group 5- Age between 55-65 years. Inclusion Criteria- 1. Cases with known age; 2. Cases whose age between 18 and 65 years. Exclusion Criteria- 1. Unknown cases; 2. Known cases with doubtful age; 3. Individuals having pubic bone trauma involving the

  1. Radiographic findings after pubic symphysiotomy: mean time to follow-up of 41.6 years.

    LENUS (Irish Health Repository)

    Galbraith, John G

    2014-01-01

    Pubic symphysiotomy is a rarely performed procedure in which the pubic symphysis is divided to facilitate vaginal delivery in cases of obstructed labor. Recently, many obstetricians have shown renewed interest in this procedure. The purpose of this paper is to report the long-term radiographic findings for patients who had undergone pubic symphysiotomy compared with the radiographic appearance of a group of age-matched and parity-matched controls.

  2. 64-year-old male with septic arthritis of the pubic symphysis

    Directory of Open Access Journals (Sweden)

    Mark Lee

    2011-09-01

    Full Text Available Septic arthritis of the pubic symphysis is a rare disease. Typical clinical features include fever, pubic or groin pain, pain with hip motion, and painful or waddling gait. Identified predisposing factors to develop an infection in pubic joint include female incontinence surgery or postpartum period; sports, especially soccer; pelvic malignancy; and intravenous drug abuse. The most often identified microorganisms were Staphylococcus aureus and Pseudomonas aeruginosa. Osteomyelitis complicates the majority of cases, and about half of the patients require surgical debridement along with a prolonged antibiotic treatment. We report a case of Streptococcus anginosus septic arthritis of the pubic symphysis. The patient did not have any of the above risk factors.

  3. 64-year-old male with septic arthritis of the pubic symphysis

    Directory of Open Access Journals (Sweden)

    Ewa Konik

    2011-10-01

    Full Text Available Septic arthritis of the pubic symphysis is a rare disease. Typical clinical features include fever, pubic or groin pain, pain with hip motion, and painful or waddling gait. Identified predisposing factors to develop an infection in pubic joint include female incontinence surgery or postpartum period; sports, especially soccer; pelvic malignancy; and intravenous drug abuse. The most often identified microorganisms were Staphylococcus aureus and Pseudomonas aeruginosa. Osteomyelitis complicates the majority of cases, and about half of the patients require surgical debridement along with a prolonged antibiotic treatment. We report a case of Streptococcus anginosus septic arthritis of the pubic symphysis. The patient did not have any of the above risk factors.

  4. Primates, Lice and Bacteria: Speciation and Genome Evolution in the Symbionts of Hominid Lice.

    Science.gov (United States)

    Boyd, Bret M; Allen, Julie M; Nguyen, Nam-Phuong; Vachaspati, Pranjal; Quicksall, Zachary S; Warnow, Tandy; Mugisha, Lawrence; Johnson, Kevin P; Reed, David L

    2017-07-01

    Insects with restricted diets rely on symbiotic bacteria to provide essential metabolites missing in their diet. The blood-sucking lice are obligate, host-specific parasites of mammals and are themselves host to symbiotic bacteria. In human lice, these bacterial symbionts supply the lice with B-vitamins. Here, we sequenced the genomes of symbiotic and heritable bacterial of human, chimpanzee, gorilla, and monkey lice and used phylogenomics to investigate their evolutionary relationships. We find that these symbionts have a phylogenetic history reflecting the louse phylogeny, a finding contrary to previous reports of symbiont replacement. Examination of the highly reduced symbiont genomes (0.53-0.57 Mb) reveals much of the genomes are dedicated to vitamin synthesis. This is unchanged in the smallest symbiont genome and one that appears to have been reorganized. Specifically, symbionts from human lice, chimpanzee lice, and gorilla lice carry a small plasmid that encodes synthesis of vitamin B5, a vitamin critical to the bacteria-louse symbiosis. This plasmid is absent in an old world monkey louse symbiont, where this pathway is on its primary chromosome. This suggests the unique genomic configuration brought about by the plasmid is not essential for symbiosis, but once obtained, it has persisted for up to 25 My. We also find evidence that human, chimpanzee, and gorilla louse endosymbionts have lost a pathway for synthesis of vitamin B1, whereas the monkey louse symbiont has retained this pathway. It is unclear whether these changes are adaptive, but they may point to evolutionary responses of louse symbionts to shifts in primate biology. © The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

  5. Synostosis Between Pubic Bones due to Neurogenic, Heterotopic Ossification

    Directory of Open Access Journals (Sweden)

    Subramanian Vaidyanathan

    2006-01-01

    Full Text Available Neurogenic, heterotopic ossification is characterised by the formation of new, extraosseous (ectopic bone in soft tissue in patients with neurological disorders. A 33-year-old female, who was born with spina bifida, paraplegia, and diastasis of symphysis pubis, had indwelling urethral catheter drainage and was using oxybutynin bladder instillations. She was prescribed diuretic for swelling of feet, which aggravated bypassing of catheter. Hence, suprapubic cystostomy was performed. Despite anticholinergic therapy, there was chronic urine leak around the suprapubic catheter and per urethra. Therefore, the urethra was mobilised and closed. After closure of the urethra, there was no urine leak from the urethra, but urine leak persisted around the suprapubic catheter. Cystogram confirmed the presence of a Foley balloon inside the bladder; there was no urinary fistula. The Foley balloon ruptured frequently, leading to extrusion of the Foley catheter. X-ray of abdomen showed heterotopic bone formation bridging the gap across diastasis of symphysis pubis. CT of pelvis revealed heterotopic bone lying in close proximity to the balloon of the Foley catheter; the sharp edge of heterotopic bone probably acted like a saw and led to frequent rupture of the balloon of the Foley catheter. Unique features of this case are: (1 temporal relationship of heterotopic bone formation to suprapubic cystostomy and chronic urine leak; (2 occurrence of heterotopic ossification in pubic region; (3 complications of heterotopic bone formation viz. frequent rupture of the balloon of the Foley catheter by the irregular margin of heterotopic bone and difficulty in insertion of suprapubic catheter because the heterotopic bone encroached on the suprapubic track; (4 synostosis between pubic bones as a result of heterotopic ossification..Common aetiological factors for neurogenic, heterotopic ossification, such as forceful manipulation, trauma, or spasticity, were absent in this

  6. Identifying salmon lice transmission characteristics between Faroese salmon farms

    DEFF Research Database (Denmark)

    Kragesteen, Trondur J.; Simonsen, Knud; Visser, AW

    2018-01-01

    Sea lice infestations are an increasing challenge in the ever-growing salmon aquaculture sector and cause large economic losses. The high salmon production in a small area creates a perfect habitat for parasites. Knowledge of how salmon lice planktonic larvae disperse and spread the infection...... between farms is of vital importance in developing treatment management plans to combat salmon lice infestations. Using a particle tracking model forced by tidal currents, we show that Faroese aquaculture farms form a complex network. In some cases as high as 10% of infectious salmon lice released at one...... for the entire Faroese salmon industry...

  7. Post-traumatic Perineal Pubic Rami Protrusion: A Simple Surgical Management

    Directory of Open Access Journals (Sweden)

    Voon Victor

    2014-06-01

    Full Text Available Although pubic ramus fractures are common, they usually heal without surgical intervention and result in little long-term disability. We herein present two cases of symptomatic malunion of pubic rami fracture, which was successfully treated with a simple and safe surgical technique. The patients' local symptoms resolved afterwards.

  8. Effects of pelvic rotation and needle angle on pubic arch interference during transperineal prostate implants

    International Nuclear Information System (INIS)

    Tincher, Sandra A.; Kim, Robert Y.; Ezekiel, Mark P.; Zinsli, Tom; Fiveash, John B.; Raben, David A.; Bueschen, Anton J.; Urban, Donald A.

    2000-01-01

    Purpose: Pubic arch interference due to an enlarged prostate gland or a narrow pubic arch is often a limiting factor in adequate prostate coverage during transperineal brachytherapy. The purpose of this study was to evaluate the effects of both pelvic rotation and needle angles on pubic arch interference using CT-based 3-D information. Methods and Materials: Seven patients had CT imaging in both supine and lithotomy positions and 3-D treatment planning was performed with three needle angles (20 downward, 0, 20 upward). The pubic arch interference was then measured and comparisons were made for each needle trajectory and pelvic position. Results: Increasing pelvic rotation from supine to lithotomy position shows less pubic arch interference. Directing the needle tip upward shows less pubic arch interference in both supine and lithotomy positions when compared to needle tips directed downward. Conclusions: Both pelvic position and needle angles are important factors influencing pubic arch interference. Preplanning CT-based 3-D information may assist for individualized treatment planning in patients with a significant bony interference, thus avoiding pubic arch interference during implantation

  9. Two cases of pyogenic osteomyelitis of pubic bone after irradiation for cervical carcinoma of the uterine

    International Nuclear Information System (INIS)

    Moriyama, Ichiro; Matsumoto, Morio; Yamauchi, Kenji; Horiuchi, Kiwamu; Morisue, Hikaru; Yamagishi, Masaaki; Tanaka, Mamoru

    1999-01-01

    Two cases of pyogenic osteomyelitis of pubic bone occurred after irradiation of cervical carcinoma were reported. Case 1: A 69-year-old female received external irradiation of 50 Gy from November 1993 to April 1994 after supravaginal uterine amputation. The left melosalgia and pain at left pubic region appeared from July 1994. On the MRI, bone marrow of the left pubic region showed low brightness by T1 weighted image and equal brightness by T2 weighted image, and the image was enhanced by gadolinium. An abscess in external obturator muscle was suspected. High accumulation was recognized by bone scintigram at the left pubic region. No bacterial infection was recognized. Focus was removed in May 1995. Case 2: A 80-year-old female received external irradiation of 50 Gy and intracavitary irradiation of 30 Gy in May 1992. Pain at left pubic region appeared from June 1993. Dilation of pubic symphysis and osteoclasia of the left pubic bone were detected on the plain radiograph in March 1995. On the MRI, the left pubic bone marrow showed low brightness by T1 weighted image and equal brightness by T2 weighted image, and image was enhanced by gadolinium. An abscess in small pelvic cavity was suspected. Streptococcus agalactae was detected in abscess, and PIPC was administered by drip infusion for five weeks. They are currently alive and doing well about three years later. (K.H.)

  10. Lice infesting horses in three agroecological zones in central Oromia.

    Science.gov (United States)

    Tafese, Adane; Jibat, Tariku; Aklilu, Nigatu; Zewdu, Hanna; Kumsa, Bersissa

    2014-12-01

    A cross-sectional study was conducted to determine the prevalence and species composition of lice infesting horses in three agroecological zones in seven different districts in central Oromia from November 2011 to April 2012. For this purpose, a total of 420 horses were thoroughly examined for presence of lice. Collected lice were identified to species level under a microscope. The study showed an overall prevalence of 28.8 % (121/420) lice infestation on horses. We identified two spp. of lice on horses namely, Bovicola (Werneckiella) equi and Haematopinus asini with an overall prevalence of 22.9 % (96/420) and 5.9 % (25/420), respectively. The overall prevalence of lice infestation on horses in districts was 48.3, 43.3, 33.3, 23.3, 21.7, 18.3 and 13.3 %, in Debre Brehan, Shashemene, Hawassa, Akaki, Adama, Modjo and Bishoftu, respectively. B. equi was encountered as the predominant species on horses in all districts. Higher overall prevalence of lice infestation was recorded in highland agroecology than mid and lowland agroecological zones. Similarly, our study revealed significantly higher overall prevalence of lice on saddle horses than on cart horses. In view of the findings of the present study two species of lice are responsible for health and welfare problems of horses in all the districts. Detailed epidemiological studies on the significance, prevalence and role of lice as vectors of zoonotic pathogens in different agroecological zones, breeds and management systems warrant urgent attention. Animal owners and veterinarians should consider lice control in horses as part of the ectoparasite control in other species of animals.

  11. Fleas and lice of mammals in New Mexico

    Science.gov (United States)

    Paulette L. Ford; Richard A. Fagerlund; Donald W. Duszynski; Paul J. Polechla

    2004-01-01

    All available records are compiled for three orders of ectoparasites of mammals in New Mexico: fleas (Siphonaptera), sucking lice (Anoplura), and chewing lice (Mallophaga). We have drawn from records at the University of New Mexico's Museum of Southwestern Biology, the Vector Control Program of the New Mexico Environment Department, the Environmental Health...

  12. Effects of salmon lice infection and salmon lice protection on fjord migrating Atlantic salmon and brown trout post-smolts

    DEFF Research Database (Denmark)

    Sivertsgard, Rolf; Thorstad, Eva B.; Okland, Finn

    2007-01-01

    Effects of artificial salmon lice infection and pharmaceutical salmon lice prophylaxis on survival and rate of progression of Atlantic salmon (n = 72) and brown trout post-smolts (n = 72) during their fjord migration, were studied by telemetry. The infected groups were artificially exposed...... to infective salmon lice larvae in the laboratory immediately before release in the inner part of the fjord to simulate a naturally high infection pressure. Groups of infected Atlantic salmon (n = 20) and brown trout (n = 12) were also retained in the hatchery to control the infection intensity and lice...... development during the study period. Neither salmon lice infection nor pharmaceutical prophylaxis had any effects on survival and rate of progression of fjord migrating Atlantic salmon post-smolts compared to control fish. Atlantic salmon spent on average only 151.2 h (maximum 207.3 h) in passing the 80 km...

  13. Salmon lice – impact on wild salmonids and salmon aquaculture

    Science.gov (United States)

    Torrissen, O; Jones, S; Asche, F; Guttormsen, A; Skilbrei, O T; Nilsen, F; Horsberg, T E; Jackson, D

    2013-01-01

    Salmon lice, Lepeophtheirus salmonis, are naturally occurring parasites of salmon in sea water. Intensive salmon farming provides better conditions for parasite growth and transmission compared with natural conditions, creating problems for both the salmon farming industry and, under certain conditions, wild salmonids. Salmon lice originating from farms negatively impact wild stocks of salmonids, although the extent of the impact is a matter of debate. Estimates from Ireland and Norway indicate an odds ratio of 1.1:1-1.2:1 for sea lice treated Atlantic salmon smolt to survive sea migration compared to untreated smolts. This is considered to have a moderate population regulatory effect. The development of resistance against drugs most commonly used to treat salmon lice is a serious concern for both wild and farmed fish. Several large initiatives have been taken to encourage the development of new strategies, such as vaccines and novel drugs, for the treatment or removal of salmon lice from farmed fish. The newly sequenced salmon louse genome will be an important tool in this work. The use of cleaner fish has emerged as a robust method for controlling salmon lice, and aquaculture production of wrasse is important towards this aim. Salmon lice have large economic consequences for the salmon industry, both as direct costs for the prevention and treatment, but also indirectly through negative public opinion. PMID:23311858

  14. Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity Auto diagnóstico de pediculose por indivíduos de uma comunidade economicamente desfavorecida: alta sensibilidade e especificidade

    Directory of Open Access Journals (Sweden)

    Daniel Pilger

    2008-04-01

    Full Text Available To compare sensitivity, specificity, positive predictive value (PPV and negative predictive value (NPV of self-diagnosis for head lice infestation with visual inspection, we conducted a study in an urban slum in Brazil. Individuals were asked about active head lice infestation (self-diagnosis; we performed visual inspection and thereafter wet combing (gold standard. Of the 175 individuals included, 77 (44% had an active head lice infestation. For self-diagnosis, sensitivity (80.5%, specificity (91.8%, PPV (88.6% and NPV (85.7% were high. Sensitivity of visual inspection was 35.1%. Public health professionals can use self-diagnosis as a diagnostic tool, to estimate accurately prevalence of pediculosis in a community, and to monitor ongoing intervention strategies.Foi conduzido um estudo em uma favela urbana no Brasil com o objetivo de comparar a sensibilidade, especificidade, valor preditivo positivo (VPP e valor preditivo negativo (VPN do auto-diagnóstico de pediculose com a inspeção visual. Dos 175 indivíduos incluídos, 77 (44% apresentavam pediculose. Para o auto-diagnóstico, a sensibilidade (80.5%, a especificidade (91.8%, o VPP (88.6% e o VPN (85.7% foram altos. A sensibilidade da inspeção visual foi 35.1%. Profissionais de saúde podem utilizar o auto-diagnóstico como uma ferramenta diagnóstica para estimar de forma acurada a prevalência de pediculose em uma comunidade, como também para monitorar estratégias de controle da doença.

  15. Chewing lice (Insecta: Phthiraptera) associated with vertebrates in Mexico.

    Science.gov (United States)

    SÁnchez-Montes, Sokani; Colunga-Salas, Pablo; Álvarez-Castillo, LucÍa; GuzmÁn-Cornejo, Carmen; Montiel-Parra, Griselda

    2018-01-15

    The chewing lice (Insecta: Phthiraptera: Amblycera and Ischnocera) of Mexico have been little studied and many publications include isolated records. This paper summarizes current knowledge of chewing lice recorded from Mexico resulting from an exhaustive search of the literature published from 1866 to 2017. We found 342 louse species associated with 206 bird and 28 mammal species. As a result, we provide a checklist of the chewing lice recorded from Mexico, including a host-parasite list and their geographical distribution within the country.

  16. Pain and Mean Absorbed Dose to the Pubic Bone After Radiotherapy Among Gynecological Cancer Survivors

    International Nuclear Information System (INIS)

    Waldenstroem, Ann-Charlotte; Olsson, Caroline; Wilderaeng, Ulrica; Dunberger, Gail; Lind, Helena; Al-Abany, Massoud; Palm, Asa; Avall-Lundqvist, Elisabeth; Johansson, Karl-Axel; Steineck, Gunnar

    2011-01-01

    Purpose: To analyze the relationship between mean absorbed dose to the pubic bone after pelvic radiotherapy for gynecological cancer and occurrence of pubic bone pain among long-term survivors. Methods and Materials: In an unselected, population-based study, we identified 823 long-term gynecological cancer survivors treated with pelvic radiotherapy during 1991-2003. For comparison, we used a non-radiation-treated control population of 478 matched women from the Swedish Population Register. Pain, intensity of pain, and functional impairment due to pain in the pubic bone were assessed with a study-specific postal questionnaire. Results: We analyzed data from 650 survivors (participation rate 79%) with median follow-up of 6.3 years (range, 2.3-15.0 years) along with 344 control women (participation rate, 72 %). Ten percent of the survivors were treated with radiotherapy; ninety percent with surgery plus radiotherapy. Brachytherapy was added in 81%. Complete treatment records were recovered for 538/650 survivors, with dose distribution data including dose-volume histograms over the pubic bone. Pubic bone pain was reported by 73 survivors (11%); 59/517 (11%) had been exposed to mean absorbed external beam doses <52.5 Gy to the pubic bone and 5/12 (42%) to mean absorbed external beam doses ≥52.5 Gy. Thirty-three survivors reported pain affecting sleep, a 13-fold increased prevalence compared with control women. Forty-nine survivors reported functional impairment measured as pain walking indoors, a 10-fold increased prevalence. Conclusions: Mean absorbed external beam dose above 52.5 Gy to the pubic bone increases the occurrence of pain in the pubic bone and may affect daily life of long-term survivors treated with radiotherapy for gynecological cancer.

  17. Evidence that head and body lice on homeless persons have the same genotype.

    Directory of Open Access Journals (Sweden)

    Aurélie Veracx

    Full Text Available Human head lice and body lice are morphologically and biologically similar but have distinct ecologies. They were shown to have almost the same basic genetic content (one gene is absent in head lice, but differentially express certain genes, presumably responsible for the vector competence. They are now believed to be ecotypes of the same species (Pediculus humanus and based on mitochondrial studies, body lice have been included with head lice in one of three clades of human head lice (Clade A. Here, we tested whether head and body lice collected from the same host belong to the same population by examining highly polymorphic intergenic spacers. This study was performed on lice collected from five homeless persons living in the same shelter in which Clade A lice are prevalent. Lice were individually genotyped at four spacer loci. The genetic identity and diversity of lice from head and body populations were compared for each homeless person. Population genetic structure was tested between lice from the two body regions and between the lice from different host individuals.We found two pairs of head and body lice on the same homeless person with identical multi locus genotypes. No difference in genetic diversity was found between head and body louse populations and no evidence of significant structure between the louse populations was found, even after controlling for a possible effect of the host individual. More surprisingly, no structure was obvious between lice of different homeless persons.We believe that the head and body lice collected from our five subjects belong to the same population and are shared between people living in the same shelter. These findings confirm that head and body lice are two ecotypes of the same species and show the importance of implementing measures to prevent lice transmission between homeless people in shelters.

  18. Talk About Nitpicking! Back-to-School and Head Lice

    Centers for Disease Control (CDC) Podcasts

    2008-05-30

    Head lice are a fairly common problem, especially in preschool and elementary school children. This podcast will help you understand how people get head lice, and how to get rid of them!  Created: 5/30/2008 by National Center for Zoonotic, Vector-Borne, and Enteric Diseases (NCZVED), Division of Parasitic Diseases (DPD).   Date Released: 8/4/2008.

  19. Talk About Nitpicking! Summer Camp and Head Lice

    Centers for Disease Control (CDC) Podcasts

    2008-05-30

    Head lice are a fairly common problem, especially in preschool and elementary school children. This podcast will help you understand how people get head lice, and how to get rid of them!  Created: 5/30/2008 by National Center for Zoonotic, Vector-Borne, and Enteric Diseases (NCZVED), Division of Parasitic Diseases (DPD).   Date Released: 6/4/2008.

  20. Distribution of chewing lice upon the polygynous peacock Pavo cristatus.

    Science.gov (United States)

    Stewart, I R; Clark, F; Petrie, M

    1996-04-01

    An opportunistic survey of louse distribution upon the peacock Pavo cristatus was undertaken following a cull of 23 birds from an English zoo. After complete skin and feather dissolution, 2 species of lice were retrieved, Goniodes pavonis and Amyrsidea minuta. The distribution of both louse species could be described by a negative binomial model. The significance of this is discussed in relation to transmission dynamics of lice in the atypical avian mating system found in the peacock, which involves no male parental care.

  1. Pain and mean absorbed dose to the pubic bone after radiotherapy among gynecological cancer survivors.

    Science.gov (United States)

    Waldenström, Ann-Charlotte; Olsson, Caroline; Wilderäng, Ulrica; Dunberger, Gail; Lind, Helena; al-Abany, Massoud; Palm, Åsa; Avall-Lundqvist, Elisabeth; Johansson, Karl-Axel; Steineck, Gunnar

    2011-07-15

    To analyze the relationship between mean absorbed dose to the pubic bone after pelvic radiotherapy for gynecological cancer and occurrence of pubic bone pain among long-term survivors. In an unselected, population-based study, we identified 823 long-term gynecological cancer survivors treated with pelvic radiotherapy during 1991-2003. For comparison, we used a non-radiation-treated control population of 478 matched women from the Swedish Population Register. Pain, intensity of pain, and functional impairment due to pain in the pubic bone were assessed with a study-specific postal questionnaire. We analyzed data from 650 survivors (participation rate 79%) with median follow-up of 6.3 years (range, 2.3-15.0 years) along with 344 control women (participation rate, 72 %). Ten percent of the survivors were treated with radiotherapy; ninety percent with surgery plus radiotherapy. Brachytherapy was added in 81%. Complete treatment records were recovered for 538/650 survivors, with dose distribution data including dose-volume histograms over the pubic bone. Pubic bone pain was reported by 73 survivors (11%); 59/517 (11%) had been exposed to mean absorbed external beam doses beam doses ≥ 52.5 Gy. Thirty-three survivors reported pain affecting sleep, a 13-fold increased prevalence compared with control women. Forty-nine survivors reported functional impairment measured as pain walking indoors, a 10-fold increased prevalence. Mean absorbed external beam dose above 52.5 Gy to the pubic bone increases the occurrence of pain in the pubic bone and may affect daily life of long-term survivors treated with radiotherapy for gynecological cancer. Copyright © 2011 Elsevier Inc. All rights reserved.

  2. Using an Elastic Band Device After a Severe Obstetric Pubic Symphyseal Separation: Clinical and Imaging Evaluation.

    Science.gov (United States)

    Lasbleiz, Jeremy; Sevestre, François-Xavier; Moquet, Pierre-Yves

    2017-09-01

    Severe separation of the pubic symphysis is a rare delivery complication. Facing this pathology, we decided to study a new elastic band device. To evaluate the elastic band device, clinical (pain-rated) and imaging (magnetic resonance imaging and radiography) evaluations with and without the device were performed. The elastic band device is a European Conformity-certified medical device, which is made of neoprene straps, that reduces the mobility of the pelvis and the use of the internal rotator muscles. Once the elastic band device was in place, on postpartum day 1, radiography showed a decrease of the pubic width from 41 to 12 mm. Furthermore, pain decreased from 10 of 10 to 2 of 10 in 2 days, allowing the patient to ambulate and avoid surgery. After 1 month, the pubic width (6 mm) and anatomy were recovered but minor pain was still present with hip rotatory movements. The elastic band device was worn 24 hours a day from postpartum days 1-90 and 12 hours a day from postpartum days 90 to 150; afterward, the patient returned to normal life without the elastic band device. Use of an elastic band device was associated with a reduction of the pubic width and pain associated after obstetric pubic symphysis separation.

  3. Use of scanning electron microscopy to confirm the identity of lice infesting communally grazed goat herds

    OpenAIRE

    P.J. Sebei; C.M.E. McCrindle; E.D. Green; M.L. Turner

    2004-01-01

    Lice have been described on goats in commercial farming systems in South Africa but not from flocks on communal grazing. During a longitudinal survey on the causes of goat kid mortality, conducted in Jericho district, North West Province, lice were collected from communally grazed indigenous goats. These lice were prepared for and viewed by scanning electron microscopy, and micromorphological taxonomic details are described. Three species of lice were found in the study area and identif...

  4. Acute prurigo simplex in humans caused by pigeon lice.

    Science.gov (United States)

    Stolf, Hamilton Ometto; Reis, Rejane d'Ávila; Espósito, Ana Cláudia Cavalcante; Haddad Júnior, Vidal

    2018-03-01

    Pigeon lice are insects that feed on feathers of these birds; their life cycle includes egg, nymph and adult and they may cause dermatoses in humans. Four persons of the same family, living in an urban area, presented with widespread intensely pruritic erythematous papules. A great number of lice were seen in their house, which moved from a nest of pigeons located on the condenser of the air-conditioning to the dormitory of one of the patients. Even in urban environments, dermatitis caused by parasites of birds is a possibility in cases of acute prurigo simplex. Pigeon lice are possible etiological agents of this kind of skin eruption, although they are often neglected, even by dermatologists.

  5. Use of scanning electron microscopy to confirm the identity of lice infesting communally grazed goat herds

    Directory of Open Access Journals (Sweden)

    P.J. Sebei

    2004-11-01

    Full Text Available Lice have been described on goats in commercial farming systems in South Africa but not from flocks on communal grazing. During a longitudinal survey on the causes of goat kid mortality, conducted in Jericho district, North West Province, lice were collected from communally grazed indigenous goats. These lice were prepared for and viewed by scanning electron microscopy, and micromorphological taxonomic details are described. Three species of lice were found in the study area and identified as Bovicola caprae, Bovicola limbatus and Linognathus africanus. Sucking and biting lice were found in ten of the 12 herds of goats examined. Lice were found on both mature goats and kids. Bovicola caprae and L. africanus were the most common biting and sucking lice respectively in all herds examined. Scanning electron microscopy revealed additional features which aided in the identification of the louse species. Photomicrographs were more accurate aids to identification than the line drawings in the literature and facilitated identification using dissecting microscope.

  6. Use of scanning electron microscopy to confirm the identity of lice infesting communally grazed goat herds.

    Science.gov (United States)

    Sebei, P J; McCrindle, C M E; Green, E D; Turner, M L

    2004-06-01

    Lice have been described on goats in commercial farming systems in South Africa but not from flocks on communal grazing. During a longitudinal survey on the causes of goat kid mortality, conducted in Jericho district, North West Province, lice were collected from communally grazed indigenous goats. These lice were prepared for and viewed by scanning electron microscopy, and micro-morphological taxonomic details are described. Three species of lice were found in the study area and identified as Bovicola caprae, Bovicola limbatus and Linognathus africanus. Sucking and biting lice were found in ten of the 12 herds of goats examined. Lice were found on both mature goats and kids. Bovicola caprae and L. africanus were the most common biting and sucking lice respectively in all herds examined. Scanning electron microscopy revealed additional features which aided in the identification of the louse species. Photomicrographs were more accurate aids to identification than the line drawings in the literature and facilitated identification using dissecting microscope.

  7. Minimally invasive treatment for pubic ramus fractures combined with a sacroiliac joint complex injury.

    Science.gov (United States)

    Yu, Xiaowei; Tang, Mingjie; Zhou, Zubin; Peng, Xiaochun; Wu, Tianyi; Sun, Yuqiang

    2013-08-01

    Fractures of the pubic rami due to low energy trauma are common in the elderly, with an incidence of 26 per 100,000 people per year in those aged more than 60 years. The purpose of this study was to evaluate the clinical application of this minimally invasive technique in patients with pubic ramus fractures combined with a sacroiliac joint complex injury, including its feasibility, merits, and limitations. Fifteen patients with pubic ramus fractures combined with sacroiliac joint injury were treated with the minimally invasive technique from June 2008 until April 2012. The quality of fracture reduction was evaluated according to the Matta standard. Fourteen cases were excellent (93.3 %), and one case was good (6.7 %). The fracture lines were healed 12 weeks after the surgery. The 15 patients had follow-up visits between four to 50 months (mean, 22.47 months). All patients returned to their pre-injury jobs and lifestyles. One patient suffered a deep vein thrombosis during the peri-operative period. A filter was placed in the patient before the surgery and was removed six weeks later. There was no thrombus found at the follow-up visits of this patient. The minimally invasive technique in patients with pubic ramus fractures combined with a sacroiliac joint complex injury provided satisfactory efficacy.

  8. Three-dimensional finite element models of the human pubic symphysis with viscohyperelastic soft tissues.

    Science.gov (United States)

    Li, Zuoping; Alonso, Jorge E; Kim, Jong-Eun; Davidson, James S; Etheridge, Brandon S; Eberhardt, Alan W

    2006-09-01

    Three-dimensional finite element (FE) models of human pubic symphyses were constructed from computed tomography image data of one male and one female cadaver pelvis. The pubic bones, interpubic fibrocartilaginous disc and four pubic ligaments were segmented semi-automatically and meshed with hexahedral elements using automatic mesh generation schemes. A two-term viscoelastic Prony series, determined by curve fitting results of compressive creep experiments, was used to model the rate-dependent effects of the interpubic disc and the pubic ligaments. Three-parameter Mooney-Rivlin material coefficients were calculated for the discs using a heuristic FE approach based on average experimental joint compression data. Similarly, a transversely isotropic hyperelastic material model was applied to the ligaments to capture average tensile responses. Linear elastic isotropic properties were assigned to bone. The applicability of the resulting models was tested in bending simulations in four directions and in tensile tests of varying load rates. The model-predicted results correlated reasonably with the joint bending stiffnesses and rate-dependent tensile responses measured in experiments, supporting the validity of the estimated material coefficients and overall modeling approach. This study represents an important and necessary step in the eventual development of biofidelic pelvis models to investigate symphysis response under high-energy impact conditions, such as motor vehicle collisions.

  9. The effect of dynamic femoroacetabular impingement on pubic symphysis motion: a cadaveric study.

    Science.gov (United States)

    Birmingham, Patrick M; Kelly, Bryan T; Jacobs, Robert; McGrady, Linda; Wang, Mei

    2012-05-01

    A link between femoroacetabular impingement and athletic pubalgia has been reported clinically. One proposed origin of athletic pubalgia is secondary to repetitive loading of the pubic symphysis, leading to instability and parasymphyseal tendon and ligament injury. Hypothesis/ The purpose of this study was to investigate the effect of simulated femoral-based femoroacetabular impingement on rotational motion at the pubic symphysis. The authors hypothesize that the presence of a cam lesion leads to increased relative symphyseal motion. Controlled laboratory study. Twelve hips from 6 fresh-frozen human cadaveric pelvises were used to simulate cam-type femoroacetabular impingement. The hips were held in a custom jig and maximally internally rotated at 90° of flexion and neutral adduction. Three-dimensional motion of the pubic symphysis was measured by a motion-tracking system for 2 states: native and simulated cam. Load-displacement plots were generated between the internal rotational torque applied to the hip and the responding motion in 3 anatomic planes of the pubic symphysis. As the hip was internally rotated, the motion at the pubic symphysis increased proportionally with the degrees of the rotation as well as the applied torque measured at the distal femur for both states. The primary rotation of the symphysis was in the transverse plane and on average accounted for more than 60% of the total rotation. This primary motion caused the anterior aspect of the symphyseal joint to open or widen, whereas the posterior aspect narrowed. At the torque level of 18.0 N·m, the mean transverse rotation in degrees was 0.89° ± 0.35° for the native state and 1.20° ± 0.41° for cam state. The difference between cam and the native groups was statistically significant (P pubalgia.

  10. Pubic contouring after massive weight loss in men and women: correction of hidden penis, mons ptosis, and labia majora enlargement.

    Science.gov (United States)

    Alter, Gary J

    2012-10-01

    Weight gain and subsequent weight loss usually result in unsightly large fat deposition in the pubic areas along with ptosis of the fat pad and skin. Men also complain of burying of the penis and the woman complains of labia majora enlargement, both causing secondary sexual dysfunction, hygiene issues, discomfort, and aesthetic concerns. Even with weight loss, most of these deformities persist. The hidden (buried) penis is characterized by a lack of firm attachments between the Buck fascia surrounding the tunica albuginea of the corpora and the dartos fascia and skin. Successful treatment requires the penile skin and dartos fascia to be stabilized to the penile corporal bodies to make the penis one integrated unit. The method of surgery is usually to excise and lift excess pubic skin, eliminate the pubic fat without creating a significant pubic concavity, and stabilize the penile skin to the corporal bodies with tacking sutures dorsally and ventrally. If inadequate penile skin is present, scrotal flaps or skin grafts are used to cover the penis. Treatment of the mons pubis requires similar pubic lifting, fat excision, and pubic tacking. Labia majora reduction requires skin and usually fat excision. Results are excellent with the use of these techniques. Pubic contouring after massive weight loss in men and women is very successful and safe if performed meticulously. Treatment improves self-esteem along with the associated physical and aesthetic deformities.

  11. Pediculose nos centros de educação infantil: conhecimentos e práticas dos trabalhadores Infestión de piojos en los centros de educación infantil: conocimientos y prácticas de los trabajadores Pediculosis in children attending day care centers: knowledge and practice of workers

    Directory of Open Access Journals (Sweden)

    Flávia Lopes Gabani

    2010-06-01

    ún son limitadas. Persisten muchos mitos y tabúes (que los piojos saltan, el uso de la sal, del vinagre y de la parafina, etc. Las principales dudas se relacionan con el tratamiento y la mayor dificultad que se presenta es la falta de cooperación de los padres. Por último, cabe señalar la necesidad y la importancia de que se implementen acciones intersectoriales, preventivas y sistemáticas en el ambiente escolar.This study aimed to identify and analyze knowledge and practices, about pediculosis, from employees at Child Day Care Centers at two areas of coverage of the Family Health Units, Londrina, Paraná. It's descriptive transversal study. Form was applied with questions about myths, taboos, practices, doubts and difficulties in stopping the infestation of pediculosis in eight Child Day Care Centers. Subsequently, workshop was held with educational materials. 60.4% of employees participated, those who were present on the day determined by the institution. Almost all indicated the ectoparasitic infestation, as well as their families. The problem is faced daily in Child Day Care Centers (72.1%. Practice appropriate care is still limited. Many myths and taboos persist (lice jump, use salt, vinegar and kerosene, etc. The main questions are related to treatment and the greatest difficulty is the lack of cooperation from parents. It emphasizes, finally, the need and the importance of internal actions, preventive and systematic in the school environment.

  12. Genetic recombination events between sympatric Clade A and Clade C lice in Africa.

    Science.gov (United States)

    Veracx, Aurélie; Boutellis, Amina; Raoult, Didier

    2013-09-01

    Human head and body lice have been classified into three phylogenetic clades (Clades A, B, and C) based on mitochondrial DNA. Based on nuclear markers (the 18S rRNA gene and the PM2 spacer), two genotypes of Clade A head and body lice, including one that is specifically African (Clade A2), have been described. In this study, we sequenced the PM2 spacer of Clade C head lice from Ethiopia and compared these sequences with sequences from previous works. Trees were drawn, and an analysis of genetic diversity based on the cytochrome b gene and the PM2 spacer was performed for African and non-African lice. In the tree drawn based on the PM2 spacer, the African and non-African lice formed separate clusters. However, Clade C lice from Ethiopia were placed within the African Clade A subcluster (Clade A2). This result suggests that recombination events have occurred between Clade A2 lice and Clade C lice, reflecting the sympatric nature of African lice. Finally, the PM2 spacer and cytochrome b gene sequences of human lice revealed a higher level of genetic diversity in Africa than in other regions.

  13. Chewing lice from wild birds in northern Greece.

    Science.gov (United States)

    Diakou, Anastasia; Pedroso Couto Soares, José Bernardo; Alivizatos, Haralambos; Panagiotopoulou, Maria; Kazantzidis, Savas; Literák, Ivan; Sychra, Oldřich

    2017-10-01

    Greece represents an important area for wild birds due to its geographical position and habitat diversity. Although the bird species in Greece are well recorded, the information about the chewing lice that infest them is practically non-existent. Thus, the aim of the present study was to record the species of lice infesting wild birds in northern Greece and furthermore, to associate the infestation prevalence with factors such as the age, sex, migration and social behaviour of the host as well as the time of the year. In total 729 birds, (belonging to 9 orders, 32 families and 68 species) were examined in 7 localities of northern Greece, during 9 ringing sessions from June 2013 until October 2015. Eighty (11%) of the birds were found to be infested with lice. In 31 different bird species, 560 specimens of lice, belonging to 33 species were recorded. Mixed infestations were recorded in 11 cases where birds were infested with 2-3 different lice species. Four new host-parasite associations were recorded i.e. Menacanthus curuccae from Acrocephalus melanopogon, Menacanthus agilis from Cettia cetti, Myrsidea sp. from Acrocephalus schoenobaenus, and Philopretus citrinellae from Spinus spinus. Moreover, Menacanthus sinuatus was detected on Poecile lugubris, rendering this report the first record of louse infestation in this bird species. The statistical analysis of the data collected showed no association between parasitological parameters (prevalence, mean and median intensity and mean abundance) in two different periods of the year (breeding vs post-breeding season). However, there was a statistically significant difference in the prevalence of infestation between a) migrating and sedentary passerine birds (7.4% vs 13.2%), b) colonial and territorial birds (54.5% vs 9.6%), and c) female and male birds in breeding period (2.6% vs 15.6%). Copyright © 2017. Published by Elsevier B.V.

  14. Intra-operative pubic arch interference during prostate seed brachytherapy in patients with CT-based pubic arch interference of ≤1 cm

    International Nuclear Information System (INIS)

    Sejpal, Samir V.; Sathiaseelan, Vythialingam; Helenowski, Irene B.; Kozlowski, James M.; Carter, Michael F.; Nadler, Robert B.; Dalton, Daniel P.; McVary, Kevin T.; Lin, William W.; Garnett, John E.; Kalapurakal, John A.

    2009-01-01

    Purpose: There are only a few reports on the frequency of intra-operative pubic arch interference (I-PAI) during prostate seed brachytherapy (PB). Materials and methods: Two hundred and forty-three patients with a CT-based pubic arch interference (PAI) of ≤1 cm and a prostate volume of ≤50-60 cc underwent PB. Those patients requiring needle repositioning by ≥0.5 cm on the template were scored as having I-PAI. The incidence of I-PAI and its impact on biochemical control were analyzed. Results: Intra-operative PAI was encountered in 47 (19.3%) patients. Forty two patients (17.3%) had I-PAI in 1-2 needles, two (0.8%) had I-PAI in four needles and three patients (1.2%) had I-PAI in six needles. Overall, 1.4% of needles required repositioning due to I-PAI. BMI > 27 kg/m 2 and wider (>75 mm) pubic bone separation at mid ramus (PS-ML) were associated with a lower incidence of I-PAI. At a median follow-up of 50.1 months, the 3- and 5-year bPFS was 97.3% and 95.2%, respectively. The 5-year bPFS rates for patients with and without I-PAI were 95.6% and 95%, respectively (p = 0.28). Conclusions: The use of CT-based PAI of ≤1 cm as a selection criterion for PB is a simple and reliable method for minimizing the incidence of I-PAI and maintaining excellent biochemical control rates.

  15. Why infest the loved ones--inherent human behaviour indicates former mutualism with head lice.

    Science.gov (United States)

    Rózsa, Lajos; Apari, Péter

    2012-05-01

    Head lice transmit to new hosts when people lean their heads together. Humans frequently touch their heads to express friendship or love, while this behaviour is absent in apes. We hypothesize that this behaviour was adaptive because it enabled people to acquire head lice infestations as early as possible to provoke an immune response effective against both head lice and body lice throughout the subsequent periods of their life. This cross-immunity could provide some defence against the body-louse-borne lethal diseases like epidemic typhus, trench fever, relapsing fever and the classical plague. Thus the human 'touching heads' behaviour probably acts as an inherent and unconscious 'vaccination' against body lice to reduce the threat exposed by the pathogens they may transmit. Recently, the eradication of body-louse-borne diseases rendered the transmission of head lice a maladaptive, though still widespread, behaviour in developed societies.

  16. The pyramidalis-anterior pubic ligament-adductor longus complex (PLAC) and its role with adductor injuries

    DEFF Research Database (Denmark)

    Schilders, Ernest; Bharam, Srino; Golan, Elan

    2017-01-01

    cadavers. The dimensions of the pyramidalis muscle were measured and anatomical connections with adductor longus, rectus abdominis and aponeuroses examined. RESULTS: The pyramidalis is the only abdominal muscle anterior to the pubic bone and was found bilaterally in all specimens. It arises from the pubic...... is to systematically investigate the pyramidalis muscle and its anatomical connections with adductor longus and rectus abdominis, to elucidate injury patterns occurring with adductor avulsions. METHODS: A layered dissection of the soft tissues of the anterior symphyseal area was performed on seven fresh-frozen male...... the pyramidalis muscle and adductor longus tendon via the anterior pubic ligament, and it introduces the new anatomical concept of the pyramidalis-anterior pubic ligament-adductor longus complex (PLAC). Knowledge of these anatomical relationships should be employed to aid in image interpretation and treatment...

  17. Fatigue stress fractures of the pubic ramus in the army: imaging features with radiographic, scintigraphic and MR imaging findings

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Sang Woo; Lee, Chang Hyun [The Armed Forces Capital Hospital, Seongnam (Korea, Republic of)

    2005-03-15

    Although fatigue fractures are not unusual in athletes and military personnel those of the pubic ramus are rare. We report three cases of fatigue fractures of the inferior pubic rami in two male recruits and one female military cadet. On the initial radiograph, most of the lesions were subtle and easy to overlook. However, bone scintigraphy provided more distinct images that allowed easy and early detection of lesion, and MR imaging presented more diagnostic information, which allowed a precise diagnosis.

  18. Pubic apophysitis: a previously undescribed clinical entity of groin pain in athletes.

    Science.gov (United States)

    Sailly, Matthieu; Whiteley, Rod; Read, John W; Giuffre, Bruno; Johnson, Amanda; Hölmich, Per

    2015-06-01

    Sport-related pubalgia is often a diagnostic challenge in elite athletes. While scientific attention has focused on adults, there is little data on adolescents. Cadaveric and imaging studies identify a secondary ossification centre located along the anteromedial corner of pubis beneath the insertions of symphysial joint capsule and adductor longus tendon. Little is known about this apophysis and its response to chronic stress. We report pubic apophysitis as a clinically relevant entity in adolescent athletes. The clinical and imaging findings in 26 highly trained adolescent football players (15.6 years ± 1.3) who complained of adductor-related groin pain were reviewed. The imaging features (X-ray 26/26, US 9/26, MRI 11/26, CT 7/26) of the pubic apophyses in this symptomatic group were compared against those of a comparison group of 31 male patients (age range 9-30 years) with no known history of groin pain or pelvic trauma, who underwent pelvic CT scans for unrelated medical reasons. All symptomatic subjects presented with similar history and physical findings. The CT scans of these patients demonstrated open pubic apophyses with stress-related physeal changes (widening, asymmetry and small rounded cyst-like expansions) that were not observed in the comparison group. No comparison subject demonstrated apophyseal maturity before 21 years of age, and immaturity was seen up to the age of 26 years. This retrospective case series identifies pubic apophyseal stress (or 'apophysitis') as an important differential consideration in the adolescent athlete who presents with groin pain. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  19. The role of pubic symphyseal CT arthrography in the imaging of athletic pubalgia.

    Science.gov (United States)

    McArthur, Tatum A; Narducci, Carl A; Lopez-Ben, Robert R

    2014-11-01

    The purpose of this article is to describe the results of pubic symphyseal CT arthrography compared with MRI in patients with suspected athletic pubalgia. In this study, two musculoskeletal radiologists retrospectively searched our department's PACS to identify patients who had undergone CT-guided injection with concurrent pubic symphyseal CT arthrography for evaluation and treatment of groin pain, sports hernia, or athletic pubalgia over a 5.5-year period (January 1, 2007-July 1, 2012). The MR and CT arthrography images and reports, clinical findings at presentation, pain response to injection, and operative findings were reviewed using the electronic medical record. Twelve patients underwent CT-guided injection and pubic symphyseal CT arthrography at our institution during the 5.5-year study period. Nine of the 12 patients had undergone MRI before the procedure. In two of the three patients who had not undergone MRI, CT arthrography revealed secondary clefts. Three of four patients who had secondary clefts on MRI had contrast extravasation reproducing the cleft at CT. Three patients had MRI findings suggestive of athletic pubalgia without MRI evidence of a secondary cleft; in all three of these patients, CT arthrography showed a secondary cleft. In four patients, CT arthrography revealed tendon tears at the adductor origin that were not apparent on MRI. All 12 patients reported decreased groin pain after injection. Pubic symphyseal CT arthrography is a useful technique for the diagnosis and short-term pain relief of athletic pubalgia. It can be used to identify secondary clefts and to detect tendon tears that can potentially be overlooked on MRI.

  20. Risky business: is pubic hair removal by women associated with body image and sexual health?

    Science.gov (United States)

    Grossman, Stephanie L; Annunziato, Rachel A

    2018-04-30

    Background: Body hair removal is a behaviour that has become normative among women in Westernised cultures, and is presented by the media as the feminine ideal, despite being painful and a potential cause of infection. Of concern, removal may be part of a more global pattern of appearance dissatisfaction and risky sexual behaviour. The aim of the present study was to examine the relationships among pubic hair removal, body image and sexual health indicators. Methods: Women (n=264; Mage=33.82, s.d.=11.13, range=18-66) completed self-report questionnaires assessing these constructs, including an assessment of body hair removal practices. Results: Greater appearance concerns (as measured by thin-ideal internalisation, appearance investment and self-objectification) and sexual health indicators (i.e. less condom use self-efficacy when a partner disapproves of condom use) all predicted greater importance of reasons for pubic hair removal (R2=0.315, F(8184)=9.97, Pwomen who removed a greater amount of hair reported more thin-ideal internalisation and appearance investment than those who removed less hair. Conclusions: Women who express stronger reasoning for pubic hair removal, and remove a larger amount of it, may endorse problematic beliefs and behaviours particularly related to appearance concerns. It is important for practitioners to consider this practice as distinct from grooming and to be aware of its association with a broader array of risky beliefs and behaviours that can compromise women's well-being.

  1. Effect of pubic bone marrow edema on recovery from endoscopic surgery for athletic pubalgia.

    Science.gov (United States)

    Kuikka, L; Hermunen, H; Paajanen, H

    2015-02-01

    Athletic pubalgia (sportsman's hernia) is often repaired by surgery. The presence of pubic bone marrow edema (BME) in magnetic resonance imaging (MRI) may effect on the outcome of surgery. Surgical treatment of 30 patients with athletic pubalgia was performed by placement of totally extraperitoneal endoscopic mesh behind the painful groin area. The presence of pre-operative BME was graded from 0 to 3 using MRI and correlated to post-operative pain scores and recovery to sports activity 2 years after operation. The operated athletes participated in our previous prospective randomized study. The athletes with (n = 21) or without (n = 9) pubic BME had similar patients' characteristics and pain scores before surgery. Periostic and intraosseous edema at symphysis pubis was related to increase of post-operative pain scores only at 3 months after surgery (P = 0.03) but not to long-term recovery. Two years after surgery, three athletes in the BME group and three in the normal MRI group needed occasionally pain medication for chronic groin pain, and 87% were playing at the same level as before surgery. This study indicates that the presence of pubic BME had no remarkable long-term effect on recovery from endoscopic surgical treatment of athletic pubalgia. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  2. Chewing Lice of Swan Geese (Anser cygnoides): New Host-Parasite Associations

    DEFF Research Database (Denmark)

    Choi, Chang-Yong; Takekawa, John Y.; Prosser, Diann J.

    2016-01-01

    Chewing lice (Phthiraptera) that parasitize the globally threatened swan goose Anser cygnoides have been long recognized since the early 19th century, but those records were probably biased towards sampling of captive or domestic geese due to the small population size and limited distribution...... of its wild hosts. To better understand the lice species parasitizing swan geese that are endemic to East Asia, we collected chewing lice from 14 wild geese caught at 3 lakes in northeastern Mongolia. The lice were morphologically identified as 16 Trinoton anserinum (Fabricius, 1805), 11 Ornithobius...

  3. Ecomorphology of parasite attachment: experiments with feather lice.

    Science.gov (United States)

    Bush, Sarah E; Sohn, Edward; Clayton, Dale H

    2006-02-01

    The host specificity of some parasites can be reinforced by morphological specialization for attachment to mobile hosts. For example, ectoparasites with adaptations for attaching to hosts of a particular size might not be able to remain attached to larger or smaller hosts. This hypothesis is suggested by the positive correlation documented between the body sizes of many parasites and their hosts. We adopted an ecomorphological approach to test the attachment hypothesis. We tested the ability of host-specific feather lice (Phthiraptera: Ischnocera) to attach to 6 novel species of pigeons and doves that vary in size by nearly 2 orders of magnitude. Surprisingly, Rock Pigeon lice (Columbicola columbae) remained attached equally well to all 6 novel host species. We tested the relative importance of 3 factors that could facilitate louse attachment: whole-body insertion, tarsal claw use, and mandible use. Insertion, per se, was not necessary for attachment. However, insertion on coarse feathers of large hosts allowed lice to access feather barbules with their mandibles. Mandible use was a key component of attachment regardless of feather size. Attachment constraints do not appear to reinforce host specificity in this system.

  4. Inventory of lice of mammals and farmyard chicken in North-eastern Algeria.

    Science.gov (United States)

    Meguini, Mohamed Nadir; Righi, Souad; Zeroual, Fayçal; Saidani, Khelaf; Benakhla, Ahmed

    2018-03-01

    Lice are permanent ectoparasites, extremely specific to their hosts. Their great importance in veterinary medicine remain significant, they can cause their direct pathogenic actions like irritability, dermatitis, anemia, decreased weight gain, and milk production. The purpose of this work was to made the first time an inventory of mammalian lice in North-eastern Algeria. Our survey of lice infestation was conducted on several animal species from five provinces of North-eastern Algeria. A total of 57 cattle, 83 sheep, 77 goats, 111 wild boars, and 63 farmyard chickens were examined. The collection of lice was carried out much more in mammals and chickens during the winter period. Lice were collected either manually or using brushing and kept in flasks containing 70% ethanol. The identification of lice was achieved in the laboratory using a binocular loupe. Concerning cattle, 63% and 27% of those examined subjects from Souk-Ahras and Guelma study areas, respectively, were carriers of lice. Damalinia bovis was the louse most frequently found on cattle in these two regions. Three other species were identified in Souk-Ahras: Haematopinus eurysternus (25%), Linognathus vituli (10%), and Solenopotes capillatus (5%). Regarding sheep, 39% and 24% of examined animals in Souk-Ahras and Guelma, were carrying lice. Damalinia ovis was the most frequently encountered lice on sheep in both regions. Linognathus ovillus also was identified in Souk-Ahras, representing 0.3% of the collected lice. Concerning goats, 53% and 30% of examined animals in Souk-Ahras and Guelma, were parasitized of lice. Two species of lice were found: Damalinia caprae and Linognathus africanus . For farmyard chickens, 69% and 100% of the farmyard chicken in Souk-Ahras and Mila were parasitized by lice, respectively. Menopon gallinae was the most frequently encountered louse in farmyard chicken in both regions. Eight other species were identified in Mila and four other species only in Souk-Ahras. Finally, 25

  5. Development of eggs and the planktonic stages of salmon lice (Lepeophtheirus salmonis) at low temperatures

    NARCIS (Netherlands)

    Boxaspen, Karin; Næss, Tore

    2000-01-01

    To verify if and to what extent egg and nauplii development of the salmon lice take place during winter, the development from egg to the copepodid stage at 2,3,4,5 and 10°C was examined. Newly extruded egg strings from a winter population of salmon lice were individually placed in 6 ml stagnant

  6. Survey of Permethrin and Malathion Resistance in Human Head Lice Populations from Denmark

    DEFF Research Database (Denmark)

    Kristensen, Michael; Knorr, Mette; Rasmussen, Anne-Marie

    2006-01-01

    was selected, 2 ng of permethrin and 100 ng of malathion per head louse, respectively. Head lice were collected from heads of infested children in Denmark at 33 primary schools, one kindergarten, and seven boarding schools. The lice were collected by combing of dry hair, with a fine-toothed antilouse comb...

  7. SPECIES DIVERSITY AND COMMUNITY STRUCTURE OF SUCKING LICE IN YUNNAN, CHINA

    Institute of Scientific and Technical Information of China (English)

    Xian-guoGuo; Ti-junQian; Li-junGuo; JingWang; Wen-geDong; LiZhang; Zhi-minMa; andWeiLi

    2004-01-01

    On the basis of investigating 9 counties (towns) in Yunnan Province of China, the species diversity and community structure of sucking lice on the body surface of small mammal hosts are studied in the paper. Species richness (S) is used to stand for the species diversity. The calculation of community diversity index and evenness are based on Shannon-Wiener's method. 2745 small mammals captured from the investigated sites belong to 10 families, 25 genera and 41 species in 5 orders (Rodentia, Insectivora, Scandentia, Logomorpha and Carnivora) while 18165 individuals of sucking lice collected from the body surface of the small mammal hosts are identified into 4 families, 6 genera and 22 species. The species of sucking lice are much less than the species of their hosts. Most species of small mammals have their fixed sucking lice on their body surface. One species of small mammals usually have few species of sucking lice (1 to 4 species). The close species of the hosts in the taxonomy are found to have the same or similar dominant species of sucking lice on their body surface. The results reveal that the species diversity of sucking lice on small mammals is very low with a very simple community structure. The results also imply there may be a close co-evolution relationship between the lice and the hosts.

  8. Size as indicator of origin of salmon lice Lepeophtheirus salmonis (Copepoda: Caligidae)

    NARCIS (Netherlands)

    Nordhagen, J.R.; Heuch, P.A.; Schram, T.A.

    2000-01-01

    Salmon lice Lepeophtheirus salmonis (Krøyer, 1837) from farmed Atlantic salmon have been implicated in the drastic sea trout and salmon stock declines found in Ireland and Norway. Can salmon lice from farmed and wild fish be distinguished? The hypothesis has been advanced that the treatment of

  9. [Physicians' knowledge in Israel on the biology and control of head lice].

    Science.gov (United States)

    Mumcuoglu, Kosta Y; Mumcuoglu, Michael; Danilevich, Maria; Gilead, Leon

    2008-10-01

    Health providers such as physicians, nurses and pharmacists should be knowledgeable about the biology of head lice and the ways to control them effectively, in order to reduce the proportion of children infested with head lice. To evaluate the knowledge of physicians in Israel on the biology and epidemiology of lice, as well as their experience with infested individuals and their preferences for diagnosis, prophylaxis and control. An anonymous questionnaire with 37 questions was used. The first 20 questions addressed the general knowledge of physicians on lice biology and control, while the remaining 17 questions were related to their personal experience with lice and louse treatment. Out of 273 physicians interviewed 66.8% had good knowledge of lice, while the remaining 33.2% had some knowledge on lice. The difference between the groups of physicians with medium and good knowledge on lice was borderline significant (P=0.0722), with the dermatologists borderline significantly less knowledgeable than the rest (P=0.0765). Significant differences were found between those physicians with 4-6 or 11-20 years of professional experience and the remaining groups (twice Pbiology and control was higher than male physicians (39.4% and 29.4%, respectively), the differences were borderline significant (P=0.09). Pediatricians and dermatologists examined significantly more children than family physicians and general practitioners (P control of head louse infestations.

  10. Radiographic changes of the pelvis in Labrador and Golden Retrievers after juvenile pubic symphysiodesis: objective and subjective evaluation.

    Science.gov (United States)

    Boiocchi, S; Vezzoni, L; Vezzoni, A; Bronzo, V; Rossi, F

    2013-01-01

    The hypothesis of this study was that juvenile pubic symphysiodesis (JPS) results in pelvic changes that can be identified radiographically in adult dogs. The medical records at the Clinica Veterinaria Vezzoni were searched for standard ventro-dorsal views of the pelvis of adult Labrador and Golden Retrievers that had undergone JPS or had not undergone surgery. The objective assessment of radiographs included the analysis of various pelvic measurements. Subjective evaluation of radiographs was undertaken by 18 specialists and 21 general practitioners and was based on five criteria relating to 1) the acetabular fossae, 2) the pubic symphysis, 3) the margin of the cranial pubic area, 4) the pubic rami, and 5) the obturator foramen. The radiographs of 42 Labrador Retrievers and 16 Golden Retrievers were evaluated. The most useful criteria were the radiographic measurement of the shape of the obturator foramen and two different ratios of length to width of the pubic rami; these values were significantly smaller in dogs after JPS. The pelvic canal width was the same in both groups. All objective measurements were repeatable within and between evaluators. The most reliable subjective criterion was number 4, followed by number 5 in Golden Retrievers and by 2 in Labrador Retrievers. Our objective and subjective evaluations were simple and yielded useful and repeatable results. There was no significant difference between general practitioners and specialists with regard to subjective evaluation, which indicates that these evaluation criteria can be used by small animal clinicians after minimal training.

  11. Clinical response and safety of malathion shampoo for treatment of head lice in a primary school.

    Science.gov (United States)

    Wananukul, Siriwan; Chatproedprai, Susheera; Tempark, Therdpong; Wananukul, Winai

    2011-04-01

    Help eradicate or at least alleviating head lice in a primary school with malathion shampoo and to study clinical response and safety of malathion shampoo. All students were examined by using a fine-toothed lice comb to help detect live lice. Direct visual examination and the collection of nits for microscopic examination were performed to differentiate viable nits from empty nits. Diagnosis of head lice was made by the presence of lice. All students that had lice and/or nits were treated with malathion shampoo. Malathion shampoo was also provided for all family members. Pediculocidal efficacy was by the presence or absence of live lice. Blood for red blood cell cholinesterase activity was drawn in 32 volunteers before treatment and after the second treatment. At the first visit, 629 students were examined and 48 students had live head lice. The infestation rate was 13% in girls and 1.3% in boys. The cure rate was 93% after the first treatment. The reported side effects were nausea, a burning sensation, and irritation that was found in five (4%), 10 (7%) and three (2%) students respectively. The mean of RBC cholinesterase activity before and after two applications showed significant changes (p = 0.03). It was -7.5 +/- 4.1% reduction from the initial, but all were in the normal range. There was no report of clinical manifestation of malathion toxicity. Malathion shampoo is safe and effective in the treatment of head lice. There is significant skin absorption so a scalp examination for head lice should be done before subsequent application to avoid unnecessary exposure.

  12. [Testis volume, pubic hair development and spermarcheal age in urban Chinese boys].

    Science.gov (United States)

    Hua-mei, M A

    2010-06-01

    There is a trend that puberty is starting earlier in the 21st century, which is primarily based on studies of girls. The assessment of pubertal stages in the individual child is useful only if recent and reliable reference data from the same population are available for comparison. However, nationally representative pubertal data for Chinese boys in China are lacking. The aim of this study was to investigate the current pubertal development in healthy urban Chinese boys. A cross-sectional study of the pubertal development of a sample of 19,054 urban Chinese boys aged 3 - 19.83 years was conducted between 2003 and 2005. Testicular volume was determined with a Prader orchidometer. Pubic hair development was assessed according to the Tanner method. Data on spermarche were collected by the status quo method. Probit analysis was used to calculate the median age and 95% CI for onset of testicular and pubic hair development and spermarche. A testicular volume greater than or equal to 4 ml was taken as a definite sign of the onset of puberty. Mean ages for sexual development in boys were compared with other published series, while the spermarcheal age was compared to those in the similar population of the five National Surveys on Students Constitution and Health undertaken since 1979 in China. At the age of 9 years, 12.99% of the boys had a testicular volume 4 ml or more. The median age of onset of puberty as indicated by a testicular volume of 4 ml or more was 10.55 (95% CI 10.27 - 10.79) years. The median age for onset of pubic hair development (PH(2)) and spermarche was 12.78 (95% CI 12.67 - 12.89) years and 14.05 (95%CI 13.80 - 14.32) years, respectively. There was a highly significant downward secular trend for spermarcheal age of Chinese boys since 1979. Pubertal onset as indicated by testicular development in urban Chinese boys is earlier than currently used norms. Age of testicular development is among the earliest medians recorded in the world population, while

  13. Percutaneous augmentation of the superior pubic ramus with polymethyl methacrylate: treatment of acute traumatic and chronic insufficiency fractures

    Energy Technology Data Exchange (ETDEWEB)

    Beall, Douglas P. [University of Oklahoma, Clinical Radiology of Oklahoma, Oklahoma City, OK (United States); D' Souza, Sharon L. [University of Oklahoma, Oklahoma City, OK (United States); Costello, Richard F.; Stapp, Annette M. [Clinical Radiology of Oklahoma, Edmond, OK (United States); Prater, Scott D. [University of Oklahoma College of Medicine, Edmond, OK (United States); Van Zandt, Bryan L. [University of Oklahoma College of Medicine, Oklahoma City, OK (United States); Martin, Hal D. [Oklahoma Sports Science and Orthopaedics, Oklahoma City, OK (United States)

    2007-10-15

    The injection of polymethylmethacrylate (PMMA) is a minimally invasive image-guided procedure that is typically used to treat vertebral body fractures due to osteoporosis or neoplastic involvement. The injection of PMMA into various other locations including the sacrum, acetabulum, pedicles, femur and tibia has been reported previously, and these procedures have, overall, been highly effective at alleviating pain and discomfort. Although the injection of PMMA into the vertebral body is a very common procedure that has been performed for over 2 decades for the percutaneous treatment of vertebral body fractures, the percutaneous injection of PMMA has not been reported in the English literature as treatment for superior pubic ramus fractures. We report the percutaneous treatment of an acute superior pubic ramus fracture and of a chronic insufficiency fracture of the superior pubic ramus using a parasymphyseal approach to access the region of injury. (orig.)

  14. La Triple Hélice de las TIC en Ecuador

    Directory of Open Access Journals (Sweden)

    Yolanda Esperanza Ledesma Silva

    2018-03-01

    Full Text Available Las tecnologías de la información y la comunicación (TIC contribuyen al crecimiento económico global de un país. El uso de las TIC puede ser una oportunidad para modernizar tanto la gestión de la información como la administración del sistema en los tres sectores de la economía: Gobierno, Universidad y Empresa. El problema identificado es la ausencia de literatura sobre este tema. El presente artículo tiene como objetivo contribuir a resolver este problema y responder a la pregunta: ¿Cuáles son las interrelaciones entre el gobierno, las universidades y las empresas en el uso de las TIC en Ecuador? La metodología utilizada es el modelo de la Triple Hélice, con el fin de analizar las interacciones entre los tres sectores mencionados. Entre las principales conclusiones están: La primera hélice, Gobierno-Universidad, incluye la planificación pública en materia de TIC que se caracteriza por ser vertical, centralizada y excluyente, lo cual se puede observar por la falta de participación de los actores que intervienen en la formulación de proyectos y políticas relacionadas con las TIC y su aplicación.  En la segunda hélice, Gobierno-Empresa, existe la necesidad de invertir en las TIC, especialmente en el sector rural, con el fin de motivar la participación respectiva de la empresa privada y el gobierno. La tercera hélice, Empresa-Universidad, se expresa en la necesidad de conformar una comunidad 2.0 en las universidades que contribuya a la mejora del proceso de enseñanza-aprendizaje a través de la compartición e intercambio de información relevante entre los docentes, estudiantes y su entorno.

  15. Grading Scale of Radiographic Findings in the Pubic Bone and Symphysis in Athletes

    International Nuclear Information System (INIS)

    Besjakov, J.; Scheele, C. von; Ekberg, O.; Gentz, C. F.; Westlin, N.E.

    2003-01-01

    Purpose: Radiographic abnormalities in the pubic bone and symphysis are often seen in athletes with groin pain. The aim was to create a grading scale of such radiologic changes. Material and Methods: Plain radiography of the pelvic ring including the pubic bone and the symphysis was performed in 20 male athletes, age 19-35, with long-standing uni- or bilateral groin pain. We used two control groups: Control group 1: 20 healthy age-matched men who had undergone radiologic examination of the pelvis due to trauma. Control group 2: 120 adults (66 men and 54 women) in 9 age groups between 15 and 90 years of age. These examinations were also evaluated for interobserver variance. Results and Conclusion: The grading scale was based on the type and the amount of the different changes, which were classified as follows: No bone changes (grade 0), slight bone changes (grade 1), intermediate changes (grade 2), and advanced changes (grade 3). The grading scale is easy to interpret and an otherwise troublesome communication between the radiologist and the physician was avoided. There was a high interobserver agreement with a high kappa value (0.8707). Male athletes with long-standing groin pain had abnormal bone changes in the symphysis significantly more frequently and more severely (p>0.001) than their age-matched references. In asymptomatic individuals such abnormalities increased in frequency with age both in men and women

  16. Massive Intrapelvic Hematoma after a Pubic Ramus Fracture in an Osteoporotic Patient

    Energy Technology Data Exchange (ETDEWEB)

    Haruki, Funao, E-mail: hfunao@yahoo.co.jp; Takahiro, Koyanagi [Department of Orthopaedic Surgery, Kawasaki Municipal Kawasaki Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa, 210-0013 (Japan)

    2016-03-24

    An 88-year-old female presented with a left thigh pain and dysuria. She visited our hospital 2 week after she noticed her symptoms. She stated that she might have a low-energy fall, but she could not identify the exact onset. Her radiograph of the pelvis (Figure 1) showed displaced left pubic ramus fracture. Her computed tomographic scanning of the pelvis (Figure 2) showed massive intrapelvic hematoma (axial size, 11 cm by 5 cm) around the fracture site, although she did not use any anticoagulants. Because her bone mineral density was 0.357 g/cm{sup 2}, and T score was -4.8 SD, she started a bisphosphonate therapy. She received a bed-rest physical therapy for 6 weeks, and the hematoma regressed spontaneously. She started full weight bearing after 6 weeks, and walked by a walker after 8 weeks. Although it is extremely rare to develop massive chronic intra-pelvic hematoma after a lowenergy pubic ramus fracture without any use of anticoagulants, it may occur in elderly and severely osteoporotic patient.

  17. Endometriosis of the Vermiform Appendix within a Hernia Sac Infiltrating the Pubic Bone

    Directory of Open Access Journals (Sweden)

    Damian Ziaja

    2015-01-01

    Full Text Available Purpose. Appendicular endometriosis mimicking appendicitis is a rare finding. Inguinal tumor in the course of appendicular endometriosis located within an inguinal hernia sac and infiltrating the periosteum of the pubic bone has not yet been described. Case Report. This paper describes a case of a rapidly enlarging, solid, unmovable, very painful upon palpation inguinal tumor, in a 36-year-old nulliparous woman. During surgery, a hard (approximately 4 cm in diameter tumor infiltrating the periosteum of the right pubic bone and continuous with the inguinal hernia sac was dissected. The distal segment of the vermiform appendix was an element of the dissected tumor. Histological examination revealed endometriosis of the distal vermiform appendix. After 6 months of hormone treatment, she was referred for reoperation due to tumor recurrence. Once again histological examination of the resected tissue revealed endometriosis. There was no further recurrence of the disease with goserelin therapy. In addition to the case report, we present a review of the literature about endometriosis involving the vermiform appendix and the inguinal canal (Amyand’s hernia. Conclusion. This case expands the list of differential diagnoses of nodules found in the inguinal region of women.

  18. Vertical transmission of feather lice between adult blackbirds Turdus merula and their nestlings: a lousy perspective.

    Science.gov (United States)

    Brooke, M de L

    2010-12-01

    There is limited information about the natural history of the transmission of feather lice (Phthiraptera) from parent birds to their young. This article therefore examines the transmission of 4 species of feather lice from parent blackbirds to their nestlings in an English population, and addresses questions formulated from the perspective of the lice. The lice that disperse onto the several young in the nest were mostly found on the larger chicks, those with higher survival prospects. The lice dispersing to chicks were overwhelmingly nymphs, which cannot be sexed morphologically, and so the prediction that the adult lice dispersing would be disproportionately female, potential founders of a new population, was only supported for the most numerous species, Brueelia merulensis. There was no evidence that louse dispersal to chicks was density dependent and more likely when the parents were more heavily infested. Finally, I predicted that lice might aggregate on female blackbirds, which undertake more brooding, to increase their chance of transmission to nestlings. For 1 louse species, B. merulensis, prevalence, but not louse intensity, was higher on female than male blackbirds. For 2 other louse species, Philopterus turdi and Menacanthus eurysternus, no differences between male and female blackbirds were detected.

  19. Synergistic activity of antibiotics combined with ivermectin to kill body lice.

    Science.gov (United States)

    Sangaré, Abdoul Karim; Rolain, Jean Marc; Gaudart, Jean; Weber, Pascal; Raoult, Didier

    2016-03-01

    Ivermectin and doxycycline have been found to be independently effective in killing body lice. In this study, 450 body lice were artificially fed on a Parafilm™ membrane with human blood associated with antibiotics (doxycycline, erythromycin, rifampicin and azithromycin) alone and in combination with ivermectin. Fluorescence in situ hybridisation and spectral deconvolution were performed to evaluate bacterial transcriptional activity following antibiotic intake by the lice. In the first series, a lethal effect of antibiotics on lice was observed compared with the control group at 18 days (log-rank test, P≤10(-3)), with a significant difference between groups in the production of nits (P=0.019, Kruskal-Wallis test). A high lethal effect of ivermectin alone (50ng/mL) was observed compared with the control group (log-rank test, P≤10(-3)). Fluorescence of bacteriocytes in lice treated with 20μg/mL doxycycline was lower than in untreated lice (PKruskal-Wallis test). In the second series with antibiotic-ivermectin combinations, a synergistic lethal effect on treated lice (log-rank test, PKruskal-Wallis test). Additionally, survival of lice in the combination treatment groups compared with ivermectin alone was significant (log-rank test, P=0.0008). These data demonstrate that the synergistic effect of combinations of antibiotics and ivermectin could be used to achieve complete eradication of lice and to avoid selection of a resistant louse population. Copyright © 2016 Elsevier B.V. and the International Society of Chemotherapy. All rights reserved.

  20. Rates of genomic divergence in humans, chimpanzees and their lice.

    Science.gov (United States)

    Johnson, Kevin P; Allen, Julie M; Olds, Brett P; Mugisha, Lawrence; Reed, David L; Paige, Ken N; Pittendrigh, Barry R

    2014-02-22

    The rate of DNA mutation and divergence is highly variable across the tree of life. However, the reasons underlying this variation are not well understood. Comparing the rates of genetic changes between hosts and parasite lineages that diverged at the same time is one way to begin to understand differences in genetic mutation and substitution rates. Such studies have indicated that the rate of genetic divergence in parasites is often faster than that of their hosts when comparing single genes. However, the variation in this relative rate of molecular evolution across different genes in the genome is unknown. We compared the rate of DNA sequence divergence between humans, chimpanzees and their ectoparasitic lice for 1534 protein-coding genes across their genomes. The rate of DNA substitution in these orthologous genes was on average 14 times faster for lice than for humans and chimpanzees. In addition, these rates were positively correlated across genes. Because this correlation only occurred for substitutions that changed the amino acid, this pattern is probably produced by similar functional constraints across the same genes in humans, chimpanzees and their ectoparasites.

  1. Incidence and prevalence of head lice in a district health authority area.

    Science.gov (United States)

    Harris, J; Crawshaw, J G; Millership, S

    2003-09-01

    There are very few recent studies of the incidence and prevalence of head lice in the UK. A population-based questionnaire survey was carried out in a district health authority area. Two hundred and four of 235 primary schools (87%) agreed to participate. A total of 21,556 of 43,889 (49%) questionnaires were returned by parents. Overall 438 children had head lice at the time of the survey, giving a prevalence of 2.03%; 8,059 had had lice at some time in the last year giving an annual incidence of 37.4%.

  2. A field efficacy evaluation of emamectin benzoate for the control of sea lice on Atlantic salmon.

    Science.gov (United States)

    Armstrong, R; MacPhee, D; Katz, T; Endris, R

    2000-08-01

    This study evaluated the efficacy of emamectin benzoate, 0.2% aquaculture premix, against sea lice on Atlantic salmon in eastern Canada. Salmon pens received either emamectin benzoate, orally, in feed at 50 micrograms/kg body weight/day for 7 consecutive days, or the same diet with no added medication. The site veterinarian had the option of administering a bath treatment with azamethiphos to any pen in the trial. The mean number of lice per fish was lower (P emamectin benzoate was palatable and highly effective for control of sea lice on salmon.

  3. Double breasting of bladder neck and posterior urethra for continence in isolated peno-pubic epispadias.

    Science.gov (United States)

    Bhat, Amilal; Upadhayay, Ravi; Bhat, Mahakshit; Kumar, Rajiv; Kumar, Vinay

    2015-05-01

    The objectives of surgical repair of epispadias include the achievement of urinary continence, cosmetically acceptable genitalia with correction of curvature and normal genital function. To achieve all the aforementioned objectives, patients usually undergo two- or multiple-stage surgeries. Traditionally, the patients undergo epispadias repair in the first stage through modified Cantwell-Ransley or Mitchell-Bagli procedure. Subsequently, in the second stage, bladder neck repair is performed to achieve continence, the most common procedure being modified Young-Dees-Leadbetter. There is no reported single-stage technique of epispadias repair achieving both cosmesis and continence in isolated incontinent epispadias. The objectives of the study were to assess continence and cosmesis with partial penile disassemble and double breasting of bladder neck and posterior urethra in isolated peno-pubic epispadias. A retrospective analysis of surgical outcome of seven cases of primary isolated incontinent peno-pubic epispadias repair from July 2008 to July 2012 was carried out. Patients' age varied from 10 months to 16 years. Penile de-gloving is done with mobilization of urethral plate from ventrum to dorsum, distally till mid-glans and proximally up to pubic symphysis with preservation of blood supply at both ends. Partial mobilization of corporal bodies from its attachment and division of peno-pubic ligament are done to lengthen the penis. A mucosal strip of 5-7 mm is excised to denude the mucosa for double breasting. Tubularization of urethral plate with double breasting from the region of bladder neck to posterior urethra is done to increase the outlet resistance and then tubularization of distal urethral plate. Approximation of mobilized pelvic floor muscles is done to complete sphincteroplasty. Spongioplasty along the entire length and corporoplasty with medial rotation of corporeal bodies is done. Glanuloplasty with meatoplasty is done to bring the meatus ventrally and

  4. Bird Lice (Mallophaga, Philopteridae, Menoponidae of Domestic Pigeons on Specialized Pigeon Breeding Farms in Poltava

    Directory of Open Access Journals (Sweden)

    Kolomak I. O.

    2017-12-01

    Full Text Available The species composition of pigeon lice parasitic on pigeons of ornamental breeds on the specialized closed-type farm (Poltava was studied. Five species of these ectoparasites were registered: Columbicola columbae Linnaeus, 1758, Campanulotes compar Burmeister, 1838, (Philopteridae, Ischnocera, Bonomiella columbae Emerson, 1957, Hohorstiella lata Piaget, 1880 and Neocolpocephalus turbinatum (Denny, 1842 (Menoponidae, Amblycera. For each species, the data on infection prevalence, intensity and abundance were obtained. High prevalence of infection was registered for all pigeon lice species, while the intensity and, especially, the abundance were considerably different. C. columbae turned out to be the most abundant. B. columbae was rather common. The peculiarities of pigeon lice species localization on the host body were investigated. During the intensive infection of pigeons with lice, the complex of clinical signs is manifested, which testifies about considerable effect of these parasites on the host. The highest pathogenicity is characteristic for H. lata, which usually feeds on blood and lymph.

  5. Understanding and Managing Head Lice | NIH MedlinePlus the Magazine

    Science.gov (United States)

    ... to share hats, combs, or brushes with others. Policies regarding school attendance for children with head lice vary. Sources: National Library of Medicine, Centers for Disease Control and Prevention, ...

  6. Identification of individual adult female Javan lutungs (Trachypithecus auratus sondaicus) by using patterns of dark pigmentation in the pubic area.

    Science.gov (United States)

    Tsuji, Yamato; Widayati, Kanthi Arum; Hadi, Islamul; Suryobroto, Bambang; Watanabe, Kunio

    2013-01-01

    In a series of field surveys of wild Javan lutungs (Trachypithecus auratus sondaicus) conducted at Pangandaran Nature Reserve in West Java, Indonesia, from 2011 to 2012, we tried to use a method of individual identification by using individual-specific patterns of dark pigmentation in the pubic area. During the 2011 dry season, we used a digital SLR camera with a 400-mm telephoto lens to photograph the pubic area of each individual of a habituated group. These photographs were the basis for identifying 14 different adult females. During the rainy season of 2011 and the dry season of 2012, we checked the presence/absence of each of the identified individuals and found that these patterns were stable, at least during our study period. We found that two adult females and one adult female disappeared from the subject group between the first and second and between the second and third surveys, respectively, and that one adult female gave birth between the first and second surveys, but the infant had disappeared from the group between the second and third surveys. We could not confirm the validity of the method for juvenile females because of the dense white hair in their pubic areas and the fact that few individuals had clear patterns. Furthermore, we could not use this method for males because of the lack of pigmentation in the pubic area. As patterns of pigmentation in the pubic area are known to be present in other Trachypithecus species, our method can be useful for identification of individual adult females of these species, on which few individual-based behavioral studies have been conducted. Collecting individual-based behavioral data would enable us to track the presence of individuals in groups or movements between groups; determine the effects of social rank and age on within-group competition and copulation; and examine population data.

  7. A Study of Fish Lice (Argulus Sp.) Infection in Freshwater Food Fish

    OpenAIRE

    Aalberg K.; Koščová L.; Šmiga Ľ.; Košuth P.; Koščo J.; Oros M.; Barčák D.; Lazar P.

    2016-01-01

    Argulus sp., commonly referred to as fish lice, are crustacean ectoparasites of fishes. The hematophagous parasites attach to and feed off the integument of their hosts. Outbreaks of epizootics have been reported worldwide, causing mass mortalities and having serious economic implications for fish farms and culture efforts. Argulus fish lice may also serve as vectors of infectious diseases and as intermediate hosts of other parasites. Two native European species, A. foliaceus and A. coregoni,...

  8. The Effect of Educational Program on the Prevention of Pediculosis in Primary School Fifth Grade Students: An application of the Health Belief Model

    Directory of Open Access Journals (Sweden)

    Abbasali Dehghani Tafti

    2018-04-01

    Conclusion: Considering that both constructs of self-efficacy and perceived benefits were behavior predictors and the educational program led to improve the attitude and behavior of students, health-based and belief-based programs can be implemented based on these two constructs to improve students' performance in lice preventive behaviors.

  9. Effect of heavy training in contact sports on MRI findings in the pubic region of asymptomatic competitive athletes compared with non-athlete controls

    Energy Technology Data Exchange (ETDEWEB)

    Paajanen, Hannu [Kuopio University Hospital, Department of Surgery, Kuopio (Finland); Hermunen, Heikki; Karonen, Jari [Central Hospital of Mikkeli, Department of Radiology, Mikkeli (Finland)

    2011-01-15

    Bone marrow edema (BME) at the pubic symphysis on magnetic resonance imaging (MRI) is usually associated with groin pain and stress injury of the pubic bone. Little is known of the pubic MR imaging findings of asymptomatic heavy training athletes in contact sports. Pelvic MRI of male asymptomatic soccer (n = 10), ice hockey (n = 10), bandy (n = 10) and female floor-ball players (n = 10) were compared with non-athlete controls (10 males, 10 females) without groin pain to analyse the presence of BME (on a four-point scale). To study the possible changes of BME directly following heavy physical activity, 10 bandy players underwent MRI before and immediately after a 2-h training session. Magnetic resonance imaging showed minimal BME (grade 1) at the pubic symphysis in 19 of the 40 athletes (48%). Two soccer and 2 ice hockey players (20%) had moderate grade 2 pubic edema, but severe grade 3 BME findings were not found. Also 10 out of 20 (50%) of controls had grade 1 BME. The extent of increased signal was equally distributed in the asymptomatic athletes of different contact sports and controls. A heavy 2-h training session did not cause any enhanced signal at the pubic symphysis. This study indicates that the presence of grade 1 pubic BME was a frequent finding in contact sports and comparable to that in non-athletes. Grade 2 BME was found only in asymptomatic athletes undergoing heavy training. (orig.)

  10. Effect of heavy training in contact sports on MRI findings in the pubic region of asymptomatic competitive athletes compared with non-athlete controls

    International Nuclear Information System (INIS)

    Paajanen, Hannu; Hermunen, Heikki; Karonen, Jari

    2011-01-01

    Bone marrow edema (BME) at the pubic symphysis on magnetic resonance imaging (MRI) is usually associated with groin pain and stress injury of the pubic bone. Little is known of the pubic MR imaging findings of asymptomatic heavy training athletes in contact sports. Pelvic MRI of male asymptomatic soccer (n = 10), ice hockey (n = 10), bandy (n = 10) and female floor-ball players (n = 10) were compared with non-athlete controls (10 males, 10 females) without groin pain to analyse the presence of BME (on a four-point scale). To study the possible changes of BME directly following heavy physical activity, 10 bandy players underwent MRI before and immediately after a 2-h training session. Magnetic resonance imaging showed minimal BME (grade 1) at the pubic symphysis in 19 of the 40 athletes (48%). Two soccer and 2 ice hockey players (20%) had moderate grade 2 pubic edema, but severe grade 3 BME findings were not found. Also 10 out of 20 (50%) of controls had grade 1 BME. The extent of increased signal was equally distributed in the asymptomatic athletes of different contact sports and controls. A heavy 2-h training session did not cause any enhanced signal at the pubic symphysis. This study indicates that the presence of grade 1 pubic BME was a frequent finding in contact sports and comparable to that in non-athletes. Grade 2 BME was found only in asymptomatic athletes undergoing heavy training. (orig.)

  11. High Ancient Genetic Diversity of Human Lice, Pediculus humanus, from Israel Reveals New Insights into the Origin of Clade B Lice.

    Science.gov (United States)

    Amanzougaghene, Nadia; Mumcuoglu, Kosta Y; Fenollar, Florence; Alfi, Shir; Yesilyurt, Gonca; Raoult, Didier; Mediannikov, Oleg

    2016-01-01

    The human head louse, Pediculus humanus capitis, is subdivided into several significantly divergent mitochondrial haplogroups, each with particular geographical distributions. Historically, they are among the oldest human parasites, representing an excellent marker for tracking older events in human evolutionary history. In this study, ancient DNA analysis using real-time polymerase chain reaction (qPCR), combined with conventional PCR, was applied to the remains of twenty-four ancient head lice and their eggs from the Roman period which were recovered from Israel. The lice and eggs were found in three combs, one of which was recovered from archaeological excavations in the Hatzeva area of the Judean desert, and two of which found in Moa, in the Arava region, close to the Dead Sea. Results show that the head lice remains dating approximately to 2,000 years old have a cytb haplogroup A, which is worldwide in distribution, and haplogroup B, which has thus far only been found in contemporary lice from America, Europe, Australia and, most recently, Africa. More specifically, this haplogroup B has a B36 haplotype, the most common among B haplogroups, and has been present in America for at least 4,000 years. The present findings confirm that clade B lice existed, at least in the Middle East, prior to contacts between Native Americans and Europeans. These results support a Middle Eastern origin for clade B followed by its introduction into the New World with the early peoples. Lastly, the presence of Acinetobacter baumannii DNA was demonstrated by qPCR and sequencing in four head lice remains belonging to clade A.

  12. New records and a new species of chewing lice (Phthiraptera, Amblycera, Ischnocera found on Columbidae (Columbiformes in Pakistan

    Directory of Open Access Journals (Sweden)

    Saima Naz

    2012-03-01

    Full Text Available The chewing lice (Phthiraptera of Columbidae (Columbiformes from Pakistan are studied. Six species of chewing lice with new host records are recorded and one new species of the genus Colpocephalum is described from Columba livia in the Karachi region. All the columbid chewing lice from Pakistan are keyed out and the new species is illustrated and compared with the closest allied species.

  13. A Comparison of Sacroiliac and Pubic Rami Fracture Occurrences in Oblique Side Impact Tests on Nine Post Mortem Human Subjects.

    Science.gov (United States)

    Petit, Philippe; Trosseille, Xavier; Lebarbé, Mathieu; Baudrit, Pascal; Potier, Pascal; Compigne, Sabine; Masuda, Mitsutoshi; Yamaoka, Akira; Yasuki, Tsuyoshi; Douard, Richard

    2015-11-01

    The WorldSID dummy can be equipped with both a pubic and a sacroiliac joint (S-I joint) loadcell. Although a pubic force criterion and the associated injury risk curve are currently available and used in regulation (ECE95, FMVSS214), as of today injury mechanisms, injury criteria, and injury assessment reference values are not available for the sacroiliac joint itself. The aim of this study was to investigate the sacroiliac joint injury mechanism. Three configurations were identified from full-scale car crashes conducted with the WorldSID 50th percentile male where the force passing through the pubis in all three tests was approximately 1500 N while the sacroiliac Fy/Mx peak values were 4500 N/50 Nm, 2400 N/130 Nm, and 5300 N/150 Nm, respectively. These tests were reproduced using a 150 kg guided probe impacting Post Mortem Human Subjects (PMHS) at 8 m/s, 5.4 m/s and 7.5 m/s. The shape and the orientation of the impacting face of the probe were selected to match the WorldSID pubic Fy and sacroiliac Fy/Mx loads of the three vehicle test configurations. Three PMHS were tested in each of the three configurations (nine PMHS in total). In the first PMHS configuration, one specimen sustained an AIS 3 injury and one sustained an AIS 4 injury (an unstable pelvis with complete disruption of the posterior arch, a sacroiliac joint disruption associated with an iliac fracture, and a pubic symphysis separation). In the second configuration, all specimens sustained a fracture of the superior lateral iliac wing (AIS 2). In the third configuration, one specimen sustained a partial disruption of the anterior arch (AIS 2). Based on the data from strain gauges located on the pubic rami and near the sacroiliac joint, the pubic rami fractures were identified as occurring prior to the sacroiliac fractures. Out of nine impactor tests performed, the PMHS S-I joint injuries were observed to consistently be associated with pelvic anterior arch fractures. In addition, from the injury

  14. Prostate Brachytherapy With Oblique Needles to Treat Large Glands and Overcome Pubic Arch Interference

    International Nuclear Information System (INIS)

    Ryu, Bon; Bax, Jeff; Edirisinge, Chandima; Lewis, Craig; Chen, Jeff; D’Souza, David; Fenster, Aaron; Wong, Eugene

    2012-01-01

    Purpose: First, to show that low-dose-rate prostate brachytherapy plans using oblique needle trajectories are more successful than parallel trajectories for large prostates with pubic arch interference (PAI); second, to test the accuracy of delivering an oblique plan by using a three-dimensional (3D) transrectal ultrasonography (TRUS)-guided mechatronic system. Methods and Materials: Prostates were contoured for 5 subjects’ 3D TRUS images showing a maximum PAI of ≤1 cm and a prostate volume of <50 cc. Two planning studies were done. First, prostate contours were artificially enlarged to 45 to 80 cc in 5- to 10-cc increments for a single subject. Second, all subject prostate contours were enlarged to 60 cc. For each study, three types of plans were manually created for comparison: a parallel needle template (PT) plan, a parallel needle no-template (PNT) plan, and an oblique needle no-template (OBL) plan. Needle positions and angles were not discretized for nontemplate plans. European Society for Therapeutic Radiology and Oncology dose-volume histogram guidelines, iodine-125 (145-Gy prescription, 0.43 U), and needle angles of <15° were used. An OBL plan was delivered to a pubic arch containing a 60-cc prostate phantom that mimicked the anatomy of the subject with the greatest PAI (23% by volume). Results: In the increasing-prostate volume study, OBL plans were successful for prostates of ≤80 cc, and PT plans were successful for prostates of <65 cc. In paired, one-sided t tests for the 60-cc volume study, OBL plans showed dosimetric improvements for all organs compared to both of the parallel type plans (p < 0.05); PNT plans showed a benefit only in planning target volumes receiving more than 100 Gy compared to PT plans. A computed tomography scan of the phantom showed submillimeter seed placement accuracy in all directions. Conclusion: OBL plans were significantly better than parallel plans, and an OBL plan was accurately delivered to a 60-cc prostate phantom

  15. Predicting the effectiveness of depth-based technologies to prevent salmon lice infection using a dispersal model.

    Science.gov (United States)

    Samsing, Francisca; Johnsen, Ingrid; Stien, Lars Helge; Oppedal, Frode; Albretsen, Jon; Asplin, Lars; Dempster, Tim

    2016-07-01

    Salmon lice is one of the major parasitic problems affecting wild and farmed salmonid species. The planktonic larval stages of these marine parasites can survive for extended periods without a host and are transported long distances by water masses. Salmon lice larvae have limited swimming capacity, but can influence their horizontal transport by vertical positioning. Here, we adapted a coupled biological-physical model to calculate the distribution of farm-produced salmon lice (Lepeophtheirus salmonis) during winter in the southwest coast of Norway. We tested 4 model simulations to see which best represented empirical data from two sources: (1) observed lice infection levels reported by farms; and (2) experimental data from a vertical exposure experiment where fish were forced to swim at different depths with a lice-barrier technology. Model simulations tested were different development time to the infective stage (35 or 50°-days), with or without the presence of temperature-controlled vertical behaviour of lice early planktonic stages (naupliar stages). The best model fit occurred with a 35°-day development time to the infective stage, and temperature-controlled vertical behaviour. We applied this model to predict the effectiveness of depth-based preventive lice-barrier technologies. Both simulated and experimental data revealed that hindering fish from swimming close to the surface efficiently reduced lice infection. Moreover, while our model simulation predicted that this preventive technology is widely applicable, its effectiveness will depend on environmental conditions. Low salinity surface waters reduce the effectiveness of this technology because salmon lice avoid these conditions, and can encounter the fish as they sink deeper in the water column. Correctly parameterized and validated salmon lice dispersal models can predict the impact of preventive approaches to control this parasite and become an essential tool in lice management strategies. Copyright

  16. The drivers of sea lice management policies and how best to integrate them into a risk management strategy: An ecosystem approach to sea lice management.

    Science.gov (United States)

    Jackson, D; Moberg, O; Stenevik Djupevåg, E M; Kane, F; Hareide, H

    2018-06-01

    The control of sea lice infestations on cultivated Atlantic salmon is a major issue in many regions of the world. The numerous drivers which shape the priorities and objectives of the control strategies vary for different regions/jurisdictions. These range from the animal welfare and economic priorities of the producers, to the mitigation of any potential impacts on wild stocks. Veterinary ethics, environmental impacts of therapeutants, and impacts for organic certification of the produce are, amongst others, additional sets of factors which should be considered. Current best practice in both EU and international environmental law advocates a holistic ecosystem approach to assessment of impacts and risks. The issues of biosecurity and ethics, including the impacts on the stocks of species used as cleaner fish, are areas for inclusion in such a holistic ecosystem assessment. The Drivers, Pressures, State, Impacts, Responses (DPSIR) process is examined as a decision-making framework and potential applications to sea lice management are outlined. It is argued that this is required to underpin any integrated sea lice management (ISLM) strategy to balance pressures and outcomes and ensure a holistic approach to managing the issue of sea lice infestations on farmed stock on a medium to long-term basis. © 2017 The Authors. Journal of Fish Diseases Published by John Wiley & Sons Ltd.

  17. Obturator Artery Injury Resulting in Massive Hemorrhage From a Low-Energy Pubic Ramus Fracture.

    Science.gov (United States)

    Solarz, Mark K; Kistler, Justin M; Rehman, Saqib

    2017-05-01

    Pelvic ring fractures are common in the elderly population and are usually a result of low-energy trauma, such as falls from standing. In most cases, low-energy pelvic ring injuries can be treated with appropriate analgesia and early mobilization. Arterial injury resulting in hemodynamic instability from a low-energy pelvic ring injury is rare but, given the poor compliance of vessels in the elderly population, possible. These patients must be carefully monitored after the initial injury. The purpose of this report is to describe an elderly patient who sustained a superior pubic ramus fracture and arterial injury following a low-energy fall from standing that required angiographic intervention. Elderly patients who sustain low-energy or pelvic insufficiency fractures are unlike the younger population with high-energy pelvic fractures and hemodynamic collapse. Elderly patients can have a delayed presentation of arterial injury and require careful physical examination and close monitoring. Additionally, the authors provide a review of the literature for low-energy pelvic fractures. [Orthopedics. 2017; 40(3):e546-e548.]. Copyright 2017, SLACK Incorporated.

  18. Reliability of the xipho-pubic angle in patients with sagittal imbalance of the spine.

    Science.gov (United States)

    Langella, Francesco; Villafañe, Jorge H; Ismael, Maryem; Buric, Josip; Piazzola, Andrea; Lamartina, Claudio; Berjano, Pedro

    2018-04-01

    Proximal junctional kyphosis (PJK) is a frequent complication that compromises the outcomes of spinal surgery, especially for adult deformity. To the date no single risk factor or cause has been identified that explains its occurrence. The purpose of this study was to investigate the test-retest reliability of the radiologic measurements using xipho-pubic angle (XPA) for subjects undergoing surgery for sagittal misalignment of the spine. Retrospective observational cross-sectional study of prospectively collected data. Full-spine standing lateral radiographs of 50 patients who underwent surgery for fixed sagittal imbalance (preoperative and postoperative) were evaluated. Internal consistency, reproducibility, concurrent validity, and discriminative ability of the XPA. Two physicians measured XPA on the 100 randomly sorted and anonymized radiographs on two occasions, one week apart (test and retest conditions), were calculated for inter and intraobserver agreement. Test-retest reliability of XPA measurement was excellent for pre- (ICC=0.98; P=0.001) and post-surgical (ICC=0.86; P=0.001) radiographs of subjects with sagittal imbalance of the spine. XPA was able to discriminate between preoperative and postoperative radiographs F=17.924, Pimbalance for both raters. There were significant differences between pre- vs. postoperative XPA, pelvic tilt, lumbar lordosis and sagittal vertical axis values (all Pimbalance.

  19. Chewing lice of swan geese (Anser cygnoides): New host-parasite associations

    Science.gov (United States)

    Choi, Chang-Yong; Takekawa, John Y.; Prosser, Diann J.; Smith, Lacy M.; Ely, Craig R.; Fox, Anthony D.; Cao, Lei; Wang, Xin; Batbayar, Nyambayar; Natsagdorj, Tseveenmayadag; Xiao, Xiangming

    2016-01-01

    Chewing lice (Phthiraptera) that parasitize the globally threatened swan goose Anser cygnoides have been long recognized since the early 19th century, but those records were probably biased towards sampling of captive or domestic geese due to the small population size and limited distribution of its wild hosts. To better understand the lice species parasitizing swan geese that are endemic to East Asia, we collected chewing lice from 14 wild geese caught at 3 lakes in northeastern Mongolia. The lice were morphologically identified as 16 Trinoton anserinum (Fabricius, 1805), 11 Ornithobius domesticus Arnold, 2005, and 1 Anaticola anseris (Linnaeus, 1758). These species are known from other geese and swans, but all of them were new to the swan goose. This result also indicates no overlap in lice species between older records and our findings from wild birds. Thus, ectoparasites collected from domestic or captive animals may provide biased information on the occurrence, prevalence, host selection, and host-ectoparasite interactions from those on wild hosts.

  20. Origin of clothing lice indicates early clothing use by anatomically modern humans in Africa.

    Science.gov (United States)

    Toups, Melissa A; Kitchen, Andrew; Light, Jessica E; Reed, David L

    2011-01-01

    Clothing use is an important modern behavior that contributed to the successful expansion of humans into higher latitudes and cold climates. Previous research suggests that clothing use originated anywhere between 40,000 and 3 Ma, though there is little direct archaeological, fossil, or genetic evidence to support more specific estimates. Since clothing lice evolved from head louse ancestors once humans adopted clothing, dating the emergence of clothing lice may provide more specific estimates of the origin of clothing use. Here, we use a Bayesian coalescent modeling approach to estimate that clothing lice diverged from head louse ancestors at least by 83,000 and possibly as early as 170,000 years ago. Our analysis suggests that the use of clothing likely originated with anatomically modern humans in Africa and reinforces a broad trend of modern human developments in Africa during the Middle to Late Pleistocene.

  1. Embryonic development of human lice: rearing conditions and susceptibility to spinosad

    Directory of Open Access Journals (Sweden)

    Gastón Mougabure Cueto

    2006-05-01

    Full Text Available The embryonic development of human lice was evaluated according to the changes in the morphology of the embryo observed through the transparent chorion. Based on ocular and appendage development, three stages of embryogenesis were established: early, medium, and late. Influence of temperature and relative humidity (RH on the laboratory rearing of Pediculus humanus capitis eggs was assessed. The optimal ranges for temperature and RH were 27-31°C and 45-75%. The susceptibility of human louse eggs to insecticide spinosad (a macrocyclic lactone was assessed by immersion method. The results showed similar susceptibility to spinosad in early, medium, and late stages of head lice eggs. In addition, this study showed similar susceptibility of head and body lice eggs to spinosad, an insecticide that has not been used as pediculicide in Argentina (lethal concentration 50: 0.01%.

  2. A field efficacy evaluation of emamectin benzoate for the control of sea lice on Atlantic salmon.

    OpenAIRE

    Armstrong, R; MacPhee, D; Katz, T; Endris, R

    2000-01-01

    This study evaluated the efficacy of emamectin benzoate, 0.2% aquaculture premix, against sea lice on Atlantic salmon in eastern Canada. Salmon pens received either emamectin benzoate, orally, in feed at 50 micrograms/kg body weight/day for 7 consecutive days, or the same diet with no added medication. The site veterinarian had the option of administering a bath treatment with azamethiphos to any pen in the trial. The mean number of lice per fish was lower (P < 0.05) in the experimental group...

  3. Does anatomy of the pubic arch interfere with the maintaining of erection?

    Science.gov (United States)

    Paul, Jean François; Virag, Ronald

    2013-03-01

    There are men who suffer from unsustainable erections without any identified cause of erectile dysfunction, raising the question if anatomical alterations could be involved. Since early anatomical studies, it has been proposed that to achieve full penile rigidity, the blood must be blocked inside the penis by compression of the deep dorsal vein (DDV), the main venous collector under pubic symphysis. Using a recently developed caverno computed tomography (CT) scan technique, allowing the evaluation of the venous drainage of the corpora cavernosa (CC) during erection, we have studied some anatomical conditions of this important part of the erectile phenomenon. Puboischial rami angles were measured in axial CT images and calculated strictly on the upper insertion point of the CC, using axial submillimeter slices in 37 patients divided into 3 groups depending on the results of the caverno CT scan: (i) no leak; (ii) superficial veins leaking; and (iii) drainage through the DDV and/or preprostatic plexus. In addition same angles were measured in two randomly unselected populations of men (N = 30), and women (N = 23) who underwent pelvic CT scan for various reasons, unrelated to their sexual or genital condition. The angles made by both puboischial rami were measured in patients with and without veno-occlusive dysfunction and in unselected samples of men and women. There is a significantly wider angle made by both puboischial rami in men without complete erection and without evidence of anomalous venous drainage (group 3) (72.2° ± 4.7° standard deviation [SD]), compared with both men with normal erection (group 1) (57.5 ± 5° SD) P drainage (group 2) (57.7 ± 6° SD) P < 0.00001. If confirmed in larger samples, these results raise new questions on the mechanism and the role of these significant anatomical variations, yet unknown, in maintaining or not full rigid erections. © 2012 International Society for Sexual Medicine.

  4. Evaluation of emamectin benzoate and substance EX against salmon lice in sea-ranched Atlantic salmon smolts.

    Science.gov (United States)

    Skilbrei, Ove Tommy; Espedal, Per Gunnar; Nilsen, Frank; Garcia, Enrique Perez; Glover, Kevin A

    2015-04-08

    Experimental releases of Atlantic salmon smolts treated with emamectin benzoate (EB) against salmon lice have previously been used to estimate the significance of salmon lice on the survival of migrating smolts. In recent years, the salmon louse has developed reduced sensitivity to EB, which may influence the results of such release experiments. We therefore tested the use of 2 anti-lice drugs: EB was administered to salmon smolts in high doses by intra-peritoneal injection and the prophylactic substance EX (SubEX) was administered by bathing. A third, untreated control group was also established. Salmon were challenged with copepodids of 2 strains of salmon lice (1 EB-sensitive strain and 1 with reduced EB-sensitivity) in mixed-group experimental tanks. At 31 d post-challenge, the numbers of pre-adult lice on treated fish were around 20% compared with the control fish, with minor or no differences between the 2 treatments and lice strains. Both treatments therefore appeared to give the smolts a high degree of protection against infestation of copepodids of salmon lice. However, significantly lower growth of the EB-treatment group indicates that bathing the fish in SubEX is less stressful for smolts than intra-peritoneal injection of EB.

  5. A test of Hartnett's revisions to the pubic symphysis and fourth rib methods on a modern sample.

    Science.gov (United States)

    Merritt, Catherine E

    2014-05-01

    Estimating age at death is one of the most important aspects of creating a biological profile. Most adult age estimation methods were developed on North American skeletal collections from the early to mid-20th century, and their applicability to modern populations has been questioned. In 2010, Hartnett used a modern skeletal collection from the Maricopia County Forensic Science Centre to revise the Suchey-Brooks pubic symphysis method and the İşcan et al. fourth rib methods. The current study tests Hartnett's revised methods as well as the original Suchey-Brooks and İşcan et al. methods on a modern sample from the William Bass Skeletal Collection (N = 313, mean age = 58.5, range 19-92). Results show that the Suchey-Brooks and İşcan et al. methods assign individuals to the correct phase 70.8% and 57.5% of the time compared with Hartnett's revised methods at 58.1% and 29.7%, respectively, with correctness scores based on one standard deviation of the mean rather than the entire age range. Accuracy and bias scores are significantly improved for Hartnett's revised pubic symphysis method and marginally better for Hartnett's revised fourth rib method, suggesting that the revised mean ages at death of Hartnett's phases better reflect this modern population. Overall, both Hartnett's revised methods are reliable age estimation methods. For the pubic symphysis, there are significant improvements in accuracy and bias scores, especially for older individuals; however, for the fourth rib, the results are comparable to the original İşcan et al. methods, with some improvement for older individuals. © 2014 American Academy of Forensic Sciences.

  6. A fixed-dose approach to conducting emamectin benzoate tolerance assessments on field-collected sea lice, Lepeophtheirus salmonis.

    Science.gov (United States)

    Whyte, S K; Westcott, J D; Elmoslemany, A; Hammell, K L; Revie, C W

    2013-03-01

    In New Brunswick, Canada, the sea louse, Lepeophtheirus salmonis, poses an on-going management challenge to the health and productivity of commercially cultured Atlantic salmon, Salmo salar. While the in-feed medication, emamectin benzoate (SLICE® ; Merck), has been highly effective for many years, evidence of increased tolerance has been observed in the field since late 2008. Although bioassays on motile stages are a common tool to monitor sea lice sensitivity to emamectin benzoate in field-collected sea lice, they require the collection of large numbers of sea lice due to inherent natural variability in the gender and stage response to chemotherapeutants. In addition, sensitive instruments such as EC(50) analysis may be unnecessarily complex to characterize susceptibility subsequent to a significant observed decline in efficacy. This study proposes an adaptation of the traditional, dose-response format bioassay to a fixed-dose method. Analysis of 657 bioassays on preadult and adult stages of sea lice over the period 2008-2011 indicated a population of sea lice in New Brunswick with varying degrees of susceptibility to emamectin benzoate. A seasonal and spatial effect was observed in the robustness of genders and stages of sea lice, which suggest that mixing different genders and stages of lice within a single bioassay may result in pertinent information being overlooked. Poor survival of adult female lice in bioassays, particularly during May/June, indicates it may be prudent to consider excluding this stage from bioassays conducted at certain times of the year. This work demonstrates that fixed-dose bioassays can be a valuable technique in detecting reduced sensitivity in sea lice populations with varying degrees of susceptibility to emamectin benzoate treatments. © 2013 Blackwell Publishing Ltd.

  7. prevalence of head lice infestation in primary school children in port ...

    African Journals Online (AJOL)

    2013-08-01

    Aug 1, 2013 ... Excoriation and secondary pyoderma, following trauma due to scratching, may result in matting together of the hair, cervical and occipital lymphadenopathy. Severe cases may result in group A Streptococcal impetigo with the risk of developing rheumatic heart disease and glomerulonephritis (14). Head lice.

  8. Head lice infestation in school children of a low socio- economy ...

    African Journals Online (AJOL)

    STORAGESEVER

    2008-07-04

    Jul 4, 2008 ... In the old Gaza city and the rural village Jabalia within the Gaza Governorate the rate of infestation with lice was 14.1% in the primary school girls. (Al-Shawa, 2006). In a high socio-economy area in Izmir,. Turkey, 4.2% of the studied population of the secondary and elementary school children were infested ...

  9. The treatment and eradication of sheep lice and ked with cyhalothrin--a new synthetic pyrethroid.

    Science.gov (United States)

    Rundle, J C; Forsyth, B A

    1984-12-01

    A new synthetic pyrethroid, cyhalothrin, has been evaluated as both a sheep dip and a jetting fluid for the control of body lice (Damalinia ovis), face lice (Linognathus ovillus), foot lice (Linognathus pedalis) and the sheep ked (Melophagus ovinus). A dip wash concentration of 1.25 ppm cyhalothrin eradicated D. ovis from sheep. A jetting fluid at a concentration of 20 ppm also eradicated D. ovis. In the field cyhalothrin was evaluated at 20 ppm as a dip wash and at 50 ppm as a jetting fluid. These field trials confirmed the ability of cyhalothrin to eradicate D. ovis from short and long-woolled sheep. The sucking lice, L. ovillus and L. pedalis, were also found to be very susceptible to cyhalothrin at a dip wash concentration of 20 ppm, but it was necessary to treat the predilection sites infested by these parasites twice within a 3-week period to achieve their eradication. Sheep ked (M. ovinus) were eradicated from an infected flock of sheep after plunge dipping in cyhalothrin at 20 ppm.

  10. Evidence of Sympatry of Clade A and Clade B Head Lice in a Pre-Columbian Chilean Mummy from Camarones

    Science.gov (United States)

    Boutellis, Amina; Drali, Rezak; Rivera, Mario A.; Mumcuoglu, Kosta Y.; Raoult, Didier

    2013-01-01

    Three different lineages of head lice are known to parasitize humans. Clade A, which is currently worldwide in distribution, was previously demonstrated to be present in the Americas before the time of Columbus. The two other types of head lice are geographically restricted to America and Australia for clade B and to Africa and Asia for clade C. In this study, we tested two operculated nits from a 4,000-year-old Chilean mummy of Camarones for the presence of the partial Cytb mitochondrial gene (270 bp). Our finding shows that clade B head lice were present in America before the arrival of the European colonists. PMID:24204678

  11. Efficacy of a grapefruit extract on head lice: a clinical trial.

    Science.gov (United States)

    Abdel-Ghaffar, Fathy; Semmler, Margit; Al-Rasheid, Khaled; Klimpel, Sven; Mehlhorn, Heinz

    2010-01-01

    Twenty children aging 2-9 years old--four boys with short hair and 16 girls with long hair--were included in a clinical test on the efficacy of a product against head lice (Pediculus humanus capitis). Their hair were exposed to Licatack, which is a recently developed new anti-louse medicinal product containing extracts of grapefruits besides high quality shampoo components. Prior to this field trial, the product Licatack was tested dermatologically to be skin safe receiving the grade "very good". The children's mothers combed the kids prior to the start of the test in order to confirm that they were all lice-infested. The obtained lice were used for in vitro tests. All children were heavily infested. After combing and preservation of the living lice, the hair was wet with tap water. Then, 50 ml of the Licatack shampoo was placed onto the top of each child's head. Then, the mothers distributed the rather fluid product all over the hair thoroughly from their base at the skin until the free end. During this process, a type of massage, the product became foamy and it was easily recognized where the product covered the hair, thus, avoiding untreated spots. The hair of half of the treated children were washed with tap water after 10 min of exposition; while in the other half of the children, the exposition period was prolonged to 20 min before washing. When combing the kids with a metal louse comb after the washing, the lice were found immobile and they did not recover during the following observation period of 4 h. Only two lice from the group with an exposition time of only 10 min showed some slight leg movements after they had been combed off, but they died within the next 2 h. Thus, this new anti-louse medicinal product has a very quick and efficient activity besides its advantages of being non-inflammable, skin safe, and nice smelling. None of the kids claimed any burning at the skin or other side effects, although the skin showed, prior to treatment, lots of scars

  12. El coeficiente de eficacia del humo de sílice

    Directory of Open Access Journals (Sweden)

    Alaejos Gutiérrez, M. Pilar

    1999-03-01

    Full Text Available Silica fume is a pozzolanic addition specially used to get high resistance concrete. Present Spanish standards on additives dictate that silica fumes have to comply with specific requirements when used as concrete addition. Once it has been proved they comply with those requirements, microsilicas of different characteristics can be used, which influence concrete properties in different ways. This paper discloses the experimental results obtained in the Central Laboratory of Structures and Materials of the CEDEX with three microsilicas from different sources. Through the results it has been observed that the coefficient of efficiency of silica fume can have very different values, although complying with the standards in force. The value of this coefficient of efficiency is compared to the one included in text of the future EHE.

    El humo de sílice es una adición de carácter puzolánico que se utiliza fundamentalmente para conseguir hormigones de alta resistencia. La normativa española actual de adiciones exige que el humo de sílice cumpla unos requisitos determinados para poder utilizarse como adición al hormigón. Cumpliendo estos requisitos, pueden utilizarse microsílices de características distintas que influyen de distinta manera en las propiedades del hormigón. La ponencia expone los resultados experimentales obtenidos en el Laboratorio Central de Estructuras y Materiales del CEDEX con tres microsílices de diferente procedencia. Los resultados han permitido determinar que el coeficiente de eficacia del humo de sílice puede tener valores muy diferentes, incluso con adiciones que cumplan la normativa vigente. Se compara el valor de este coeficiente de eficacia con el incluido en el texto de la futura EHE.

  13. Prevalencia y estacionalidad de la Pediculosis capitis en la población infante-juvenil de la region sanitaria, Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Castro Dolores del C.

    1994-01-01

    Full Text Available Se estudió la prevalencia de la Pediculosis capitis como enfermedad parasitaria durante el año calendario 1-8-1992 al 31-7-1993, en la Región Sanitaria XI de la provincia de Buenos Aires, Argentina, que comprende 15 partidos del Este Noreste de la provincia de Buenos Aires y otras zonas de influencia del Hospital Interzonal de Agudos, Especialidad Pediatría "Sor María Ludovica", cabecera de dicha Región Sanitaria. Se examinaron un total de 552 individuos de nivel social medio a medio bajo de la población infanto-juvenil de O a 16 años, tomados al azar en 52 muestreos semanales consecutivos, considerándose como positivos para esta enfermedad a aquellos parasitados al momento del diagnóstico. Los resultados se expresan en términos de prevalencia analizándose su variación mensual y estacional. La prevalencia fue relativamente alta en todos los meses, con valores mínimos en febrero (12% y máximos en agosto (56,8%, siendo la media anual de 38,04% (+/- 4,05. Estacionalmente, su menor valor corresponde al Verano (16,8%, siendo muy semejantes los valores para las restantes estaciones, manteniéndose siempre superiores al 38%.

  14. Randomized, investigator-blinded, controlled clinical study with lice shampoo (Licener®) versus dimethicone (Jacutin® Pedicul Fluid) for the treatment of infestations with head lice.

    Science.gov (United States)

    Semmler, Margit; Abdel-Ghaffar, Fathy; Gestmann, Falk; Abdel-Aty, Mohammed; Rizk, Ibrahim; Al-Quraishy, Saleh; Lehmacher, Walter; Hoff, Norman-Philipp

    2017-07-01

    The present clinical trial was conducted to obtain additional data for the safety and efficacy of a head lice shampoo that is free of silicone compared with an anti-head lice product containing dimethicone. Both products act by a physical mode of action. This randomized, investigator-blinded, controlled clinical study was conducted between July and November 2016 in households of two villages (Abou Rawash and Shandalat) in Egypt. Children older than 2 years with an active head lice infestation were treated with either a shampoo-based head lice treatment containing neem extract (Licener®) or dimethicone (Jacutin® Pedicul Fluid) on day 1 and additionally on day 9. Assessment for living lice by combing was conducted before and 1-2 h after treatment and on days 5 and 13. The main objective was to demonstrate a cure rate of the test product of at least 85% after a single application (day 5 and 9). Secondary objectives were to scrutinize patient safety and satisfaction as well as cure rates on day 13 after two treatments and the evaluation of ovicidal and licicidal efficacies of the products. Sixty-one children in the test-group (Licener®) and 58 children in the reference group (Jacutin® Pedicul Fluid) were included in this study. The test product and the reference product were very well tolerated. Both products exceeded the objective of cure rates of over 85% after single treatment (test group 60/60 = 100%; 95% CI = 94.04-100.00%; reference group 54/57 = 94.74%; 95% CI = 85.38-98.90%; p = 0.112; CI by Clopper-Pearson) and after two treatments (test group 58/58 = 100%; 95% CI = 93.84-100.00%; reference group 52/54 = 96.30%; 95% CI = 87.25-99.55%; p = 0.230) with higher cure rates and non-inferiority for the test product. The combined success rate shows significant superiority of the test product against the reference product (test group 58/58 = 100%; 95% CI = 93.84-100.00%; reference group 49/54 = 90.7%; 95% CI = 79.70-96.92%; p = 0

  15. Artritis séptica del pubis en dos deportistas Septic arthritis of the pubic symphysis in two athletes

    Directory of Open Access Journals (Sweden)

    José A. Andrews

    2012-06-01

    Full Text Available La artritis séptica de pubis u osteomielitis púbica es la infección que compromete la sínfisis pubiana y su articulación. Es poco frecuente, representando menos del 1% de las osteomielitis. Afecta más a menudo a atletas jóvenes y a mujeres que se someten a cirugía ginecológica o urológica. Se presenta con fiebre y dolor púbico, irradiado a genitales, que aumenta con la movilización de la cadera lo que produce claudicación de la marcha. Debe hacerse el diagnóstico diferencial con la osteítis del pubis que es una condición inflamatoria estéril. La punción guiada por imagen suele ser necesaria para el diagnóstico diferencial con la osteítis del pubis. El diagnóstico se basa en la clínica apoyada en el aislamiento microbiológico, métodos por imágenes e incremento de las proteínas de fase aguda. Los agentes etiológicos más comúnmente encontrados son Staphylococcus aureus, seguidos de bacilos gram negativos, o pueden ser polimicrobianos en posquirúrgicos. El tratamiento antibiótico se ajusta al germen aislado por cultivo, además de antiinflamatorios y reposo. El desbridamiento quirúrgico se requiere hasta en el 55% de los casos. Se recomiendan antibióticos por 6 semanas. Se presentan dos casos de osteomielitis del pubis por S. aureus, con buena respuesta al tratamiento. Ambos pacientes eran jóvenes y deportistas.Septic arthritis of the pubic symphysis, so called osteomyelitis pubis is the infection which involves pubic symphysis and its joint. It is a rare condition, representing less than one percent of all cases of osteomyelitis. It affects most frequently young athletes and women undergoing gynecologic or urologic surgery. It presents itself with fever and pubic pain which irradiates to the genitals and increases when hip is mobilized, and this fact produces gait claudication. Differential diagnosis should be made with pubic osteitis, which is a sterile inflammatory condition. Diagnosis is based on clinic

  16. Optimization and field use of a bioassay to monitor sea lice Lepeophtheirus salmonis sensitivity to emamectin benzoate.

    Science.gov (United States)

    Westcott, Jillian D; Stryhn, Henrik; Burka, John F; Hammell, K Larry

    2008-04-01

    A bioassay for sea lice Lepeophtheirus salmonis sensitivity towards emamectin benzoate (EMB) was validated for field use. A probit regression model with natural responsiveness was used for the number of affected (moribund or dead) sea lice in bioassays involving different concentrations of EMB. Bioassay optimization included an evaluation of the inter-rater reliability of sea lice responsiveness to EMB and an evaluation of gender-related differences in susceptibility. Adoption of a set of bioassay response criteria improved the concordance (evaluated using the concordance correlation coefficient) between raters' assessments and the model estimation of EC50 values (the 'effective concentration' leading to a response of 50% of the lice not prone to natural response). An evaluation of gender-related differences in EMB susceptibility indicated that preadult stage female sea lice exhibited a significantly larger sensitivity towards EMB in 12 of 19 bioassays compared to preadult males. In order to evaluate sea lice sensitivity to EMB in eastern Canada, the intensive salmon farming area in the Bay of Fundy in southwestern New Brunswick was divided into 4 distinct regions based on industry health management practices and hydrographics. A total of 38 bioassays were completed from 2002 to 2005 using populations of preadult stage sea lice collected from Atlantic salmon Salmo salar farms within the 4 described regions. There was no significant overall effect of region or year on EC50 values; however, analysis of variance indicated a significant effect of time of year on EC50 values in 2002 and a potential effect in 2004 to 2005. Although the range of EC50 values obtained in this 3 yr study did not appear sufficient to affect current clinical success in the control of sea lice, the results suggest a seasonal- or temperature-associated variation in sensitivity to EMB. This will need to be considered if changes in EMB efficacy occur in the future.

  17. Strategické plánování rozvoje města Domažlice

    OpenAIRE

    JANSOVÁ, Nicole

    2014-01-01

    The aim of the thesis "Strategic urban development planning of the town Domažlice" was to evaluate entire process of preparation, creation and implementation of the strategic plan of the municipality. The theoretical part reviews scientific literature focused on strategic planning and the characteristics of the strategic plan. Practical part contains analysis of Strategic Development Plan of the town Domažlice.

  18. Clinical, Biomechanical, and Anatomic Investigation of Colles Fascia and Pubic Ramus Periosteum for Use During Medial Thighplasty.

    Science.gov (United States)

    Carney, Martin J; Matatov, Tim; Freeman, Matthew; Miller, John; Vemula, Rahul; Schuster, Jason; Dancisak, Michael; Lindsey, John; Rae, Guenevere

    2017-06-01

    The medial thighplasty is a procedure where patients may attain superior mobility, hygiene, and cosmesis. Most surgeons use attachment of the superficial fascial system (SFS) of the thigh flap to the Colles fascia, whereas others attach the SFS to the pubic ramus periosteum. Because of a high complication profile, we aim to elucidate the clinical, biomechanical, and anatomic qualities of the Colles fascia versus the pubic ramus periosteum. We performed a 17-year retrospective review documenting clinical complications, a biomechanical analysis of sutures placed in different tissue layers of the thigh, and a histologic analysis surrounding the ischiopubic ramus. Separate suture pull-out strength testing was conducted on cadaveric tissue using an Admet MTEST Quattro with no. 1 Vicryl suture and tissue grips at a displacement rate of 2.12 mm/s. Simultaneous displacement and force were acquired at 100 Hz and with measurements obtained at regular intervals between the pubic symphysis and the ischial tuberosity in both the Colles fascia and the deeper periosteal layers of the thigh. A histologic analysis was performed at 3 points along the ischiopubic ramus using paraffin-embedded large mount tissue sections stained with hematoxylin, eosin, and Gomori trichrome. Thirty-nine patients underwent medial thighplasty with a 46.16% complication rate. Suture pull-out force of the suspected superficial Colles fascia sites was, on average, 72.8% less than values from the deeper periosteum tissue. Anchor points in the Colles fascia elongated 17.4% further before failure than those in the periosteum. There was noticeable variability between anchor points and across samples. The histologic sections suggest that the Colles fascia from the different regions of the ischiopubic ramus varies considerably in both continuity and collagen fiber content with no discernible pattern. The periosteal and muscular fascial layers were more continuous histologically with direct attachments into the

  19. Delayed Bleeding and Pelvic Haematoma after Low-Energy Osteoporotic Pubic Rami Fracture in a Warfarin Patient: An Unusual Cause of Abdominal Pain

    Directory of Open Access Journals (Sweden)

    Andrea Sandri

    2014-01-01

    Full Text Available Introduction. Acute abdominal pain may be the presenting symptom in a wide range of diseases in the elderly. Acute abdominal pain related to a delayed bleeding and pelvic haematoma after a low-energy pubic rami fracture is rare and can have important consequences; to the best of our knowledge, only one case has been previously described. Case Report. We present an unusual case of an 83-year-old woman taking warfarin for atrial fibrillation, admitted to the Emergency Department (ED with acute abdominal pain and progressive anemia related to a delayed bleeding and pelvic haematoma 72 hours after a low-energy osteoporotic pubic rami fracture. Warfarin was withheld, anticoagulation was reversed by using fresh frozen plasma and vitamin K, and concentrated red blood cells were given. Haemoglobin level gradually returned to normal with a progressive resorption of the haematoma. Conclusion. Delayed bleeding and pelvic haematoma after osteoporotic pubic rami fracture should be considered in the differential diagnosis of acute abdominal pain in the elderly. This case indicates the need for hospital admission, careful haemodynamic monitoring, and early identification of bleeding in patients with “benign” osteoporotic pubic rami fracture, especially those receiving anticoagulants, to provide an adequate management and prevent severe complications.

  20. Time-dependent regulation of morphological changes and cartilage differentiation markers in the mouse pubic symphysis during pregnancy and postpartum recovery.

    Science.gov (United States)

    Castelucci, Bianca Gazieri; Consonni, Sílvio Roberto; Rosa, Viviane Souza; Sensiate, Lucimara Aparecida; Delatti, Paula Cristina Rugno; Alvares, Lúcia Elvira; Joazeiro, Paulo Pinto

    2018-01-01

    Animal models commonly serve as a bridge between in vitro experiments and clinical applications; however, few physiological processes in adult animals are sufficient to serve as proof-of-concept models for cartilage regeneration. Intriguingly, some rodents, such as young adult mice, undergo physiological connective tissue modifications to birth canal elements such as the pubic symphysis during pregnancy; therefore, we investigated whether the differential expression of cartilage differentiation markers is associated with cartilaginous tissue morphological modifications during these changes. Our results showed that osteochondral progenitor cells expressing Runx2, Sox9, Col2a1 and Dcx at the non-pregnant pubic symphysis proliferated and differentiated throughout pregnancy, giving rise to a complex osteoligamentous junction that attached the interpubic ligament to the pubic bones until labour occurred. After delivery, the recovery of pubic symphysis cartilaginous tissues was improved by the time-dependent expression of these chondrocytic lineage markers at the osteoligamentous junction. This process potentially recapitulates embryologic chondrocytic differentiation to successfully recover hyaline cartilaginous pads at 10 days postpartum. Therefore, we propose that this physiological phenomenon represents a proof-of-concept model for investigating the mechanisms involved in cartilage restoration in adult animals.

  1. The Use of GIS Methodology in Jumping Plant Lice (Hemiptera: Psylloidae Studies in Serbia

    Directory of Open Access Journals (Sweden)

    Dušanka Jerinić-Prodanović

    2012-01-01

    Full Text Available Entomofaunistic studies contain a large number of data regarding the number ofcollected species, the number of individuals within species, time of collection, localities,species biology and morphology natural enemies and hosts. Besides thematic andtemporal components this kind of studies include spatial component which is crucialfor the use of GIS methodology and advanced possibilities of geospatial analysis. Duringour studies on jumping plant lice (Psylloidea fauna and their natural enemies on theterritory of Serbia which lasted for several years, a large number of spatially referenceddata related to this group of insects were collected. The process of collecting, archivingand classifying the data on each species was improved by applying the GIS methodologicalapproach after which the data were entered into database. The analysis of datausing thematic and spatial queries, as well as graphic, numeric and textual display of theresults from studies enabled simpler and more complete survey of horizontal and verticaldistribution of jumping plant lice, their biology and relationship with plants, predatorsand parasitoids.

  2. Effect of exposure on salmon lice Lepeophtheirus salmonis population dynamics in Faroese salmon farms

    DEFF Research Database (Denmark)

    Patursson, Esbern J.; Simonsen, Knud; Visser, Andre

    2017-01-01

    We assessed variations in salmon lice Lepeophtheirus salmonis population dynamics in Faroese salmon farms in relationship to their physical exposure to local circulation patterns and flushing with adjacent waters. Factors used in this study to quantify physical exposure are estimates...... of the freshwater exchange rate, the tidal exchange rate and dispersion by tidal currents. Salmon farms were ranked according to the rate of increase in the average numbers of salmon lice per fish. In a multiple linear regression, physical exposure together with temperature were shown to have a significant effect...... threshold of salmon stocking numbers for outbreaks of infection. The study presents a simple method of characterizing salmon farming fjords in terms of their different exposure levels and how they relate to potential self-infection at these sites...

  3. Chewing lice Trichodectes pinguis pinguis in Scandinavian brown bears (Ursus arctos

    Directory of Open Access Journals (Sweden)

    Núria Fandos Esteruelas

    2016-08-01

    Full Text Available In April 2014 and 2015, we noted localized alopecia (neck, forelimbs, and chest and hyperpigmentation on two adult brown bears (Ursus arctos captured in central-south Sweden for ecological studies under the Scandinavian Brown Bear Research Project. In spring 2015, a brown bear was shot because of human-wildlife conflict in the same region. This bear also had extensive alopecia and hyperpigmentation. Ectoparasites were collected from the affected skin areas in all three individuals and preserved in ethanol for identification. Based on morphological characteristics, the lice were identified as Trichodectes spp. and Trichodectes pinguis pinguis. To our knowledge, these are the first reported cases of chewing lice in free-ranging brown bears in Scandinavia.

  4. Informe higiénico de polvo de sílice y de amianto

    OpenAIRE

    Roca Ruiz, Patricia

    2012-01-01

    Informe de una medición de amianto y de polvo de sílice, modelo de un plan de prevención de riesgos laborales. Departamento de Ingeniería Química y Tecnología del Medio Ambiente Máster en Gestión de la Prevención de Riesgos Laborales, Calidad y Medio Ambiente

  5. Two new records of chewing lice (Phthiraptera: Ischnocera: Philopteridae) on Leptotila megalura (Aves: Columbidae) from Argentina

    OpenAIRE

    Guardia, Leonor

    2008-01-01

    Dos especies de piojos masticadores (Phthiraptera: Ischnocera: Philopteridae), Physconelloides ceratoceps Ewing y Columbicola gracilicapitis Carriker, son registradas por primera vez sobre Leptotila megalura Sclater & Salvin ("yerutí yungueña") (Aves: Columbidae). Además, C. gracilicapitis es citada por primera vez para la Argentina.Two species of chewing lice (Phthiraptera: Ischnocera: Philopteridae), Physconelloides ceratoceps Ewing and Columbicola gracilicapitis Carriker are recorded for t...

  6. Actividad antinflamatoria de extractos y fracciones obtenidas de cálices de Physalis peruviana L.

    Directory of Open Access Journals (Sweden)

    Luis A. Franco

    2007-03-01

    Conclusión. Este estudio confirma la actividad antinflamatoria atribuida a los cálices de Physalis peruviana y también valida su uso en la medicina popular. Se identificaron las principales fracciones responsables de la actividad antinflamatoria, las cuales parecen ser promisorias para el desarrollo de fitopreparados. Se requieren estudios posteriores para aislar e identificar los compuestos responsables de la actividad y también para investigar el mecanismo involucrado en el efecto antinflamatorio observado.

  7. Age- and gender-related characteristics of the pubic symphysis and triradiate cartilage in pediatric computed tomography

    International Nuclear Information System (INIS)

    Bayer, Joerg; Suedkamp, Norbert P.; Reising, Kilian; Neubauer, Jakob; Saueressig, Ulrich

    2016-01-01

    There is little information on the pubic symphysis' normal CT appearance in children. We sought to generate age-, gender- and maturity-related symphyseal width appearances in CT scans. Pelvic CT scans performed for any reason during a 6-year period in patients younger than 18 years were retrospectively analyzed. The symphysis width was measured in the axial plane and the triradiate cartilage was classified as open or closed. Four hundred twenty-seven CT scans were evaluated and 350 remained for analysis. Age- and gender-related measurements of the symphysis width are illustrated on various centile graphs. When grouping children by age in years 0-6, 7-11, 12-15 and 16-17, mean (standard deviation) symphysis width was 5.4 mm (0.9), 5.3 mm (1.1), 4.1 mm (1.1) and 3.5 mm (1.0), respectively, in girls and 5.9 mm (1.3), 5.4 mm (1.2), 5.2 mm (1.1) and 4.0 mm (1.0), respectively, in boys. Boys and girls were significantly different in the age groups 12-15 years (P<0.001) and 16-17 years (P=0.04). In the mature pelvis, the symphyseal gap is significantly (P<0.001) shorter in both genders, and in girls compared to boys (P=0.04). The pubic symphysis width in children differs according to age, gender and maturity. The reference values published herein may help detect symphyseal injury. (orig.)

  8. Age- and gender-related characteristics of the pubic symphysis and triradiate cartilage in pediatric computed tomography

    Energy Technology Data Exchange (ETDEWEB)

    Bayer, Joerg; Suedkamp, Norbert P.; Reising, Kilian [Medical Centre -University of Freiburg, Department of Orthopedics and Trauma Surgery, Freiburg (Germany); Neubauer, Jakob [Medical Centre - University of Freiburg, Department of Radiology, Freiburg (Germany); Saueressig, Ulrich [Kreiskrankenhaus Emmendingen, Department of Radiology, Emmendingen (Germany)

    2016-11-15

    There is little information on the pubic symphysis' normal CT appearance in children. We sought to generate age-, gender- and maturity-related symphyseal width appearances in CT scans. Pelvic CT scans performed for any reason during a 6-year period in patients younger than 18 years were retrospectively analyzed. The symphysis width was measured in the axial plane and the triradiate cartilage was classified as open or closed. Four hundred twenty-seven CT scans were evaluated and 350 remained for analysis. Age- and gender-related measurements of the symphysis width are illustrated on various centile graphs. When grouping children by age in years 0-6, 7-11, 12-15 and 16-17, mean (standard deviation) symphysis width was 5.4 mm (0.9), 5.3 mm (1.1), 4.1 mm (1.1) and 3.5 mm (1.0), respectively, in girls and 5.9 mm (1.3), 5.4 mm (1.2), 5.2 mm (1.1) and 4.0 mm (1.0), respectively, in boys. Boys and girls were significantly different in the age groups 12-15 years (P<0.001) and 16-17 years (P=0.04). In the mature pelvis, the symphyseal gap is significantly (P<0.001) shorter in both genders, and in girls compared to boys (P=0.04). The pubic symphysis width in children differs according to age, gender and maturity. The reference values published herein may help detect symphyseal injury. (orig.)

  9. A rare case of primary clear cell sarcoma of the pubic bone resembling small round cell tumor: an unusual morphological variant

    International Nuclear Information System (INIS)

    Nakayama, Shoko; Tsuji, Motomu; Hanafusa, Toshiaki; Yokote, Taiji; Iwaki, Kazuki; Akioka, Toshikazu; Miyoshi, Takuji; Hirata, Yuji; Takayama, Ayami; Nishiwaki, Uta; Masuda, Yuki

    2012-01-01

    Clear cell sarcoma (CCS) and malignant melanoma share overlapping immunohistochemistry with regard to the melanocytic markers HMB45, S100, and Melan-A. However, the translocation t(12; 22)(q13; q12) is specific to CCS. Therefore, although these neoplasms are closely related, they are now considered to be distinct entities. However, the translocation is apparently detectable only in 50%–70% of CCS cases. Therefore, the absence of a detectable EWS/AFT1 rearrangement may occasionally lead to erroneous exclusion of a translocation-negative CCS. Therefore, histological assessment is essential for the correct diagnosis of CCS. Primary CCS of the bone is exceedingly rare. Only a few cases of primary CCS arising in the ulna, metatarsals, ribs, radius, sacrum, and humerus have been reported, and primary CCS arising in the pubic bone has not been reported till date. We present the case of an 81-year-old man with primary CCS of the pubic bone. Histological examination of the pubic bone revealed monomorphic small-sized cells arranged predominantly as a diffuse sheet with round, hyperchromatic nuclei and inconspicuous nucleoli. The cells had scant cytoplasm, and the biopsy findings indicated small round cell tumor (SRCT). Immunohistochemical staining revealed the tumor cells to be positive for HMB45, S100, and Melan-A but negative for cytokeratin (AE1/AE3) and epithelial membrane antigen. To the best of our knowledge, this is the first case report of primary CCS of the pubic bone resembling SRCT. This ambiguous appearance underscores the difficulties encountered during the histological diagnosis of this rare variant of CCS. Awareness of primary CCS of the bone is clinically important for accurate diagnosis and management when the tumor is located in unusual locations such as the pubic bone and when the translocation t(12; 22)(q13; q12) is absent

  10. Seasonal infestation of donkeys by lice: phenology, risk factors and management.

    Science.gov (United States)

    Ellse, L; Burden, F A; Wall, R

    2014-07-14

    A longitudinal study was undertaken over a 21 months period to examine the seasonal abundance of lice infesting donkeys, the risk factors which predispose donkeys to infestation and the effectiveness of louse management. All the lice seen were Bovicola (Werneckiella) ocellatus. A strong seasonal pattern, which was correlated with mean monthly temperature, was observed with higher prevalence and intensity in the cooler, winter months (October-March). Overall infestation in these animals was over-dispersed, suggesting that some individuals are strongly predisposed to infestation. Donkey age and mean hair length were characteristics which affected louse prevalence: older and younger donkeys and donkeys with longer hair harboured the highest numbers of lice. However, the practice of coat-clipping, to reduce the infestation, resulted in a lower louse prevalence only in the summer, suggesting that clipping is not an effective form of louse control in cooler months. Higher louse burdens were associated with larger areas of visible excoriation and hair damage, suggesting that B. ocellatus does adversely impact animal welfare. However, the ability of animal carers to estimate louse presence or absence accurately on an individual donkey was not sufficiently high to allow targeted selective treatment of heavily infested animals to be employed effectively. As animals are housed in closed herds these findings suggest that clipping in the summer and treating all animals with insecticide in late autumn, prior to turn-in may be an effective louse management strategy. Copyright © 2014 Elsevier B.V. All rights reserved.

  11. Nuclear genetic diversity in human lice (Pediculus humanus reveals continental differences and high inbreeding among worldwide populations.

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    Marina S Ascunce

    Full Text Available Understanding the evolution of parasites is important to both basic and applied evolutionary biology. Knowledge of the genetic structure of parasite populations is critical for our ability to predict how an infection can spread through a host population and for the design of effective control methods. However, very little is known about the genetic structure of most human parasites, including the human louse (Pediculus humanus. This species is composed of two ecotypes: the head louse (Pediculus humanus capitis De Geer, and the clothing (body louse (Pediculus humanus humanus Linnaeus. Hundreds of millions of head louse infestations affect children every year, and this number is on the rise, in part because of increased resistance to insecticides. Clothing lice affect mostly homeless and refugee-camp populations and although they are less prevalent than head lice, the medical consequences are more severe because they vector deadly bacterial pathogens. In this study we present the first assessment of the genetic structure of human louse populations by analyzing the nuclear genetic variation at 15 newly developed microsatellite loci in 93 human lice from 11 sites in four world regions. Both ecotypes showed heterozygote deficits relative to Hardy-Weinberg equilibrium and high inbreeding values, an expected pattern given their parasitic life history. Bayesian clustering analyses assigned lice to four distinct genetic clusters that were geographically structured. The low levels of gene flow among louse populations suggested that the evolution of insecticide resistance in lice would most likely be affected by local selection pressures, underscoring the importance of tailoring control strategies to population-specific genetic makeup and evolutionary history. Our panel of microsatellite markers provides powerful data to investigate not only ecological and evolutionary processes in lice, but also those in their human hosts because of the long

  12. Effect of permethrin-impregnated underwear on body lice in sheltered homeless persons: a randomized controlled trial.

    Science.gov (United States)

    Benkouiten, Samir; Drali, Rezak; Badiaga, Sékéné; Veracx, Aurélie; Giorgi, Roch; Raoult, Didier; Brouqui, Philippe

    2014-03-01

    The control of body lice in homeless persons remains a challenge. To determine whether the use of long-lasting insecticide-treated underwear provides effective long-term protection against body lice in homeless persons. A randomized, double-blind, placebo-controlled trial was conducted in February and December 2011 in 2 homeless shelters (Madrague Ville and Forbin) in Marseille, France. Of the 125 homeless persons screened for eligibility, 73 body lice-infested homeless persons, 18 years or older, were enrolled. Body lice-infested homeless persons were randomly assigned to receive 0.4% permethrin-impregnated underwear or an identical-appearing placebo for 45 days, in a 1:1 ratio, with a permuted block size of 10. Visits were scheduled at days 14 and 45. Data regarding the presence or absence of live body lice were collected. The primary and secondary end points were the proportions of homeless persons free of body lice on days 14 and 45, respectively. Mutations associated with permethrin resistance in the body lice were also identified. Significantly more homeless persons receiving permethrin-impregnated underwear than homeless persons receiving the placebo were free of body lice on day 14 in the intent-to-treat population (28% vs 9%; P = .04), with a between-group difference of 18.4 percentage points (95% CI, 1.4-35.4), and in the per-protocol population (34% vs 11%; P = .03), with a between-group difference of 23.7 percentage points (95% CI, 3.6-43.7). This difference was not sustained on day 45. At baseline, the prevalence of the permethrin-resistant haplotype was 51% in the permethrin group and 44% in the placebo group. On day 45, the permethrin-resistant haplotype was significantly more frequent in the permethrin group than in the placebo group (73% vs 45%, P < .001). Permethrin-impregnated underwear is more efficient than placebo at eliminating body louse infestations by day 14; however, this difference was not sustained on day 45. The use of permethrin

  13. Considerations in developing an integrated pest management programme for control of sea lice on farmed salmon in Pacific Canada.

    Science.gov (United States)

    Brooks, K M

    2009-01-01

    In the development of integrated pest management (IPM) plans for the control of sea lice there are some components that are common to many areas. However, effective plans must be tailored to regionally varying environmental and biological factors affecting the severity of sea lice infections. This paper describes factors that would be involved in the development of an IPM plan for sea lice in the Broughton Archipelago, British Columbia. Temperature, salinity and currents affect the production, dispersion and competence of larvae of sea lice, Lepeophtheirus salmonis (Krøyer), as they develop to the infective copepodid stage. This information can be coupled with oceanographic conditions in the Broughton Archipelago and emerging computer models to define zones of infection where infections of new hosts are most likely. Salinity and temperature depend, in part, on river discharge in estuarine systems. River discharge depends on precipitation, snow pack and ambient temperatures, which can be monitored to help forecast the intensity of sea lice infections associated with both farmed and wild hosts. One of the goals of IPM planning is to reduce reliance on pesticides to avoid development of resistance in targeted parasites and to minimize environmental residues. Recommendations for developing an IPM plan specific to the Broughton Archipelago are provided along with a discussion of the additional information needed to refine IPM plans in this and other areas.

  14. Transcriptomic responses to emamectin benzoate in Pacific and Atlantic Canada salmon lice Lepeophtheirus salmonis with differing levels of drug resistance.

    Science.gov (United States)

    Sutherland, Ben J G; Poley, Jordan D; Igboeli, Okechukwu O; Jantzen, Johanna R; Fast, Mark D; Koop, Ben F; Jones, Simon R M

    2015-02-01

    Salmon lice Lepeophtheirus salmonis are an ecologically and economically important parasite of wild and farmed salmon. In Scotland, Norway, and Eastern Canada, L. salmonis have developed resistance to emamectin benzoate (EMB), one of the few parasiticides available for salmon lice. Drug resistance mechanisms can be complex, potentially differing among populations and involving multiple genes with additive effects (i.e., polygenic resistance). Indicators of resistance development may enable early detection and countermeasures to avoid the spread of resistance. Here, we collect sensitive Pacific L. salmonis and sensitive and resistant Atlantic L. salmonis from salmon farms, propagate in laboratory (F1), expose to EMB in bioassays, and evaluate either baseline (Atlantic only) or induced transcriptomic differences between populations. In all populations, induced responses were minor and a cellular stress response was not identified. Pacific lice did not upregulate any genes in response to EMB, but downregulated degradative enzymes and transport proteins at 50 ppb EMB. Baseline differences between sensitive and now resistant Atlantic lice were much greater than responses to exposures. All resistant lice overexpressed degradative enzymes, and resistant males, the most resistant group, overexpressed collagenases to the greatest extent. These results indicate an accumulation of baseline expression differences related to resistance.

  15. Effectiveness of isopropyl myristate/cyclomethicone D5 solution of removing cuticular hydrocarbons from human head lice (Pediculus humanus capitis

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    Barnett Eric

    2012-09-01

    Full Text Available Abstract Background In the treatment of human head lice infestation, healthcare providers are increasingly concerned about lice becoming resistant to existing pesticide treatments. Traditional pesticides, used to control these pests, have a neurological mechanism of action. This publication describes a topical solution with a non-traditional mechanism of action, based on physical disruption of the wax layer that covers the cuticle of the louse exoskeleton. This topical solution has been shown clinically to cure 82% of patients with only a 10-minute treatment time, repeated once after 7 days. All insects, including human head lice, have a wax-covered exoskeleton. This wax, composed of hydrocarbons, provides the insect with protection against water loss and is therefore critical to its survival. When the protective wax is disrupted, water loss becomes uncontrollable and irreversible, leading to dehydration and death. A specific pattern of hydrocarbons has been found in all of the head louse cuticular wax studied. Iso-octane effectively removes these hydrocarbons from human head lice’s cuticular wax. Methods A method of head louse cuticle wax extraction and analysis by gas chromatography was developed. Human head lice (Pediculus humanus capitis were collected from infested patients and subjected to any of three extraction solvents comprising either the test product or one of two solvents introduced as controls. A gas chromatograph equipped with a flame ionization detector (GC/FID was used to determine the presence of hydrocarbons in the three head lice extracts. Results In the study reported herein, the test product isopropyl myristate/cyclomethicone D5 (IPM/D5 was shown to perform comparably with iso-octane, effectively extracting the target hydrocarbons from the cuticular wax that coats the human head louse exoskeleton. Conclusions Disruption of the integrity of the insect cuticle by removal of specific hydrocarbons found in the cuticular wax

  16. Molecular detection of Acinetobacter species in lice and keds of domestic animals in Oromia Regional State, Ethiopia.

    Science.gov (United States)

    Kumsa, Bersissa; Socolovschi, Cristina; Parola, Philippe; Rolain, Jean-Marc; Raoult, Didier

    2012-01-01

    This study was conducted to determine the presence of Acinetobacter and Rickettsia species DNA in lice and Melophagus ovinus (sheep ked) of animals from Oromia Regional State in Ethiopia. From September through November 2011, a total of 207 cattle, 85 sheep, 47 dogs and 16 cats were examined for ectoparasites. Results of morphological identification revealed several species of ectoparasites: Linognathus vituli (L. vituli), Bovicola bovis (B. bovis) and Solenopotes capillatus (S. capillatus) on cattle; B. ovis and Melophagus ovinus (M. ovinus) on sheep; and Heterodoxus spiniger (H. spiniger) on dogs. There was a significantly (p≤0.0001) higher prevalence of L. vituli observed in cattle than both S. capillatus and B. bovis. Molecular identification of lice using an 18S rRNA gene analysis confirms the identified lice species by morphological methods. We detected different Acinetobacter species among lice (11.1%) and keds (86.4%) including A. soli in L. vituli of cattle, A. lowffii in M. ovinus of sheep, A. pittii in H. spiniger of dogs, 1 new Acinetobacter spp. in M. ovinus and 2 new Acinetobacter spp. in H. spiniger of dogs using partial rpoB gene sequence analysis. There was a significantly higher prevalence of Acinetobacter spp. in keds than in lice (p≤0.00001). Higher percentage of Acinetobacter spp. DNA was detected in H. spiniger than in both B. ovis and L. vituli (p≤0.00001). Carbapenemase resistance encoding genes for blaOXA-23, blaOXA-24, blaOXA-58, blaNDM-1 and blaOXA-51 were not found in any lice and keds. These findings suggest that synanthropic animals and their ectoparasites might increase the risk of human exposure to zoonotic pathogens and could be a source for Acinetobacter spp. infections in humans. However, additional epidemiological data are required to determine whether ectoparasites of animals can act as environmental reservoirs and play a role in spreading these bacteria to both animal and human hosts.

  17. Fragments analysis of Marajoara pubic covers using a portable system of X-ray fluorescence and multivariate statistics

    International Nuclear Information System (INIS)

    Freitas, Renato; Rabello, Angela; Lima, Tania

    2011-01-01

    Full text: In this work it was characterized the elemental composition of 102 fragments of Marajoara pubic covers, belonging to the National Museum collection, using EDXRF and multivariate statistics analysis. The objective was to identify possible groups of samples that presented similar characteristics. This information will be useful in the development of a systematic classification of these artifacts. Provenance studies of ancient ceramics are based on the assumption that pottery produced from a specific clay will present a similar chemical composition, which will distinguish them from pottery produced from a different clay. In this way, the pottery is assigned to particular production groups, which are then correlated with their respective origins. EDXRF measurements were carried out with a portable system, developed in the Nuclear Instrumentation Laboratory, consisting of an X-ray tube Oxford TF3005 with tungsten (W) anode, operating at 25 kV and 100 μA, and a Si-PIN XR-100CR detector from Amptek. In each one of the 102 fragments, six points were analyzed (three in the front part and three in the reverse) with an acquisition time of 600 s and a beam collimation of 2 mm. The spectra were processed and analyzed using the software QXAS-AXIL from IAEA. PCA was applied to the XRF results revealing a clear cluster separation to the samples. (author)

  18. Prevalence of head lice infestation and pediculicidal effect of permethrine shampoo in primary school girls in a low-income area in southeast of Iran.

    Science.gov (United States)

    Soleimani-Ahmadi, Moussa; Jaberhashemi, Seyed Aghil; Zare, Mehdi; Sanei-Dehkordi, Alireza

    2017-07-24

    Head lice infestation is a common public health problem that is most prevalent in primary school children throughout the world, especially in developing countries including different parts of Iran. This study aimed to determine the prevalence and risk factors associated with head lice infestation and pediculicidal effect of 1% permethrin shampoo in primary schools girls of Bashagard County, one of the low socioeconomic areas in southeast of Iran. In this interventional study six villages with similar demographical situations were selected and randomly assigned into intervention and control areas. In each area 150 girl students aged 7-12 years were selected randomly and screened for head lice infestation by visual scalp examination. In intervention area, treatment efficacy of 1% permethrin shampoo was evaluated via re-examination for infestation after one, two, and three weeks. Pre-tested structured questionnaire was used to collect data on socio-demographic and associated factors of head lice infestation. The prevalence of head lice infestation was 67.3%. There was significant association between head lice infestation and school grade, family size, parents' literacy, bathing facilities, frequency of hair washing, and use of shared articles (p shampoo for head lice treatment was 29.2, 68.9, and 90.3% after the first, second, and third weeks, respectively. The head lice infestation is a health problem in primary school girls of Bashagard County. Improvement of socioeconomic status and providing appropriate educational programs about head lice risk factors and prevention can be effective for reduction of infestation in this area. This trial has been registered and approved by Hormozgan University of Medical Sciences ethical committee (Trial No.764). Trial registration date: March 17 2014.

  19. A Study of Fish Lice (Argulus Sp. Infection in Freshwater Food Fish

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    Aalberg K.

    2016-09-01

    Full Text Available Argulus sp., commonly referred to as fish lice, are crustacean ectoparasites of fishes. The hematophagous parasites attach to and feed off the integument of their hosts. Outbreaks of epizootics have been reported worldwide, causing mass mortalities and having serious economic implications for fish farms and culture efforts. Argulus fish lice may also serve as vectors of infectious diseases and as intermediate hosts of other parasites. Two native European species, A. foliaceus and A. coregoni, as well as the invasive Japanese fish louse A. japonicus, have previously been recorded in Slovakia. This study investigated samples collected at fish farms and culture sites of Common carp (Cyprinus carpio L., Pike-perch (Sander lucioperca L. and Brook trout (Salvelinus fontinalis M. in Eastern Slovakia, as well as samples collected from live fish imported to the Slovak Republic. A quantitative description of the of Argulus sp. was recorded from each locality. Samples from Common carp were identified as the invasive A. japonicus, and samples from Pike-perch and Brook trout were identified as A. foliaceus. Evidence of a mixed infection of Pike-perch with both A. foliaceus and A. japonicus was found in samples from Zemplínska Šírava, which was substantiated by electron microscopic examination. Morphometric characteristics were measured and averages and ranges produced for each species and sex.

  20. Control of head lice with a coconut-derived emulsion shampoo.

    Science.gov (United States)

    Connolly, M; Stafford, K A; Coles, G C; Kennedy, C T C; Downs, A M R

    2009-01-01

    To evaluate a novel coconut-derived emulsion (CDE) shampoo against head lice infestation in children. A school trial in which pupils were treated on days 0 and 7 and checked on days 8 and 15 and a family trial where product was applied by parents three times in 2 weeks or used as a cosmetic shampoo and checked on days 14 and days 70. UK schools in Bristol and Western-super-Mare and families in Northern Somerset. Numbers of children free from infestation after treatment. In the school trial, percentage cures at day 8 were 14% (permethrin, n=7) and 61% (CDE, n=37). In the family trial where all family members were treated, cure rate was 96% (n=28), and if the shampoo was subsequently used as a cosmetic shampoo, only 1 of 12 children became re-infested after 10 weeks. CDE shampoo is a novel effective method of controlling head lice and used after treatment as a cosmetic shampoo can aid in the reduction of re-infestation.

  1. A screening of multiple classes of pharmaceutical compounds for effect on preadult salmon lice Lepeophtheirus salmonis.

    Science.gov (United States)

    Aaen, S M; Horsberg, T E

    2016-10-01

    The salmon louse, Lepeophtheirus salmonis Krøyer, is the major obstacle facing a sustainable future for farmers of salmonids in the North Atlantic Ocean. Medicinal compounds have been the most utilized tool to prevent salmon lice infestation; however, the active compounds have become less effective or considered environmentally unfriendly in the past years. Novel medicinal compounds are thus highly desired. In two experiment series, 26 medicinal compounds were screened for their efficacy against salmon lice, in a 30-min exposure and 24-h exposure, respectively. Pyriprole, imidacloprid, cartap and spinetoram were effective at 50 mg L(-1) in the short-time exposure. In the 24-h exposure, pyriprole, propoxur, cartap, imidacloprid, fenoxycarb, pyriproxyfen, nitenpyram, spinetoram, spiromesifen and diflubenzuron induced a high level of immobilization at 5 mg L(-1) . The EC50 values of the effective compounds were calculated in further titration studies for both exposure periods. Several physiological and biochemical pathways were discovered as possible targets for medicinal intervention against the salmon louse. © 2016 John Wiley & Sons Ltd.

  2. Evaluating bath treatment effectiveness in the control of sea lice burdens on Atlantic salmon in New Brunswick, Canada.

    Science.gov (United States)

    Gautam, R; Vanderstichel, R; Boerlage, A S; Revie, C W; Hammell, K L

    2017-07-01

    The use of medicinal bath treatment for sea lice is becoming more common, due to increasing resistance to in-feed treatments with emamectin benzoate. Common treatment modalities in New Brunswick, Canada, include Salmosan administered by tarpaulin or wellboat, and Paramove administered by wellboat. In this study, we assessed the effectiveness of these treatment modalities in the field between 2010 and 2015 using a web-based sea lice data management system (Fish-iTrends © ). Effectiveness was evaluated for adult female (AF) and for pre-adult and adult male (PAAM) life stages separately. We also investigated the impact of variability in pretreatment lead and post-treatment lag time on effectiveness measures. There were 1185 treatment events at 57 farms that uniquely matched our pre- and post-treatment count criteria. The effectiveness of treatment modality was significantly influenced by season, pretreatment level of sea lice and by lead and lag times. In summer, Salmosan administered by tarpaulin had the greatest effectiveness on both AF and PAAM, when pretreatment levels were above 10 sea lice; whereas in autumn, the performance of treatment modalities varied significantly, depending on the pretreatment levels for the life stages. Ignoring the lead or lag time effect generally resulted in an underestimation of treatment effectiveness. © 2016 John Wiley & Sons Ltd.

  3. Commercial trials using emamectin benzoate to control sea lice Lepeophtheirus salmonis infestations in Atlantic salmon Salmo salar.

    Science.gov (United States)

    Stone, J; Sutherland, I H; Sommerville, C; Richards, R H; Varma, K J

    2000-06-19

    Two trials were conducted at commercial salmon farms to evaluate the efficacy of emamectin benzoate (Slice, 0.2% aquaculture pre-mix, Schering-Plough Animal Health) as a treatment for sea lice Lepeophtheirus salmonis (Krøyer) and Caligus elongatus Nordmann infestations in Atlantic salmon Salmo salar L. Trials were carried out in 15 m2 commercial sea pens, at temperatures of 5.5 to 7.5 degrees C and 10.8 to 13.8 degrees C. Each pen was stocked with 14,000 to 17,500 fish with mean weights of 0.44 to 0.74 and 1.33 to 1.83 kg. Fish were naturally infested with sea lice at the start of each trial. At Day -1, samples of 10 or 15 fish were taken from each pen to determine pre-treatment numbers of lice. Emamectin benzoate was administered in feed, to 4 replicate pens, at a dose of 50 micrograms kg-1 biomass d-1 for 7 consecutive days (Days 0 to 6). Sea lice were counted again, between Days 7 and 77, and comparisons made with untreated control fish. Despite adverse weather conditions, wide variations in fish weights and exposure to new infestations, treatment was effective against chalimus and motile stages of L. salmonis. In the autumn trial, efficacy at Day 27 was 89%, and lice numbers remained lower on treated fish than on control fish 64 d from the start of treatment. In the winter trial, reductions in lice numbers at low temperatures were slower but good efficacy was achieved by Day 35. Although control fish had to be treated with hydrogen peroxide at Day 21, fish treated only with emamectin benzoate on Days 0 to 6 still had 89% fewer lice than control fish at Day 35. There were very few C. elongatus present, but at the end of both trials numbers were lower on treated fish. No adverse effects were associated with treatment of fish with emamectin benzoate.

  4. Mapping the social network: tracking lice in a wild primate (Microcebus rufus population to infer social contacts and vector potential

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    Zohdy Sarah

    2012-03-01

    Full Text Available Abstract Background Studies of host-parasite interactions have the potential to provide insights into the ecology of both organisms involved. We monitored the movement of sucking lice (Lemurpediculus verruculosus, parasites that require direct host-host contact to be transferred, in their host population of wild mouse lemurs (Microcebus rufus. These lemurs live in the rainforests of Madagascar, are small (40 g, arboreal, nocturnal, solitary foraging primates for which data on population-wide interactions are difficult to obtain. We developed a simple, cost effective method exploiting the intimate relationship between louse and lemur, whereby individual lice were marked, without removal from their host, with an individualized code, and tracked throughout the lemur population. We then tested the hypotheses that 1 the frequency of louse transfers, and thus interactions, would decrease with increasing distance between paired individual lemurs; 2 due to host polygynandry, social interactions and hence louse transfers would increase during the onset of the breeding season; and 3 individual mouse lemurs would vary in their contributions to the spread of lice. Results We show that louse transfers involved 43.75% of the studied lemur population, exclusively males. Louse transfers peaked during the breeding season, perhaps due to increased social interactions between lemurs. Although trap-based individual lemur ranging patterns are restricted, louse transfer rate does not correlate with the distance between lemur trapping locales, indicating wider host ranging behavior and a greater risk of rapid population-wide pathogen transmission than predicted by standard trapping data alone. Furthermore, relatively few lemur individuals contributed disproportionately to the rapid spread of lice throughout the population. Conclusions Using a simple method, we were able to visualize exchanges of lice in a population of cryptic wild primates. This method not only

  5. Eastern Baltic region vs. Western Europe: modelling age related changes in the pubic symphysis and the auricular surface.

    Science.gov (United States)

    Jatautis, Šarūnas; Jankauskas, Rimantas

    2018-02-01

    Objectives. The present study addresses the following two main questions: a) Is the pattern of skeletal ageing observed in well-known western European reference collections applicable to modern eastern Baltic populations, or are population-specific standards needed? b) What are the consequences for estimating the age-at-death distribution in the target population when differences in the estimates from reference data are not taken into account? Materials and methods. The dataset consists of a modern Lithuanian osteological reference collection, which is the only collection of this type in the eastern Baltic countries (n = 381); and two major western European reference collections, Coimbra (n = 264) and Spitalfields (n = 239). The age-related changes were evaluated using the scoring systems of Suchey-Brooks (Brooks & Suchey 1990) and Lovejoy et al. (1985), and were modelled via regression models for multinomial responses. A controlled experiment based on simulations and the Rostock Manifesto estimation protocol (Wood et al. 2002) was then carried out to assess the effect of using estimates from different reference samples and different regression models on estimates of the age-at-death distribution in the hypothetical target population. Results. The following key results were obtained in this study. a) The morphological alterations in the pubic symphysis were much faster among women than among men at comparable ages in all three reference samples. In contrast, we found no strong evidence in any of the reference samples that sex is an important factor to explain rate of changes in the auricular surface. b) The rate of ageing in the pubic symphysis seems to be similar across the three reference samples, but there is little evidence of a similar pattern in the auricular surface. That is, the estimated rate of age-related changes in the auricular surface was much faster in the LORC and the Coimbra samples than in the Spitalfields sample. c) The results of simulations

  6. Inter-rater reliability of assessment of levator ani muscle strength and attachment to the pubic bone in nulliparous women.

    Science.gov (United States)

    van Delft, K; Schwertner-Tiepelmann, N; Thakar, R; Sultan, A H

    2013-09-01

    The modified Oxford scale (MOS) has been found previously to have poor inter-rater reliability, whereas digital assessment of levator ani muscle (LAM) attachment to the pubic bone has been shown to have acceptable reliability. Our aim was to evaluate inter-rater reliability of the validated MOS and to develop a reliable classification system for digital assessment of LAM attachment, correlating this to findings on transperineal ultrasound (TPUS) examination. Evaluation of the MOS by palpation was performed in nulliparous women by two investigators. LAM attachment was evaluated using digital palpation, for which a novel classification system was developed with four grades based on the position of the attachment and presence of discernible muscle. Findings were compared with those on TPUS examination. Inter-rater reliability was assessed using Cohen's kappa statistic. Twenty-five nulliparous women were examined. There was agreement in MOS scores between the investigators in 64% of women (n = 16), with a kappa of 0.66 (indicating substantial agreement). There was agreement in palpation of LAM attachment using the new grading system in 96% of women (n = 24), with a kappa of 0.90 (indicating almost perfect agreement). TPUS examination did not show LAM avulsion in any woman, with the exception of one with a partial avulsion. In this group of nulliparous patients, there was substantial agreement between the two investigators in evaluation of the MOS and there was good agreement between grades of LAM attachment using the new classification system, which correlated with findings on TPUS examination. It therefore appears that these results are reproducible in nulliparous women and the techniques can be readily learned and reliably incorporated into clinical practice and research after appropriate training. Further research is required to establish clinical utility of the grading system for LAM attachment in postpartum women and in women with symptomatic pelvic organ

  7. Determinación de sílice libre en materias primas para la industria del cemento

    Directory of Open Access Journals (Sweden)

    Calleja, J.

    1965-12-01

    Full Text Available Not availableLa existencia de sílice libre en las materias primas y, por lo tanto, en los crudos empleados en la fabricación de cemento Portland es desventajosa por la escasa reactividad de esta sílice, sobre todo si no posee una finura suficiente. La determinación de sílice cuarzosa en tales materiales es decisiva para la buena marcha de la clinkerización en fábricas cuyas materias primas adolecen de la desventaja de contenerla. Los métodos propugnados suelen ser poco reproducibles y precisos, y dan resultados bastante erráticos. En el presente trabajo, y después de haber ensayado diversos métodos citados en la bibliografía, se describe y recomienda un procedimiento, basado en el ataque del material por ácido pirofosfórico. Las variables que juegan en el proceso descrito son el tamaño de grano de la muestra, en particular el de la sílice libre, la temperatura y el tiempo de ataque. En las condiciones que se especifican se consigue una disolución prácticamente total de los silicatos, sin que apenas se· disuelvan las partículas más finas de cuarzo. Con ello se consigue una exactitud y una precisión tal como pone de manifiesto el análisis estadístico de los resultados obtenidos al determinar sílice libre en diversas materias primas y crudos para cemento.

  8. High level efficacy of lufenuron against sea lice (Lepeophtheirus salmonis) linked to rapid impact on moulting processes.

    Science.gov (United States)

    Poley, Jordan D; Braden, Laura M; Messmer, Amber M; Igboeli, Okechukwu O; Whyte, Shona K; Macdonald, Alicia; Rodriguez, Jose; Gameiro, Marta; Rufener, Lucien; Bouvier, Jacques; Wadowska, Dorota W; Koop, Ben F; Hosking, Barry C; Fast, Mark D

    2018-03-13

    Drug resistance in the salmon louse Lepeophtheirus salmonis is a global issue for Atlantic salmon aquaculture. Multiple resistance has been described across most available compound classes with the exception of the benzoylureas. To target this gap in effective management of L. salmonis and other species of sea lice (e.g. Caligus spp.), Elanco Animal Health is developing an in-feed treatment containing lufenuron (a benzoylurea) to be administered prior to seawater transfer of salmon smolts and to provide long-term protection of salmon against sea lice infestations. Benzoylureas disrupt chitin synthesis, formation, and deposition during all moulting events. However, the mechanism(s) of action are not yet fully understood and most research completed to date has focused on insects. We exposed the first parasitic stage of L. salmonis to 700 ppb lufenuron for three hours and observed over 90% reduction in survival to the chalimus II life stage on the host, as compared to vehicle controls. This agrees with a follow up in vivo administration study on the host, which showed >95% reduction by the chalimus I stage. Transcriptomic responses of salmon lice exposed to lufenuron included genes related to moulting, epithelial differentiation, solute transport, and general developmental processes. Global metabolite profiles also suggest that membrane stability and fluidity is impacted in treated lice. These molecular signals are likely the underpinnings of an abnormal moulting process and cuticle formation observed ultrastructurally using transmission electron microscopy. Treated nauplii-staged lice exhibited multiple abnormalities in the integument, suggesting that the coordinated assembly of the epi- and procuticle is impaired. In all cases, treatment with lufenuron had rapid impacts on L. salmonis development. We describe multiple experiments to characterize the efficacy of lufenuron on eggs, larvae, and parasitic stages of L. salmonis, and provide the most comprehensive

  9. Cristalización de vidrios ricos en sílice preparados mediante sol-gel en el sistema alúmina-circona-sílice

    Directory of Open Access Journals (Sweden)

    Popa, M.

    2004-02-01

    Full Text Available The crystallization of ZrSiO4 and its evolution with temperature from chemically homogeneous alumina-silica-zirconia powders prepared by sol-gel method from alcoxide mixtures was studied in the silica-rich region. A glass with the same composition was obtained by quenching in water from the melt. The gel-glasses evolution and microstructure were studied by means of XRD, IR and SEM/EDX, in the range of temperatures up to 1650oC. The materials consisted mainly of amorphous phase up to 1200oC, at which partial crystallization of cristobalite was observed. IR spectroscopy analysis showed zircon bands after thermal treatment at 1200oC. The crystallization of zircon and zirconia particles at 1550oC was confirmed by SEM/EDX analysis. At 1650oC the only stable crystalline phase observed after 40 h of thermal treatment was zircon.

    La cristalización de ZrSiO4 y su evolución con la temperatura se ha estudiado en la región rica en sílice, a partir de polvos amorfos y químicamente homogéneos de alumina-sílice-circona, preparados mediante método sol-gel usando mezclas de alcóxidos. Se obtuvo un vidrio con idéntica composición mediante enfriamiento rápido por inmersión en agua del material fundido. La evolución y la microestructura de los vidrios obtenidos se estudió mediante difracción de rayos X, infrarrojos, microscopía electrónica de barrido y análisis químico, en el rango de temperaturas hasta 1650oC. Los materiales están formados principalmente por fase amorfa hasta 1200oC, temperatura a la cual se observa la cristalización parcial de cristobalita. El análisis por espectroscopía de infrarrojos muestra bandas de circón en muestras tratadas térmicamente por encima de 1200oC. Las observaciones mediante microscopía electrónica confirman la cristalización de partículas de circón y circona a 1550oC. A 1650oC la cristobalita ha fundido y la única fase cristalina estable detectada mediante XRD tras 40 h a esta temperatura

  10. Propiedades mecánicas de aerogeles híbridos de sílice

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    Piñero, M.

    2005-10-01

    Full Text Available Hybrids silica aerogels have been obtained by means the high power ultrasounds application in the precursor liquid and the drying of the wet gel under the supercritical condition of ethanol. The organic chains don’t degrade thermally and accelerate the network shrinkage process by thermal activation. The ultrasounds induce an organic chain crosslinking bonding to the porous silica clusters and avoid its cyclidation. The failure tests by uniaxial compression show an increase of the rupture modulus, passing from 8 MPa for a pure silica aerogel to 24 MPa for an aerogel with a 50 weight % of polymer content. It is also noted a continuous decrease of the Young’s modulus with the polymer content (from 100 to 56 MPa. These hybrid aerogels behave as elastomers with up to a 50% strain, showing a decrease in the relaxation viscoelastic modulus.

    Se han obtenido aerogeles híbridos de sílice orgánico-inorgánico por aplicación de ultrasonidos de alta potencia en los precursores líquidos y posterior secado del gel húmedo en condiciones supercríticas en etanol. Las cadenas orgánicas no se degradan térmicamente y aceleran el proceso de contracción de la red por activación térmica. Los ultrasonidos inducen un entrecruzamiento de cadenas orgánicas que unen los cúmulos de sílice porosa y evitan su ciclidación. Los ensayos de ruptura en compresión uniaxial indicaron un aumento del módulo de ruptura, pasando de 8 MPa para el aerogel de sílice pura hasta 24 MPa para un aerogel de 50% en peso de contenido de polímero. Se observa asimismo una disminución continua en el módulo de Young con el contenido de polímero (de 100 a 56 MPa. Estos aerogeles híbridos se comportan como elastómeros con deformaciones de hasta el 50%, mostrando una disminución del módulo de relajación viscoelástica.

  11. An enhanced computational method for age-at-death estimation based on the pubic symphysis using 3D laser scans and thin plate splines.

    Science.gov (United States)

    Stoyanova, Detelina; Algee-Hewitt, Bridget F B; Slice, Dennis E

    2015-11-01

    The pubic symphysis is frequently used to estimate age-at-death from the adult skeleton. Assessment methods require the visual comparison of the bone morphology against age-informative characteristics that represent a series of phases. Age-at-death is then estimated from the age-range previously associated with the chosen phase. While easily executed, the "morphoscopic" process of feature-scoring and bone-to-phase-matching is known to be subjective. Studies of method and practitioner error demonstrate a need for alternative tools to quantify age-progressive change in the pubic symphysis. This article proposes a more objective, quantitative method that analyzes three-dimensional (3D) surface scans of the pubic symphysis using a thin plate spline algorithm (TPS). This algorithm models the bending of a flat plane to approximately match the surface of the bone and minimizes the bending energy required for this transformation. Known age-at-death and bending energy were used to construct a linear model to predict age from observed bending energy. This approach is tested with scans from 44 documented white male skeletons and 12 casts. The results of the surface analysis show a significant association (regression p-value = 0.0002 and coefficient of determination = 0.2270) between the minimum bending energy and age-at-death, with a root mean square error of ≈19 years. This TPS method yields estimates comparable to established methods but offers a fully integrated, objective and quantitative framework of analysis and has potential for use in archaeological and forensic casework. © 2015 Wiley Periodicals, Inc.

  12. Variation in mitochondrial minichromosome composition between blood-sucking lice of the genus Haematopinus that infest horses and pigs.

    Science.gov (United States)

    Song, Simon D; Barker, Stephen C; Shao, Renfu

    2014-03-31

    The genus Haematopinus contains 21 species of blood-sucking lice, parasitizing both even-toed ungulates (pigs, cattle, buffalo, antelopes, camels and deer) and odd-toed ungulates (horses, donkeys and zebras). The mitochondrial genomes of the domestic pig louse, Haematopinus suis, and the wild pig louse, Haematopinus apri, have been sequenced recently; both lice have fragmented mitochondrial genomes with 37 genes on nine minichromosomes. To understand whether the composition of mitochondrial minichromosomes and the gene content and gene arrangement of each minichromosome are stable within the genus, we sequenced the mitochondrial genome of the horse louse, Haematopinus asini. We used a PCR-based strategy to amplify four mitochondrial minichromosomes in near full-length, and then amplify the entire coding regions of all of the nine mitochondrial minichromosomes of the horse louse. These amplicons were sequenced with an Illumina Hiseq platform. We identified all of the 37 mitochondrial genes typical of bilateral animals in the horse louse, Haematopinus asini; these genes are on nine circular minichromosomes. Each minichromosome is 3.5-5.0 kb in size and consists of a coding region and a non-coding region except R-nad4L-rrnS-C minichromosome, which contains two coding regions and two non-coding regions. Six of the nine minichromosomes of the horse louse have their counterparts in the pig lice with the same gene content and gene arrangement. However, the gene content and arrangement of the other three minichromosomes of the horse louse, including R-nad4L-rrnS-C, are different from that of the other three minichromosomes of the pig lice. Comparison between the horse louse and the pig lice revealed variation in the composition of mitochondrial minichromosomes within the genus Haematopinus, which can be accounted for by gene translocation events between minichromosomes. The current study indicates that inter-minichromosome recombination plays a major role in generating the

  13. Molecular detection of Acinetobacter species in lice and keds of domestic animals in Oromia Regional State, Ethiopia.

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    Bersissa Kumsa

    Full Text Available This study was conducted to determine the presence of Acinetobacter and Rickettsia species DNA in lice and Melophagus ovinus (sheep ked of animals from Oromia Regional State in Ethiopia. From September through November 2011, a total of 207 cattle, 85 sheep, 47 dogs and 16 cats were examined for ectoparasites. Results of morphological identification revealed several species of ectoparasites: Linognathus vituli (L. vituli, Bovicola bovis (B. bovis and Solenopotes capillatus (S. capillatus on cattle; B. ovis and Melophagus ovinus (M. ovinus on sheep; and Heterodoxus spiniger (H. spiniger on dogs. There was a significantly (p≤0.0001 higher prevalence of L. vituli observed in cattle than both S. capillatus and B. bovis. Molecular identification of lice using an 18S rRNA gene analysis confirms the identified lice species by morphological methods. We detected different Acinetobacter species among lice (11.1% and keds (86.4% including A. soli in L. vituli of cattle, A. lowffii in M. ovinus of sheep, A. pittii in H. spiniger of dogs, 1 new Acinetobacter spp. in M. ovinus and 2 new Acinetobacter spp. in H. spiniger of dogs using partial rpoB gene sequence analysis. There was a significantly higher prevalence of Acinetobacter spp. in keds than in lice (p≤0.00001. Higher percentage of Acinetobacter spp. DNA was detected in H. spiniger than in both B. ovis and L. vituli (p≤0.00001. Carbapenemase resistance encoding genes for blaOXA-23, blaOXA-24, blaOXA-58, blaNDM-1 and blaOXA-51 were not found in any lice and keds. These findings suggest that synanthropic animals and their ectoparasites might increase the risk of human exposure to zoonotic pathogens and could be a source for Acinetobacter spp. infections in humans. However, additional epidemiological data are required to determine whether ectoparasites of animals can act as environmental reservoirs and play a role in spreading these bacteria to both animal and human hosts.

  14. Head Lice

    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 ...

  15. Body Lice

    Science.gov (United States)

    ... to live in crowded, unclean conditions. They include: War refugees Homeless people Victims of natural disasters Dogs, ... logo are trademarks of Mayo Foundation for Medical Education and Research. © 1998-2018 Mayo Foundation for Medical ...

  16. Intrapartum Pubic Symphysis Disruption

    African Journals Online (AJOL)

    Dhar S, Anderton JM. Rupture of the symphysis pubis during labor. Clin Orthop Relat Res 1992;283:252‑7. 6. Putschar WG. The structure of the human symphysis pubis with special consideration of parturition and its sequelae. Am. J Phys Anthropol 1976;45 (3 pt 2):589‑94. 7. Kharrazi FD, Rodgers WB, Kennedy JG, Lhowe ...

  17. Lice (Insecta: Phthiraptera) From species of the families Furnariidae, Tyrannidae, Turdidae and icteridae (Aves: Passeriformes) from Chile

    OpenAIRE

    González-Acuña, Daniel; Vergara, Francisco; Moreno, Lucila; Barrientos, Carlos; Ardiles, Karen; Cicchino, Armando

    2006-01-01

    A total of 185 birds (nine captured alive and 176 preserved in a museum), belonging to the families Furnariidae (n=14), Tyrannidae (n=4), Turdidae (n=24) and Icteridae (n=143) (Aves: Passeriformes) were searched for lice (Phthiraptera: Philopteridae, Menoponidae). The species collected and identified were: Furnaricola titicacae Carriker 1949 from Phleocryptes melanops (Vieillot 1817), and Picicola cuniculariae Cicchino 1981 from Geositta rufipennis fasciata (Burmeister 1860) (Furnariidae); Pi...

  18. The Effect of Eradication of Lice on the Occurrence of the Grain Defect Light Flecks and Spots on Cattle Hides

    Science.gov (United States)

    Nafstad, O; Grønstøl, H

    2001-01-01

    The influence of an eradication programme for lice on the prevalence of light flecks and spots on cattle hides was studied in 33 dairy cattle herds during a period of two and a half years. Lice were eradicated from the main group of herds after 9 to 12 months and the quality of the hides before and after treatment was compared. Hides from slaughtered animals were collected during the study period, tanned and examined with special emphasis on the occurrence of the grain damage light flecks and spots. The prevalence of hides without light flecks and spots increased from 24.2% before treatment to 61.6% after treatment. The prevalence of hides free from the damage increased significantly in all examined anatomical regions. The improvement in hide quality was most marked in the shoulders and neck region which corresponded to the major predilection site of cattle lice. The prevalence of hides with light flecks and spots started to decrease in the first period (2–40 days) after eradication. The changes after treatment suggested that most healing process took place over a period of about 4 months. The eradication programme eliminated the seasonal variation in the prevalence of light flecks and spots which was present before treatment. PMID:11455906

  19. The Effect of Eradication of Lice on the Occurrence of the Grain Defect Light Flecks and Spots on Cattle Hides

    Directory of Open Access Journals (Sweden)

    Grønstøl H

    2001-03-01

    Full Text Available The influence of an eradication programme for lice on the prevalence of light flecks and spots on cattle hides was studied in 33 dairy cattle herds during a period of two and a half years. Lice were eradicated from the main group of herds after 9 to 12 months and the quality of the hides before and after treatment was compared. Hides from slaughtered animals were collected during the study period, tanned and examined with special emphasis on the occurrence of the grain damage light flecks and spots. The prevalence of hides without light flecks and spots increased from 24.2% before treatment to 61.6% after treatment. The prevalence of hides free from the damage increased significantly in all examined anatomical regions. The improvement in hide quality was most marked in the shoulders and neck region which corresponded to the major predilection site of cattle lice. The prevalence of hides with light flecks and spots started to decrease in the first period (2–40 days after eradication. The changes after treatment suggested that most healing process took place over a period of about 4 months. The eradication programme eliminated the seasonal variation in the prevalence of light flecks and spots which was present before treatment.

  20. Laboratory and clinical trials of cocamide diethanolamine lotion against head lice

    Directory of Open Access Journals (Sweden)

    Ian F. Burgess

    2015-11-01

    Full Text Available Context. During the late 1990s, insecticide resistance had rendered a number of treatment products ineffective; some companies saw this as an opportunity to develop alternative types of treatment. We investigated the possibility that a surfactant-based lotion containing 10% cocamide diethanolamine (cocamide DEA was effective to eliminate head louse infestation.Settings and Design. Initial in vitro testing of the lotion formulation versus laboratory reared body/clothing lice, followed by two randomised, controlled, community-based, assessor blinded, clinical studies.Materials and Methods. Preliminary laboratory tests were performed by exposing lice or louse eggs to the product using a method that mimicked the intended use. Clinical Study 1: Children and adults with confirmed head louse infestation were treated by investigators using a single application of aqueous 10% cocamide DEA lotion applied for 60 min followed by shampooing or a single 1% permethrin creme rinse treatment applied to pre-washed hair for 10 min. Clinical Study 2: Compared two treatment regimens using 10% cocamide DEA lotion that was concentrated by hair drying. A single application left on for 8 h/overnight was compared with two applications 7 days apart of 2 h duration, followed by a shampoo wash.Results. The initial laboratory tests showed a pediculicidal effect for a 60 min application but limited ovicidal effect. A longer application time of 8 h or overnight was found capable of killing all eggs but this differed between batches of test material. Clinical Study 1: Both treatments performed badly with only 3/23 (13% successful treatments using cocamide DEA and 5/25 (23.8% using permethrin. Clinical Study 2: The single overnight application of cocamide DEA concentrated by hair drying gave 10/56 (17.9% successes compared with 19/56 (33.9% for the 2 h application regimen repeated after 1 week. Intention to treat analysis showed no significant difference (p = 0.0523 between the

  1. Variation in pre-treatment count lead time and its effect on baseline estimates of cage-level sea lice abundance.

    Science.gov (United States)

    Gautam, R; Boerlage, A S; Vanderstichel, R; Revie, C W; Hammell, K L

    2016-11-01

    Treatment efficacy studies typically use pre-treatment sea lice abundance as the baseline. However, the pre-treatment counting window often varies from the day of treatment to several days before treatment. We assessed the effect of lead time on baseline estimates, using historical data (2010-14) from a sea lice data management programme (Fish-iTrends). Data were aggregated at the cage level for three life stages: (i) chalimus, (ii) pre-adult and adult male and (iii) adult female. Sea lice counts were log-transformed, and mean counts by lead time relative to treatment day were computed and compared separately for each life stage, using linear mixed models. There were 1,658 observations (treatment events) from 56 sites in 5 Bay Management Areas. Our study showed that lead time had a significant effect on the estimated sea lice abundance, which was moderated by season. During the late summer and autumn periods, counting on the day of treatment gave significantly higher values than other days and would be a more appropriate baseline estimate, while during spring and early summer abundance estimates were comparable among counts within 5 days of treatment. A season-based lead time window may be most appropriate when estimating baseline sea lice levels. © 2016 John Wiley & Sons Ltd.

  2. Sea lice population and sex differences in P-glycoprotein expression and emamectin benzoate resistance on salmon farms in the Bay of Fundy, New Brunswick, Canada.

    Science.gov (United States)

    Igboeli, Okechukwu O; Burka, John F; Fast, Mark D

    2014-06-01

    Parasitic sea lice are a major challenge for salmon aquaculture. This is especially due to the recent development of resistance to emamectin benzoate (EMB) in the parasite. We investigated: (1) whether EMB treatment success in Grand Manan, Bay of Fundy, NB, Canada can be explained through EMB bioassay and P-glycoprotein (P-gp) mRNA expression studies; (2) if other populations of sea lice not under EMB selective pressure possess similar EMB sensitivity as Grand Manan sea lice populations; and (3) the heritability of EMB resistance in Lepeophtheirus salmonis. EMB bioassay results indicated population, species, sex and temporal differences in EMB EC50 values. RT-qPCR analyses revealed population and sex differences in P-gp mRNA levels, correlating with the bioassay results. Laboratory-reared sea lice maintained their EMB sensitivity status up to the F3 generation. Caligus elongatus, collected from Grand Manan showed more than twofold lower EMB EC50 values compared with L. salmonis collected from the same site. Concurrent exposure to EMB and verapamil yielded no increase in C. elongatus sensitivity to the parasiticide. Sea lice bioassay and P-gp mRNA studies can be used to track EMB resistance and sex differences in EMB sensitivity and P-gp mRNA levels exist in the parasite. © 2013 Society of Chemical Industry.

  3. Can neem oil help eliminate lice? Randomised controlled trial with and without louse combing

    Directory of Open Access Journals (Sweden)

    Christine M. Brown

    2017-06-01

    Full Text Available Background: Neem oil and wet combing with conditioner are both claimed to facilitate elimination of head louse infestation. The aim of this pilot study was to identify whether a 1% neem oil lotion showed activity itself and/or enhanced the effectiveness of combing in treating infestation. Methods: We treated 47 participants with 1% neem-based lotion on four occasions 3-4 days apart in a randomised, community based trial, analysed by intention to treat. The participants were randomly divided between two groups: One group used a grooming comb (placebo and the other a head louse detection and removal comb (wet combing with conditioner method to systematically comb the hair. Cure was defined as no lice on both Day 10 and Day 14. Results: The cure rates of 6/24 (25.0% for the placebo comb group and 8/23 (34.8% for the louse comb group were not significantly different. Conclusion: These results indicate that this formulation of neem oil was ineffective in the treatment of head louse infestations, even when accompanied by combing. Both combing methods were also ineffective, despite being implemented throughout by trained professionals.

  4. Detection of Bartonellaspp. and Rickettsiaspp. in fleas, ticks and lice collected in rural areas of Peru

    Directory of Open Access Journals (Sweden)

    Abraham G. Cáceres

    2013-12-01

    Full Text Available Bartonellosis and rickettsiosis are commonly reported in Peru. In order to detect Bartonella sp. and Rickettsiasp. in fleas, ticks and lice, specimens from five distinct locations in Peru (Marizagua, Cajaruro, Jamalca, Lonya Grande and El Milagro were collected and screened for the presence of these bacteria using PCR and later confirmation by DNA sequencing. The specimens collected were distributed in 102 pools (76 Ctenocephalides felis, 2 Ctenocephalides canis, 16 Pulex irritans, 5 Pediculus humanus, 2 Rhiphicephalus sanguineus, and 1 Boophilus spp., where Bartonellawas detected in 17 pools (6 of C. felis, 9 of P. irritans, 1 of C. canis, and 1 P. humanus. Also, Rickettsiawas detected in 76 pools (62 C. felis, 10 P. irritans, 2 P. humanus, and 2 C. canis. Bartonella clarridgeiaewas detected in C. felis, C. canisand P. irritanspools at 5.3%, 50% and 12.5%, respectively.Bartonella rochalimaewas detected in one C. felisand two P. irritanspools at 1.3% and 12.5%, respectively. Furthermore, B. henselaewas detected in one C. felispool and one P. humanuspool corresponding to 1.3% and 20%, respectively; and Bartonella spp.was also found in 5 pools of P. irritansat 31.3%. Additionally, R. feliswas detected in C. felis, C. canisand P. irritanspools at 76.3%, 100% and 37.5%, respectively; and Rickettsia spp. was detected in C. felis, P. irritansand P. humanuspools at 5.3%, 25% and 40%, respectively. These results demonstrate the circulation of these bacteria in Peru.

  5. Efectos aerodinámicos de hélices pusher sobre la configuración aerodinámica de un flap en condiciones de bajo Reynolds

    OpenAIRE

    Savloff, Nehuen; Trochez Segura, Juan M.; Algozino, Santiago; Marañón Di Leo, Julio

    2015-01-01

    Las hélices del tipo pusher se han transformado en una opción viable en el diseño de aeronaves a partir de la década del ´90. Una gran variedad de diseños se han propuesto y construido considerando la posición de la hélice detrás del ala, detrás de fuselajes, o de empenajes de cola. En muchos casos la hélice pusher resulta tener mejor eficiencia aerodinámica que la hélice tractora, debido a la menor velocidad del flujo entrante sobre la hélice por influencia del cuerpo corriente arriba. Ademá...

  6. Nonoperative Management, Rehabilitation, and Functional and Clinical Progression of Osteitis Pubis/Pubic Bone Stress in Professional Soccer Players: A Case Series.

    Science.gov (United States)

    McAleer, Stephen S; Lippie, Ed; Norman, Darcy; Riepenhof, Helge

    2017-09-01

    Study Design Case series. Background Pubic bone stress (PBS) is a common acute or chronic response of the pelvis in sports where sprinting, kicking, twisting, and cutting are the dominant movements. There are few nonoperative rehabilitation strategies for the condition reported in the literature, and the outcome of conservative treatment has not been documented. Case Description Five professional and academy soccer players complaining of pubic symphysis pain, confirmed as PBS on magnetic resonance imaging and objective assessment, were treated with a nonoperative rehabilitation program that featured functional and clinical objective markers as progression criteria. Interventions in the acute phase included pharmacological and physical therapeutic modalities to reduce pain initially. Rehabilitation management focused on improving range of motion at the hips and thorax, adductor strengthening, trunk and lumbopelvic stability, gym-based strength training, and field-based rehabilitation and conditioning. Clinical follow-up was performed at least 8 months following return to play. Outcomes All players demonstrated reduced or resolved pain, increased adductor squeeze strength, and return to pain-free training and match play. Return-to-training time averaged 40.6 days (range, 30-60 days) and return to play averaged 49.4 days (range, 38-72 days) within the 5 players. At final follow-up (mean, 29.6 months; range, 16-33 months), there had been no recurrences. Discussion This report of 5 cases suggests that a nonoperative protocol, using clinical and functional progression criteria, may be successful in rehabilitating athletes with PBS for return to sport within 11 weeks. Level of Evidence Therapy, level 4. J Orthop Sports Phys Ther 2017;47(9):683-690. Epub 3 Aug 2017. doi:10.2519/jospt.2017.7314.

  7. Comparison of reconstruction plate screw fixation and percutaneous cannulated screw fixation in treatment of Tile B1 type pubic symphysis diastasis: a finite element analysis and 10-year clinical experience.

    Science.gov (United States)

    Yu, Ke-He; Hong, Jian-Jun; Guo, Xiao-Shan; Zhou, Dong-Sheng

    2015-09-22

    The objective of this study is to compare the biomechanical properties and clinical outcomes of Tile B1 type pubic symphysis diastasis (PSD) treated by percutaneous cannulated screw fixation (PCSF) and reconstruction plate screw fixation (RPSF). Finite element analysis (FEA) was used to compare the biomechanical properties between PCSF and RPSF. CT scan data of one PSD patient were used for three-dimensional reconstructions. After a validated pelvic finite element model was established, both PCSF and RPSF were simulated, and a vertical downward load of 600 N was loaded. The distance of pubic symphysis and stress were tested. Then, 51 Tile type B1 PSD patients (24 in the PCSF group; 27 in the RPSF group) were reviewed. Intra-operative blood loss, operative time, and the length of the skin scar were recorded. The distance of pubic symphysis was measured, and complications of infection, implant failure, and revision surgery were recorded. The Majeed scoring system was also evaluated. The maximum displacement of the pubic symphysis was 0.408 and 0.643 mm in the RPSF and PCSF models, respectively. The maximum stress of the plate in RPSF was 1846 MPa and that of the cannulated screw in PCSF was 30.92 MPa. All 51 patients received follow-up at least 18 months post-surgery (range 18-54 months). Intra-operative blood loss, operative time, and the length of the skin scar in the PCSF group were significantly different than those in the RPSF group. No significant differences were found in wound infection, implant failure, rate of revision surgery, distance of pubic symphysis, and Majeed score. PCSF can provide comparable biomechanical properties to RPSF in the treatment of Tile B1 type PSD. Meanwhile, PCSF and RPSF have similar clinical and radiographic outcomes. Furthermore, PCSF also has the advantages of being minimally invasive, has less blood loss, and has shorter operative time and skin scar.

  8. Negligible Egg Positive Rate of Enterobius vermicularis and No Detection of Head Lice among Orphanage Children in Busan and Ulsan, Korea (2014).

    Science.gov (United States)

    Kim, Dong-Hee; Son, Hyun-Mi; Lee, Sang Hwa; Park, Mi Kyung; Kang, Shin Ae; Park, Sang Kyun; Choi, Jun-Ho; Park, Jung Ha; Yu, Hak-Sun

    2015-08-01

    To determine whether pinworm infections and head lice infestations spread among children in orphanages, 117 children from 4 orphanages in Busan-si and Ulsan-si, Korea, were examined for enterobiasis and head lice infestation between January and February 2014. The overall rate of Enterobius vermicularis egg positivity was 0.85%, whereas none of the children had head lice infestations. The rate of pinworm infection was much lower among the orphanage children compared to the rates observed in previous studies among kindergarten and primary school students. Moreover, the risk factors for enterobiasis were less frequent among these subjects than previously reported. The personal hygiene and health of the orphanage children were supervised by a regular, employed nurse through a health education program. In conclusion, pinworm infection was efficiently controlled among the children in orphanages, and this might be related to good personal hygiene practices in Korea.

  9. Field trials in Norway with SLICE (0.2% emamectin benzoate) for the oral treatment of sea lice infestation in farmed Atlantic salmon Salmo salar.

    Science.gov (United States)

    Ramstad, A; Colquhoun, D J; Nordmo, R; Sutherland, I H; Simmons, R

    2002-06-21

    Four commercial salmon farms on the West coast of Norway were recruited to a programme of field trials in which the efficacy of SLICE (0.2% emamectin benzoate; Schering-Plough Animal Health) was compared with a commercially available product, EKTOBANN (teflubenzuron 2 g kg(-1); Skretting A/S) in treating natural sea lice Lepeophtheirus salmonis infections in Atlantic salmon Salmo salmar L. At each test site, 3 fish pens were treated with each product. In total, nearly 1.2 million first-year-class fish were included in the trial, of which approximately 561,000 received emamectin benzoate at a dosage of 50 microg kg(-1) body wt d(-1), while approximately 610,000 received teflubenzuron at a dosage of 10 mg kg(-1) body wt d(-1). Medicated feed was provided at 0.5% body wt d(-1) over 7 consecutive days. Feed containing emamectin benzoate was generally well accepted by the fish and no problems were encountered in feeding the medicated diet at the desired dose. Lice numbers were counted 2 d before and 1, 7, 14 and 21 d after commencement of treatment. While treatment with both substances rapidly reduced lice numbers, pens treated with emamectin benzoate were found to harbour significantly fewer lice 14 and 21 d post-treatment. Twenty-one days following treatment with emamectin benzoate the lice abundance was reduced on average by 94%. Limited sampling outside the main study period indicated that emamectin benzoate protects against sea-lice infestation over longer periods.

  10. Salmon lice (Lepeophtheirus salmonis) showing varying emamectin benzoate susceptibilities differ in neuronal acetylcholine receptor and GABA-gated chloride channel mRNA expression.

    Science.gov (United States)

    Carmichael, Stephen N; Bron, James E; Taggart, John B; Ireland, Jacqueline H; Bekaert, Michaël; Burgess, Stewart Tg; Skuce, Philip J; Nisbet, Alasdair J; Gharbi, Karim; Sturm, Armin

    2013-06-18

    Caligid copepods, also called sea lice, are fish ectoparasites, some species of which cause significant problems in the mariculture of salmon, where the annual cost of infection is in excess of €300 million globally. At present, caligid control on farms is mainly achieved using medicinal treatments. However, the continued use of a restricted number of medicine actives potentially favours the development of drug resistance. Here, we report transcriptional changes in a laboratory strain of the caligid Lepeophtheirus salmonis (Krøyer, 1837) that is moderately (~7-fold) resistant to the avermectin compound emamectin benzoate (EMB), a component of the anti-salmon louse agent SLICE® (Merck Animal Health). Suppression subtractive hybridisation (SSH) was used to enrich transcripts differentially expressed between EMB-resistant (PT) and drug-susceptible (S) laboratory strains of L. salmonis. SSH libraries were subjected to 454 sequencing. Further L. salmonis transcript sequences were available as expressed sequence tags (EST) from GenBank. Contiguous sequences were generated from both SSH and EST sequences and annotated. Transcriptional responses in PT and S salmon lice were investigated using custom 15 K oligonucleotide microarrays designed using the above sequence resources. In the absence of EMB exposure, 359 targets differed in transcript abundance between the two strains, these genes being enriched for functions such as calcium ion binding, chitin metabolism and muscle structure. γ-aminobutyric acid (GABA)-gated chloride channel (GABA-Cl) and neuronal acetylcholine receptor (nAChR) subunits showed significantly lower transcript levels in PT lice compared to S lice. Using RT-qPCR, the decrease in mRNA levels was estimated at ~1.4-fold for GABA-Cl and ~2.8-fold for nAChR. Salmon lice from the PT strain showed few transcriptional responses following acute exposure (1 or 3 h) to 200 μg L-1 of EMB, a drug concentration tolerated by PT lice, but toxic for S lice

  11. Efficacy and Safety of a Mineral Oil-Based Head Lice Shampoo: A Randomized, Controlled, Investigator-Blinded, Comparative Study.

    Science.gov (United States)

    Wolf, Luise; Eertmans, Frank; Wolf, Doerte; Rossel, Bart; Adriaens, Els

    2016-01-01

    Due to increased resistance and safety concerns with insecticide-based pediculicides, there is growing demand for head lice treatments with a physical mode of action. Certain mineral oils kill lice by blocking spiracles or by disrupting the epicuticular wax layer. The present study was performed to evaluate efficacy and safety of a mineral oil-based shampoo. This randomized, controlled, investigator-blinded, monocentric study (EudraCT registration no. 2014-002918-23) was performed from October 2014-June 2015 in Germany. A mineral oil shampoo (Mosquito® Med Läuse Shampoo 10 in Germany, Paranix or Silcap shampoo elsewhere), registered as medical device, was compared to a conventional, locally reimbursed, pyrethroid-based pediculicide (Goldgeist® Forte solution). In total, 107 patients (>1 year) with confirmed head lice infestation were included (test arm: n = 53; control arm: n = 54). All subjects received two applications of either test or control product at day 0 and day 7, according to the instructions for use. Efficacy and safety was evaluated directly, 1h and 24h after first application, before and after second treatment, and at day 10. The main objective was demonstrating a cure rate for the test product, being superior to 70% at day 10. Cure rates at day 10 (corrected for re-infestation) for the test product (96.1%) and control (94%) significantly exceeded the pre-defined target (70%) (p shampoo) can be safe and effective alternatives for insecticide-based pediculicides, with less risk for development of resistance because of the physical mode of action. German Clinical Trials Register (DRKS) DRKS00009753 and EudraCT database 2014-002918-23.

  12. New records of chewing lice (Insecta, Phthiraptera from Brazilian birds (Aves collected by Helmut Sick (1910-1991

    Directory of Open Access Journals (Sweden)

    Kamila M.D. Kuabara

    Full Text Available ABSTRACT We list the genera and species of chewing lice collected from birds by Helmut Sick, mainly from central Brazil, and particularly during the Roncador-Xingu Expedition, between 1943 and 1949. From the 123 samples studied, a wide variety of chewing louse genera and species were found, including 34 species as new records for Brazil, 37 species recorded from new Brazilian localities and 23 new host records. All material is deposited in the ectoparasite collection of the Museu de Zoologia da Universidade de São Paulo.

  13. Chewing lice (Phthiraptera: Amblycera et Ischnocera) from wrens (Passeriformes: Troglodytidae), with description of a new species of Myrsidea

    Czech Academy of Sciences Publication Activity Database

    Sychra, O.; Kounek, F.; Papoušek, I.; Čapek, Miroslav; Cárdenas-Callirgos, J. M.; Franco, S.; Literák, I.

    2014-01-01

    Roč. 54, č. 1 (2014), s. 1-28 ISSN 0374-1036 R&D Projects: GA AV ČR IAA601690901; GA MŠk LC06073 Institutional support: RVO:68081766 Keywords : Amblycera * Ischnocera * chewing lice * bird parasites * prevalence * mean intensity * geographic distribution * mitochondrial COI * phylogeny * taxonomy * Troglodytes * wrens * Neotropical Region * Palaearctic Region * new species Subject RIV: EG - Zoology Impact factor: 0.659, year: 2014 http://www.aemnp.eu/PDF/54_1/54_1_1.pdf

  14. Efficacy and Safety of a Mineral Oil-Based Head Lice Shampoo: A Randomized, Controlled, Investigator-Blinded, Comparative Study.

    Directory of Open Access Journals (Sweden)

    Luise Wolf

    Full Text Available Due to increased resistance and safety concerns with insecticide-based pediculicides, there is growing demand for head lice treatments with a physical mode of action. Certain mineral oils kill lice by blocking spiracles or by disrupting the epicuticular wax layer. The present study was performed to evaluate efficacy and safety of a mineral oil-based shampoo.This randomized, controlled, investigator-blinded, monocentric study (EudraCT registration no. 2014-002918-23 was performed from October 2014-June 2015 in Germany. A mineral oil shampoo (Mosquito® Med Läuse Shampoo 10 in Germany, Paranix or Silcap shampoo elsewhere, registered as medical device, was compared to a conventional, locally reimbursed, pyrethroid-based pediculicide (Goldgeist® Forte solution. In total, 107 patients (>1 year with confirmed head lice infestation were included (test arm: n = 53; control arm: n = 54. All subjects received two applications of either test or control product at day 0 and day 7, according to the instructions for use. Efficacy and safety was evaluated directly, 1h and 24h after first application, before and after second treatment, and at day 10. The main objective was demonstrating a cure rate for the test product, being superior to 70% at day 10.Cure rates at day 10 (corrected for re-infestation for the test product (96.1% and control (94% significantly exceeded the pre-defined target (70% (p < 0.001, 2-sided, 1-sample, chi-square test with confirmed non-inferiority for the test product. Over all visits, cure rates were consistently higher for the test product, whereas more initially-cured subjects remained lice-free until end of study (78%; control: 60%. Both products were safe and well tolerated, offering good esthetical effects.This study showed that substance-based medical devices (including the tested mineral oil shampoo can be safe and effective alternatives for insecticide-based pediculicides, with less risk for development of resistance because

  15. OBTENCIÓN DE echinococcus GRANULOSUS EN CANINOS INFECTADOS EXPERIMENTALMENTE CON PROTOESCÓLICES DE QUISTES HIDATÍDICOS.

    OpenAIRE

    Rosales G., Sofía; Gavidia C., César; Lopera B., Luis; Barrón G., Eduardo; Ninaquispe B., Berenice; Calderón S., Carmen; Gonzáles Z., Armando

    2012-01-01

    El presente estudio tuvo por objetivo reproducir experimentalmente el ciclo biológico del Echinococcus granulosus en perros. Se utilizó 12 perros (4-50 meses de edad) que fueron infectados experimentalmente con 80,000 a 308,000 protoescólices de quistes hidatídicos de pulmón e hígado de ovinos procedentes de Junín y Ayacucho. Los perros se sacrificaron 28 a 39 días post infección (p.i). El intestino delgado se dividió en tres porciones iguales (anterior, media y posterior). Los parásitos fuer...

  16. Reactividad álcali-sílice y álcali-silicato en pizarras

    Directory of Open Access Journals (Sweden)

    Campos, P.L.

    2010-06-01

    Full Text Available In this paper it is studied the reactivity of the slates with alkali hydroxides released by the cements in concretes and mortars. For this purpose several essays were performed under different conditions to a selection of slates of different origins and composition. It has been shown that all the tested slates are susceptible to alkali-silica and alkali-silicate reactivity with the alkalis of the cement and that not all the tests routinely performed to detect such reactions are reliable. Verified the reactivity of these rocks, the causes of observed behaviours and the possibilities to minimize or eliminate this reactivity are studied so that the slates could be in use in contact with cement in composite materials. The use of pozzolanic cements turns out to be effective for the elimination of this type of reactions.

    En este trabajo se ha estudiado la reactividad de las pizarras con los hidróxidos alcalinos liberados por los cementos en hormigones y morteros. Para ello se han realizado diferentes ensayos en distintas condiciones, a una selección de pizarras de distinto origen y composición. Se ha constatado que todas las pizarras ensayadas son susceptibles de sufrir reactividad álcali-sílice álcali-silicato con los álcalis de los cementos y que no todos los ensayos que se realizan de forma rutinaria para detectar este tipo de reacciones en los áridos son igual de fiables. Comprobada la reactividad de estas rocas se estudian las causas de los comportamientos observados y las posibilidades de minimizar o eliminar estas reactividades de tal manera que se puedan utilizar las pizarras en contacto con los cementos en materiales compuestos. El uso de cementos puzolánicos se revela como eficaz a la hora de eliminar este tipo de reacciones.

  17. Chewing lice (Phthiraptera) on manakins (Passeriformes: Pipridae) from Costa Rica, with description of a new species of the genus Tyranniphilopterus (Phthiraptera: Philopteridae)

    Czech Academy of Sciences Publication Activity Database

    Sychra, O.; Najer, T.; Kounek, F.; Čapek, Miroslav; Literák, I.

    2010-01-01

    Roč. 106, č. 4 (2010), s. 925-931 ISSN 0932-0113 R&D Projects: GA AV ČR IAA601690901 Institutional research plan: CEZ:AV0Z60930519 Keywords : Chewing lice * manakins * Costa Rica Subject RIV: EG - Zoology Impact factor: 1.812, year: 2010

  18. Effects of the vertically transmitted microsporidian Facilispora margolisi and the parasiticide emamectin benzoate on salmon lice (Lepeophtheirus salmonis).

    Science.gov (United States)

    Poley, Jordan D; Sutherland, Ben J G; Fast, Mark D; Koop, Ben F; Jones, Simon R M

    2017-08-17

    Microsporidia are highly specialized, parasitic fungi that infect a wide range of eukaryotic hosts from all major taxa. Infections cause a variety of damaging effects on host physiology from increased stress to death. The microsporidian Facilispora margolisi infects the Pacific salmon louse (Lepeophtheirus salmonis oncorhynchi), an economically and ecologically important ectoparasitic copepod that can impact wild and cultured salmonids. Vertical transmission of F. margolisi was demonstrated by using PCR and in situ hybridization to identify and localize microsporidia in female L. salmonis and their offspring. Spores and developmental structures of F. margolisi were identified in 77% of F 1 generation copepods derived from infected females while offspring from uninfected females all tested negative for the microsporidia. The transcriptomic response of the salmon louse to F. margolisi was profiled at both the copepodid larval stage and the pre-adult stage using microarray technology. Infected copepodids differentially expressed 577 transcripts related to stress, ATP generation and structural components of muscle and cuticle. The infection also impacted the response of the copepodid to the parasiticide emamectin benzoate (EMB) at a low dose of 1.0 ppb for 24 h. A set of 48 transcripts putatively involved in feeding and host immunomodulation were up to 8-fold underexpressed in the F. margolisi infected copepodids treated with EMB compared with controls or either stressor alone. Additionally, these infected lice treated with EMB also overexpressed 101 transcripts involved in stress resistance and signalling compared to the other groups. In contrast, infected pre-adult lice did not display a stress response, suggesting a decrease in microsporidian virulence associated with lice maturity. Furthermore, copepodid infectivity and moulting was not affected by the microsporidian infection. This study demonstrated that F. margolisi is transmitted vertically between salmon

  19. Associations between chewing lice (Insecta, Phthiraptera and albatrosses and petrels (Aves, Procellariiformes collected in Brazil Associações entre malófagos (Insecta, Phthiraptera e albatrozes e petréis (Aves, Procellariiformes capturados no Brasil

    Directory of Open Access Journals (Sweden)

    Michel P. Valim

    2006-12-01

    Full Text Available Chewing lice were searched on 197 skins of 28 species of procellariiform birds collected in Brazil. A total of 38 species of lice were found on 112 skins belonging to 22 bird species. The lice were slide-mounted and identified. A list of lice species found and their host species is given and some host-louse associations are discussed under an evolutionary perspective.Malófagos foram procurados em 197 peles de 28 espécies de aves Procellariiformes capturadas no Brasil. Um total de 38 espécies de piolhos foram encontradas em 112 peles pertencentes a 22 espécies de aves. Os piolhos foram montados em lâminas e identificados. Uma lista com as espécies de piolhos encontradas e seus hospedeiros é dada, além de algumas associações entre os piolhos e as aves serem discutidas sob uma perspectiva evolutiva.

  20. La búsqueda incansable en Los cálices vacíos de Delmira Agustini / The incessant search in Los cálices vacíos by Delmira Agustini

    Directory of Open Access Journals (Sweden)

    Carmen Sales Delgado

    2010-07-01

    Full Text Available RESUMEN: En Los cálices vacíos Delmira Agustini subvierte los roles de género impuestos sobre la mujer en su época, reivindicando su deseo sexual como algo natural también para la mujer frente a la concepción del deseo sexual femenino como el producto subconsciente e incomprensible de su propia psique. Asimismo, se desprende de rol ocupado por la mujer en la poesía como sujeto pasivo para ejercer un rol activo que es capaz de crear y a su vez, es capaz de sentir deseo sexual. Agustini, además, hace uso de un lenguaje erótico y sexual en el que la búsqueda de la satisfacción sexual sería una metáfora de la búsqueda incansable de la perfección poética.ABSTRACT: In Los cálices vacíos, Delmira Agustini subverts the gender roles imposed on women in her time and reclaims their sexual desire as something natural, in opposition to the conception of female sexual desire as the unconscious and incomprehensible product of their own psyche. Likewise, she eschews the traditional passive role as object of desire and admiration occupied by women in poetry and assumes a new active role as creator. Agustini makes use of an erotic and sexual language in which the search for sexual satisfaction would be a metaphor for the unceasing search for poetic perfection.

  1. Utilidade do pente metálico com dentes microcanaliculados no diagnóstico da pediculose Metal microchanelled fine-toothed comb use in the diagnosis of pediculosis

    Directory of Open Access Journals (Sweden)

    Patricia Elena Neira

    2009-12-01

    Full Text Available FUNDAMENTOS: Os métodos para diagnosticar Pediculus humanus var. capitis são controvertidos e a maioria dos estudos tem usado o exame visual direto. OBJETIVOS: O objetivo deste estudo foi comparar a eficácia no diagnóstico do exame visual direto em contraposição ao uso do pente metálico de aço com dentes microcanaliculados. MÉTODOS: Investigaram-se 946 crianças e adolescentes de quatro a 19 anos. O cabelo de cada criança foi examinado duas vezes, para detectar infestação pelos diferentes estádios, por meio da observação visual direta e com o pente metálico. RESULTADOS: O diagnóstico visual apontou infestação em 30,7% dos casos, enquanto que o pente metálico indicou um resultado de 51,5%. O sexo feminino foi o mais acometido, de acordo com ambos os métodos. As formas parasitárias detectadas com o exame visual direto foram: somente piolhos (adultos e/ou ninfas; 1,4%; somente lêndeas vivas, 64,8%; e lêndeas vivas mais piolhos, 33,8%; com o pente metálico, foram 6,4%, 23,6% e 70%, respectivamente. A média de tempo para descobrir um piolho foi de 57 segundos com o pente metálico e de 116,4 segundos com a observação visual direta. CONCLUSÕES: O diagnóstico é duas vezes mais rápido e 3,6 vezes mais eficiente com o pente metálico microcanaliculado. O método visual leva a uma subestimação das infestações ativas e revela as passadas não ativas.BACKGROUND: Methods for the diagnosis of Pediculus humanus var. capitis are controversial and most studies are based on direct visual exam. OBJECTIVE: The objective of this study was to compare the diagnosis efficacy of both direct visual exam and the use of a metal microchanelled fine-toothed comb. METHODS: 946 children and teenagers 4 to 19 years of age were examined. Each individual’s hair was examined twice to determine whether there was infestation by lice or nits, through direct visual exam and the use of a metal microchanelled fine-toothed comb. RESULTS: The visual

  2. Menopon gaillinae lice in the golden eagle (Aquila chrysaetos and Marsh harear (Circus aeruginosus in Najaf province, Iraq

    Directory of Open Access Journals (Sweden)

    Al-Fatlawi M. A. A

    2017-07-01

    Full Text Available Our study considered as the first work on ectoparasites of the Golden eagle (Aquila chrysaetos and Marsh harear (Circus aeruginosus in Iraq. Overall, we examined 17 eagles for the period from 01\\Nov\\2016 until 25\\Feb\\2017, out of which 4were found infected (23.5%. All infected birds were female. Aquila was hunted from Najaf sea area. Under the wing and between feathers of Aquila grossly examined for detect any parasites. Lice of genus Menopon gaillinae isolated from 4 eagles, from under the wing area. Infected eagles suffering from skin redness. 38 parasites isolated from infected eagle, we prepared a slide from these louse for spp. classification. This study was on the first hand record of shaft louse (M. gallinae in Golden eagle and Marsh harear in Iraq

  3. The birth canal: correlation between the pubic arch angle, the interspinous diameter, and the obstetrical conjugate: a computed tomography biometric study in reproductive age women.

    Science.gov (United States)

    Perlman, Sharon; Raviv-Zilka, Lisa; Levinsky, Denis; Gidron, Ayelet; Achiron, Reuven; Gilboa, Yinon; Kivilevitch, Zvi

    2018-04-22

    Assessment of pelvic configuration is an important factor in the prediction of a successful vaginal birth. However, manual evaluation of the pelvis is practically a vanishing art, and imaging techniques are not available as a real-time bed-side tool. Unlike the obstetrical conjugate diameter (OC) and inter spinous diameter (ISD), the pubic arch angle (PAA) can be easily measured by transperineal ultrasound. Three-dimensional computed tomography bone reconstructions were used to measure the three main birth canal diameters, evaluate the correlation between them, and establish the normal reference range for the inlet, mid-, and pelvic outlet. Measurements of the PAA, obstetric conjugate (OC), and ISD were performed offline using three-dimensional post processing reconstruction in bone algorithm application of the pelvis on examinations performed for suspected renal colic in nonpregnant reproductive age woman. The mean of two measurements was used for statistical analysis which included reproducibility of measurements, regression curve estimation between PAA, OC, and ISD, and calculation of the respective reference range centiles for each PAA degree. Two hundred ninety-eight women comprised the study group. The mean ± SD of the PAA, ISD, and OC were 104.9° (±7.4), 103.8 mm (±7.3), and 129.9 mm (±8.3), respectively. The intra- and interobserver agreement defined by the intraclass correlation coefficient (ICC) was excellent for all parameters (range 0.905-0.993). A significant positive correlation was found between PAA and ISD and between PAA and OCD (Pearson's correlation = 0.373 (p correlation between the three pelvic landmarks with greatest impact on the prediction of a successful vaginal delivery: the PAA which is easily measured sonographically and the ISD and OC which are not measurable by ultrasound. This correlation may serve as a basis for future studies to assess its utility and prognostic value for a safe vaginal delivery.

  4. Nuevo método gravimétrico, esencialmente modificado, para la determinación de sílice en silicatos atacables por ácido, basado en los nuevos conocimientos descubiertos en el estudio del comportamiento de los geles de sílice deshidratados en soluciones ácid

    Directory of Open Access Journals (Sweden)

    Goma, F.

    1976-12-01

    Full Text Available Not availableSe investigan, en primer lugar, las causas de error en la determinación de sílice que provienen de las condiciones externas al método en s% como son: la homogeneización, el estado de la muestra en el momento de la pesada para el análisis, y la influencia que tiene el contenido de los álcalis, parcialmente volátiles, sobre la determinación de la cantidad de materia fija después de la calcinación. Se establecen las condiciones previas del tratamiento de la muestra, según su naturaleza, para obtener siempre resultados reproducibles. Un estudio sistemático del comportamiento de los geles de sílice, obtenidos en las mismas condiciones que los que se producen en el análisis, ha permitido explicar, por primera vez, las causas que producen las llamadas "segundas sílices" y permite ver que el paso de sílice a la solución es debido a una disolución verdadera y no a un fenómeno coloidal. La aplicación al procedimiento clásico, de todos estos hechos experimentales hallados en estas investigaciones, ha permitido establecer un método simplificado y esencialmente modificado, que se describe. Se compara su alcance con los actuales métodos de mayor autoridad y se concluye que, con una sola extracción, se consigue: una recuperación prácticamente total de sílice y conocer la cantidad ''mínima y constante" de sílice que pasa al filtrado, con lo que se ha conseguido, además de la simplificación del método, un mayor grado de exactitud y un margen de reproducibilidad que es más estrecho en cualquier caso y cuando la sílice es componente mayoritario, como en los clínkeres y cementos portland, se estima es ± 0,05.

  5. Comportamiento del gel de sílice como filtro deshumidificador en sistemas de acondicionamiento de aire por compresión de vapor

    Directory of Open Access Journals (Sweden)

    Antonio José Bula Silvera

    2004-01-01

    Full Text Available Con el fin de determinar la tasa de adsorción de humedad por un filtro a base de gel de sílice, se han llevado a cabo una serie de experimentos en los cuales se ha variado la densidad de gel de sílice por unidad de área y la velocidad con que el aire se acerca al filtro. Los resultados mostraron que al disminuir la velocidad del aire y al aumentar la masa de desecante por unidad de área, se consigue mayor nivel de adsorción por parte del filtro. Sin embargo, al adimensionar la cantidad de agua retenida por unidad de masa de desecante, se observa que el filtro con menor densidad presenta mayor efectividad en el proceso de remoción de humedad. Los resultados se presentan en función del tiempo en un lapso de 50 minutos de muestreo.

  6. TRÍPLICE HÉLICE: A RELAÇÃO UNIVERSIDADE-EMPRESA EM BUSCA DA INOVAÇÃO

    Directory of Open Access Journals (Sweden)

    Myller Augusto Santos Gomes

    2014-06-01

    Full Text Available O objetivo deste trabalho é analisar a relação universidade-empresa buscando evidências teóricas que evidenciem os benefícios e as barreiras relacionadas ao modelo Tríplice Hélice. Para este artigo a terceira hélice, governo, é reconhecida como participante do processo, mas é entendido como hélice mediadora da relação Universidade-Empresa e responsável pela melhora do desempenho entre U-E. Para alcançar o objetivo proposto, levantou-se o histórico do modelo Tríplice Hélice, empreendedorismo e inovação tecnológica. Como resultado da pesquisa identificou-se as barreiras que geram conflitos e conduzem um processo de baixa produtividade, destacando-se: falta de administração dos projetos; a falta de administração dos projetos de forma profissional nas universidades; os altos custos envolvidos; indefinições na elaboração de clara política institucional de relacionamento com o ambiente externo aumentam as incertezas; existência de dúvida sobre o valor da cooperação; e complexidade dos contratos a serem negociados. No tocante aos facilitadores, identificou-se que o conflito ideológico entre a universidade e o setor empresarial tende a ser superado, possibilitando um incremento na confiança mutua e que a inovação é entendida como uma chave do processo de mudança, direcionando o papel da universidade, eximindo-a da função de protagonista no campo econômico e direcionando-a para a responsabilidade social.

  7. Identification key for chewing lice (Phthiraptera: Amblycera, Ischnocera) infesting the Indian Peafowl (Pavo cristatus) with one new country record and new host record for Saudi Arabia

    OpenAIRE

    NASSER, Mohamed; AL-AHMED, Azzam; SHOBRAK, Mohammed; ALDRYHIM, Yousif

    2015-01-01

    The amblyceran and ischnoceran lice removed from the Indian Peafowl (Pavo cristatus L.) collected at the Riyadh bird market, and other specimens available in the King Saud University Museum of Arthropods, Kingdom of Saudi Arabia, were identified. Amyrsidea minuta Emerson, a new country record, and Goniodes dissimilis Denny were found infesting the Indian Peafowl in Saudi Arabia. Goniodes dissimilis is recorded for the first time from this bird species, along with Menacanthus stramineus (Nitzs...

  8. Evidence for changes in the transcription levels of two putative P-glycoprotein genes in sea lice (Lepeophtheirus salmonis) in response to emamectin benzoate exposure.

    Science.gov (United States)

    Tribble, Nicholas D; Burka, John F; Kibenge, Frederick S B

    2007-05-01

    Overexpression of P-glycoproteins (Pgps) is assumed to be a principal mechanism of resistance of nematodes and arthropods to macrocyclic lactones. Quantitative RT-PCR (Q-RT-PCR) was used to demonstrate changes in transcription levels of two putative P-glycoprotein genes, designated here as SL0525 and SL-Pgp1, in sea lice (Lepeophtheirus salmonis) following exposure to emamectin benzoate (EMB). Pre-adult L. salmonis were challenged in an EMB bioassay for 24h and gene expression was studied from lice surviving EMB concentrations of 0, 10, and 30ppb. Gene expression was measured using Q-RT-PCR with elongation factor 1 (eEF1alpha) as an internal reference gene. The results show that both target genes, SL0525 and SL-Pgp1, had significantly increased levels of expression with exposure to 10ppb EMB (p=0.11 and p=0.17, respectively) whereas the group exposed to 30ppb was on the verge of being significant (p=0.053) only in the expression of SL-Pgp1. Gene expression for SL0525 and SL-Pgp1 were increased over five-fold at 10ppb EMB. Therefore, the upregulation of these target genes may offer protection by increasing Pgp expression when lice are exposed to EMB. Our optimized Q-RT-PCR can be used to determine if over-expression of these genes could be the basis for development of resistance in sea lice and thus allow suitable alternative chemotherapeutic options to be assessed.

  9. Nanosílice como carga en la RTV SR usada para cubrir aisladores; Nanosilica as filler in the Room temperature vulcanized silicone rubber used to coat insulators

    Directory of Open Access Journals (Sweden)

    Ignat Pérez Almirall

    2014-04-01

    Full Text Available En el presente trabajo se realiza un estudio sobre la influencia que tiene agregar como carga nanosílice a la goma de silicona vulcanizada a temperatura ambiente (RTV SR, por sus siglas en inglés que es empleada para cubrir aisladores de vidrio o de porcelana. Con este objetivo se observó la dispersión de la nanosílice en la RTV SR por medio de microscopía electrónica de barrido (MEV, por sus siglas en inglés, se midió la permitividad de la RTV SR con y sin nanosílice para varias frecuencias y se evaluó la influencia que tiene la nanosílice en la resistencia a la erosión. Además fueron medidas las corrientes de fuga durante ensayos de niebla salina a aisladores de vidrio pintados con estos recubrimientos, analizando también la pérdida de hidrofobicidad que ocurre durante el ensayo y su recuperación una vez finalizado el mismo.  The present research work carries out a study on the influence of nanosilica on room temperature vulcanized silicone rubber (RTV SR used to coat insulators. Considering this objective, the dispersion of nanosilica was observed by means of scanning electron microscopy (MEV, the permittivity of the room temperature vulcanized silicone rubber was measured with and without nanosilica for different frequencies and the influence of nanosilica in erosion resistance. Leakage currents were also measured during salt spray tests to glass insulators covered with these coatings; the loss of hidrophobicity during the test was also measured and its recovery was analyzed the test was finished.

  10. Nanosílice como carga en la RTV SR usada para cubrir aisladores/ Nanosilica as filler in the Room temperature vulcanized silicone rubber used to coat insulators

    Directory of Open Access Journals (Sweden)

    Ignat Pérez Almirall

    2012-02-01

    Full Text Available En el presente trabajo se realiza un estudio sobre la influencia que tiene agregar como carga nanosílice a la goma de silicona vulcanizada a temperatura ambiente (RTV SR, por sus siglas en inglés que es empleada para cubrir aisladores de vidrio o de porcelana. Con este objetivo se observó la dispersión de la nanosílice en la RTV SR por medio de microscopía electrónica de barrido (MEV, por sus siglas en inglés, se midió la permitividad de la RTV SR con y sin nanosílice para varias frecuencias y se evaluó la influencia que tiene la nanosílice en la resistencia a la erosión. Además fueron medidas las corrientes de fuga durante ensayos de niebla salina a aisladores de vidrio pintados con estos recubrimientos, analizando también la pérdida de hidrofobicidad que ocurre durante el ensayo y su recuperación una vez finalizado el mismo.The present research work carries out a study on the influence of nanosilica on room temperature vulcanized silicone rubber (RTV SR used to coat insulators. Considering this objective, the dispersion of nanosilica was observed by means of scanning electron microscopy (MEV, the permittivity of the room temperature vulcanized silicone rubber was measured with and without nanosilica for different frequencies and the influence of nanosilica in erosion resistance. Leakage currents were also measured during salt spray tests to glass insulators covered with these coatings; the loss of hidrophobicity during the test was also measured and its recovery was analyzed the test was finished.

  11. A checklist of sucking lice (Insecta: Phthiraptera: Anoplura) associated with Mexican wild mammals, including geographical records and a host-parasite list.

    Science.gov (United States)

    Sánchez-Montes, Sokani; Guzmán-Cornejo, Carmen; León-Paniagua, Livia; Rivas, Gerardo

    2013-01-01

    A checklist of 44 species of sucking lice (Insecta: Phthiraptera: Anoplura) recorded in Mexico, belonging to nine genera in six families is given, together with a list of the 63 species of Mexican wild mammal hosts with which they are associated. Summaries of the known geographical records and host relationships for each louse species are presented for each Mexican state. Data were compiled from published and original records, including three new locality records from the states of Oaxaca and Guerrero.

  12. Chewing lice of the genus Myrsidea (Phthiraptera: Menoponidae) from New World warblers (Passeriformes: Parulidae) from Costa Rica, with descriptions of four new species

    Czech Academy of Sciences Publication Activity Database

    Kounek, F.; Sychra, O.; Čapek, Miroslav; Literák, I.

    2011-01-01

    Roč. 3137, - (2011), s. 56-63 ISSN 1175-5326 R&D Projects: GA AV ČR IAA601690901; GA MŠk LC06073 Institutional research plan: CEZ:AV0Z60930519 Keywords : lice * new species * Costa Rica * new host-louse associations * Menoponidae * Myrsidea * Amblycera * Parulidae Subject RIV: EG - Zoology Impact factor: 0.927, year: 2011 http://www.mapress.com/zootaxa/2011/f/zt03137p063.pdf

  13. Detection of emamectin benzoate tolerance emergence in different life stages of sea lice, Lepeophtheirus salmonis, on farmed Atlantic salmon, Salmo salar L.

    Science.gov (United States)

    Jones, P G; Hammell, K L; Gettinby, G; Revie, C W

    2013-03-01

    Emamectin benzoate has been used to treat sea lice, Lepeophtheirus salmonis, infestations on farmed Atlantic salmon, Salmo salar. Recent evidence suggests a reduction in effectiveness in some locations. A major challenge in the detection of tolerance emergence can be the typically low proportion of resistant individuals in a population during the early phases. The objectives of this study were to develop a method for determining differences in temporal development of tolerance between sea lice life stages and to explore how these differences might be used to improve the monitoring of treatment effectiveness in a clinical setting. This study examined two data sets based on records of sea lice abundance following emamectin benzoate treatments from the west coast of Scotland (2002-2006) and from New Brunswick, Canada (2004-2008). Life stages were categorized into two groups (adult females and the remaining mobile stages) to examine the trends in mean abundance and treatment effectiveness. Differences in emamectin benzoate effectiveness were found between the two groups by year and location, suggesting that an important part of monitoring drug resistance development in aquatic ectoparasites may be the need to focus on key life stages. © 2013 Blackwell Publishing Ltd.

  14. Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control.

    Science.gov (United States)

    Gustafson, L; Ellis, S; Robinson, T; Marenghi, F; Endris, R

    2006-10-01

    The efficacy of emamectin benzoate (SLICE) against sea lice infestations of Atlantic salmon, Salmo salar L., is typically assessed using untreated fish, or fish treated with alternative therapeutants, as controls. The State of Maine, USA, is currently under active management for the OIE-notifiable pathogen, infectious salmon anaemia virus (ISAV); consequently, neither control group is feasible in this region. Untreated salmon risk extensive damage from the ectoparasites, and threaten to increase vector-borne exposure or susceptibility of farms to ISAV; and the only treatment presently available in Maine is SLICE. However, because sea lice infestations are unlikely to resolve spontaneously, and response to treatment occurs within weeks, use of a pretreatment baseline is a reasonable alternative for confirmatory studies. We evaluated SLICE efficacy on Atlantic salmon farms in Cobscook Bay 2002-2005, in the absence of untreated controls, using pretreatment lice loads as a reference for calculation. Maximum efficacy ranged from 68% to 100% reduction from initial levels. Time-to-maximum efficacy ranged from 1 to 8 weeks after treatment initiation. Efficacy duration, measured between first reduction and first progressive rise in counts, ranged from 4 to 16 weeks.

  15. Using observed load distributions with a simple model to analyse the epidemiology of sea lice (Lepeophtheirus salmonis) on sea trout (Salmo trutta).

    Science.gov (United States)

    Murray, Alexander G

    2002-06-01

    Sea lice are ectoparasites of salmonids that have been associated with the recent decline in sea trout numbers in north-west Europe. Observed patterns of louse load distribution between sea trout in the seas surrounding the UK, Ireland and Norway and a simple model have been used to analyse the epidemiology of lice. Loads are aggregated and deviate strongly from the Poisson distribution, although less than is observed with many other parasites. The louse numbers on fish from offshore sites are slightly less variable than for fish from coastal sites with comparable mean loads. Analysis of louse development stages and sexes shows that selection between hosts by sea lice plays a limited role. If host selection is absent, then associated poor condition would be caused by, not the cause of, high louse burdens; however the absence of such selection is not proved. Scenarios with infection that is patchy in space and time best generate the aggregated load patterns observed; these patches accord with observed swarms of copepodids. Prevalence patterns may indicate the movement of trout between environments. Control of copepodids in infection 'hot spots', either directly or through control of louse egg production in their catchment, may reduce louse loads on wild sea trout and, in particular, extreme and damaging loads.

  16. Biomineralizaciones de sílice en Celtis tala¹ (Celtidaceae Silica biomineralizations in Celtis tala (Celtidaceae

    Directory of Open Access Journals (Sweden)

    Mariana Fernández Honaine

    2005-12-01

    Full Text Available Se estudió la asociación fitolítica de Celtis tala Planchon, su composición química y variabilidad morfológica, analizándose por separado los morfotipos presentes en hoja, tallo y fruto. La asociación fitolítica de Celtis tala está compuesta principalmente por cistolitos, fitolitos poliédricos articulados con paredes y/o lumen celular silicificados, y fitolitos de contorno irregular, superficie rugosa y lumen celular silicificado. Los análisis de EDAX y las observaciones al microscopio permitieron corroborar la presencia de biomineralizaciones de sílice y calcio en hoja, tallo y fruto. Además se detectaron otros elementos, como Mg, Al, K, P, Fe y S en algunos fitolitos. En particular, este trabajo revela la presencia de sílice como un componente fundamental en la estructura de los cistolitos en esta especie, apoyando los resultados obtenidos por otros autores para cistolitos en otras especies relacionadas. La presencia de un elemento mucho menos lábil que el carbonato de calcio, permite que estas estructuras luego de la descomposición de la materia orgánica, puedan permanecer durante más tiempo sin alterarse en el suelo, constituyendo importantes elementos indicadores de la presencia de Celtis tala en el registro fósil.The phytolith assemblage of Celtis tala, its chemical composition and variability were studied. Leave, stem and fruit phytolith morphologies were analyzed with the purpose of establishing the contribution of each organ. The results showed that cystolith types, articulated poliedric (with wall and lumen silicified and irregular, rugose poliedric phytoliths were the main morphologies present in Celtis tala phytolith assemblage. Silicon and calcium biomineralizations were detected by EDAX analysis and microscope observations in leave, stem and fruit. Other elements, such as Mg, Al, K, P, Fe and S, were also detected by EDAX analysis in some phytoliths. The presence of silicon as an important structural cystolith

  17. Determinación volumétrica de la sílice en el cemento Portland

    Directory of Open Access Journals (Sweden)

    Calleja, J.

    1966-09-01

    Full Text Available Not availableSe describe un método volumétrico para la determinación cuantitativa de la sílice en el cemento portland, basado en la precipitación de la misma como fluorosilicato potásico, hidrólisis de esta sal insoluble en las condiciones de ensayo y valoración del ácido fluorhídrico liberado, con una disolución de hidróxido sódico. El método da valores reproducibles con muy escasa dispersión. La diferencia entre los valores más dispares de series de diez determinaciones hechas en una misma muestra por el mismo operador, son del orden de la tolerada por las normas A.S.T.M. (método gravimétrico para valores de un mismo operador obtenidos sobre una muestra. La diferencia entre cualesquiera otros dos valores de las series, o entre uno cualquiera de ellos y la media correspondiente a dicha serie, es muy inferior al margen de tolerancia de la A.S.T.M. Finalmente, entre el valor gravimétrico según el método de las normas A.S.T.M. y los valores volumétricos obtenidos por el método descrito, a la media de ellos, existe una concordancia aceptable.

  18. Short-Term Effects of the Anti-sea Lice Therapeutant Emamectin Benzoate on Clam Worms (Nereis virens).

    Science.gov (United States)

    McBriarty, G J; Kidd, K A; Burridge, L E

    2018-05-01

    The polychaete Nereis virens occurs commonly in marine sediments, is widely distributed, and is a popular bait species, as well as a potential replacement for wild-caught fish in commercial fish feed preparations. It is being considered as a potential co-extractive species for culture in integrated multi-trophic aquaculture operations. However, it is not known whether pesticides or drugs used to treat sea lice on farmed salmon, such as emamectin benzoate (EB), would adversely affect cultured or wild worms, because these compounds may persist in the environment. To determine the potential effects of EB to N. virens, bioassays were performed wherein worms were exposed in sand for 30 days to a concentration of 400 µg/kg dw (nominal). While no treatment-related mortality occurred, significant decreases in worm mass and marked behavioral changes (lack of burrowing) were observed in EB-treated sand compared with controls. These lab-based observations suggest a potential hazard to worms at sites where EB treatments have occurred.

  19. A Personal View of How Paleomicrobiology Aids Our Understanding of the Role of Lice in Plague Pandemics.

    Science.gov (United States)

    Raoult, Didier

    2016-08-01

    We have been involved in the field of paleomicrobiology since 1998, when we used dental pulp to identify Yersinia pestis as the causative agent of the great plague of Marseille (1720). We recently designed a specific technique, "suicide PCR," that can prevent contamination. A controversy arose between two teams, with one claiming that DNA must be altered to amplify it and the other group claiming that demographic data did not support the role of Y. pestis in the Black Death (i.e., the great plague of the Middle Ages). These controversies led us to evaluate other epidemiological models and to propose the body louse as the vector of this pandemic. This proposal was substantiated by experimental models, the recovery of Y. pestis from lice in the Congo, and the identification of epidemics involving both Y. pestis and Bartonella quintana (the agent of trench fever, transmitted by the body louse) in ancient corpses from mass graves. Paleomicrobiology has led to a re-evaluation of plague pandemics.

  20. Recuperación de sílice residual de columnas de cromatografía en la síntesis sol-gel de pigmentos

    Directory of Open Access Journals (Sweden)

    Grañana, M. C.

    2000-04-01

    Full Text Available The use of a silica waste of support chromatography process as raw material in the synthesis of ceramic pigments based in zircon network (yellow of praseodymium, turkish blue of vanadium and pink koral of iron, is analized in this study. The synthesis has been carried out by ceramic method and also by colloidal sol-gel and coprecipitation routes. Silica waste becomes an effective precursor in the zircon ceramic stains. Likewise, the high temperature and long soaking time used in the synthesis ensure the whole combustion of adsorbed organics on the waste.

    En este trabajo se caracteriza una sílice residual de procesos de cromatografía de columna y se analiza su utilización como precursor en la síntesis de los tres pigmentos triaxiales del circón (amarillo de praseodimio, turquesa de vanadio y coral de hierro utilizando tanto la vía sol-gel coloidal, la coprecipitación y el método cerámico. La sílice residual se muestra como un precursor muy efectivo en la obtención de los colores del circón tanto vía cerámica como a partir de geles. La alta temperatura así como los relativamente largos periodos de retención utilizados en la síntesis de los pigmentos cerámicos, permite una total combustión de los orgánicos adsorbidos sobre la sílice.

  1. Disolución de sílice biogénica en sedimentos de lagos utilizados como bioindicadores de calidad del agua

    Directory of Open Access Journals (Sweden)

    Hermes U. Ramírez S.

    2007-01-01

    Full Text Available El objetivo de este trabajo es mostrar que la disoluci n de s lice amorfa de origen biog nico (diatomeas y fitolitos es un bioindicador de calidad del agua de lagos, valid ndose con la determinaci n de par metros f sico-qu micos. La determinaci n de diatomeas y fitolitos se realiz sobre n cleos de sedimentos del Lago Chapala, M xico. Las diatomeas y fitolitos fueron separados, depositados en laminillas y observados con microscop a de luz polarizada y electr nica de barrido. En forma paralela se analiz la calidad del agua del lago durante la d cada de 1990-2000 monitoreando 38 par metros f sicoqu micos en 25 estaciones. El estudio de diatomeas evidenci que la mayor a de ellos presentan fr stulas no preservadas, alto grado de disoluci n, fitolitos fragmentados y/o disueltos y una importante cantidad de debris de s lice. La determinaci n de fitolitos fue deficiente, con m s diatomeas en estado de disoluci n y debris de s lice opalino que fitolitos. Los resultados del an lisis f sico-qu mico del agua muestran valores de pH de 7,20-9,45, altas concentraciones de: nitr geno org nico (1,57 mg/l, nitr geno amoniacal (0,48 mg/l, nitratos (0,18 mg/l, f sforo org nico (0,16 mg/l, ortofosfatos (0,40 mg/l, f sforo total (0,57 mg/l y conductividad (867,53 S/cm lo que refleja altas concentraciones de sales, sobresaturaci n de CaCO3 con dureza total y c lcica de 221,35 y 142,67 mg/l respectivamente; alcalinidad total y c lcica de 307,29 y 29,90 mg/l respectivamente; todos factores que influyen en la disoluci n de diatomeas y fitolitos en los lechos del lago. Los resultados del estudio micropaleontol gico del Lago de Chapala han evidenciado disoluci n de diatomeas, fitolitos y la presencia de gran cantidad de debris de s lice amorfo y baja calidad de sus aguas, lo cual ha sido verificado con los par metros fisicoqu micos de la ultima d cada. Los fen menos de disoluci n de diatomeas y fitolitos por el momento son asociados a valores de pH>9, a condiciones eutr

  2. Riesgo de exposición al sílice y prevención de la silicosis en la industria

    OpenAIRE

    Camasi Pariona, Oswaldo

    2015-01-01

    La Sílice es un material que se encuentra en los minerales. Es el componente principal de la arena y se presenta principalmente en las formas: cristalina (cuarzo, cristobalita, tridimita), amorfa (tierra de diatomea, ópalo). Esta sustancia se utiliza en las actividades de minería, tratamiento de minerales, limpieza por arenado, industria del cemento, fabricación de asfalto, cerámica, limpieza abrasiva, demolición, industria del vidrio, molienda de cuarzo, moldes de fundición, pulido de superf...

  3. Pharmacokinetics and transcriptional effects of the anti-salmon lice drug emamectin benzoate in Atlantic salmon (Salmo salar L.).

    Science.gov (United States)

    Olsvik, Pål A; Lie, Kai K; Mykkeltvedt, Eva; Samuelsen, Ole B; Petersen, Kjell; Stavrum, Anne-Kristin; Lunestad, Bjørn T

    2008-09-11

    Emamectin benzoate (EB) is a dominating pharmaceutical drug used for the treatment and control of infections by sea lice (Lepeophtheirus salmonis) on Atlantic salmon (Salmo salar L). Fish with an initial mean weight of 132 g were experimentally medicated by a standard seven-day EB treatment, and the concentrations of drug in liver, muscle and skin were examined. To investigate how EB affects Atlantic salmon transcription in liver, tissues were assessed by microarray and qPCR at 7, 14 and 35 days after the initiation of medication. The pharmacokinetic examination revealed highest EB concentrations in all three tissues at day 14, seven days after the end of the medication period. Only modest effects were seen on the transcriptional levels in liver, with small fold-change alterations in transcription throughout the experimental period. Gene set enrichment analysis (GSEA) indicated that EB treatment induced oxidative stress at day 7 and inflammation at day 14. The qPCR examinations showed that medication by EB significantly increased the transcription of both HSP70 and glutathione-S-transferase (GST) in liver during a period of 35 days, compared to un-treated fish, possibly via activation of enzymes involved in phase II conjugation of metabolism in the liver. This study has shown that a standard seven-day EB treatment has only a modest effect on the transcription of genes in liver of Atlantic salmon. Based on GSEA, the medication seems to have produced a temporary oxidative stress response that might have affected protein stability and folding, followed by a secondary inflammatory response.

  4. A Relação Universidade-Empresa no Brasil e o “Argumento da Hélice Tripla”

    Directory of Open Access Journals (Sweden)

    Renato Dagnino

    2004-01-01

    Full Text Available Analizando la evolución de las interpretaciones sobre la relación Universidad-Empresa en América Latina, se muestra cómo el argumento de la triple hélice contribuyó para que la interpretación que hasta el final de los años 80 era dominante perdiese influencia y cómo el de bate en curso entre esas dos actuales posiciones parece encaminarse. Para ofrecer un cuadro para el análisis crítico de las transformaciones en los modelos explicativo y normativo-institucional de la política científica y tecnológica en países avanzados y periféricos, el argumento de la triple hélice puede aportar nuevas interpretaciones, más coherentes con el escenario de democratización ahora en construcción en el país.

  5. La interacción de materiales del sistema sílice-alúmina con productos fluorados aluminosos

    Directory of Open Access Journals (Sweden)

    Verdeja, L. F.

    1998-05-01

    Full Text Available The aim of this paper is to get a first approximation of the systematic study of the corrosion mechanisms of the silica-alumina, alumina and rich-alumina refractory by fluoride compounds and molten aluminum. The thermodynamic results support the main role of the chemical attack and the erosive mechanisms in the wear of the silica-alumina materials. The influence of the composition of the crystalline phases in the degree of the ceramic lining attack is also studied. The results suggest not to use either oxide or nitride high-value materials for the lining of furnaces and transport recipients containing molten aluminum, because of the chemical corrosion by compounds such as cryolite or aluminum fluoride and also, because of the avidity of aluminum towards oxygen. The study of corundum-based materials like the best refractory used in order to react with fluoride compounds and molten aluminum is an alternative to be considered. The study of the crusts adhesion like a protection mechanism of the refractory lining is also a possible approach.

    Este trabajo pretende contribuir al estudio sistemático de los mecanismos de corrosión que experimentan los refractarios sílico-aluminosos, aluminosos y de alta alúmina con productos fluorados y aluminio en estado líquido. Se aportan datos termodinámicos que confirman el papel preponderante del ataque químico y de los mecanismos erosivos en el desgaste de materiales del sistema sílice-alúmina. Se discute, asimismo, la influencia de la composición de las fases cristalinas encontradas en el grado de agresión a los revestimientos cerámicos. Se propone, ante la agresividad de agentes químicamente activos, como la criolita o el fluoruro de aluminio, y la gran afinidad del aluminio por el oxígeno, no aconsejar la utilización de materiales oxídicos y nitrurados de alto valor para el revestimiento de hornos y bolsas de transporte de aluminio. Se propone, como línea de trabajo a seguir, la

  6. Método da hélice de Busch e a determinação da componente horizontal do campo magnético terrestre

    OpenAIRE

    Cavalcante,Marisa Almeida; Dias,Eliane Fernanda

    2006-01-01

    Este trabalho apresenta uma proposta experimental no estudo dos aspectos fenomenológicos envolvidos na trajetória de um feixe de elétrons sob a ação de campos elétricos e magnéticos. Os resultados deste trabalho estão sendo usados na disciplina de Estrutura da Matéria com o objetivo que os alunos possam compreender os princípios básicos envolvidos na construção de microscópios eletrônicos tais como a convergência de um feixe divergente de elétrons e a conseqüente formação da hélice cilíndrica...

  7. Repeated sublethal exposures to the sea lice pesticide Salmosan® (azamethiphos) on adult male lobsters (Homarus americanus) causes neuromuscular dysfunction, hypoxia, metabolic disturbances and mortality.

    Science.gov (United States)

    Dounia, Daoud; Andrea, Battison; Lefort, Natalie; Van Geest, Jordana Lynne

    2016-12-01

    In Atlantic Canada and other salmon-growing regions, treatment of sea lice infestations in salmon aquaculture is necessary to protect fish health. The product Salmosan®, which contains the organophosphate azamethiphos as the active ingredient, is a pesticide presently used for treatment against sea lice. It is applied as a bath treatment and then released into the surrounding seawater. The potential for lethality to non-target species following acute and chronic exposures to Salmosan® has been studied over the past decade, however, the potential for sublethal effects on lobsters remains a concern. Adult male lobsters were exposed to 0.06, 0.5, and 5µgL -1 azamethiphos for one hour, repeated five times, over 48h. Lobsters were assessed immediately after exposure and over six days of recovery. Inhibition of muscle cholinesterase activity was detected in lobsters exposed to 0.5 and 5µgL -1 azamethiphos. The 5µgL -1 dose was considered lethal (93% cumulative mortality). Significant changes in hemolymph plasma biochemistry were most apparent in the 5µgL -1 exposure group in the immediate post-exposure samples. Citrate synthase activity was significantly lower in muscles of the 0.5µgL -1 exposure group compared to control lobsters. Mean electron transport system and standard metabolic rates tended to be lower in muscle tissue of the 0.5µgL -1 exposure group than control group lobsters. These results suggest that sublethal effects on lobster energetics may occur under laboratory exposure conditions (i.e., concentrations and duration) considered environmentally relevant, which could result in impairment under natural conditions. Copyright © 2016 Elsevier Inc. All rights reserved.

  8. Novel polymeric micelles for insect pest control: encapsulation of essential oil monoterpenes inside a triblock copolymer shell for head lice control

    Directory of Open Access Journals (Sweden)

    Alejandro Lucia

    2017-04-01

    Full Text Available Background Essential oil components (EOCs are molecules with interesting application in pest control, these have been evaluated against different insect pest from more than 100 years, but their practical use is rather limited. Thus, the enhancement of their bioavailability and manageability due to their dispersion in water can open new perspective for the preparation of formulations for the control of insect pest. In this work, we studied the encapsulation of different monoterpenes in a poloxamer shell in order to prepare aqueous formulations that can be used for the development of platforms used in pest control. Methods Micellar systems containing a 5 wt% of poloxamer 407 and 1.25 wt% of the different monoterpenes were prepared. Dynamic Light Scattering (DLS experiments were carried out to characterize the dispersion of the EOCs in water. The pediculicidal activity of these micellar systems was tested on head lice using an ex vivo immersion test. Results The poloxamers allowed the dispersion of EOCs in water due to their encapsulation inside the hydrophobic core of the copolymer micelles. From this study, we concluded that it is possible to make stable micellar systems containing water (>90 wt%, 1.25 wt% of different monoterpenes and a highly safe polymer (5wt% Poloxamer 407. These formulations were effective against head lice with mortality ranging from 30 to 60%, being the most effective emulsions those containing linalool, 1,8-cineole, α-terpineol, thymol, eugenol, geraniol and nonyl alcohol which lead to mortalities above 50%. Discussion Since these systems showed good pediculicidal activity and high physicochemical stability, they could be a new route for the green fabrication of biocompatible and biosustainable insecticide formulations.

  9. Parques científicos-tecnológicos y modelo triple-hélice. Situación del Caribe colombiano

    Directory of Open Access Journals (Sweden)

    John Jairo Herrera-Márquez

    2015-01-01

    Full Text Available Los Parques de Ciencia y Tecnología se han constituido en un fenómeno mundial debido al desarrollo económico y social que han logrado los países al implementar este sistema. El objetivo del presente artículo es describir el origen y evolución de los Parques de Ciencia y Tecnología más representativos del mundo, el papel del modelo Triple Hélice en su desarrollo y la viabilidad de estas iniciativas en Co - lombia. Para allegar esta información se realizó una revisión bibliográfica en artículos y libros publicados entre los años 2000 y 2015, en conjunto con información de instituciones gubernamentales nacionales e internacionales y datos propios obtenidos a partir de encuestas. Se propone una definición de Parque de Ciencia y Tecnología como una institución que cuenta con espacio inmobiliario con beneficios tributarios, donde se instalan universidades y empresas que, haciendo uso de políticas gubernamentales de ciencia y tecnología, presta servicios especializados y desarrolla procesos de innovación. Dada la necesaria interacción entre la universidad, la industria y el gobierno, los Parques de Ciencia y Tecnología son un escenario óptimo para la aplicación del modelo Triple Hélice. En la Región Caribe colombiana se dan condiciones propicias para poner en marcha proyectos de parques porque existen necesidades en la empresa, capacidades en las universidades y políticas de ciencia, tecnología e innovación apropiadas; sin embargo, se requieren grandes esfuerzos por parte de todos los actores para lograr implementar modelos de operación sustentables.

  10. Malófagos (Phthiraptera, Amblycera, Ischnocera em aves cativas no sudeste do Brasil Chewing lice (Phthiraptera, Amblycera, Ischnocera on captive birds in southeastern Brazil

    Directory of Open Access Journals (Sweden)

    Salete Oliveira da Silva

    2009-01-01

    Full Text Available Foram identificadas 12 espécies de malófagos no Parque Zoológico Municipal Quinzinho de Barros, Sorocaba e Fundação Jardim Zoológico, Rio de Janeiro. Ciconiphilus pectiniventris em Cygnus atratus (Anseriformes, Anatidae; Kurodaia sp. em Buteo albicaudatus (Falconiformes, Accipitridae; Degeeriella sp. em Falco sparverius (Falconiformes, Falconidae; Colpocephalum sp. e Goniocotes parviceps em Pavo cristatus (Galliformes, Phasianidae; Goniodes pavonis em Rhea americana (Rheiformes, Rheidae; Colpocephalum cristatae e Heptapsogaster sp. em Cariama cristata (Gruiformes, Cariamidae; Austrophilopterus cancellosus em Ramphastos dicolorus (Piciformes, Ramphastidae; Strigiphilus crucigerus em Otus choliba (Strigiformes, Strigidae; Kurodaia sp. em Rhinoptynx clamator (Strigiformes, Strigidae e Colpocephalum pectinatum em Speotyto cunicularia (Strigiformes, Strigidae. As relações parasito hospedeiros em Strigiformes são novas no Brasil.Twelve chewing lice species were identified in Parque Zoológico Municipal Quinzinho de Barros, Sorocaba and Fundação Jardim Zoológico, Rio de Janeiro. The parasites found were: Ciconiphilus pectiniventris in Cygnus atratus (Anseriformes, Anatidae; Kurodaia sp. in Buteo albicaudatus (Falconiformes, Accipitridae; Degeeriella sp. in Falco sparverius (Falconiformes, Falconidae; Colpocephalum sp. and Goniocotes parviceps in Pavo cristatus (Galliformes, Phasianidae; Goniodes pavonis in Rhea americana (Rheiformes, Rheidae; Colpocephalum cristatae and Heptapsogaster sp. in Cariama cristata (Gruiformes, Cariamidae; Austrophilopterus cancellosus in Ramphastos dicolorus (Piciformes, Ramphastidae; Strigiphilus crucigerus in Otus choliba (Strigiformes, Strigidae; Kurodaia sp. in Rhinoptynx clamator (Strigiformes, Strigidae and Colpocephalum pectinatum in Speotyto cunicularia (Strigiformes, Strigidae. The host-lice relationships are new in Strigiformes in Brazil.

  11. Experimentos de combustión con cascarilla de arroz en lecho fluidizado para la producción de ceniza rica en sílice

    Directory of Open Access Journals (Sweden)

    Juan Daniel Martínez Ángel

    2010-01-01

    Full Text Available A fin de contribuir con la valorización de residuos agrícolas que presentan dificultades de disposición, la utilización de energéticos renovables y la obtención de formas de energía más limpias y amigables con el medio ambiente, se investigó la combustión de cascarilla de arroz en un reactor de lecho fluidizado burbujeante y atmosférico. La metodología consistió en evaluar la influencia de altos excesos de aire, en la obtención de gases calientes y ceniza con altos contenidos de sílice en estado amorfo. Excesos de aire en el rango de 40% al 125%, mostraron que los valores cercanos al límite inferior establecido (40% favorecieron temperaturas superiores a 700ºC en el interior del reactor, dando origen a mayores eficiencias de conversión de la cascarilla, pero disminuyendo el potencial amorfo de la sílice contenida en la ceniza. Comportamiento contrario fue evidenciado en el límite superior del exceso de aire. Las concentraciones de los gases del proceso mostraron relativa variabilidad para cada condición de operación. Para el caso del CO, se reportaron emisiones promedio de 200 ppm (en una base seca del 11% de O2, para los excesos de aire comprendidos entre 40% y 82,5%.

  12. A Relação Universidade-Empresa no Brasil e o "Argumento da Hélice Tripla"

    Directory of Open Access Journals (Sweden)

    Renato Dagnino

    2003-01-01

    Full Text Available A relação universidade-empresa (relação U-E é abordada tendo como guia o “argumento da Hélice Tripla” (argumento HT, entendido como combinação de duas correntes de pensamento elaboradas nos países avançados — a “Segunda Revolução Acadêmica” e a que ressalta a importância das relações com o entorno na competitividade das empresas — e de uma proposição de Política Científica e Tecnológica (PCT — os Pólos e Parques Tecnológicos — delas decorrente. Analisando a evolução das interpretações sobre a relação U-E na América Latina — os marcos de referência utilizados, as posturas analíticas ou disciplinares, sua influência junto à comunidade de pesquisa e na elaboração de PCT — mostra-se como o argumento HT contribuiu para que a interpretação que até o final dos anos 1980 era dominante perdesse influência e como o debate em curso entre essas duas atuais posições parece encaminhar-se. Por oferecer um padrão para análise crítica das mudanças nos modelos explicativo e normativo-institucional da PCT em países avançados e periféricos, o argumento HT pode informar novas interpretações, mais aderentes ao cenário de democratização ora em construção no País.The university-firm relationship (UFR is approached having as a guide the “Triple Helix statement” (TH, undestood as a combination of two currents of thought produced in advanced countries — the “Second Academic Revolution” and the one that stresses the relations between firms and their context as competitiveness factors — and an associated measure of Science and Technology Policy (STP — the Technological Parks. Analysing the evolution of UFR interpretations in Latin America — the frameworks used, the analytic or disciplinary postures, their influence on the research community and in the STP — the paper shows how TH debilitated the interpretation that had been dominant until the end of the 1980s, and how the debate

  13. Head Lice: Treatment

    Science.gov (United States)

    ... before treatment using the hot water (130°F) laundry cycle and the high heat drying cycle. Clothing ... does not imply endorsement by the Public Health Service or by the U.S. Department of Health and ...

  14. Treating Head Lice

    Science.gov (United States)

    ... Blood & Biologics Articulos en Espanol Protect Yourself Health Fraud Consumer Information by Audience For Seniors For Women ... feeds Follow FDA on Twitter Follow FDA on Facebook View FDA videos on YouTube View FDA photos ...

  15. Múltiplos carcinomas basocelulares na região pubiana em uma paciente fototipo IV: relato de caso Multiple basal cell carcinomas in the pubic area in a patient with skin type IV: case report

    Directory of Open Access Journals (Sweden)

    Cristiani Banhos Ferreira

    2011-06-01

    Full Text Available O carcinoma basocelular é a neoplasia maligna cutânea mais comum em humanos, localizando-se, frequentemente, em áreas expostas e em indivíduos de pele clara. Relata-se o caso de uma paciente de 62 anos, faiodérmica, com múltiplas lesões de bordas discretamente elevadas, eritemato-acastanhadas na região pubiana, cujo diagnóstico clínico foi carcinoma basocelular pigmentado, confirmado através do estudo histopatológico. A imunoistoquímica das lesões foi negativa para a pesquisa de papiloma vírusBasal cell carcinoma is the most common type of malignant cutaneous neoplasm in humans, being more frequently located in exposed areas and in fair-skinned individuals. It is reported the case of a 62-yearold female patient, brown-skinned ,with multiple lesions with edges slightly raised, reddish-brown in the pubic region, whose clinical diagnosis was pigmented basal cell carcinoma, confirmed by histopathology. Immunohistochemistry of the lesions was negative for the detection of papilloma virus

  16. Chewing lice (Insecta: Phthiraptera) from estrildid finches (Aves: Passeriformes: Estrildidae) and louse-flies (Insecta: Diptera: Hippoboscidae) from birds in Senegal, with descriptions of three new species of the genus Brueelia

    Czech Academy of Sciences Publication Activity Database

    Sychra, O.; Literák, I.; Najer, T.; Čapek, Miroslav; Koubek, Petr; Procházka, Petr

    2010-01-01

    Roč. 2714, - (2010), s. 59-68 ISSN 1175-5326 R&D Projects: GA AV ČR IAA6093404; GA AV ČR IAA601690901; GA MŠk LC06073 Institutional research plan: CEZ:AV0Z60930519 Keywords : chewing lice * louse-flies * Passeriformes * Senegal Subject RIV: EG - Zoology Impact factor: 0.853, year: 2010 http://www.mapress.com/zootaxa/2010/f/zt02714p068.pdf

  17. Piezoelectric properties enhanced of Sr0.6(BiNa)0.2Bi2Nb2O9 ceramic by (LiCe) modification with charge neutrality

    International Nuclear Information System (INIS)

    Fang, Pinyang; Xi, Zengzhe; Long, Wei; Li, Xiaojuan; Li, Jin

    2013-01-01

    Graphical abstract: The oxygen vacancies were confirmed by the left figure. The role of oxygen vacancy on piezoelectric activities was obtained by comparing to the varieties of oxygen vacancy concentration and piezoelectric coefficient with (LiCe) modification. -- Highlights: • The Sr 0.6 (BiNa) 0.2 Bi 2 Nb 2 O 9 ceramic by (LiCe) modification with the charge neutrality was synthesized by the solid state reaction method. • The Curie temperature and piezoelectric coefficient were found to be T c ∼590 °C and d 33 ∼32 pC/N, respectively. • The mechanism of piezoelectric activities improved by (LiCe) modification was discussed. -- Abstract: Aurivillius-type ceramics, Sr 0.6−x (LiCe) x/2.5 (BiNa) 0.2 Bi 2 Nb 2 O 9 (SLCBNBNO) with the charge neutrality, were synthesized by using conventional solid-state processing. Phase analysis was performed by X-ray diffraction analyses (XRD) and Raman spectroscopy. Microstructural morphology was assessed by the scanning electron microscopy (SEM). Structural, dielectric, piezoelectric, ferroelectric, and electromechanical properties of the SLCBNBNO ceramics were investigated. Piezoelectric properties were significantly enhanced compared to Sr 0.6 (BiNa) 0.2 Bi 2 Nb 2 O 9 (SBNBN) ceramic and the maximum of piezoelectric coefficient d 33 of the SBNBN-LC6 ceramic was 32 pC/N with higher Curie temperature (T c ∼590 °C). In addition, mechanisms for the piezoelectric properties enhanced of the SBNBN-based ceramics were discussed

  18. El modelo de Triple Hélice de relaciones universidad, industria y gobierno: un análisis crítico

    Directory of Open Access Journals (Sweden)

    González de la Fe, Teresa

    2009-08-01

    Full Text Available In this essay, I attend to the Triple Helix Model of rela tions among university, industry and government, broadly used in innovation studies. The model was proposed by Henry Etzkowitz and Löet Leyersdorf and it has been very succesful as a heuristic for analysis of innovation process and as a normative guide for innovation policies. Moreover, its theoretical foundations are suited with perspectives from evolutive and institutionalist theories of economic science, at the same time that it takes in account sociological variables usually unattended in economic theory. By other hand, the accumulative knowledge about diverse experiences of triple helix more than one decade ago has shown that the Triple Helix model is adequated as a impeller for innovations not only directed to market but also to various social problems. In spite of it, the model has originated critics pointing to its supporting functions and its weaknesses for adecuated descriptions and explanations of complex processes of innovation.Se revisará el modelo de Triple Hélice de relaciones entre universidad, industria y gobierno, ampliamente usado en los estudios de la innovación. Impulsado por Etzkowitz y Leyersdorf, el modelo ha resultado fructífero como heurística para el análisis de los procesos de innovación y como esquema normativo para políticas de innovación. Además, los fundamentos teóricos del modelo casan bien con los enfoques de las teorías evolucionista e institucionalista en economía, al tiempo que toman en cuenta variables sociológicas tradicionalmente descuidadas por la teoría económica. Por otro lado, la acumulación de conocimiento en torno a experiencias de triples hélices durante más de una década ha mostrado que el modelo sirve como impulsor de innovaciones no sólo destinadas al mercado sino también a diferentes problemas sociales. Pese a ello, ha suscitado críticas que señalan sus funciones legitimadoras y sus debilidades para la descripci

  19. Planting time for maximization of yield of vinegar plant calyx (Hibiscus sabdariffa L. Época de plantio para maximização daprodução de cálices de vinagreira (Hibiscus sabdariffa L.

    Directory of Open Access Journals (Sweden)

    Nilmar Eduardo Arbex de Castro

    2004-06-01

    Full Text Available The objective of this work was to evaluate the yield of calyxes of Hibiscus sabdariffa L, a medicinal plant, at four planting times in Lavras - MG. The treatments were four planting times (October 18th, November 15th, December 18th 2001 and January 15th 2002 and a harvest was proceeded when practically there were no developing calyxes, almost at the end of the plant cycle. The numbers of calyxes per plant, the fresh and dry biomasses of calyxes and quality were taken into account. It follows that planting time influenced yield per plant and the fresh and dry biomasses of calyxes, differing from each other by Tukey test at 5%. In October planting, there was a higher yield (2,522kg/ha with a yield 5.24 as high relative to the planting of the month of January (481 kg/ha. The planting s in the month of November to December showed yields of 1,695 and 1,093 kg/ha of dry calyxes, respectively and in relation to the same months of January, yield was of 3.52 to 2.27 times more. Harvest must be done as soon as the calyxes are ripe in order to preserve quality.Objetivou-se avaliar a produtividade de cálices de Hibiscus sabdariffa L., planta medicinal, em quatro épocas de plantio em Lavras - M.G. Os tratamentos foram quatro épocas de plantio (18 de outubro; 15 de novembro; 18 de dezembro de 2001 e 15 de janeiro de 2002 e realizada uma colheita quando praticamente não existiam cálices em desenvolvimento, quase no final do ciclo da planta. Foram considerados os números de cálices por planta, as fitomassas frescas e secas dos cálices e a qualidade. Concluiu-se que a época de plantio influenciou o rendimento por planta e as fitomassas frescas e secas dos cálices, diferindo entre si pelo teste de Tukey a 5%. No plantio de outubro, houve maior rendimento (2.522 kg/ha, com produção de 5,24 vezes a mais em relação ao plantio do mês de janeiro (481 kg/ha. Os plantios nos meses de novembro e dezembro tiveram produções de 1.695 e 1.093 kg.ha-1 de cálices

  20. A new genus and twenty new species of Australian jumping plant-lice (Psylloidea: Triozidae) from Eremophila and Myoporum (Scrophulariaceae: Myoporeae).

    Science.gov (United States)

    Taylor, Gary S; Fagan-Jeffries, Erinn P; Austin, Andy D

    2016-02-05

    The Triozidae is a diverse, cosmopolitan family of jumping plant-lice (Hemiptera: Psylloidea) from an exceptionally diverse range of plant families, but with few described Australian species. As a direct outcome of the Australian Biological Resources Study Bush Blitz species discovery program, many new Psylloidea from novel host plants in remote localities have been revealed. In this study a new genus Myotrioza Taylor gen. nov. and 20 new species are described from southern and central Australia which also establishes the first host plant records from Eremophila and Myoporum (Scrophulariaceae: Myoporeae). New species, delineated using a combination of morphological and mitochondrial COI sequence data, are: Myotrioza clementsiana sp. nov., M. darwinensis sp. nov., M. desertorum sp. nov., M. eremi sp. nov., M. eremophili sp. nov., M. flindersiana sp.nov., M. gawlerensis sp. nov., M. insularis sp. nov., M. interioris sp. nov., M. interstantis sp. nov., M. longifoliae sp. nov., M. markmitchelli sp. nov., M. myopori sp. nov., M. oppositifoliae sp. nov., M. pantonii sp. nov., M. platycarpi sp. nov., M. remota sp. nov., M. scopariae sp. nov., M. serrulatae sp. nov., and M. telowiensis sp. nov. Genetic divergence data, host associations, biogeographic data, diagnoses and a key to species are presented. Myotrioza appears to be particularly diverse in ephemeral southern Australia, especially in inland Western Australia and South Australia, matching regions of high diversity of the host genera; some species are likely to be short range endemics.

  1. Piezoelectric properties enhanced of Sr{sub 0.6}(BiNa){sub 0.2}Bi{sub 2}Nb{sub 2}O{sub 9} ceramic by (LiCe) modification with charge neutrality

    Energy Technology Data Exchange (ETDEWEB)

    Fang, Pinyang, E-mail: fpy_2000@163.com [Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710032 (China); Xi, Zengzhe; Long, Wei; Li, Xiaojuan [Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710032 (China); Li, Jin [Northwest Institute For Non-ferrous Metal Research, Xi’an 710016 (China)

    2013-09-01

    Graphical abstract: The oxygen vacancies were confirmed by the left figure. The role of oxygen vacancy on piezoelectric activities was obtained by comparing to the varieties of oxygen vacancy concentration and piezoelectric coefficient with (LiCe) modification. -- Highlights: • The Sr{sub 0.6}(BiNa){sub 0.2}Bi{sub 2}Nb{sub 2}O{sub 9} ceramic by (LiCe) modification with the charge neutrality was synthesized by the solid state reaction method. • The Curie temperature and piezoelectric coefficient were found to be T{sub c} ∼590 °C and d{sub 33} ∼32 pC/N, respectively. • The mechanism of piezoelectric activities improved by (LiCe) modification was discussed. -- Abstract: Aurivillius-type ceramics, Sr{sub 0.6−x}(LiCe){sub x/2.5}(BiNa){sub 0.2}Bi{sub 2}Nb{sub 2}O{sub 9}(SLCBNBNO) with the charge neutrality, were synthesized by using conventional solid-state processing. Phase analysis was performed by X-ray diffraction analyses (XRD) and Raman spectroscopy. Microstructural morphology was assessed by the scanning electron microscopy (SEM). Structural, dielectric, piezoelectric, ferroelectric, and electromechanical properties of the SLCBNBNO ceramics were investigated. Piezoelectric properties were significantly enhanced compared to Sr{sub 0.6}(BiNa){sub 0.2}Bi{sub 2}Nb{sub 2}O{sub 9} (SBNBN) ceramic and the maximum of piezoelectric coefficient d{sub 33} of the SBNBN-LC6 ceramic was 32 pC/N with higher Curie temperature (T{sub c} ∼590 °C). In addition, mechanisms for the piezoelectric properties enhanced of the SBNBN-based ceramics were discussed.

  2. Dos nuevos registros de piojos masticadores (Phthiraptera: Ischnocera: Philopteridae sobre Leptotila megalura (Aves: Columbidae en la Argentina Two new records of chewing lice (Phthiraptera: Ischnocera: Philopteridae on Leptotila megalura (Aves: Columbidae from Argentina

    Directory of Open Access Journals (Sweden)

    Leonor Guardia

    2008-12-01

    Full Text Available Dos especies de piojos masticadores (Phthiraptera: Ischnocera: Philopteridae, Physconelloides ceratoceps Ewing y Columbicola gracilicapitis Carriker, son registradas por primera vez sobre Leptotila megalura Sclater & Salvin ("yerutí yungueña" (Aves: Columbidae. Además, C. gracilicapitis es citada por primera vez para la Argentina.Two species of chewing lice (Phthiraptera: Ischnocera: Philopteridae, Physconelloides ceratoceps Ewing and Columbicola gracilicapitis Carriker are recorded for the first time on Leptotila megalura Sclater & Salvin ("Large-tailed dove" (Aves: Columbidae. In addition, C. gracilicapitis is recorded for the first time in Argentina.

  3. Removing Pubic Hair (For Young Men)

    Science.gov (United States)

    ... who has experience with performing laser hair removal. Electrolysis: Electrolysis is the only hair removal method that permanently ... using slow strokes. Rinse your skin with warm water after you are done shaving and then pat ...

  4. The power of communication leading pubic acceptance

    International Nuclear Information System (INIS)

    2010-12-01

    The contents of this book are as in the following. These titles are what is nuclear energy special lecture? history and prospect of nuclear energy special lecture, the world changed by communication, vision and role of KONEPA, online broadcast of nuclear energy special lecture, Note of nuclear energy, special lecture and merit of nuclear energy special lecture.

  5. Desarrollo de revestimientos de sílice para el proceso de microfundición de joyería con pre-engaste de esmeraldas

    Directory of Open Access Journals (Sweden)

    Carlina Londoño Montes

    2018-03-01

    Full Text Available Resumen: Se evaluó la posibilidad de aplicar esmeraldas naturales a la técnica de pre-engaste para la fabricación de joyería, empleando dos revestimientos base sílice, uno comercial y otro desarrollado con arena silícea natural, estabilizados térmicamente a 350 °C. Las materias primas y los revestimientos se caracterizaron con ayuda de las técnicas de difracción de rayos X, microscopia electrónica de barrido y análisis calorimétrico diferencial y termogravimétrico, así como a través de pruebas de resistencia a la compresión, permeabilidad y resistencia al choque térmico. Se seleccionó la mezcla con relación arena/yeso 68/32 y adición del 50% en peso de agua como la más adecuada para la obtención del nuevo revestimiento, así como el 38% de agua para la mezcla comercial. Finalmente, se realizaron ensayos de microfundición con una aleación preciosa de bajo punto de fusión (398 °C y de simulación del proceso, con los softwares Solidcast® y Flowcast®, observándose total colabilidad de la aleación dentro de los moldes, así como mínima afectación cromática de las esmeraldas. Abstract: The possibility of implementing natural emeralds to the stone in place technique in the manufacture of jewelry was evaluated using two silica samples, one commercial and other developed with natural silica sand, both thermally stabilized at 350 °C. Raw materials and blend performances were characterized by X-ray diffraction, scanning electron microscopy and differential scanning calorimetry and thermo-gravimetry, as well as through compression strength, permeability and thermal shock resistance tests. The sand/gypsum mixture with 68/32 ratio and the addition of 50 wt% of water was selected as the most suitable to obtain the new investment, as well as 38% water for commercial investment. Finally, microcasting tests were carried out with a low melting point gold alloy (398 °C and simulation tests of this process were performed

  6. Posicionamento estratégico de MPE'S com base na inovação através do modelo Hélice Tríplice

    Directory of Open Access Journals (Sweden)

    Dusan Schreiber

    Full Text Available A globalização dos mercados, os avanços da ciência e da tecnologia, estimulou o surgimento de novos nichos de mercado, com consumidores mais exigentes, e, também, o aumento da competitividade entre empresas (ORTIZ, 2003. Nesse panorama, destacam-se as micro e pequenas empresas - MPE's, que se responsabilizam por parcela relevante de geração de oportunidades de emprego e de renda no país. No entanto,estudos apontam para a fragilidade técnica e produtiva das MPE'sque se reflete em índices mais elevados de encerramento de operações e de inadimplência de obrigações sociais e tributárias (SEBRAE, 2009. Esses agentes econômicos, por vezes menos preparados para competir, mas essenciais para o sistema econômico e social dos países, foram contemplados com políticas públicas, voltadas para o estímulo ao empreendedorismo, priorizando a capacitação em gestão e métodos de produção (CASSIOLATO & LASTRES, 2001. Dentre elas destacam-se a constituição de redes colaborativas de MPE's, a capacitação de seus gestores e equipes operacionais, além da disponibilização de acesso ao conhecimento técnico, com vistas a subsidiar a atividade de inovação de produtos e processos (MATTOS et al., 2009. Com o objetivo de otimizar a alocação de recursos públicos para o referido fim, os agentes governamentais optam pela adoção do modelo de Hélice Tríplice, por meio do qual o governo media a interação entre a academia e as empresas e fomenta o compartilhamento da infra-estrutura universitária, dos conhecimentos, métodos e técnicas, desde a gestão até a operação. O objetivo deste trabalho visa evidenciar as características do posicionamento estratégico de empresas de pequeno porte, que participam de duas redes de cooperação, atuantes na região sul do país, com destaque para o processo de concepção de estratégias individuais e coletivas construídas com base em programas de capacitação em inovação, de produtos e

  7. Modificación superficial de aleaciones de base aluminio (anodizadas y no anodizadas mediante recubrimientos de sílice

    Directory of Open Access Journals (Sweden)

    García-Heras, M.

    2004-04-01

    Full Text Available Transparent and colourless silica coatings were deposited on anodising and non-anodising substrates of aluminium-base alloys (series 6063. Coatings were prepared by soLgel (dipping method from a silica alkoxide and a mixture of both silica alkoxide and silica alkylalkoxide. Preparations were optimised from viscosity, density, surface tension, and contact angle measurements. Densification was carried out at 60 and 120 °C. Reflectance attenuation of coated samples was analysed by UV-VIS-NIR spectroscopy. The results indicated that -10 % of attenuation is reached. Durability and resistance against degradation tests of the metal/coating system were undertaken by immersion into aqueous solutions. Electrochemical impedance measurements and potential corrosion of the metallic substrate for variable times were performed.

    Se han depositado recubrimientos transparentes e incoloros de sílice sobre sustratos anodizados y no anodizados de aleaciones de base aluminio (serie 6063. Los recubrimientos se prepararon por sol-gel (inmersión-extracción a partir de un alcóxido de silicio y de una mezcla de alcóxido y alquilalcóxido de silicio. La optimización de las fonnulaciones se basó en medidas de viscosidad, densidad, tensión superficial y ángulo de contacto. La densificación se llevó a cabo a 60 y 120 °C. La atenuación de la reflectancia luminosa de las muestras recubiertas se analizó por espectroscopia UV-VIS-IRP. Los resultados indicaron que se alcanza casi un 10 % de atenuación. Los ensayos de durabilidad y resistencia a la degradación del sistema metal/recubrimiento se realizaron por inmersión en disoluciones acuosas, aplicando medidas de impedancia electroquímica y del potencial de corrosión del sustrato metálico, para tiempos variables.

  8. De la théorie au modèle : les hélices comme sculptures calculées, le cas des Fonderies de l’Atlantique à Nantes

    Directory of Open Access Journals (Sweden)

    Jean-Louis Kerouanton

    2009-05-01

    Full Text Available La découverte, l’étude et la sauvegarde partielle des bâtiments des anciennes « Fonderies de l’Atlantique » à Nantes en 2001-2002 ont permis également de révéler puis de conserver une extraordinaire collection d’objets de fonderie au sable correspondant à la fabrication des hélices et des pales d’hélice pour les plus gros navires commerciaux et militaires. La technologie de fonderie d’alliage de cuivre pour les hélices avait été adoptée en 1937 dans l’entreprise. L’ensemble des modèles en bois de pales d’hélice est d’abord apparu comme une accumulation de sculptures monumentales particulièrement épurées. L’étude technologique plus fine montre cependant que cette « beauté » réelle ne correspond nullement à la volonté d’un artiste mais relève uniquement des calculs liés pour chaque production à un projet de navire. Et c’est seulement le calcul qui permet d’expliquer les réalisations d’hélices monoblocs par troussage, sans modèle aucun ; il ne reste alors de traces que les outils du troussage. Il s’agit bien dès lors d’un patrimoine scientifique - la transposition matérielle d’un calcul mathématique - tout autant que d’un patrimoine technique et industriel. C’est cette particularité qui fait la grande originalité de l’ensemble conservé par la communauté urbaine, en attendant, nous l’espérons, une valorisation future.In 2001 and 2002, the study and partial preservation of the buildings of the former Fonderies de l’Atlantic in Nantes also allowed for the preservation of a remarkable collection of objects related to the sand foundry casting carried out by this firm, specialised in propellers for major commercial and military vessels. The firm began to employ copper alloys in its foundry techniques from 1937. The collection of wooden models prepared for the casting of propellers appears, at first sight, as a remarkable accumulation of rather abstract monumental

  9. Caída de presión de un flujo turbulento en un espacio anular con hélices insertadas//The pressure drop of turbulent flow in an annular space with wire coil inserts

    Directory of Open Access Journals (Sweden)

    Josué Imbert González

    2015-05-01

    Full Text Available El trabajo presentado evaluó el comportamiento experimental de la caída de presión en un espacio anular con alambres enrollados insertados para números de Reynolds entre 1500 y 5000. La zona de prueba se seleccionó alejada de la influencia de los efectos de entrada. Anteriormente se realizaron pruebas de visualización del flujo para verificar la presencia de un flujo turbulento en esta gama del número de Reynolds. A partir de los datos experimentales se obtuvieron ecuaciones de correlación del factor de fricción para el flujo turbulento. Las ecuaciones obtenidas se compararon con los datos experimentales. Los resultados indican hasta qué punto las hélices inducen la aparición de turbulencias en un espacio anularPalabras claves: caída de presión, flujo anular, análisis hidrodinámico, visualización de flujo, hélices insertadas.______________________________________________________________________________AbstractThe work presented evaluates the experimental behavior of the pressure drop in an annular space with coiled wires inserted forReynolds numbers between 1500 and 5000. The test zone was selected away from the influence of entrance effects. Previously flow visualization tests were performed to verify the presence of a turbulent flow in this range of Reynolds number. From the experimental data were obtained correlation equations of the friction factor for turbulent flow. The equations obtained were compared with experimental data. The results indicate to what extent the helices induce the occurrence of turbulence in an annular space.Key words: drop pressure, annular flow, hydrodynamic analysis, visualization flow, wire coil inserts.

  10. Estudio cualitativo sobre fisuración debida a la reacción álcali -sílice en el forjado de la represa hidráulica de Jaguari

    Directory of Open Access Journals (Sweden)

    Camila Zoilo

    2013-01-01

    Full Text Available Las estructuras de hormigón de la represa Hidráulica de Jaguari (PH presentan una imagen de agrietamiento debido a la aparición de la Reacción Álcali-Sílice (RAS. En el presente trabajo se realizó un análisis cualitativo de las grietas que se producen en la losa por la entrada de agua con un studio visual in situ, y los resultados de análisis por ordenador usando el método de elementos finitos. Para el estudio de las grietas se utilizó la técnica de registro con bolígrafos de plástico con tinta. El análisis computacional se realizó con el programa comercial de dos dimensiones de tipo elástico CSQ - Constant Strain Quad. Una comparación entre los resultados obtenidos con ambas técnicas mostró que el agrietamiento más intenso observado en ciertas regiones de la losa coincide con la aparición de los picos de tensión cuando se simula un taco de expansión en las paredes en contacto con el agua, lo que puede explicar el origen de fisuración observada en la losa.

  11. Obstrução intestinal congênita em cão por aderência de alça em osso púbico Canine congenital intestinal obstruction due to a band of small bowel in the pubic bone

    Directory of Open Access Journals (Sweden)

    Evandro Zacché Pereira

    2011-10-01

    Full Text Available Atendeu-se uma cadela, sem raça definida, com aproximadamente cinco meses de idade, apresentando anamnese com queixa de apatia e hiporexia associadas a vômitos e emagrecimento progressivo com início incerto. Ao exame físico era evidente distensão abdominal com dilatação intestinal e aumento de peristaltismo. O animal apresentava-se emaciado e subdesenvolvido, com acentuado grau de desidratação, pulso filiforme e nível de consciência reduzido. Minutos após o início do atendimento a cadela foi a óbito. À necropsia, pôde-se observar um segmento do intestino delgado atravessando o púbis e com lúmen reduzido. Tal apresentação se faz relevante por se tratar de um caso nunca antes descrito na literatura veterinária.A five-month-old mongrel bitch was presented with history of apathy and hyporexia in addition to vomit and progressive weight loss of uncertain beginning. At the physical examination, abdominal distention with intestinal dilatation and increased peristaltic movements was evident. The animal also was emaciated, highly dehydrated, with filiform pulse and reduced conscience level. It died a few minutes after the physical exam. At the necropsy, a small bowel segment could be observed crossing the pubic bone causing obstruction due to a reduction in the lumen at the point of adhesion. This presentation has an important relevance because such case has never been reported before in the veterinary medical practice.

  12. Características físico-químicas de physalis em diferentes colorações do cálice e sistemas de condução Chemical characteristics of cape-gooseberry fruits in different sepal colors and training systems

    Directory of Open Access Journals (Sweden)

    Cláudia Simone Madruga Lima

    2009-12-01

    Full Text Available Uma espécie que está sendo incorporada no cultivo de pequenas frutas é a physalis. Esta Solanaceae é considerada uma planta rústica que tem dificuldade de manter suas hastes eretas, seus frutos estão dentro de um cálice que os protege contra insetos, pássaros e condições adversas. o objetivo neste trabalho foi avaliar as características físico-químicas dos frutos de Physalis peruviana em função das diferentes colorações de cálice e dos sistemas de condução utilizados. A colheita dos frutos foi realizada levando em consideração cinco diferentes classificações quanto à coloração de cálice: 1 (verde; 2 (verde-amarelada; 3 (amarelo-esverdeada; 4 (amarela, e 5 (amarelo-amarronzada, provenientes dos sistemas de condução "v" invertido e triangular. o delineamento experimental foi o inteiramente casualizado, com esquema fatorial 5x2 (colorações do cálice x sistemas de condução. A unidade experimental foi composta de dez frutos, sendo cada tratamento repetido três vezes. os dados foram submetidos à análise de variância (ANOVA, aplicando o teste de Tukey, ao nível de 5% de probabilidade de erro, para comparação das médias. As variáveis avaliadas foram: massa fresca do fruto, do cálice e total, diâmetro, firmeza, coloração da epiderme, sólidos solúveis totais (SST, acidez total titulável (ATT, razão SST/ATT e pH. o sistema de condução triangular, combinado às colorações de fruto amarela e amarelo-amarronzada resultou, respectivamente, em frutos com maior conteúdo de SST e razão SST/ATT. os maiores valores para massa e diâmetro de fruto foram alcançados quando os cálices se apresentavam amarelo-amarronzados, enquanto a maior massa total foi atingida quando os cálices tinham coloração amarela. Já para a massa do cálice, as maiores respostas foram obtidas nos de coloração verde. Conclui-se que physalis colhidos a partir da terceira fase (3 (cálice amarelo-esverdeado apresentam o melhor

  13. Métodos de evaluación de las reacciones álcali-sílice en hormigones con áridos reciclados Evaluation methods of alkali-silica reaction in concrete with recycled aggre-gates

    Directory of Open Access Journals (Sweden)

    Miguel Barreto Santos

    2009-08-01

    Full Text Available Las reacciones álcali-sílice son una de las causas químicas de la degradación de los hormigones con áridos pétreos (HAP que comprometen su durabilidad. La introducción de áridos reciclados (AR en los hormigones produce alteraciones en sus propiedades y diferencias en los resultados de los ensayos de evaluación de las RAS. Se encuentran en la bibliografía algunos cuidados en la evaluación de los AR y de los hormigones con áridos reciclados (HAR en cuanto a la RAS, así como propuestas de modificación de las metodologías de ensayo existentes. Existen propuestas de modificación del ensayo acelerado de mortero y hormigón con AR para acelerar las reacciones y recomendaciones para evitar alteraciones en las características del AR grueso, durante la preparación de probetas. Algunos artículos recomiendan la pre-saturación del AR, debido a su absorción de agua, para evitar variaciones en los resultados de expansión de probetas de hormigón a edades prematuras. El presente artículo pretende describir sucintamente las características de los HAR y de las RAS presentando observaciones de la bibliografía en cuanto a los métodos de evaluación de las RAS en HAR y en HAP.Alkali-silica reactions (ASR are one of the causes of chemical degradation of concrete with natural aggregates (CNA that compromise its durability. The introduction of recycled aggregates (RA in concrete creates changes in their properties and differences in the results of the evaluation tests of ASR. Existing bibliography emphasizes special care in the evaluation of RA and concrete with recycled aggregate (CRA for ASR and changes are proposed to the existing test methods. There are proposals to change the accelerated test of mortar and concrete with RA to accelerate the reactions and recommendations to prevent changes in the characteristics of the RA, during the preparation of samples. Some articles recommend the pre-saturation of the AR, due to its absorption of

  14. Iatrogenic Bowel Injury at Exchange of Supra-Pubic Catheter

    LENUS (Irish Health Repository)

    Foran, AT

    2018-04-01

    Suprapubic catheter insertion and exchange is a common urological procedure, but it is not without risks and complications. While bowel perforation is a recognised complication at suprapubic catheter insertion, it is not commonly reported at suprapubic catheter exchange. We report our experience of recognition, diagnosis and subsequent successful management of the most important complication related to suprapubic catheters.

  15. Técnicas rápidas de realización de activación neutrónica cíclica y de su análisis, para la determinación del contenido de sílice en muestras de mineral de fluorita

    OpenAIRE

    Díaz García, Eduardo

    2015-01-01

    Esta Tesis Doctoral estudia la medida de rayos gamma diferidos, causados por la activación neutrónica de muestras procedentes de una planta de concentración de fluorita, como método de determinación de su contendido en flúor y sílice. Pretende mejorar la rapidez de los análisis frente a los métodos químicos. El método fue estudiado, para la determinación del flúor, en anteriores tesis doctorales leídas en la Universidad de Oviedo ¿Desarrollo de un método rápido basado en técnicas de activa...

  16. Texturas de los minerales del grupo de la sílice de la manifestación epitermal El Rifle-Hato Viejo, región de Moa: clasificación, descripción e implicaciones genéticas

    Directory of Open Access Journals (Sweden)

    Leduar Ramayo-Cortés

    2001-03-01

    Full Text Available En el marco de la región de Moa, Cuba oriental, se localizan varias manifestaciones hidrotermales. Se trata de sistemas vetiformes y brechas hidrotermales con contenidos significativos de metales nobles. La manifestación hidrotermal El Rifle-Hato Viejo se destaca por su extensión, y está formada por brechas y vetas de cuarzo mineralizadas, vinculadas preferentemente a fracturas correspondientes al sistema de fallas NW-SE y se hospeda en rocas sedimentarias del Campaniense Tardío-Daniense. El estudio textural de los minerales del grupo de la sílice permitió el reconocimiento de varias texturas, las cuales fueron clasificadas en tres grupos: 1 texturas de crecimiento primario (calcedonia maciza, costriforme, en peine, cristales zonados, y maciza, 2 texturas de recristalización (mosaico, plumosa y llameante, y 3 texturas de reemplazo (en enrejado, paralelo y radiado. Sobre la base de este análisis se estableció la secuencia deposicional de los diferentes minerales del grupo de la sílice y se reveló la presencia de la paragénesis de alteración adularia-sericita, lo cual indicaría el desarrollo de un sistema epitermal de baja sulfuración. Estas texturas también se usaron para indicar el nivel de emplazamiento dentro del sistema epitermal; en este caso, el emplazamiento de la manifestación El Rifle-Hato Viejo se corresponde con el nivel intermedio o coloiforme-costriforme, el cual se encuentra por encima de la zona propicia para la deposición del oro, por lo que podría esperarse la presencia de contenidos más elevados en profundidad.

  17. THE STUDY OF PREVAIENCE OF HEAD PEDICULOSIS IN STUDENTS OF KHOMEINISHAHR DISTRICT 1379-80

    Directory of Open Access Journals (Sweden)

    M MOTOVALI EMAMI

    2003-12-01

    Full Text Available Introduction: Todetermine the rate of contamination With head pedicolosis, find infected students and their families, help to improve the controlling program; this stady was prformed. Methods: The 68968 patients from khomeini-shahr school students in 2000-2001 were screened by standard qustionnaire. The demogrephic data and related rariables were gathred, using interview and observation of the organism or its nymph on the hairs of the cases. Atlas, they were analyzed in computer by SPSS, X , and t-test. Results: 461 (68% of patients were infected. 36% of them were from rural and 82% from urban areas. No significant differences were seen between sex, age, education level of the samples and their parents, their using common measures, the number of taking bath per week and following personal sanitation and the rate of contamination. (P<0.001 Among the factors, no personal sanitation had the largest effect. The frequency of infection in the families was 42.31%. Discussion: Considering the per sent data, the rate of infection in male students doesn"t seem important. But, equal amounts of contamination rate in female students of primary and secondry schools are demonstrated. In addition, the necessity of special attention to these levels and health system improvement in these groups seems important for the first time. In spite of effectiveness of drug therapy in its control, health education in school with cooperation of their families. in addition to in the society is of prime importance.

  18. The sex ratio distortion in the human head louse is conserved over time

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    Biliński Szczepan M

    2004-05-01

    Full Text Available Abstract Background At the turn of the 19th century the first observations of a female-biased sex ratio in broods and populations of the head louse, Pediculus humanus capitis, had been reported. A study by Buxton in 1940 on the sex ratio of lice on prisoners in Ceylon is still today the subject of reanalyses. This sex ratio distortion had been detected in ten different countries. In the last sixty years no new data have been collected, especially on scalp infestations under economically and socially more developed conditions. Results Here we report a female bias of head lice in a survey of 480 school children in Argentina. This bias is independent of the intensity of the pediculosis, which makes local mate competition highly unlikely as the source of the aberrant sex ratio; however, other possible adaptive mechanisms cannot be discounted. These lice as well as lice from pupils in Britain were carrying several strains of the endosymbiotic bacterium Wolbachia pipientis, one of the most wide spread intracellular sex ratio distorters. Similar Wolbachia strains are also present in the pig louse, Haematopinus suis, suggesting that this endosymbiont might have a marked influence on the biology of the whole order. The presence of a related obligate nutritional bacterium in lice prevents the investigation of a causal link between sex ratio and endosymbionts. Conclusions Regardless of its origin, this sex ratio distortion in head lice that has been reported world wide, is stable over time and is a remarkable deviation from the stability of frequency-dependent selection of Fisher's sex ratio. A female bias first reported in 1898 is still present over a hundred years and a thousand generations later.

  19. Treatment of Phthiriasis Palpebrarum and Crab Louse: Petrolatum Jelly and 1% Permethrin Shampoo.

    Science.gov (United States)

    Karabela, Yunus; Yardimci, Gurkan; Yildirim, Isik; Atalay, Eray; Karabela, Semsi Nur

    2015-01-01

    Phthiriasis palpebrarum is an uncommon cause of blepharoconjunctivitis in which Pthirus pubis infest the eyelashes. We report a case of unilateral phthiriasis palpebrarum with crab louse. A 45-year-old man presented with conjunctival hyperaemia and moderate itching associated with irritation, and crusty excretions of the eyelashes in the left eye. Careful slit-lamp examination revealed many lice and nits in left eye and mild conjunctival hyperaemia. No abnormality was found in the right eye. On dermatologic examination, only one louse was found at the pubic area. The patient was treated effectively with petrolatum jelly (Vaseline) and 1% permethrin shampoo (Kwellada 1% shampoo). At the end of the first week no louse or nit was present on eyelashes and pubic area.

  20. Stress Fracture of the Pubic Ramus in a Female Long Distance Runner: A Case Report

    Directory of Open Access Journals (Sweden)

    Seçkin Şenışık

    2017-06-01

    Stress fractures of the pelvis should be included in the differential diagnosis of female distance runners who have prolonged groin pain increasing with exercise. Detailed medical history, physical examination, blood tests, and radiological images are keys to reach certain diagnosis. Treatment plan should include risk factor analysis and progressive training programs.

  1. The Copenhagen Standardised MRI protocol to assess the pubic symphysis and adductor regions of athletes

    DEFF Research Database (Denmark)

    Branci, Sonia; Thorborg, Kristian; Bech, Birthe Højlund

    2015-01-01

    radiologists developed an 11-element MRI evaluation protocol defined according to precise criteria and illustrated in a pictorial atlas. Eighty-six male athletes (soccer players and non-soccer players) underwent standardised 3 Tesla MRI of the pelvis. Two external musculoskeletal radiologists were trained...

  2. Human phthiriasis. Can dermoscopy really help dermatologists? Entodermoscopy: a new dermatological discipline on the edge of entomology.

    Science.gov (United States)

    Scanni, G

    2012-02-01

    The diagnosis of human phtiriasis (often referred to as the "crab" or the "pubic louse") can be more difficult than other types of pediculosis (Pediculus corporis and Pediculus capitis) because this insect has a smaller body of 1.2 x 0.8 mm, may be lighter in color, not as mobile and therefore harder to see to the naked eye. Can dermoscopy aid to perform a better analysis of the skin? The clinical experience developed in two patients gives an affirmative answer, moreover adding useful information of insect and its eggs already known to entomologists but never used in dermatological diagnosis. The identification in vivo can distinguish Phthirus pubis from other skin signs while the conical shape of the operculum and the wide fixing sleeve of egg to hair, tells what species of louse is infesting, even if the insect is unavailable or nits are elsewhere from the pubic area. Entodermoscopy, provided that dermatologists have some knowledge of entomology, therefore promises advantages over standard microscopic examination.

  3. Insect bite reactions

    Directory of Open Access Journals (Sweden)

    Sanjay Singh

    2013-01-01

    Full Text Available Insects are a class of living creatures within the arthropods. Insect bite reactions are commonly seen in clinical practice. The present review touches upon the medically important insects and their places in the classification, the sparse literature on the epidemiology of insect bites in India, and different variables influencing the susceptibility of an individual to insect bites. Clinical features of mosquito bites, hypersensitivity to mosquito bites Epstein-Barr virus NK (HMB-EBV-NK disease, eruptive pseudoangiomatosis, Skeeter syndrome, papular pruritic eruption of HIV/AIDS, and clinical features produced by bed bugs, Mexican chicken bugs, assassin bugs, kissing bugs, fleas, black flies, Blandford flies, louse flies, tsetse flies, midges, and thrips are discussed. Brief account is presented of the immunogenic components of mosquito and bed bug saliva. Papular urticaria is discussed including its epidemiology, the 5 stages of skin reaction, the SCRATCH principle as an aid in diagnosis, and the recent evidence supporting participation of types I, III, and IV hypersensitivity reactions in its causation is summarized. Recent developments in the treatment of pediculosis capitis including spinosad 0.9% suspension, benzyl alcohol 5% lotion, dimethicone 4% lotion, isopropyl myristate 50% rinse, and other suffocants are discussed within the context of evidence derived from randomized controlled trials and key findings of a recent systematic review. We also touch upon a non-chemical treatment of head lice and the ineffectiveness of egg-loosening products. Knockdown resistance (kdr as the genetic mechanism making the lice nerves insensitive to permethrin is discussed along with the surprising contrary clinical evidence from Europe about efficacy of permethrin in children with head lice carrying kdr-like gene. The review also presents a brief account of insects as vectors of diseases and ends with discussion of prevention of insect bites and some

  4. Human parasites in the Roman World: health consequences of conquering an empire.

    Science.gov (United States)

    Mitchell, Piers D

    2017-01-01

    The archaeological evidence for parasites in the Roman era is presented in order to demonstrate the species present at that time, and highlight the health consequences for people living under Roman rule. Despite their large multi-seat public latrines with washing facilities, sewer systems, sanitation legislation, fountains and piped drinking water from aqueducts, we see the widespread presence of whipworm (Trichuris trichiura), roundworm (Ascaris lumbricoides) and Entamoeba histolytica that causes dysentery. This would suggest that the public sanitation measures were insufficient to protect the population from parasites spread by fecal contamination. Ectoparasites such as fleas, head lice, body lice, pubic lice and bed bugs were also present, and delousing combs have been found. The evidence fails to demonstrate that the Roman culture of regular bathing in the public baths reduced the prevalence of these parasites. Fish tapeworm was noted to be widely present, and was more common than in Bronze and Iron Age Europe. It is possible that the Roman enthusiasm for fermented, uncooked fish sauce (garum) may have facilitated the spread of this helminth. Roman medical practitioners such as Galen were aware of intestinal worms, explaining their existence and planning treatment using the humoural theory of the period.

  5. Prevalencia y factores asociados a la pediculosis en niños de un jardín infantil de Bogotá

    Directory of Open Access Journals (Sweden)

    Ligia Inés Moncada

    2008-06-01

    Conclusión. La infestación por P. humanus capitis tiene altas prevalencias en los escolares del jardín. Esta infestación se encuentra asociada a las malas prácticas higiénicas, a convivir con más de cinco personas en la casa y a la longitud del cabello.

  6. Artritis séptica del pubis en dos deportistas Septic arthritis of the pubic symphysis in two athletes

    OpenAIRE

    José A. Andrews; Daniel Rizzato Lede; Melisa Senderovsky; Bárbara C. Finn; Nicholas Emery; Federico Bottaro; Julio E. Bruetman; Pablo Young

    2012-01-01

    La artritis séptica de pubis u osteomielitis púbica es la infección que compromete la sínfisis pubiana y su articulación. Es poco frecuente, representando menos del 1% de las osteomielitis. Afecta más a menudo a atletas jóvenes y a mujeres que se someten a cirugía ginecológica o urológica. Se presenta con fiebre y dolor púbico, irradiado a genitales, que aumenta con la movilización de la cadera lo que produce claudicación de la marcha. Debe hacerse el diagnóstico diferencial con la osteítis d...

  7. Novel pathomorphologic classification of capsulo-articular lesions of the pubic symphysis in athletes to predict treatment and outcome.

    Science.gov (United States)

    Hopp, Sascha; Ojodu, Ishaq; Jain, Atul; Fritz, Tobias; Pohlemann, Tim; Kelm, Jens

    2018-05-01

    Radiographic abnormalities of the symphysis as well as the formation of accessory clefts, indicating injury at the rectus-adductor aponeurosis, reportedly relate to longstanding groin pain in athletes. However, yet, no systematic classification for clinical and scientific purposes exists. We aimed to (1) create a radiographic classification based on symphysography; (2) test intra- and interobserver reliability; (3) characterise clinical significance of the morphologic patterns by evaluating success of injection therapy. We retrospectively reviewed symphysography, AP radiographs, and MRI of the pelvis from 70 consecutive competitive athletes, with chronic groin pain. Symphysographs were evaluated for intra- and interobserver variance using cohen's kappa statistics. Morphologic studies of the different contrast distribution patterns and their clinical and radiological correlation with symptom relief were investigated. All patients were followed up to evaluate immediate and long-term response to the initial therapeutic injection with steroid. Four reproducible symphysographic patterns were identified: type 0, no changes; type 1, symphyseal disk degeneration; types 2a with unilateral clefts, bilateral clefts (2b), suprapubic clefts (2c); and type 3, with expanded or multidirectional clefts. Analysis revealed excellent intra (0.94)-and interobserver (0.90) reliability. Our findings showed that 78.6% of our patients had significant short-term improvement enabling early resumption of physiotherapy, only in types 1 and 2 (p = 0.001), while type 0 and 3 did not respond. At follow-up, only 21.8% had permanent pain relief. Regarding the detection of pathologic clefts with symphysography, sensitivity (88%) and specifity (77%) were superior to that of MRI. A reproducible symphysography-based classification of distinct morphologic patterns is proposed. It serves as a predictive tool for response to injection therapy in a select group of pathologic lesions. Complete recovery after injection can only be expected in a lesser percentage, as this might indicate surgical treatment for long-term non-responders.

  8. Arthroscopic pubic symphysis debridement and adductor enthesis repair in athletes with athletic pubalgia: technical note and video illustration.

    Science.gov (United States)

    Hopp, Sascha; Tumin, Masjudin; Wilhelm, Peter; Pohlemann, Tim; Kelm, Jens

    2014-11-01

    We elaborately describe our novel arthroscopic technique of the symphysis pubis in athletes with osteitis pubis and concomitant adductor enthesopathy who fail to conservative treatment modalities. The symphysis pubis is debrided arthroscopically and the degenerated origin of adductor tendon (enthesis) is excised and reattached. With our surgical procedure the stability of the symphysis pubis is successfully preserved and the adductor longus enthesopathy simultaneously addressed in the same setting.

  9. A comparison of bladder neck preservation and bladder neck reconstruction for urinary incontinence after radical retro pubic prostatectomy

    Directory of Open Access Journals (Sweden)

    Mohammad Hossein Izadpanahi

    2014-01-01

    Full Text Available Background: Prostate cancer is the sixth most common cancer worldwide and will include about 30% of all malignancies in men. Since the initial report of the anatomic radical prostatectomy, refinements in the surgical technique have been made. Several studies show that bladder neck preservation (BNP during radical prostatectomy makes improve early return of urinary continence, erectile function or both. However, some clinical trials have suggested little difference between the return of continence while using modifications. In this study, we compared outcomes of BNP and bladder neck reconstruction (BNR during radical retropubic prostatectomy (RRP. Materials and Methods: This prospective study was performed on 60 patients at a referral university hospital from March 2010 to March 2012. Study population was all patients candidate for RRP (RRP in this period. All patients divided into two groups, A and B (30 patients in each group. Group A (n = 30 who preserved bladder neck (BNP and Group B (n = 30 who had BNR. Prostate specific antigen (PSA before and at 2, 6, 9, 12 and18 months after surgery, anastomotic stricture symptoms, positive bladder neck margin, Gleason score and urine incontinence were compared between two groups. Also, we compared bladder neck contracture, urinary continence and positive surgical margin rates after BNP and BNR while retropubic prostatectomy in 24 months period follow-up. Results: The mean age of the patients was 61.81 ± 7.15 years (range, 50-74 years. After a follow-up period of 24 months, the PSA rising was not different between the two groups. After 2 months, 19 (63.33% of patients in A group and the same number in B group were continent (P = 0.78. Stricture of the bladder neck at the anastomosis site requiring transurethral dilation occurred in 7 (23.33% and 3 (10.0% patients in groups A and B, respectively (P = 0.04. Conclusion: Although there was no difference in prevalence and duration of return of urinary continence after the operation between two groups, but results of our study showed that stenosis of the bladder neck was lower in BNP. Hence in the group of BNP, need for further operation and overflow incontinency due to the obstruction of urinary tract will be less likely than BNR and patients have better long time (24 months urinary continence.

  10. 78 FR 16630 - Clean Air Act Grant: South Coast Air Quality Management District; Opportunity for Pubic Hearing

    Science.gov (United States)

    2013-03-18

    ... disproportionately impacted or singled out for a reduction. A section 105 recipient must submit a final financial.... The recipient must provide evidence that the air program is not being singled out for a reduction or...

  11. [The Distribution of Pediculus humanus capitis Among Primary School Pupils of the Turkish Chamber of Commerce and Stock Exchange Organisation in Van].

    Science.gov (United States)

    Karaaslan, Selver; Yılmaz, Hasan

    2015-03-01

    This study was performed in order to study the prevalence of Pediculus humanus capitis (P. h. capitis). The study was carried out on pupils between 5-15 years old in a school and kindergarden belonging to the Turkish Chamber of Commerce and Stock Exchange Organization in Van City between November-December 2007. The hair of 863 pupils (especially the neck and the back of head areas), 385 girls and 478 boys, were examined for eggs, nymphs and adults of P. h. capitis. A questionnaire was given to the pupils, which was collected the following day. Lice and their eggs/nits, which were removed from the head of children were transferred to a bottle containing 5% glycerin in 70% ethyl alcohol. Later they were sent to the Parasitology Laboratory of the Health Research and Training Hospital of Yüzüncü Yıl University. Eggs/nits were found in 164 (42.6%) of the girls and in 34 (7.1%) of the boys (overall 198 (22.9%) infested pupils). The prevalence of P. h. capitis was high, especially in girls. The infestation rates observed and the evaluation of the questionnaire showed that there is a statistically significant relationships between pediculosis capitis and sex, level of family income, education level of the mother, number of baths taken per weekly, number of family members living in the same home, room number per capita, and hair length (p0.05).

  12. Infestation by Haematopinus quadripertusus on cattle in São Domingos do Capim, state of Pará, Brazil Infestação por Haematopinus quadripertusus em bovinos de São Domingos do Capim, Estado do Pará, Brasil

    Directory of Open Access Journals (Sweden)

    Alessandra Scofield

    2012-09-01

    Full Text Available Severe infestation with lice was observed on crossbred cattle (Bos taurus indicus ×Bos taurus taurus in the municipality of São Domingos do Capim, state of Pará, Brazil. Sixty-five animals were inspected and the lice were manually collected, preserved in 70% alcohol and taken to the Animal Parasitology Laboratory, School of Veterinary Medicine, Federal University of Pará, Brazil, for identification. The adult lice were identified as Haematopinus quadripertusus, and all the cattle examined were infested by at least one development stage of this ectoparasite. The specimens collected were located only on the tail in 80% (52/65 of the cattle, while they were around the eyes as well as on the ears and tail in 20% (13/65. Nits, nymphs and adults of the parasite were respectively collected from 98.46% (64/65, 38.46% (25/65 and 23.08% (15/65 of the animals examined. This is the first report of bovine pediculosis caused by H. quadripertusus in the state of Pará, Brazil. Further studies should be conducted to determine the occurrence pattern of this species in Brazil and its importance to livestock production.Alta infestação por piolhos foi observada em vacas mestiças Bos taurus indicus e Bos taurus taurus do município de São Domingos do Capim, Estado do Pará, Brasil. Sessenta e cinco animais foram inspecionados e os piolhos foram coletados manualmente, armazenados em álcool 70% e transportados ao Laboratório de Parasitologia Animal da Faculdade de Medicina Veterinária da Universidade Federal do Pará para a identificação. Os exemplares adultos foram identificados como Haematopinus quadripertusus e todos os animais examinados apresentaram pelo menos um estágio de desenvolvimento do ectoparasito. Em 80% (52/65 dos animais, os exemplares coletados localizavam-se somente na cauda e em 20% (13/65 na região periocular, orelha e cauda. Lêndeas, ninfas e adultos foram coletados, respectivamente, em 98,46% (64/65, em 38,46% (25/65 e em 23

  13. The egg string attachment mechanism in salmon lice Lepeophtheirus salmonis (Copepoda: Caligidae)

    NARCIS (Netherlands)

    Schram, Thomas A.

    2000-01-01

    The anatomy of the genital complex and the hook apparatus that keeps the trailing egg strings in position, are illustrated and described. Based on light and scanning electron microscopy, it is shown how the sacs are mechanically secured by the penetration of a pair of hooks through the proximal ends

  14. Molecular evidence for polyphyletic origin of the primary symbionts of sucking lice (Phthiraptera, Anoplura)

    Czech Academy of Sciences Publication Activity Database

    Hypša, Václav; Křížek, J.

    2007-01-01

    Roč. 54, č. 2 (2007), s. 242-251 ISSN 0095-3628 Grant - others:GA ČR(CZ) GA206/04/0520 Institutional research plan: CEZ:AV0Z60220518 Keywords : Anoplura * endosymbionts * coevolution * molecular phylogeny Subject RIV: EE - Microbiology, Virology Impact factor: 2.558, year: 2007

  15. EL EFECTO DE LA TRIPLE HÉLICE EN LOS RESULTADOS DE INNOVACIÓN

    Directory of Open Access Journals (Sweden)

    María Obeso

    2013-07-01

    Full Text Available Innovation is related to the growth of economies and companies, and in a changing environment, like the present, it is introduced as a fundamental means for competitive advantage. This study aims at analyzing the relation between the companies’ capacity for innovation and obtaining the same information by means of cooperation with competitors, suppliers, universities and public institutions (Triple Helix. First, we developed a literature review on related concepts and, then, by using the structural equation method, we elaborated a model to respond to and accept the hypothesis proposed, which highlights the relation between the innovative performance of companies and the information obtained from the Triple Helix. The survey was conducted with a sample of Spanish companies researched by the National Institute of Statistics (INE from 2008 to 2010.

  16. Can agricultural drugs be used against lice? accident, suicide or truth? case presentations

    OpenAIRE

    Kose, Ataman; Yildirim, Cuma; Kose, Beril; Gunay, Nurullah; Zengin, Suat

    2013-01-01

      Abstract. Agriculture is an important source of living in our country. Therefore, poisoning with agricultural drugs is quite common. 4,6 dinitro-ocresol nitrophenol (C7H6N2O5) is a pesticide, which belongs to the nitrophenol group, is used on fruit trees in winter and is known as the “yellow” drug among the public. In our country, intoxication with nitrophenols has not been reported previously in the literature. However, they may be lethal even by dermal route. This rare type of intoxicatio...

  17. New records of lice (Insecta: Phthiraptera) from domestic and ornamental birds from Chile

    OpenAIRE

    González-Acuña, D; Lara, J; Cicchino, A

    2009-01-01

    Por medio del examen del plumaje de aves domésticas y ornamentales en Chile se reconfirma la presencia de los phthiraptera Menopon gallinae, Goniodes gigas, Goniocotes gallinae y Menacanthus stramineus en la gallina doméstica, Gallus gallus domesticus y se registra además por primera vez en el país la especie Menacanthus pallidulus. En aves ornamentales se registran en pavo, Meleagris gallipavo, la especie M. stramineus, en pavo real, Pavo cristatus las especies Goniodes pavonis y Amrysidea m...

  18. The jumping plant-lice of the Neotropical genus Tainarys (Hemiptera: Psylloidea) associated with Anacardiaceae.

    Science.gov (United States)

    Burckhardt, Daniel; Queiroz, Dalva L

    2017-02-20

    The Neotropical psyllid genus Tainarys Brèthes, 1920 is revised to include 14 extant and one fossil species from Dominican amber. Eight species are described as new, viz. Tainarys aroeira sp. nov., T. atra sp. nov., T. hapla sp. nov., T. myracrodrui sp. nov., T. nigricornis sp. nov., T. didyma sp. nov. and T. orientalis sp. nov. from Brazil, the last two also from Uruguay, as well as T. lozadai sp. nov. from Peru. The fifth instar immatures are described for nine species. †Vicinilura Klimaszewski, 1996, erected for the fossil †V. reposta Klimaszewski, 1996 and previously synonymised with Leurolophus Tuthill, 1942, is synonymised here (syn. nov.) with Tainarys and †V. reposta is transferred to become †Tainarys reposta (Klimaszewski), comb. nov. The descriptions are supplemented by illustrations and keys for the identification of adults and immatures. Phylogenetic relationships between species are investigated with a cladistic analysis using 22 adult and six immature morphological characters. The analysis resulted in a single most parsimonious, fully resolved tree. The fossil species is nested within the genus rather than being the sister taxon of the remainder of species. The extant species are restricted to the subtropical and temperate parts of South America. Three pairs of sister clades display an east‒west South American and one a midwest‒southern Brazilian geographical vicariance. Host plants are confirmed for nine and likely for another four species. They are Astronium, Haplorhus, Myracrodruon, Schinopsis and Schinus (Anacardiaceae). All Tainarys species appear to be oligophagous inducing irregular leaf curls on their hosts.

  19. The reproductive output of sea lice Caligus rogercresseyi under controlled conditions.

    Science.gov (United States)

    Bravo, Sandra

    2010-05-01

    Gravid females of Caligus rogercresseyi were collected from Atlantic salmon (Salmo salar) from a farm located at Chiloe Island (42 degrees 40'S73 degrees 15'W), Chile, to obtain information about the reproductive output of this parasite in vitro. The egg strings removed from the females were incubated under controlled conditions to obtain virgin adult females. One female which had mated only once produced eleven generations of eggs strings in a period of 74 days. The first egg strings of the females obtained in vitro were produced at 389 degree days ( degrees D) after egg incubation, while the next generations of eggs strings were produced with a periodicity between 4 and 6 days dependent on the water temperature. The average length of the egg string was 3.1mm and the mean number of eggs per string was 31. The values recorded in captivity for the egg string length and the number of eggs per string, were lower than the values recorded in gravid females from the field. One female survived for 79 days and males, maintained separately from the females, survived for 60 days. Copyright 2009 Elsevier Inc. All rights reserved.

  20. [Suspecies criterion in ectoparasites (based on the example of bird lice)].

    Science.gov (United States)

    Eichler, W

    1977-01-01

    It has been proved on Mallophaga that the notion "hostal subspecies" can be applied at the level of intraspecies categories to constant parasites possessing, distinct specificity. The notion should be applied in those cases when there are but small differences between groups of parasites from different hosts (e. g. in sizes) and when hosts belong to different species of the same genus.

  1. Effect of pour-on alphacypermethrin on feed intake, body condition score, milk yield, pregnancy rates, and calving-to-conception interval in buffaloes.

    Science.gov (United States)

    Bifulco, G; Veneziano, V; Cimmino, R; Esposito, L; Auletta, L; Varricchio, E; Balestrieri, A; Claps, S; Campanile, G; Neglia, G

    2015-04-01

    The aims of this study were to assess the efficacy of alphacypermethrin (ACYP) on pediculosis due to Haematopinus tuberculatus and to evaluate the influence of the treatment on productive and reproductive performance in buffaloes (Bubalus bubalis) reared in an intensive system. The trial was performed on 56 pluriparous buffaloes at 86.8 ± 8.1 d in milk. The animals underwent individual louse count and were divided into 2 homogenous groups according to louse count, age, number of lactations, days in milk, live BW, BCS, pregnancy status, and milk yield. Group A (n = 28) was treated by a pour-on formulation of ACYP, and Group S (n = 28) was treated by pour-on saline solution. Individual louse counts were performed weekly on 10 buffaloes in each group. Feed intake was recorded daily and the total mixed ration, individual ingredients, and orts were analyzed to calculate DM ingestion. Individual milk yield was recorded daily and milk samples were analyzed at the beginning of the trial, after 4 wk, and at the end of the trial to assess milk composition. Individual BCS was also evaluated simultaneously. Finally, the animals underwent synchronization of ovulation starting 4 wk after treatment and the pregnancy rate and the calving-conception interval were evaluated. Data were analyzed by the Mann-Whitney test and ANOVA for repeated measures. The infestation was constant in Group S, whereas no lice were present in Group A throughout the study. Daily DMI was similar in the 2 groups (16.7 ± 0.4 vs. 16.3 ± 0.3 kg/d in Group A vs. Group S, respectively), although buffaloes in Group A showed higher (P rate (90.5 vs. 80.9% in Group A vs. Group S, respectively), a lower (P conception interval was recorded in Group A compared to Group S (118 ± 16 vs. 177 ± 16 d in Group A vs. Group S, respectively). In addition to the pour-on treatment against pediculosis, productive and reproductive performance were also improved. This represents a significant improvement in dairy buffalo herd

  2. Management of chronic recurrent osteitis pubis/pubic bone stress in a Premier League footballer: Evaluating the evidence base and application of a nine-point management strategy.

    Science.gov (United States)

    McAleer, Stephen S; Gille, Justus; Bark, Stefan; Riepenhof, Helge

    2015-08-01

    The aim of this paper was to use a clinical example to describe a treatment strategy for the management of recurrent chronic groin pain and evaluate the evidence of the interventions. A professional footballer presented with chronic recurrent OP/PBS. The injury was managed successfully with a nine-point programme - 1. Acute pharmacological management. 2. Tone reduction of over-active structures. 3. Improved ROM at hips, pelvis and thorax. 4. Adductor strength. 5. Functional movement assessment. 6. Core stability. 7. Lumbo-pelvic control. 8. Gym-based strengthening. 9. Field-based conditioning/rehabilitation. The evidence for these interventions is reviewed. The player returned to full training and match play within 41 and 50 days, respectively, and experienced no recurrence of his symptoms in follow up at 13 months. This case report displays a nine-point conservative management strategy for OP/PBS, with non-time dependent clinical objective markers as the progression criteria in a Premier League football player. Copyright © 2015 Elsevier Ltd. All rights reserved.

  3. Soya oil-based shampoo superior to 0.5% permethrin lotion for head louse infestation

    Directory of Open Access Journals (Sweden)

    Nazma A Burgess

    2011-03-01

    Full Text Available Ian F Burgess1, Katrina Kay1,2, Nazma A Burgess1, Elizabeth R Brunton11Medical Entomology Centre, Insect Research and Development Limited, Cambridge, 2Leeds Primary Care Trust, Leeds, UKBackground: This was a randomized, assessor-blind, controlled comparison of a soya oil-based medical device shampoo with a medicinal permethrin lotion in an alcohol vehicle for treatment of head louse infestation to generate data suitable for a regulatory submission to achieve reimbursable status for the shampoo product.Methods: We treated 91 children and adults, divided between two sites, on two occasions 9 days apart. Participants washed their hair and towel-dried it before treatment. The shampoo was used twice for 30 minutes each time. The lotion was used for 30 minutes followed by rinsing. Assessments were made by dry detection combing on days 2, 9, 11, and 14 after the first treatment. According to present knowledge, this combing technique does not influence the overall head louse populations or outcome of treatment.Results: The soya oil shampoo was significantly (P < 0.01 more effective than the lotion for both intention to treat (62.2% versus 34.8% successful treatment and per-protocol (74.3% versus 36.8% success groups. Post-treatment assessments showed the necessity for repeat treatment, but that a 9-day interval was too long because if eggs hatched after the first treatment, the lice could grow old enough to lay eggs before the second treatment.Conclusion: The soya oil-based shampoo was more effective than the permethrin lotion, more cosmetically acceptable, and less irritant.Keywords: pediculosis, medical device, medicinal product, insecticide, vegetable oil

  4. Modelo Triple hélice e incubadoras de empresas: una propuesta de evaluación

    Directory of Open Access Journals (Sweden)

    Rosa Azalea Canales García

    2012-05-01

    Full Text Available En los últimos años, como resultado de la globalización, de la producción basada en le know-how de las personas y en el uso intensivo de tecnologías de información, el conocimiento es reconocido un factor de producción "intagibles" capaz de transformar y combinar factores "tangibles" con fines de innovación y desarrollo económico. Este hecho se ha manifestado en la formulación de un nuevo enfoque llamado economía del conocimiento sustentado en las condiciones productivas, económicas e institucionales bajo las cuales se produce, acumula y trasmite el conocimiento.

  5. Tallado de hélices por el método de copiado por proyección

    Directory of Open Access Journals (Sweden)

    José Vicente Fierro Vasco

    1983-01-01

    Full Text Available Este dispositivo fue diseñado como parte de la investigación sobre Aerogeneradores que se está llevando a cabo en el Departamento de Ingeniería Mecánica, cuyo investigador principal es el Ing. Julio Mario Rodríguez Devis. Como parte inicial de la investigación se adecuó un túnel situado en el Laboratorio de Hidráulica para hacer las pruebas de modelos. En la construcción de dichos modelos se requiere una buena precisión en la hechura de las aspas del molino, en especial por el tamaño reducido de liste. Se debe garantizar que el perfil aerodinámico se conserve a lo largo del aspa, por lo que se requiere de un dispositivo capaz de tallar los álabes con la precisión y rapidez necesarias. Los resultados del trabajo fueron presentados al concurso del premio Worthington de la Ingeniería Colombiana 1982 (Categoría estudiantes, por los estudiantes que trabajaron en el proyecto, siendo acreedores al primer puesto.

  6. Review of the systematics, biology and ecology of lice from pinnipeds and river otters (Insecta: Phthiraptera: Anoplura: Echinophthiriidae).

    Science.gov (United States)

    Soledad Leonardi, Maria; Palma, Ricardo Luis

    2013-01-01

    We present a literature review of the sucking louse family Echinophthiriidae, its five genera and twelve species parasitic on pinnipeds (fur seals, sea lions, walruses, true seals) and the North American river otter. We give detailed synonymies and published records for all taxonomic hierarchies, as well as hosts, type localities and repositories of type material; we highlight significant references and include comments on the current taxonomic status of the species. We provide a summary of present knowledge of the biology and ecology for eight species. Also, we give a host-louse list, and a bibliography to the family as complete as possible.

  7. Chewing lice of genus Myrsidea (Phthiraptera: Menoponidae) from Turdidae (Passeriformes) of Costa Rica, with descriptions of seven new species

    Czech Academy of Sciences Publication Activity Database

    Kounek, F.; Sychra, O.; Čapek, Miroslav; Literák, I.

    2013-01-01

    Roč. 3620, č. 3620 (2013), s. 201-222 ISSN 1175-5326 R&D Projects: GA AV ČR IAA601690901; GA MŠk LC06073 Institutional support: RVO:68081766 Keywords : Amblycera * Myrsidea * new species * new host -louse associations * population dynamics * Turdidae * Catharus * Myadestes * Turdus * Costa Rica Subject RIV: EG - Zoology Impact factor: 1.060, year: 2013

  8. The chewing lice (Phthiraptera) of red-billed quelea (Quelea quelea) in Senegal, with a description of a new species

    Czech Academy of Sciences Publication Activity Database

    Sychra, O.; Barlev, E.; Literák, I.; Čapek, Miroslav; Koubek, Petr; Procházka, Petr

    2010-01-01

    Roč. 18, č. 1 (2010), s. 17-22 ISSN 1021-3589 R&D Projects: GA AV ČR IAA6093404; GA AV ČR IAA601690901 Institutional research plan: CEZ:AV0Z60930519 Keywords : Ploceidae * sex ratio * Mallophaga Subject RIV: EG - Zoology Impact factor: 0.338, year: 2010

  9. Chewing lice (Phthiraptera) from wild birds in Senegal, with descriptions of three new species of the genera Brueelia and Philopteroides

    Czech Academy of Sciences Publication Activity Database

    Najer, T.; Sychra, O.; Literák, I.; Procházka, Petr; Čapek, Miroslav; Koubek, Petr

    2012-01-01

    Roč. 57, č. 1 (2012), s. 90-98 ISSN 1230-2821 R&D Projects: GA AV ČR IAA6093404; GA AV ČR IAA601690901; GA MŠk LC06073 Institutional research plan: CEZ:AV0Z60930519 Keywords : Rallicola * Emersoniella * Rallicola centropus * Sunbird * Coucal * new host records Subject RIV: EG - Zoology Impact factor: 1.000, year: 2012

  10. Receiver-operating characteristic curves for somatic cell scores and California mastitis test in Valle del Be lice dairy sheep

    NARCIS (Netherlands)

    Riggio, V.; Pesce, L.L.; Morreale, S.; Portolano, B.

    2013-01-01

    Using receiver-operating characteristic (ROC) curve methodology this study was designed to assess the diagnostic effectiveness of somatic cell count (SCC) and the California mastitis test (CMT) in Valle del Belice sheep, and to propose and evaluate threshold values for those tests that would

  11. Coexisting Miocene Alkaline Volcanic Series Associated with the Cheb-Domažlice Graben (W Bohemia): Geochemical Characteristics

    Czech Academy of Sciences Publication Activity Database

    Ulrych, Jaromír; Štěpánková, Jana; Lloyd, F. E.; Balogh, K.

    2003-01-01

    Roč. 54, č. 1 (2003), s. 53-64 ISSN 1335-0552 R&D Projects: GA ČR GA205/99/0907 Grant - others:Hungarian Academy of Sciences Foundation(HU) T 014961 Institutional research plan: CEZ:AV0Z3013912 Keywords : W Bohemia * Miocene volkanism * geochemistry Subject RIV: DB - Geology ; Mineralogy Impact factor: 0.397, year: 2003 http://www.geologicacarpathica.sk/src/main.php

  12. Influencia de las condiciones de preparación en la luminiscencia de recubrimientos de sílice pura

    Directory of Open Access Journals (Sweden)

    García, M. A.

    2000-10-01

    Full Text Available SiO2 coatings prepared by sol-gel technique show an UV-Visible luminescence with a maximum centered at about 3.4 eV (365 nm. The emission spectrum can be decomposed into two Gaussian shape bands, centered at 3.35 eV (370 nm and 3.0 eV (415 nm, respectively. The corresponding excitation spectrum shows a band centered at 3.85 eV (320 nm. In order to clarify the origin of that luminescence, a study as a function of precursors used for coatings preparation was done, as well as a function of thermal treatments carried out during densification. Moreover, the presence of organic matter in the coatings prior to densification, modifies their luminescent properties. So that, some variations of the luminescence spectrum could be understood as the result of both changes in the residual organics of coatings and variations in the surplus oxygen content.

    Los recubrimientos de SiO2 preparados mediante la técnica sol-gel, presentan una luminiscencia en la zona UV-Visible del espectro con un máximo centrado en torno a 3,4 eV (365 nm. El espectro de emisión puede descomponerse en dos bandas de perfil gausiano, centradas en 3,35 eV (370 nm y 3,0 eV (415 nm, respectivamente. El espectro de excitación correspondiente a esta emisión presenta una banda centrada en 3,85 eV (320 nm. Con objeto de clarificar el origen de esta luminiscencia se ha realizado el estudio según los precursores utilizados en la preparación de los recubrimientos y el efecto que los tratamientos térmicos de densificación tienen sobre la luminiscencia. Asimismo, se ha comprobado que la presencia de materia orgánica en los recubrimientos antes de ser densificados modifica las propiedades luminiscentes de los mismos. Por tanto, ciertas variaciones en el espectro de la luminiscencia podrían interpretarse como indicativas de un cierto cambio en el contenido de restos orgánicos en el recubrimiento, así como de posibles variaciones del contenido en exceso de oxígeno.

  13. 基于PPP模式的建筑垃圾资源化产业研究%RESEARCH ON THE CONSTRUCTION WASTE DEMOLITION-RECYCLING INDUSTRY BASED ON THE PUBIC PRIVATE PARTNERSHIPS MODEL

    Institute of Scientific and Technical Information of China (English)

    樊兴华; 高晶晶; 薛振华

    2017-01-01

    为解决建筑垃圾资源化产业项目融资不足、管理困难的难题,提出在建筑垃圾产业中引入PPP模式可实现政府和企业“双赢”的效果.经过对比分析,BOO是最适合建筑垃圾处理产业项目的模式.通过对建筑垃圾资源化产业PPP运行模式和效益分析,得出PPP模式应用于建筑垃圾资源化产业项目是切实可行的.%To solve the deficient financing and difficult management problems for the construction waste recycling industry project,it is presented that the introduction of PPP model into construction waste industry can achieve a win-win effect between government and enterprises.After the comparison and analysis,boo is found to be the most suitable for construction waste disposal mode of industrial projects.Based on the operation modes and the analysis on the benefit of the construction waste resource industry PPP model,it is concluded that the application of the PPP model to construction waste recycling industry project is feasible.

  14. Deferred endoscopic urethral realignment: Role in management of ...

    African Journals Online (AJOL)

    M.A. Elgammal

    of the pubic symphysis; B2, ipsilateral compression causing over- riding pubic ... medium through the suprapubic tube, and the posterior urethra was visualized ... (using anterior–posterior and lateral plane), the needle was passed not more ...

  15. Hromadný nález dáckých tetradrachem z Holýšova (okr. Domažlice)

    Czech Academy of Sciences Publication Activity Database

    Militký, Jiří

    2013-01-01

    Roč. 27, č. 1 (2013), s. 115-118 ISSN 0546-9414 R&D Projects: GA ČR GA13-24707S Institutional support: RVO:67985912 Keywords : Bohemia * Transylvania * Celts * tetradrachm * coin import Subject RIV: AC - Archeology, Anthropology, Ethnology

  16. Distribution and persistence of the anti sea-lice drug teflubenzuron in wild fauna and sediments around a salmon farm, following a standard treatment

    International Nuclear Information System (INIS)

    Samuelsen, Ole B.; Lunestad, Bjørn T.; Hannisdal, Rita; Bannister, Raymond; Olsen, Siri; Tjensvoll, Tore; Farestveit, Eva; Ervik, Arne

    2015-01-01

    The salmon louse (Lepeoptheirus salmonis) is a challenge in the farming of Atlantic salmon (Salmo salar). To treat an infestation, different insecticides are used like the orally administered chitin synthetase inhibitor teflubenzuron. The concentrations and distribution of teflubenzuron were measured in water, organic particles, marine sediment and biota caught in the vicinity of a fish farm following a standard medication. Low concentrations were found in water samples whereas the organic waste from the farm, collected by sediment traps had concentrations higher than the medicated feed. Most of the organic waste was distributed to the bottom close to the farm but organic particles containing teflubenzuron were collected 1100 m from the farm. The sediment under the farm consisted of 5 to 10% organic material and therefore the concentration of teflubenzuron was much lower than in the organic waste. Teflubenzuron was persistent in the sediment with a stipulated halflife of 170 days. Sediment consuming polychaetes had high but decreasing concentrations of teflubenzuron throughout the experimental period, reflecting the decrease of teflubenzuron in the sediment. During medication most wild fauna contained teflubenzuron residues and where polychaetes and saith had highest concentrations. Eight months later only polychaetes and some crustaceans contained drug residues. What dosages that induce mortality in various crustaceans following short or long-term exposure is not known but the results indicate that the concentrations in defined individuals of king crab, shrimp, squat lobster and Norway lobster were high enough shortly after medication to induce mortality if moulting was imminent. Considering food safety, saith and the brown meat of crustaceans contained at first sampling concentrations of teflubenzuron higher than the MRL-value set for Atlantic salmon. The concentrations were, however, moderate and the amount of saith fillet or brown meat of crustaceans to be consumed in order to exceed ADI is relatively large. - Highlights: • Distribution of teflubenzuron was studied in the marine environment after medication • Teflubenzuron containing organic particles were collected 1100 m from the farm • Teflubenzuron persists in the sediment for a prolonged time • Residues were found in nearly all species of biota collected • Residues found in saith and crab exceeded the MRL value given for farmed salmon

  17. Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts

    NARCIS (Netherlands)

    Wells, A.; Grierson, C.E.; MacKenzie, M.A.; Russon, I.; Middlemiss, C.; Bjorn, P.A.; Finstad, B.; Wendelaar Bonga, S.E.; Todd, C.D.; Hazon, N.

    2006-01-01

    For wild, sea-run brown trout (Salmo trutta) smolts, the physiological consequences of abrupt transfer to seawater and simultaneous challenge with copepodid larvae of the sea louse, Lepeophtheirus salmonis (Kr�yer, 1837), were investigated in the laboratory. Analysis of osmoregulatory, metabolic,

  18. Chewing lice (Phthiraptera) from buntings, cardinals and tanagers (Passeriformes: Emberizidae, Cardinalidae, Thraupidae) from Costa Rica, with descriptions of two new species of the genus Myrsidea (Phthiraptera: Menoponidae)

    Czech Academy of Sciences Publication Activity Database

    Sychra, O.; Literák, I.; Čapek, Miroslav; Havlíček, M.

    2007-01-01

    Roč. 1631, - (2007), s. 57-68 ISSN 1175-5326 Institutional research plan: CEZ:AV0Z60930519 Keywords : Myrsidea * new host -louse associations Subject RIV: EG - Zoology Impact factor: 0.691, year: 2007 http://www.mapress.com/zootaxa/2007f/zt01631p068.pdf

  19. Nanomateriales de sílice mesoestructurada: aplicación en infección y cáncer

    OpenAIRE

    Martínez Carmona, Marina

    2016-01-01

    La nanomedicina es una disciplina científica que ha experimentado un gran apogeo en los últimos años, lo que ha permitido mejorar la calidad y la expectativa de vida en la sociedad contemporánea. Gracias a ella se han desarrollado nuevos nanomateriales, agentes terapéuticos y técnicas innovadoras para el diagnóstico, la prevención y el tratamiento de diversas enfermedades. Todo ello a partir de la comprensión de las bases moleculares de las distintas patologías, como enfermedades infecciosas,...

  20. Les Délices de L'anniversaire. Une Mise en Représentation de L'enfance. The pleasures of birthday: a representation of childhood

    Directory of Open Access Journals (Sweden)

    Sirota, Régine

    2008-11-01

    Full Text Available O artigo da Profa. Régine Sirota: As delícias do aniversário: uma representação da infância nos mostra que além desta festa fazer parte de uma espécie de relógio social que marca os acontecimentos sociais e culturais, socializando e construindo os indivíduos no interior de uma determinada cultura, com suas regras de civilidade (dar e receber presentes, por exemplo, por esta via transmite uma cultura literária, gastronômica além de produzir a infância. Por outro lado, é também, uma forma de estetização do cotidiano. O artigo a partir de algo, aparentemente efêmero e pequeno como um bolo de aniversário, refaz e discute de maneira impressionante, conceitos preciosos da história cultural: como a civilidade e as coisas “ordinárias”, e da sociologia da criança e da infância, para além do processo de socialização.The article of Professor Régine Sirota – The pleasures of birthday: a representation of childhood – shows us that, apart from being part of a kind of social clock that sets the social and cultural situations, socializing and building individuals in a determined culture, with its rules of civility (give and get gifts, for instance, it also portrays a gastronomic and literary culture, producing childhood. However, it is also a way of aesthetically portray daily life. Having something apparently ephemeral and small as a birthday cake as starting point, the article wonderfully rebuilds and discusses precious concepts of cultural history: civility, “ordinary” things and childhood sociology beyond the socialization process.

  1. Comportamiento óptico no-lineal de nanocristales semiconductores de CdS en una matriz de gel de sílice

    Directory of Open Access Journals (Sweden)

    de la Rosa-Fox, N.

    2000-06-01

    Full Text Available Nanocrystals embedded in a dielectric matrix can be obtained through sol-gel method, it permits the control of several kinetic parameters during the nanocrystal growth. The size and size distribution have been studied by means small-angle neutron scattering techniques (SANS, that allow a spatial resolution from 1 to 50 nm. High intensity optical excitation from a Nd:YAG laser (6 ns pulse at 10 Hz repetition rate was focused on the sample to study the photoluminescence yield at rigth angle. The spectrum shows radiative process from intrinsic transitions (2.76 eV and a broad band in the lower energy side (1.65 eV that correspond to crystal surface traps. The photoluminescence yield grows superlineary giving rise to amplified intensity (60 cm-1 due to biexciton species, this fact can be interpreted as a non-linear optical behaviour coming from the CdS nanocrystals.

    La inclusión de nanocristales en una matriz dieléctrica puede realizarse mediante el método sol-gel, permitiendo el control de parámetros cinéticos en el crecimiento de los cristales. El tamaño y distribución de dichos nanocristales se han estudiado por medio de difusión de neutrones a bajo ángulo (SANS, con una resolución espacial entre 1 y 50 nm. Bajo excitación óptica de alta intensidad, usando un láser (Nd:YAG con pulsos de 6 ns y una frecuencia de repetición de 10 Hz, se focalizó en la muestra para registrar la señal de fotoluminiscencia en la dirección perpendicular. El espectro indica procesos radiativos debidos a transiciones intrínsecas (2.76 eV y una banda ancha a más baja energía (1.65 eV correspondiente a recombinaciones en los defectos superficiales. La señal de fotoluminiscencia crece superlinealmente dando lugar a una amplificación (60 cm-1 debida principalmente a biexcitones que indican un comportamiento óptico no-lineal de los nanocristales de CdS.

  2. Distribution and persistence of the anti sea-lice drug teflubenzuron in wild fauna and sediments around a salmon farm, following a standard treatment

    Energy Technology Data Exchange (ETDEWEB)

    Samuelsen, Ole B. [Institute of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen (Norway); Lunestad, Bjørn T.; Hannisdal, Rita [National Institute of Nutrition and Seafood Research, P.O. Box 2029 Nordnes, N-5817 Bergen (Norway); Bannister, Raymond; Olsen, Siri [Institute of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen (Norway); Tjensvoll, Tore [National Institute of Nutrition and Seafood Research, P.O. Box 2029 Nordnes, N-5817 Bergen (Norway); Farestveit, Eva; Ervik, Arne [Institute of Marine Research, P.O. Box 1870 Nordnes, N-5817 Bergen (Norway)

    2015-03-01

    The salmon louse (Lepeoptheirus salmonis) is a challenge in the farming of Atlantic salmon (Salmo salar). To treat an infestation, different insecticides are used like the orally administered chitin synthetase inhibitor teflubenzuron. The concentrations and distribution of teflubenzuron were measured in water, organic particles, marine sediment and biota caught in the vicinity of a fish farm following a standard medication. Low concentrations were found in water samples whereas the organic waste from the farm, collected by sediment traps had concentrations higher than the medicated feed. Most of the organic waste was distributed to the bottom close to the farm but organic particles containing teflubenzuron were collected 1100 m from the farm. The sediment under the farm consisted of 5 to 10% organic material and therefore the concentration of teflubenzuron was much lower than in the organic waste. Teflubenzuron was persistent in the sediment with a stipulated halflife of 170 days. Sediment consuming polychaetes had high but decreasing concentrations of teflubenzuron throughout the experimental period, reflecting the decrease of teflubenzuron in the sediment. During medication most wild fauna contained teflubenzuron residues and where polychaetes and saith had highest concentrations. Eight months later only polychaetes and some crustaceans contained drug residues. What dosages that induce mortality in various crustaceans following short or long-term exposure is not known but the results indicate that the concentrations in defined individuals of king crab, shrimp, squat lobster and Norway lobster were high enough shortly after medication to induce mortality if moulting was imminent. Considering food safety, saith and the brown meat of crustaceans contained at first sampling concentrations of teflubenzuron higher than the MRL-value set for Atlantic salmon. The concentrations were, however, moderate and the amount of saith fillet or brown meat of crustaceans to be consumed in order to exceed ADI is relatively large. - Highlights: • Distribution of teflubenzuron was studied in the marine environment after medication • Teflubenzuron containing organic particles were collected 1100 m from the farm • Teflubenzuron persists in the sediment for a prolonged time • Residues were found in nearly all species of biota collected • Residues found in saith and crab exceeded the MRL value given for farmed salmon.

  3. Characterisation of microsatellite loci in two species of lice, Polyplax serrata (Phthiraptera: Anoplura: Polyplacidae) and/nMyrsidea nesomimi (Phthiraptera: Amblycera: Menoponidae)

    Czech Academy of Sciences Publication Activity Database

    Martinů, Jana; Roubová, V.; Nováková, M.; Smith, V. S.; Hypša, Václav; Štefka, Jan

    2015-01-01

    Roč. 62, FEB 13 2015 (2015), 016 ISSN 1803-6465 R&D Projects: GA ČR GPP506/12/P529 Institutional support: RVO:60077344 Keywords : ectoparasite * population genetics * coevolution * Polypax * Myrsidea * evolution * Europe * Galapagos Subject RIV: EG - Zoology Impact factor: 1.271, year: 2015

  4. Innovando pymes a través de la vinculación con el enfoque de la triple hélice

    Directory of Open Access Journals (Sweden)

    Leonor Gutierrez González

    2016-03-01

    Full Text Available En esta investigación se presenta un análisis sobre la percepción de los empresarios ubicados en la ciudad de la región Centro del estado de Coahuila, respecto a la acción de realizar trabajos de colaboración con la universidad y que sean beneficiados con el apoyo del gobierno. La metodología aplicada fue la revisión teórica en fuentes bibliográficas e investigaciones, nacionales e internacionales; además de una indagación empírica para el levantamiento de la información sobre las acciones de la interacción de las pymes, basada en el enfoque de la “triple hélice”. Los resultados evidencian que es poca la participación con la universidad y/o con centros de investigación y con el apoyo del gobierno a través del Conacyt. La situación existente es la ausencia de una política explícita y sistemática para promover eficientemente la participación de los tres actores sociales. Se propone un programa de vinculación basado en el apoyo a las pymes en investigación, desarrollo e innovación.

  5. Exotic "Gill Lice" Species (Copepoda: Lernaeopodidae: Salmincola SPP.) Infect Rainbow Trout (Oncorhynchus mykiss) and Brook Trout (Salvelinus fontinalis) in the Southeastern United States.

    Science.gov (United States)

    Ruiz, Carlos F; Rash, Jacob M; Besler, Doug A; Roberts, Jackson R; Warren, Micah B; Arias, Cova R; Bullard, Stephen A

    2017-08-01

    Salmincola californiensis infected 25 of 31 (prevalence 0.8; intensity 2-35 [mean 6.6 ± standard deviation 7.7; n = 25]) rainbow trout, Oncorhynchus mykiss, from a private trout farm connected to the Watauga River, North Carolina. Salmincola edwardsii infected all of 9 (1.0; 2-43 [9.3 ± 13.0; 9]) brook trout, Salvelinus fontinalis, from Big Norton Prong, a tributary of the Little Tennessee River, North Carolina. Both lernaeopodids are well-known salmonid pathogens, but neither is native to, nor has been previously taxonomically confirmed from, the southeastern United States. Herein, we (1) use light and scanning electron microscopy to identify and provide supplemental morphological observations of these lernaeopodids, (2) furnish complementary molecular sequence data from the 28S rDNA (28S), and (3) document the pathological effects of gill infections. We identified and differentiated these lernaeopodids by the second antenna (exopod tip with large [S. californiensis] vs. slender [S. edwardsii] spines; endopod terminal segment with subequal ventral processes shorter than [S. californiensis] vs. longer than or equal to [S. edwardsii] dorsal hook), maxilliped palp (length typically ≤1/3 [S. californiensis] vs. 1/3-1/2 [S. edwardsii] subchela length exclusive of claw), and bulla (sub-circular and concave on manubrium's side [S. californiensis] vs. non-stellate [S. edwardsii]). Analysis of the 28S rDNA sequences confirmed our taxonomic assignments as demonstrated by 100% sequence similarity among the sympatric, morphologically-conspecific isolates. Histopathology revealed focal gill epithelial hyperplasia, obstruction of interlamellar water channels, lamellar fusion, and crypting of gill filaments. High intensity infections by either lernaeopodid are surveillance-worthy because they are potentially pathogenic to trout in the southeastern United States.

  6. Efecto de ultrasonicación de alta potencia en las propiedades de un nanocomposite de matriz epoxi reforzado con sílice

    OpenAIRE

    Puech Magaña, Jaime

    2014-01-01

    En la actualidad son muchas las investigaciones realizadas para el desarrollo de nanocomposites de matriz polimérica. Esto se debe a que los refuerzos de escala nanométrica presentan grandes ventajas con respecto a los refuerzos de escalas superiores. Sin embargo, presentan un problema, su difícil dispersión. Los refuerzos de escala nanométrica tienden a formar de agregados o aglomerados denominados clusters, los cuales limitan los beneficios del refuerzo en la matriz. Tras muchas investigaci...

  7. Chewing lice of the genus Myrsidea Waterston (Phthiraptera: Menoponidae) from the Emberizidae and Thraupidae (Passeriformes) in Mato Grosso do Sul, Brazil

    Czech Academy of Sciences Publication Activity Database

    Sychra, O.; Literák, I.; Čapek, Miroslav

    2009-01-01

    Roč. 38, č. 4 (2009), s. 501-503 ISSN 1519-566X R&D Projects: GA AV ČR IAA601690901 Institutional research plan: CEZ:AV0Z60930519 Keywords : Bunting * tanager Subject RIV: EG - Zoology Impact factor: 0.586, year: 2009 http://www.scielo.br/pdf/ne/v38n4/v38n4a10.pdf

  8. Infections Unlikely to be Spread Through Swimming Pools

    Science.gov (United States)

    ... Water Home Infections Unlikely to be Spread Through Swimming Pools Language: English (US) Español (Spanish) Recommend on ... included below. Infections Unlikely to be Spread by Swimming Pools Head Lice Head lice are unlikely to ...

  9. Identification of repellent odorants to the body louse, Pediculus humanus corporis, in clove essential oil.

    Science.gov (United States)

    Iwamatsu, Takuma; Miyamoto, Daisuke; Mitsuno, Hidefumi; Yoshioka, Yoshiaki; Fujii, Takeshi; Sakurai, Takeshi; Ishikawa, Yukio; Kanzaki, Ryohei

    2016-04-01

    The control of body lice is an important issue for human health and welfare because lice act as vectors of disease such as typhus, relapsing fever, and trench fever. Body lice exhibit avoidance behavior to some essential oils, including clove essential oil. Therefore, odorants containing clove essential oil components may potentially be useful in the development of repellents to body lice. However, such odorants that induce avoidance behavior in body lice have not yet been identified from clove essential oil. Here, we established an analysis method to evaluate the avoidance behavior of body lice to specific odorants. The behavioral analysis of the body lice in response to clove essential oil and its constituents revealed that eugenol, a major component of clove essential oil, has strong repellent effect on body lice, whereas the other components failed to induce obvious avoidance behavior. A comparison of the repellent effects of eugenol with those of other structurally related odorants revealed possible moieties that are important for the avoidance effects to body lice. The repellent effect of eugenol to body lice was enhanced by combining it with the other major component of clove essential oil, β-caryophyllene. We conclude that a synthetic blend of eugenol and β-caryophyllene is the most effective repellent to body lice. This finding will be valuable as the potential use of eugenol as body lice repellent.

  10. A rare cause of blepharoconjunctivitis: Phthiriasis palpebrarum

    African Journals Online (AJOL)

    of eye lashes initial. Therefore, lice infestation may easily overlooked and enter to the chronic phase. There are various treatments in lice infestation. Mechanical removal of lice and their nits from eye lashes is the most important stage. Besides this, usage of cryotherapy, argon. Letter to Editor. Figure 2: Biomicroscopic view ...

  11. NJP VOLUME 41 NO 3

    African Journals Online (AJOL)

    PROF. EZECHUKWU

    2014-02-11

    Feb 11, 2014 ... lice infestation.3-5 Good hygienic practices like avoiding sand on hair, social ... prevalence of lice.6,7 Hair hygiene promotes growth of hair, and prevents loss ... Pruritus is the most common symptom of head lice in- festation.12 ... as fatigue, sleepiness in the classroom, and poor learning performance and ...

  12. Estudio magnético de compuestos de nanopartículas de [gamma]-ferrita dispersas en sílice mediante el efecto faraday y su aplicación a sensores de campo magnético

    OpenAIRE

    Rosa Palacios, Gregorio

    2004-01-01

    Se ha realizado un estudio de compuestos de g-Fe2O3/SiO2 a partir de desarrollos teóricos, simulaciones computacionales y pruebas experimentales. Estos experimentos se han basado en el efecto Faraday para determinar diferentes propiedades magnéticas del conjunto de nanopartículas. En este trabajo se describen los montajes experimentales desarrollados y los resultados obtenidos, así como su adecuación tanto a la teoría como a las simulaciones computacionales. Se ha conseguido determinar tamaño...

  13. Protección contra la oxidación de materiales compuestos SiC(C/SiC mediante la combinación de recubrimientos de silicatos de itrio y sílice

    Directory of Open Access Journals (Sweden)

    Aparicio, M.

    2001-12-01

    Full Text Available The factor which currently precludes the use of carbon fibre reinforced silicon carbide (C/SiC in high temperature structural applications is the oxidation of carbon fibres at temperatures greater than 450ºC (1. For this reason, it is necessary to develop coatings capable of protecting C/SiC components from oxidation for extended periods at 1600ºC. Conventional coatings consist of multilayers of different materials with complementary antioxidant properties. The objective of this work was to develop a multilayer coating consisted by a bonding layer of SiC, a intermediate layer of yttrium silicates: Y2Si2O7 and Y2SiO5, and an external layer of SiO2. Different techniques have been used to prepare the layers: painting with policarbosilane solutions, slip-coating and sol-gel, respectively. The behaviour against oxidation of coated composite material has been evaluated, and the samples before and after oxidation has been characterised by SEM. The cracking of SiC coating leads to a very low oxidation resistance at low temperatures. Only when the substrate is protected by the trilayer coating the reduction of the oxidation rate is considerable, and the weight loss is reduced from 50% (with a SiC coating to 15%.

    El principal inconveniente para la utilización de los materiales compuestos C/SiC en aplicaciones estructurales de alta temperatura es la elevada velocidad de oxidación de la fibra de carbono por encima de 450°C (1. Por esta razón, es necesario el desarrollo de recubrimientos capaces de proteger de la oxidación a estos materiales durante periodos prolongados a temperaturas de hasta 1600°C. Habitualmente, los recubrimientos están formados por multicapas con características antioxidantes complementarias. El objetivo de este trabajo ha sido el desarrollo de un recubrimiento multicapa formado por una capa interior de SiC, una intermedia de silicatos de itrio: Y2Si2O7 y Y2SiO5, y una exterior de SiO2. En su procesamiento se han empleado diferentes técnicas: pulverizado con soluciones de policarbosilanos, inmersión en suspensiones coloidales y técnica solgel, respectivamente. Se ha analizado la influencia sobre la resistencia a la oxidación del material, y se ha realizado un estudio microestructural por MEB previo y posterior al ensayo de oxidación. Las presencia de fisuras en la capa interior de SiC origina una resistencia a la oxidación muy reducida a baja temperatura. Solamente cuando el substrato está protegido por la triple capa la reducción de la velocidad de oxidación es considerable y la pérdida de peso se reduce del 50%, cuando el substrato está protegido por la capa de SiC, al 15% con la triple capa.

  14. Membranas híbridas basadas en estireno-metacrilato-sílice y ácido fosfowolfrámico obtenidas por sol-gel para pilas de combustible de intercambio protónico (PEMFC

    Directory of Open Access Journals (Sweden)

    Mosa, J.

    2007-10-01

    Full Text Available Contrary to internal combustion engines, proton-exchange membrane fuel cells (PEMFC used in transportation operate with zero emissions of environmental pollutants. The increase of the operation temperature in PEMFC above 100°C is a great concern for the application of this type of cells in electric vehicles. Hybrid organic-inorganic membranes with nanosized interfaces can combine the main properties of their components to meet this objective. Styrene-methacrylate-silica membranes doped with phosphotungstic acid (PWA were prepared through acid catalyzed sol-gel process and free-radical copolymerization. Additionally, sulfonation processes of aromatic rings to produce attached SO3H groups were applied to increase the proton conductivity. The effect of sulfonation degree and PWA doping on the membrane properties such as chemical and thermal stability, water uptake, ion exchange capacity, and proton conductivity were investigated. The measurement of conductivity shows a general increase with rising temperatures and with the increasing of SO3H groups density, reaching a maximum value of 3.2 10-3 S/cm at 130ºC and 100%HR.

    Comparadas con los motores de combustión interna, las pilas de combustible de intercambio de protones (PEMFC son capaces de operar sin emisiones de agentes contaminantes. El aumento de la temperatura de operación de la pila de combustible por encima de 100ºC es uno de los grandes objetivos en este campo ya que facilitaría el desarrollo comercial de los vehículos eléctricos impulsados por pilas de combustible. Las membranas híbridas orgánico-inorgánicas nanoestructuradas combinan las propiedades necesarias para este tipo de aplicación. Se obtuvieron membranas híbridas dopadas con ácido fosfowolfrámico (PWA por copolimerización radicálica a partir de alquilalcóxidos y monómeros de estireno y metacrilato, y por reacción sol-gel vía catálisis ácida. La conductividad protónica se logra realizando un proceso de sulfonación de anillos aromáticos para producir grupos SO3H unidos al anillo. Se ha estudiado el efecto de la sulfonación y el dopado de las membranas con PWA sobre las propiedades de la membrana, tales como la estabilidad química y térmica, retención de agua, capacidad de intercambio iónico y conductividad protónica. Las medidas de conductividad muestran aumento al aumentar la temperatura y la cantidad de grupos SO3H, hasta valores de 3.2 10-3 S/ cm a 130ºC y 100%HR.

  15. Nuevos registros de piojos (Insecta: Phthiraptera) en aves domésticas y ornamentales en Chile New records of lice (Insecta: Phthiraptera) from domestic and ornamental birds from Chile

    OpenAIRE

    D González-Acuña; J Lara; A Cicchino

    2009-01-01

    Por medio del examen del plumaje de aves domésticas y ornamentales en Chile se reconfirma la presencia de los phthiraptera Menopon gallinae, Goniodes gigas, Goniocotes gallinae y Menacanthus stramineus en la gallina doméstica, Gallus gallus domesticus y se registra además por primera vez en el país la especie Menacanthus pallidulus. En aves ornamentales se registran en pavo, Meleagris gallipavo, la especie M. stramineus, en pavo real, Pavo cristatus las especies Goniodes pavonis y Amrysidea m...

  16. Estudio cinético de la eliminación de magnesio en las aleaciones de aluminio mediante la inyección de polvos de sílice

    Directory of Open Access Journals (Sweden)

    Escobedo, J. C.

    2003-06-01

    Full Text Available A kinetic study on the magnesium removal from molten aluminium alloys using submerged SiO2 powders injection is presented. The variables analysed were the chemical content and the particle size of the solid agents, the melt temperature and the injection rate. It was possible to decrease the magnesium content from 1.2 to 0.02wt %, with a low inclusions content. As the main mechanism of the magnesium removal process is of diffusive type, the global process rate increases as the temperature and the injection rate are increased, while decreasing particle size. In all the cases studied, a first order global process was determined and the global rate constants were also evaluated.

    Se presenta un estudio cinético de la eliminación de magnesio de una aleación base aluminio líquida, utilizando la técnica de inyección de agentes sólidos base SiO2 transportados por un gas inerte. Las variables estudiadas son: la composición de los agentes sólidos, la temperatura del baño metálico, la velocidad de inyección y el tamaño de partícula de los agentes sólidos. Se logró disminuir el contenido de magnesio en la aleación, desde 1,2 hasta 0,02 % en peso, encontrándose que, debido a que el mecanismo que gobierna la cinética de eliminación de magnesio es de carácter difusivo, la velocidad de reacción aumenta al incrementarse la temperatura y la velocidad de inyección y al disminuirse el tamaño de partícula. También, se determinó que el proceso de eliminación de magnesio es de primer orden, evaluándose, además, las constantes de velocidad del proceso global a las diferentes condiciones experimentales empleadas.

  17. Improving the Awareness of Personal and Oral Hygiene in Second Graders.

    Science.gov (United States)

    Meleskie-Lippert, Kathleen

    The practicum reported here involved the design of a hygiene awareness unit to help 30 second-grade students in an inner-city school become aware of and improve their personal and oral hygiene, and to provide necessary knowledge concerning pediculosis. Surveys of students and faculty prior to the program demonstrated the need for such a program as…

  18. Development of an Epidemiological Database Management, Extraction, and Analysis System (EPISYS)

    Science.gov (United States)

    1992-07-01

    Cestode Infections 106 11 Trichiniasis 107 11 Filarial Infections 108 11 Ancylostomiasis 109 11 Other Intestinal Helminthiasis 110 11 Other and...UnspecifiMd Helminthiasis 111 II Unspecified Intestinal Parasitism 112 9 Toxoplasmosis 113 6 Urogenital Trichomoniasis 114 10 Pediculosis 115 10 Acariasis 116

  19. Two Bacterial Genera, Sodalis and Rickettsia, Associated with the Seal Louse Proechinophthirus fluctus (Phthiraptera: Anoplura)

    Science.gov (United States)

    Allen, Julie M.; Koga, Ryuichi; Fukatsu, Takema; Sweet, Andrew D.; Johnson, Kevin P.; Reed, David L.

    2016-01-01

    ABSTRACT Roughly 10% to 15% of insect species host heritable symbiotic bacteria known as endosymbionts. The lice parasitizing mammals rely on endosymbionts to provide essential vitamins absent in their blood meals. Here, we describe two bacterial associates from a louse, Proechinophthirus fluctus, which is an obligate ectoparasite of a marine mammal. One of these is a heritable endosymbiont that is not closely related to endosymbionts of other mammalian lice. Rather, it is more closely related to endosymbionts of the genus Sodalis associated with spittlebugs and feather-chewing bird lice. Localization and vertical transmission of this endosymbiont are also more similar to those of bird lice than to those of other mammalian lice. The endosymbiont genome appears to be degrading in symbiosis; however, it is considerably larger than the genomes of other mammalian louse endosymbionts. These patterns suggest the possibility that this Sodalis endosymbiont might be recently acquired, replacing a now-extinct, ancient endosymbiont. From the same lice, we also identified an abundant bacterium belonging to the genus Rickettsia that is closely related to Rickettsia ricketsii, a human pathogen vectored by ticks. No obvious masses of the Rickettsia bacterium were observed in louse tissues, nor did we find any evidence of vertical transmission, so the nature of its association remains unclear. IMPORTANCE Many insects are host to heritable symbiotic bacteria. These heritable bacteria have been identified from numerous species of parasitic lice. It appears that novel symbioses have formed between lice and bacteria many times, with new bacterial symbionts potentially replacing existing ones. However, little was known about the symbionts of lice parasitizing marine mammals. Here, we identified a heritable bacterial symbiont in lice parasitizing northern fur seals. This bacterial symbiont appears to have been recently acquired by the lice. The findings reported here provide insights

  20. Bartonella quintana and Typhus Group Rickettsiae Exposure among Homeless Persons, Bogotá, Colombia.

    Science.gov (United States)

    Faccini-Martínez, Álvaro A; Márquez, Andrea C; Bravo-Estupiñan, Diana M; Calixto, Omar-Javier; López-Castillo, Christian A; Botero-García, Carlos A; Hidalgo, Marylin; Cuervo, Claudia

    2017-11-01

    In 2015, we investigated Bartonella quintana and typhus group rickettsiae in body lice from homeless persons in Bogotá, Colombia. We found B. quintana-infected body lice and seroprevalence of this microorganism in 19% of homeless persons and typhus group rickettsiae in 56%. Public health professionals should start preemptive measures and active vector control.

  1. rodentia: sciuridae

    African Journals Online (AJOL)

    it is apparently not an efficient vector of plague. Sucking lice. The sucking louse, Neohoematopinw heliosciuri has been found on the African tree squinels. Heliosciurus rufobrachium. Funisciurus anerythrus and Paraxerus boehmi em;"i by Rahm (19~2). and. Ledger (1976) additionally records these lice from. Paraxerus ...

  2. Increased susceptibility to infectious salmon anemia virus (ISAv) in Lepeophtheirus salmonis – infected Atlantic salmon

    Science.gov (United States)

    The salmon louse and infectious salmon anemia virus (ISAv) are the two most significant pathogens of concern to the Atlantic salmon (Salmo salar) aquaculture industry. However, the interactions between sea lice and ISAv, as well as the impact of a prior sea lice infection on the susceptibility of th...

  3. Effect of Environmental Conditions and Toxic Compounds on the Locomotor Activity of Pediculus humanus capitis (Phthiraptera: Pediculidae).

    Science.gov (United States)

    Ortega-Insaurralde, I; Toloza, A C; Gonzalez-Audino, P; Mougabure-Cueto, G A; Alvarez-Costa, A; Roca-Acevedo, G; Picollo, M I

    2015-09-01

    In this work, we evaluated the effect of environmental variables such as temperature, humidity, and light on the locomotor activity of Pediculus humanus capitis. In addition, we used selected conditions of temperature, humidity, and light to study the effects of cypermethrin and N,N-diethyl-3-methylbenzamide (DEET) on the locomotor activity of head lice. Head lice increased their locomotor activity in an arena at 30°C compared with activity at 20°C. When we tested the influence of the humidity level, the locomotor activity of head lice showed no significant differences related to humidity level, both at 30°C and 20°C. Concerning light influence, we observed that the higher the intensity of light, the slower the movement of head lice. We also demonstrated that sublethal doses of toxics may alter locomotor activity in adults of head lice. Sublethal doses of cypermethrin induced hyperactivated responses in adult head lice. Sublethal doses of DEET evocated hypoactivated responses in head lice. The observation of stereotyped behavior in head lice elicited by toxic compounds proved that measuring locomotor activity in an experimental set-up where environmental conditions are controlled would be appropriate to evaluate compounds of biological importance, such as molecules involved in the host-parasite interaction and intraspecific relationships. © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  4. Congenital adrenal hyperplasia

    Science.gov (United States)

    ... at birth. However, they may appear to enter puberty early. Symptoms may include: Deepening voice Early appearance of pubic or armpit hair Enlarged penis but normal testes Well-developed muscles Both boys ...

  5. Partial androgen insensitivity syndrome

    Science.gov (United States)

    ... being on the underside of the penis, small penis, small scrotum (with a line down the middle or incompletely closed), or undescended testicles . Breast development in males at time of puberty. Decreased body hair and beard, but normal pubic ...

  6. 52 Elective Abdominal Ultrasonography by Surgeons at MNH, Dar ...

    African Journals Online (AJOL)

    user

    2006-04-01

    USS) is an important diagnostic tool in most specialties of .... changes or could be neuronal in origin; USS detects only anatomical changes. ... with that of transrectal imaging but is limited by the pubic bone5. Transrectal imaging ...

  7. Peripheral conversion and uptake of androgens in a XXY-man with Klinefelter's syndrome

    International Nuclear Information System (INIS)

    Sulcova, J.; Jirasek, J.E.; Neuwirth, J.; Raboch, J.; Starka, L.

    1978-01-01

    The conversion of 3 H-testosterone and the uptake of 3 H-testosterone and 3 H-5α-dihydrotestosterone were investigated in pubic skin and pubic hair follicles of a XXY-man with inadequate pubic hair. The uptake of both androgens was demonstrated in the skin as well as in the hair follicles. Similarly the activity of steroid 5α-reductase was present in both tissues. The total conversion of 3 H-testosterone was 2-3 times higher in the patient than in control persons. In the XXY-man the major metabolites were 5α- and 5β-androstanediols, whereas in the normal men 5α-dihydrotestosterone and 4-androstenedione were mainly formed from testosterone. An explanation of the inadequate growth of pubic hair in our patient seems to be related to a conversion of testosterone - at its low plasma level - to its relatively inactive metabolites. (author)

  8. Genetics Home Reference: Woodhouse-Sakati syndrome

    Science.gov (United States)

    ... sexual development (hypogonadism), which typically becomes apparent during adolescence. Without hormone replacement therapy, affected individuals do not develop secondary sexual characteristics such as pubic hair, breast growth in females, ...

  9. Untitled

    African Journals Online (AJOL)

    Evidence-based advice informs pubic decisions about US food and nutrition policies ... two of the practices bear on the way that evidence-based advice should be used in decision making. .... attention form participants in the policy dialogue.

  10. Journal of Modeling, Design and Management of Engineering ...

    African Journals Online (AJOL)

    The Journal of Modeling, Design & Management of Engineering Systems publishes original ... systems Electronic/Electrical systems Engineering management systems Fuel and Energy systems Information Technology ... systems Pubic Health systems Software Engineering systems Systems and Industrial Engineering ...

  11. Self Service Q&A

    Data.gov (United States)

    Department of Homeland Security — This dataset contains all of the information collected and displayed on the CBP Pubic Website. Contains information from FAQ, Complaints, and topics for travel and...

  12. Body Hair

    Science.gov (United States)

    ... girlshealth.gov/ Home Body Puberty Body hair Body hair Even before you get your first period , you ... removing pubic hair Ways to get rid of hair top Removing body hair can cause skin irritation, ...

  13. 76 FR 50809 - Notice of Availability of a Draft Environmental Assessment for a Proposed Airport Traffic Control...

    Science.gov (United States)

    2011-08-16

    ... National Environmental Policy Act of 1969 (NEPA) and FAA Order 1050.1E, Environmental Impacts: Policies and... is available for public review during a 30-day public comment period at Swanton Pubic Library, 305...

  14. Value-based management in the public sector: more value for the taxpayers´ money? A danish case and the background

    DEFF Research Database (Denmark)

    Pedersen, John Storm

    2006-01-01

    Can value-based management in the public sector lead to improvements in efficiency in the daily operations and improvements in the quality of the pubic services? This is discussed in the article. And the answer is yes!...

  15. Anorchia

    Science.gov (United States)

    ... of male sex characteristics (penis and pubic hair growth, deepening of the voice, and increase in muscle mass) Tests include: Anti-Müllerian hormone levels Bone density Follicle stimulating hormone ( FSH ) and luteinizing hormone ( ...

  16. Tinnea pedis and other dermatological diseases in mentally-retarded children Tiña pedis y otras entidades dermatológicas en un grupo de niños con retraso mental

    OpenAIRE

    Víctor Muñoz; María E. Vargas; María C. Ortega; Marta Lucía Escobar de Villalobos

    1991-01-01

    A group of 133 institutionalized, mentally-retarded children, was evaluated as to the presence of dermatological lesions with special emphasis on tinnea pedis. Mycotic lesions were found in 18 cases; the most frequent one was tinnea pedis (14 Cases) due to T. mentagrophytes or E. floccosum. Other dermatological diseases were found, namely: pediculosis (12 cases), warts (11 cases), chronic eczemas (9 cases), prur...

  17. White piedra: molecular identification of Trichosporon inkin in members of the same family.

    Science.gov (United States)

    Richini-Pereira, Virgínia Bodelão; Camargo, Rosângela Maria Pires de; Bagagli, Eduardo; Marques, Silvio Alencar

    2012-06-01

    White piedra is a superficial mycosis caused by the genus Trichosporon and characterized by nodules on hair shaft. The authors report a family referred to as pediculosis. Mycological culture on Mycosel® plus molecular identification was performed to precisely identify the etiology. A Trichosporon spp. infection was revealed. The molecular procedure identified the agent as Trichosporon inkin. White piedra and infection caused by T. inkin are rarely reported in Southern Brazil. The molecular tools are essentials on identifying the Trichosporon species.

  18. Hair casts

    OpenAIRE

    Sweta S Parmar; Kirti S Parmar; Bela J Shah

    2014-01-01

    Hair casts or pseudonits are circumferential concretions, which cover the hair shaft in such a way that, it could be easily removed. They are thin, cylindrical, and elongated in length. We present an unusual case of an 8-year-old girl presenting with hair casts. Occurrence of these is unusual, and they may have varied associations. This patient was suffering from developmental delay. It is commonly misdiagnosed as and very important to differentiate from pediculosis capitis.

  19. Pediculus capitis en niños de escuelas de la zona urbana de Nuevo León, México: análisis de factores asociados

    Directory of Open Access Journals (Sweden)

    Zinnia J. Molina-Garza

    2017-09-01

    Conclusiones. Los resultados demostraron que la prevalencia de pediculosis capitis en Nuevo León es una de las más altas de México y que es un problema real de salud pública, por lo cual es importante establecer programas de prevención en la escuela y en el hogar para disminuirla o controlarla con la ayuda de las autoridades de salud pública.

  20. Using the Estimating Supplies Program to Develop Material Solutions for the U.S. Air Force Medical Gynecological Treatment Team (FFGYN)

    Science.gov (United States)

    2007-12-10

    Care Unit (FFCCU),10 Oral Surgery Augmentation Team (FFMAX),11 Pediatric Augmentation Team (FFPED),12 and Otolaryngology Team (FFENT).13 The...INFECTIONS (TINEAS/ CANDIDAS /YEASTS) 10 10 210 PEDICULOSIS ALL CASES 1 1 211 SCABIES ALL CASES 1 1 213 CYST/ABSCESS ALL CASES INCLUDING MINOR...ADENOPATHY, CHANCROID, GENITAL HERPES SIMPLEX, LYMPHOGRANULOMA VENEREUEM, SYPHILLIS, HPV 5 5 271 SEXUALLY TRANSMITTED DISEASE, GONORRHEA

  1. Miasis cutánea por Cochliomyia hominivorax (Coquerel (Díptera: Calliphoridae en el Hospital Universidad del Norte, Soledad, Atlántico

    Directory of Open Access Journals (Sweden)

    Claudia M.E. Romero-Vivas

    2009-03-01

    Full Text Available La miasis humana es el parasitismo de órganos y tejidos producido por especies de larvas del orden Díptera. El diagnóstico se realiza con base en hallazgos clínicos y se confirma con estudios entomológicos. Se presenta el caso de una niña de siete años de edad que fue llevada por su padre al servicio de urgencias por presentar fiebre asociada a una lesión abscedada en el cuero cabelludo, con salida espontánea de larvas. Como hallazgo en el examen físico se reportó pediculosis grave. La paciente fue hospitalizada y tratada con clindamicina, gentamicina e ivermectina, y mostró mejoría de sus condiciones clínicas. Se dio alta médica al cuarto día de estancia hospitalaria. Se recolectaron larvas en estadio dos de Cochliomyia hominivorax (Diptera: Calliphoridae directamente del área lesionada, observándose la asociación miasis-pediculosis; por lo tanto, se alerta a los trabajadores del área de la salud del riesgo potencial que representa la pediculosis para el desarrollo de la miasis.

  2. On the anatomy and histology of the pubovisceral muscle enthesis in women.

    Science.gov (United States)

    Kim, Jinyong; Ramanah, Rajeev; DeLancey, John O L; Ashton-Miller, James A

    2011-09-01

    The origin of the pubovisceral muscle (PVM) from the pubic bone is known to be at elevated risk for injury during difficult vaginal births. We examined the anatomy and histology of its enthesial origin to classify its type and see if it differs from appendicular entheses. Parasagittal sections of the pubic bone, PVM enthesis, myotendinous junction, and muscle proper were harvested from five female cadavers (51-98 years). Histological sections were prepared with hematoxylin and eosin, Masson's trichrome, and Verhoeff-Van Gieson stains. The type of enthesis was identified according to a published enthesial classification scheme. Quantitative imaging analysis was performed in sampling bands 2 mm apart along the enthesis to determine its cross-sectional area and composition. The PVM enthesis can be classified as a fibrous enthesis. The PVM muscle fibers terminated in collagenous fibers that insert tangentially onto the periosteum of the pubic bone for the most part. Sharpey's fibers were not observed. In a longitudinal cross-section, the area of the connective tissue and muscle becomes equal approximately 8 mm from the pubic bone. The PVM originates bilaterally from the pubic bone via fibrous entheses whose collagen fibers arise tangentially from the periosteum of the pubic bone. Copyright © 2010 Wiley-Liss, Inc.

  3. Insect bites and stings

    Science.gov (United States)

    ... widow spider bite; Brown recluse bite; Flea bite; Honey bee or hornet sting; Lice bites; Mite bite; ... Saunders; 2016:chap 359. Otten EJ. Venomous animal injuries. In: Walls RM, Hockberger RS, Gausche-Hill M, ...

  4. List of Pests of Significant Public Health Importance

    Science.gov (United States)

    This list is derived in large part from review of the pesticide/pest combinations for which efficacy (product performance) data are submitted and reviewed before registration. Pests that spread disease include cockroaches, lice, mosquitoes, and rodents.

  5. Chrys s sodeixi soybe is inclu an trea udens ated w (Lepid with res ...

    African Journals Online (AJOL)

    SAM

    d effective. Corresponding a uthor(s) agree t ternational Lice . 4562-4567, 10. AJB2014.14169 ... nicius de S orrea, And .... The biological parameters evaluated included, a) larva stage: ... to increase production of the secondary compounds.

  6. Cessation of a salmon decline with control of parasites

    KAUST Repository

    Peacock, Stephanie J.; Krkošek, Martin; Proboszcz, Stan; Orr, Craig; Lewis, Mark A.

    2013-01-01

    (Oncorhynchus gorbuscha) from Pacific Canada indicates that adaptive changes in parasite management on salmon farms have yielded positive conservation outcomes. After four years of sea lice epizootics and wild salmon population decline, parasiticide application

  7. Itching

    Science.gov (United States)

    ... dry skin Irritating chemicals, cosmetics, and other substances Parasites such as pinworms, scabies, head and body lice Pregnancy Liver, kidney, or thyroid diseases Certain cancers or cancer treatments Diseases that can affect the ...

  8. Benzyl Alcohol Topical

    Science.gov (United States)

    Benzyl alcohol lotion is used to treat head lice (small insects that attach themselves to the skin) in adults ... children less than 6 months of age. Benzyl alcohol is in a class of medications called pediculicides. ...

  9. 21 CFR 524.900 - Famphur.

    Science.gov (United States)

    2010-04-01

    ... used as a pour-on formulation for the control of cattle grubs and to reduce cattle lice infestations... days of freshening, calves less than 3 months old, animals stressed from castration, over-excitement or...

  10. Household Products Database: Personal Care

    Science.gov (United States)

    ... styling/sculpting haircolor hand cleaner hand cleaner, antibacterial hand sanitizer highlights holding spray insect repellent intimacy itch relief jewelry cleaner kids leather/fabric waterproofing legs lice shampoo lip ... hand cream semi-permanent shampoo shampoo & conditioner combo shampoo & ...

  11. Lindane

    Science.gov (United States)

    ... from getting scabies or lice. You should only use lindane if you already have these conditions, not ... acid (NegGram), norfloxacin (Noroxin), ofloxacin (Floxin), and penicillin; chloroquine sulfate; isoniazid (INH, Laniazid, Nydrazid); medications for mental ...

  12. Herpes Simplex

    Science.gov (United States)

    ... skin diseases Athlete's foot Chickenpox Cold sores Genital herpes Genital warts Head lice Herpes simplex Impetigo Molluscum contagiosum ... swollen lymph nodes (glands) in the neck (oral herpes) or groin (genital herpes) are possible. Problems urinating . People (most often ...

  13. Vth Pan American Symposium on Animal, Plant and Microbial Toxins

    National Research Council Canada - National Science Library

    Ownby, Charlotte

    1996-01-01

    .... Presentations on arthropod toxins included work on scorpion neurotoxins, K+ channel-blocking peptides, lice and wasp proteins, stinging insect venom allergens and Australian funnel-web spider toxins...

  14. Bartonella quintana in Homeless Persons

    Centers for Disease Control (CDC) Podcasts

    In this podcast, Dr. Marina Eremeeva discusses an article about Bartonella quintana in homeless populations in San Francisco. Bartonella quintana is a bacterium that is transmitted by human body lice. Findings by the article’s authors suggest that Bartonella quintana may be transmitted by head lice. This could mean that populations other than homeless populations, such as school children, might be at increased risk for Bartonella quintana.

  15. Effect of ectoparasite infestation density and life history stages on the swimming performance of Atlantic salmon Salmo salar

    Directory of Open Access Journals (Sweden)

    Samantha Bui

    2016-06-01

    Full Text Available To overcome sustainability obstacles and improve operations, the Atlantic salmon farming industry is testing novel approaches to production. Redistributing farm sites to offshore locations is one such solution; however, tolerance to high-current velocity sites must be considered, particularly if fish health status is compromised by parasites. We tested the effect of parasite density and life-history stage on the swimming performance of Atlantic salmon Salmo salar using a swim flume. Salmon with 3 different salmon lice Lepeophtheirus salmonis densities (0, 0.02 � 0.01 and 0.11 � 0.01 lice cm-2 [mean � SE] were tested across the 4 major life-history stages of lice (copepodid, chalimus, pre-adult and adult for critical swimming performance (Ucrit. Salmon Ucrit declined slightly by a mean of 0.04 to 0.10 body lengths s-1 with high parasite densities compared to uninfested and low densities, across the lice stages, while progression through the parasite life-history stages had little effect on swimming performance. Our results suggest that increasing infestation density of salmon lice incurs negative fitness consequences for farmed Atlantic salmon held in high-current velocity sites, with little difference in costs associated with attachment by different life-history stages of the lice.

  16. Primer registro para la Argentina de una especie de chicharrita, Ctenarytaina spatulata (Hemiptera: Psyllidae, en plantaciones de eucalipto en Entre Ríos New record in Argentina of a species of jumping plant-lice, Ctenarytaina spatulata (Hemiptera: Psyllidae, in eucalypt plantations from Entre Ríos

    Directory of Open Access Journals (Sweden)

    Juan P. R. Bouvet

    2008-06-01

    Full Text Available Se menciona por primera vez para Argentina la especie Ctenarytaina spatulata Taylor, asociada a plantaciones de eucalipto. Este nuevo registro se obtuvo en la Provincia de Entre Ríos, Argentina.Ctenarytaina spatulata Taylor, a species associated with eucalypt plantations, is recorded for the first time from Entre Ríos, Argentina.

  17. Comparación analítica de las capacidades físicas y mecánicas entre: mortero de arena de sílice estandarizada y mortero con sustitución de agregado de ladrillo rojo cerámico

    OpenAIRE

    Clua Novellón, Joan

    2014-01-01

    El Proyecto de Final de grado en Ciencias y tecnologías de la Edificación que aquí se presenta se basa en el análisis de las cualidades físicas y mecánicas de los materiales que forman el mortero convencional, como del propio mortero, comparados con nuevas mezclas de mortero que incluyen árido reciclado proveniente de plantas de tratamiento de materiales rechazados en la industria de la construcción, en este caso la cerámica roja. Se contrastarán morteros que contienen arena...

  18. Le lion, l’étoile y l’hélice: estudio descriptivo de la metáfora en textos técnicos franceses del ámbito de la automoción y de su traducción al español

    Directory of Open Access Journals (Sweden)

    Isabel Jiménez Gutiérrez

    2016-04-01

    Full Text Available Technical texts are usually character- ized by the use of terminology, and they are said to be clear, concise, precise and objec- tive. It is terminology which is normally considered one of the most important diffi- culties to understand specialized concepts because they are expressed by means of this terminology. Nevertheless, there are other linguistic and cognitive elements which are frequently used to express specialized con- cepts, for instance, metaphors. In this paper we aim to analyze the use of cognitive met- aphors in a corpus of French semi- specialized technical texts and to consider whether the use of these metaphors could be a problem should these metaphors have to be translated into Spanish.

  19. The AP diameter of the pelvis: a new criterion for continence in the exstrophy complex?

    International Nuclear Information System (INIS)

    Ait-Ameur, A.; Kalifa, G.; Adamsbaum, C.; Wakim, A.; Dubousset, J.

    2001-01-01

    Reconstructive surgery of bladder exstrophy remains a challenge. By using CT of the pelvis, we suggest a new pre- and post-operative investigative procedure to define the AP diameter (APD) as a predictive criterion for continence in this anomaly. Patients and methods: Three axial CT slices were selected in nine children with exstrophy who had undergone neonatal reconstructive surgery. The three levels selected were the first sacral plate, the mid acetabular plane and the superior pubic spine. We used combined slices to measure: circle APD = distance between the first sacral vertebra and the pubic symphysis. circle Pubic diastasis (PD) circle Three angles defined on the transverse plane of the first sacral vertebra - iliac wing angle, sacropubic angle and acetabular version. In exstrophy, the angles demonstrate opening of the iliac wings and the pubic ramus, and acetabular retroversion compared to controls. Comparisons between controls, continent and incontinent patients reveal that in continent patients, APD increases with growth and seems to be a predictive criterion for continence, independent of diastasis of the pubic symphysis. We believe that CT of the pelvis with measurements of the APD should be performed in all neonates with bladder exstrophy before reconstructive surgery and for better understanding of the malformation. The APD seems to be predictive and may be a major criterion for continence, independent of PD. (orig.)

  20. [Pubalgia in sportsmen].

    Science.gov (United States)

    Zeitoun, F; Frot, B; Sterin, P; Tubiana, J M

    1995-01-01

    Pubalgia is a painful syndrome of the groin which particularly affects young athletes. Although soccer players are the athletes most often affected, they are not alone. Also included in this group are fencers, tennis players and rugbymen. This ailment is associated with varying degrees of lesions of the muscles of the lower frontal abdomen, pubic symphysis and adductor muscles. The clinical diagnosis is confirmed by standard X-rays which can show radiological anomalies of the pubic symphysis in cases of microtraumatic pubic osteo-arthropathy or insertion tendinitis. Scintigraphic anomalies occur earlier than radiological anomalies and return to normal before them; thus allowing confirmation of healing even when the radiographs are still abnormal. Sonogram and MRI can be advantageous in the detection of a lesion of the abdominal muscles or adductor muscles. MRI can also detect a lesion of the pubic symphysis. The principal differential diagnosis is pubic osteitis. Treatment is medical and combines rest, analgesics and anti-inflammatories. Surgery, namely Nesovic's operation, is reserved for those forms resistant to medical treatment, and must be bilateral.

  1. In vitro pediculicidal activity of herbal shampoo base on Thai local plants against head louse (Pediculus humanus capitis De Geer).

    Science.gov (United States)

    Rassami, Watcharawit; Soonwera, Mayura

    2013-04-01

    Head lice infestation, a worldwide head infestation caused Pediculus humanus capitis De Geer, is an important public health problem in Thailand. Several chemical pediculicides have lost in efficacy due to increasing resistance of lice against insecticide. Therefore, non-toxic alternative products, such as natural products from plants, e.g. plant extract pediculicides, are needed for head lice control. The aims of this study were to evaluate the potential of pediculicidal activity of herbal shampoo base on three species of Thai local plants (Accacia concinna (Willd.) DC, Averrhoa bilimbi Linn. and Tamarindus indica Linn.) against head lice and to compare them with carbaryl shampoo (Hafif shampoo®; 0.6% w/v carbaryl) and non-treatment control in order to assess their in vitro. Doses of 0.12 and 0.25 ml/cm2 of each herbal shampoo were applied to filter paper, and ten head lice were place on the filter paper. The mortalities of head lice on the filter paper were recorded at 1, 5, 10, 30 and 60 min by sterio-microscope. All herbal shampoos at 0.25 ml/cm2 were more effective pediculicide than carbaryl shampoo with 100% mortality at 5 min. The median lethal time (LT50) of all herbal shampoos at 0.25 ml/cm2 showed no significant differences over at 0.12 ml/cm2 (Pshampoo, followed by Av. bilimbi extract shampoo and Ac. concinna extract shampoo, with LT50 valuesshampoos have high potential of pediculicide to head lice treatments for schoolchildren.

  2. CARACTERIZAÇÃO DO PONTO DE COLHEITA DE Physalis peruviana L. NA REGIÃO DE SÃO MATEUS, ES

    Directory of Open Access Journals (Sweden)

    Paloma Francisca Pancieri de Almeida

    2017-02-01

    Full Text Available Os frutos de Phisalys peruviana são climatéricas, sua colheita, normalmente se inicia quando os frutos apresentam coloração alaranjada e cálice amarelo. Objetivou-se neste trabalho identificar o estádio de maturação ideal para a colheita da P. peruviana L. na região de São Mateus, Norte do Espírito Santo. Foi avaliada massa dos frutos com e sem o cálice (g, diâmetros transversais e longitudinais (mm e sólidos solúveis totais (ºBrix (SST. O delineamento experimental foi inteiramente casualizado, com cinco repetições, contendo três frutos por repetição. Os frutos com cálice de coloração amarelo apresentaram os maiores valores de massa com e sem o cálice, o mesmo ocorreu com diâmetros laterais e diâmetros transversais, já, em relação ao conteúdo de SST foram observados em frutos com estágio de cálice amarelo-esverdeado e amarelo-amarronzado. Os frutos de Phisalys peruviana devem ser colhidos quando frutos apresentarem cálice de cor amarelo-esverdeado a amarelo-amarronzados, pois são nessas fases de coloração de cálice, que os frutos apresentam maiores acúmulos de sólidos solúveis totais e maiores massas.

  3. Determination of adrenal volume by MRI in healthy children

    DEFF Research Database (Denmark)

    Mouritsen, Annette; Johansen, Marie Lindhardt; Wohlfahrt-Veje, Christine

    2014-01-01

    , to estimate adrenal size in healthy children and to evaluate determinants of adrenal volume such as age, gender, body size, pubic hair stage and serum levels of adrenal androgens. DESIGN: Two hundred and thirty-five healthy children (116 girls and 119 boys) (age range 10.0-14.8 years) were examined by MRI......% of healthy children aged 10-15 years. Adrenal volume increased with age and Tanner stage of pubic hair. Future studies will unravel whether adrenal MRI is useful when evaluating children with adrenal diseases....... (estimate B = 0.34 ml/year, P = 0.03), age (estimate B = 0.05 ml/year, P = 0.021) and pubic hair stage (estimate B = 0.05 ml/stage, P = 0.075). No associations between adrenal size and serum levels of adrenal androgens were observed. CONCLUSION: It was possible to determine adrenal volume by MRI in only 50...

  4. Spectrum of MRI findings in clinical athletic pubalgia.

    Science.gov (United States)

    Zajick, Donald C; Zoga, Adam C; Omar, Imran M; Meyers, William C

    2008-03-01

    Athletic pubalgia is a frequently encountered syndrome for clinicians who treat active patients participating in a wide variety of athletic endeavors worldwide. Pathologies associated with this clinical scenario span anatomically from the pubic symphysis to the hip and include a myriad of poorly understood and incompletely described musculoskeletal entities, many of which are centered about the pubic symphysis and its tendinous attachments. In this article, we discuss the relevant anatomy and pathophysiology for the most frequently encountered of these disorders, using magnetic resonance (MR) images as a guide. We describe an MR imaging protocol tailored to clinical athletic pubalgia. We then review reproducible MRI patterns of pathology about the pubic symphysis, the rectus abdominis/adductor aponeurosis and the inguinal ring, as well as a group of clinically confounding entities remote from the symphysis but visible by MRI.

  5. COMPARATIVE STUDY BETWEEN THE PUBIS OF ASYMPTOMATIC ATHLETES AND NON-ATHLETES WITH MRI.

    Science.gov (United States)

    Branco, Rodrigo Castelo; da Costa Fontenelle, César Rubens; Miranda, Leandro Marques; Junior, Yonder Archanjo Ching San; Vianna, Evandro Miguelote

    2010-01-01

    To compare the magnetic resonance imaging findings from the pubis of professional soccer players without any history or clinical findings of groin pain, and from sedentary individuals, also without symptoms, and to determine the prevalence of changes compatible with pubic overload. Nineteen professional soccer players without complaints of groin pain and seventeen sedentary individuals, also asymptomatic, underwent magnetic resonance imaging of the pubis. The results from the examinations were analyzed regarding the presence of degenerative changes, boned medullary edema and tendinopathy, and the two study groups were compared. High prevalence of bone edema, tendinopathy and degenerative findings in the pubic symphysis was seen in the athletes, with statistically significant higher odds ratios and relative risk in the population studied. Professional soccer players are at a higher risk of developing changes in the pubic region, shown in magnetic resonance images, compared with sedentary individuals. These findings are not necessarily caused by groin pain, and are probably related to intense exertion.

  6. A 200K SNP chip reveals a novel Pacific salmon louse genotype linked to differential efficacy of emamectin benzoate.

    Science.gov (United States)

    Messmer, Amber M; Leong, Jong S; Rondeau, Eric B; Mueller, Anita; Despins, Cody A; Minkley, David R; Kent, Matthew P; Lien, Sigbjørn; Boyce, Brad; Morrison, Diane; Fast, Mark D; Norman, Joseph D; Danzmann, Roy G; Koop, Ben F

    2018-04-16

    Antiparasitic drugs such as emamectin benzoate (EMB) are relied upon to reduce the parasite load, particularly of the sea louse Lepeophtheirus salmonis, on farmed salmon. The decline in EMB treatment efficacy for this purpose is an important issue for salmon producers around the world, and particularly for those in the Atlantic Ocean where widespread EMB tolerance in sea lice is recognized as a significant problem. Salmon farms in the Northeast Pacific Ocean have not historically experienced the same issues with treatment efficacy, possibly due to the relatively large population of endemic salmonid hosts that serve to both redistribute surviving lice and dilute populations potentially under selection by introducing naïve lice to farms. Frequent migration of lice among farmed and wild hosts should limit the effect of farm-specific selection pressures on changes to the overall allele frequencies of sea lice in the Pacific Ocean. A previous study using microsatellites examined L. salmonis oncorhynchi from 10 Pacific locations from wild and farmed hosts and found no population structure. Recently however, a farm population of sea lice was detected where EMB bioassay exposure tolerance was abnormally elevated. In response, we have developed a Pacific louse draft genome that complements the previously-released Atlantic louse sequence. These genomes were combined with whole-genome re-sequencing data to design a highly sensitive 201,279 marker SNP array applicable for both subspecies (90,827 validated Pacific loci; 153,569 validated Atlantic loci). Notably, kmer spectrum analysis of the re-sequenced samples indicated that Pacific lice exhibit a large within-individual heterozygosity rate (average of 1 in every 72 bases) that is markedly higher than that of Atlantic individuals (1 in every 173 bases). The SNP chip was used to produce a high-density map for Atlantic sea louse linkage group 5 that was previously shown to be associated with EMB tolerance in Atlantic lice

  7. Variation in the Level of Grain Defect Light Flecks and Spots on Cattle Hides

    Science.gov (United States)

    Nafstad, O; Grønstøl, H

    2001-01-01

    The occurrence of hide damage light flecks and spots was determined on tanned hides from 28 herds during a period of 8 to 12 months. Light flecks and spots are described as small areas of grain loss up to 3 mm in diameter that are seen on dyed crust cattle leather. Damage was found on 75.8% of all hides. The neck and shoulders were the anatomical region with the highest prevalence of damage. Sixty-eight per cent of all hides had light flecks and spots in this region. The forelimbs and dewlap were the anatomical region with the second highest occurrence with a prevalence of 39.1%. This distribution corresponded to the known distribution of lice in cattle. No significant differences were observed in age, sex, prevalence of lice in the herd assessed in March or infestations with different lice species. The frequency of light flecks and spots varied significantly during the year. The frequency was highest in the late winter and early spring, decreased significantly during the summer and was lowest in the autumn. This variation supported the importance of lice in the development of light flecks and spots and suggested a relatively long healing period for the damages induced by lice. PMID:11455905

  8. Pigments, parasites and personalitiy: towards a unifying role for steroid hormones?

    Directory of Open Access Journals (Sweden)

    Silje Kittilsen

    Full Text Available A surging interest in the evolution of consistent trait correlations has inspired research on pigment patterns as a correlate of behavioural syndromes, or "animal personalities". Associations between pigmentation, physiology and health status are less investigated as potentially conserved trait clusters. In the current study, lice counts performed on farmed Atlantic salmon Salmo salar naturally infected with ectoparasitic sea lice Lepeophtheirus salmonis showed that individual fish with high incidence of black melanin-based skin spots harboured fewer female sea lice carrying egg sacs, compared to less pigmented fish. There was no significant association between pigmentation and lice at other developmental stages, suggesting that host factors associated with melanin-based pigmentation may modify ectoparasite development to a larger degree than settlement. In a subsequent laboratory experiment a strong negative correlation between skin spots and post-stress cortisol levels was revealed, with less pigmented individuals showing a more pronounced cortisol response to acute stress. The observation that lice prevalence was strongly increased on a fraction of sexually mature male salmon which occurred among the farmed fish further supports a role for steroid hormones as mediators of reduced parasite resistance. The data presented here propose steroid hormones as a proximate cause for the association between melanin-based pigmentation and parasites. Possible fundamental and applied implications are discussed.

  9. The Efficacy of Emamectin Benzoate against Infestations of Lepeophtheirus salmonis on Farmed Atlantic Salmon (Salmo salar L) in Scotland, 2002–2006

    Science.gov (United States)

    Lees, Fiona; Baillie, Mark; Gettinby, George; Revie, Crawford W.

    2008-01-01

    Background Infestations of the parasitic copepod Lepeophtheirus salmonis, commonly referred to as sea lice, represent a major challenge to commercial salmon aquaculture. Dependence on a limited number of theraputants to control such infestations has led to concerns of reduced sensitivity in some sea lice populations. This study investigates trends in the efficacy of the in-feed treatment emamectin benzoate in Scotland, the active ingredient most widely used across all salmon producing regions. Methodology/Principal Findings Study data were drawn from over 50 commercial Atlantic salmon farms on the west coast of Scotland between 2002 and 2006. An epi-informatics approach was adopted whereby available farm records, descriptive epidemiological summaries and statistical linear modelling methods were used to identify factors that significantly affect sea lice abundance following treatment with emamectin benzoate (SLICE®, Schering Plough Animal Health). The results show that although sea lice infestations are reduced following the application of emamectin benzoate, not all treatments are effective. Specifically there is evidence of variation across geographical regions and a reduction in efficacy over time. Conclusions/Significance Reduced sensitivity and potential resistance to currently available medicines are constant threats to maintaining control of sea lice populations on Atlantic salmon farms. There is a need for on-going monitoring of emamectin benzoate treatment efficacy together with reasons for any apparent reduction in performance. In addition, strategic rotation of medicines should be encouraged and empirical evidence for the benefit of such strategies more fully evaluated. PMID:18253496

  10. The efficacy of emamectin benzoate against infestations of Lepeophtheirus salmonis on farmed Atlantic salmon (Salmo salar L in Scotland, 2002-2006.

    Directory of Open Access Journals (Sweden)

    Fiona Lees

    Full Text Available BACKGROUND: Infestations of the parasitic copepod Lepeophtheirus salmonis, commonly referred to as sea lice, represent a major challenge to commercial salmon aquaculture. Dependence on a limited number of theraputants to control such infestations has led to concerns of reduced sensitivity in some sea lice populations. This study investigates trends in the efficacy of the in-feed treatment emamectin benzoate in Scotland, the active ingredient most widely used across all salmon producing regions. METHODOLOGY/PRINCIPAL FINDINGS: Study data were drawn from over 50 commercial Atlantic salmon farms on the west coast of Scotland between 2002 and 2006. An epi-informatics approach was adopted whereby available farm records, descriptive epidemiological summaries and statistical linear modelling methods were used to identify factors that significantly affect sea lice abundance following treatment with emamectin benzoate (SLICE(R, Schering Plough Animal Health. The results show that although sea lice infestations are reduced following the application of emamectin benzoate, not all treatments are effective. Specifically there is evidence of variation across geographical regions and a reduction in efficacy over time. CONCLUSIONS/SIGNIFICANCE: Reduced sensitivity and potential resistance to currently available medicines are constant threats to maintaining control of sea lice populations on Atlantic salmon farms. There is a need for on-going monitoring of emamectin benzoate treatment efficacy together with reasons for any apparent reduction in performance. In addition, strategic rotation of medicines should be encouraged and empirical evidence for the benefit of such strategies more fully evaluated.

  11. Immunostimulation of Salmo salar L., and its effect on Lepeophtheirus salmonis (Krøyer) P-glycoprotein mRNA expression following subsequent emamectin benzoate exposure.

    Science.gov (United States)

    Igboeli, O O; Purcell, S L; Wotton, H; Poley, J; Burka, J F; Fast, M D

    2013-03-01

    Control of sea lice, Lepeophtheirus salmonis, on farmed Atlantic salmon, Salmo salar, relies heavily on chemotherapeutants. However, reduced efficacy of many treatments and need for integrated sea lice management plans require innovative strategies. Resistance to emamectin benzoate (EMB), a major sea lice parasiticide, has been linked with P-glycoprotein (P-gp) expression. We hypothesized that host immunostimulation would complement EMB treatment outcome. Lepeophtheirus salmonis-infected Atlantic salmon were fed immunostimulatory or control feeds. Sea lice were collected for 24-h EMB bioassays 1 and 2 weeks prior to commencement of EMB treatment of the fish. Two weeks after cessation of immunostimulant-treated feed, EMB was administered at 150 μg kg(-1) fish biomass for 7 days. The bioassay revealed stage, gender and immunostimulant-related differences in EMB EC(50) . Sea lice attached to salmon with a history of immunostimulation exhibited significantly greater survival than those on control feeds, despite similar levels of EMB in host tissues. Lepeophtheirus salmonis from salmon with a history of immunostimulation also exhibited higher P-gp mRNA expression as well as greater survivability compared to controls. Administration of immunostimulants prior to EMB treatment caused increased expression of P-gp mRNA which could have consequently caused decreased efficacy of the parasiticide. © 2013 Blackwell Publishing Ltd.

  12. The efficacy of emamectin benzoate against infestations of Lepeophtheirus salmonis on farmed Atlantic salmon (Salmo salar L) in Scotland, 2002-2006.

    Science.gov (United States)

    Lees, Fiona; Baillie, Mark; Gettinby, George; Revie, Crawford W

    2008-02-06

    Infestations of the parasitic copepod Lepeophtheirus salmonis, commonly referred to as sea lice, represent a major challenge to commercial salmon aquaculture. Dependence on a limited number of theraputants to control such infestations has led to concerns of reduced sensitivity in some sea lice populations. This study investigates trends in the efficacy of the in-feed treatment emamectin benzoate in Scotland, the active ingredient most widely used across all salmon producing regions. Study data were drawn from over 50 commercial Atlantic salmon farms on the west coast of Scotland between 2002 and 2006. An epi-informatics approach was adopted whereby available farm records, descriptive epidemiological summaries and statistical linear modelling methods were used to identify factors that significantly affect sea lice abundance following treatment with emamectin benzoate (SLICE(R), Schering Plough Animal Health). The results show that although sea lice infestations are reduced following the application of emamectin benzoate, not all treatments are effective. Specifically there is evidence of variation across geographical regions and a reduction in efficacy over time. Reduced sensitivity and potential resistance to currently available medicines are constant threats to maintaining control of sea lice populations on Atlantic salmon farms. There is a need for on-going monitoring of emamectin benzoate treatment efficacy together with reasons for any apparent reduction in performance. In addition, strategic rotation of medicines should be encouraged and empirical evidence for the benefit of such strategies more fully evaluated.

  13. The prevalence of Pediculus humanus capitis and the coexistence of intestinal parasites in young children in boarding schools in Sivas, Turkey.

    Science.gov (United States)

    Değerli, Serpil; Malatyali, Erdoğan; Çeliksöz, Ali; Özçelik, Semra; Mumcuoğlu, Kosta Y

    2012-01-01

    The aim of this study was to investigate the prevalence of Pediculus humanus capitis and the coexistence of intestinal parasites in boarding primary schools in Sivas, Turkey. Seven hundred seventy-two students (350 [45.3%] girls, 422 [54.7%] boys) were evaluated with combing for the presence of head lice, collection of fecal samples, and examination of the perianal region for intestinal parasites using the cellophane tape method. The overall infestation rate for head lice was 6% (n=46). Nine children had evidence of nits only (1.2%), whereas living lice and nits or eggs were found in 37 children (4.8%). Girls were significantly more commonly infested (12.9%) than boys (0.2%). Of the parameters evaluated, socioeconomic level, number of rooms per family, and size and weight of the children were statistically significantly different between the children with and without lice. Although the infestation rate of children with intestinal parasites was higher in the head louse-infested group (23.9%) than in the group of children without lice (17.6%), the differences were not statistically significant. © 2011 Wiley Periodicals, Inc.

  14. Notification, an Important Neglected Essential Education for Children in Kindergartens and Primary Schools (Education about Parasitic Infections in Kindergartens

    Directory of Open Access Journals (Sweden)

    Emad Ahmadiara

    2017-09-01

    Full Text Available One of the most important threats to global public health, especially in developing countries is parasitic infections. These infections are very common in children and young people especially those who kept in kindergarten and primary schools. Because of the high population density and sometimes by the lack of adequate hygiene, these places are prone to parasitic infections. Infestation causes by ectoparasites like pediculosis, water-borne protozoan infections like giardiasis and the last but not less important, helminth infection like as Oxyuris are a permanent threat for children in this places.

  15. Method of surgical renewal of continuity of pelvic ring in children with extrophy of bladder

    Directory of Open Access Journals (Sweden)

    O. V. Shchekin

    2013-04-01

    Full Text Available Section of back and interbone sacroiliac ligaments from both sides, at extrophy of bladder, instead of osteotomу of iliac bones allows easily to liquidate large diastasis between pubic bones, to carry out them osteosintez, to normalize the location of hip joints and enables to carry out plastic of bladder. Thus there is no bleeding, as ligament have not blood vessels, and there is no cutting or damage of ligatures in the place of osteosinthesis of pubic bones. 3 children aged from 3 weeks to 1 year are operated according to this method. Complications were not present.

  16. Endoscopic Rectus Abdominis and Prepubic Aponeurosis Repairs for Treatment of Athletic Pubalgia.

    Science.gov (United States)

    Matsuda, Dean K; Matsuda, Nicole A; Head, Rachel; Tivorsak, Tanya

    2017-02-01

    Review of the English orthopaedic literature reveals no prior report of endoscopic repair of rectus abdominis tears and/or prepubic aponeurosis detachment. This technical report describes endoscopic reattachment of an avulsed prepubic aponeurosis and endoscopic repair of a vertical rectus abdominis tear immediately after endoscopic pubic symphysectomy for coexistent recalcitrant osteitis pubis as a single-stage outpatient surgery. Endoscopic rectus abdominis repair and prepubic aponeurosis repair are feasible surgeries that complement endoscopic pubic symphysectomy for patients with concurrent osteitis pubis and expand the less invasive options for patients with athletic pubalgia.

  17. Hormigones de alta resistencia con nano-adiciones y fibras de acero

    OpenAIRE

    Alizo Mirabal, Manuel Arturo

    2015-01-01

    El presente Trabajo Fin de Máster consistió en determinar la influencia que pueden poseer las nano-adiciones de Sílice y Alúmina y fibras de acero en un Hormigón de Alta Resistencia. Partiendo de una dosificación de Hormigón de Alta Resistencia conocida, que contenía humo de Sílice (10%) y fibras de poliolefina (3kg/m3), se les procedió a sustituir por la incorporación de nano-adiciones de Sílice y Alúmina (7% y 3% respectivamente) y añadiendo fibras de acero en lugar de poliolefina. En el pr...

  18. Quantitative risk assessment of salmon louse-induced mortality of seaward-migrating post-smolt Atlantic salmon

    Directory of Open Access Journals (Sweden)

    Anja Bråthen Kristoffersen

    2018-06-01

    Full Text Available The Norwegian government recently implemented a new management system to regulate salmon farming in Norway, aiming to promote environmentally sustainable growth in the aquaculture industry. The Norwegian coast has been divided into 13 production zones and the volume of salmonid production in the zones will be regulated based on salmon lice effects on wild salmonids. Here we present a model for assessing salmon louse-induced mortality of seaward-migrating post-smolts of Atlantic salmon. The model quantifies expected salmon lice infestations and louse-induced mortality of migrating post-smolt salmon from 401 salmon rivers draining into Norwegian coastal waters. It is assumed that migrating post-smolts follow the shortest path from river outlets to the high seas, at constant progression rates. During this migration, fish are infested by salmon lice of farm origin according to an empirical infestation model. Furthermore, louse-induced mortality is estimated from the estimated louse infestations. Rivers draining into production zones on the West Coast of Norway were at the highest risk of adverse lice effects. In comparison, rivers draining into northerly production zones, along with the southernmost production zone, were at lower risk. After adjusting for standing stock biomass, estimates of louse-egg output varied by factors of up to 8 between production zones. Correlation between biomass adjusted output of louse infestation and densities of farmed salmon in the production zones suggests that a large-scale density-dependent host-parasite effect is a major driver of louse infestation rates and parasite-induced mortality. The estimates are sensitive to many of the processes in the chain of events in the model. Nevertheless, we argue that the model is suited to assess spatial and temporal risks associated with farm-origin salmon lice. Keywords: Density dependent, Sea lice, Transmission, Farmed salmon, Migration pathway, Migration time

  19. Pediculicidal effect of herbal shampoo against Pediculus humanus capitis in vitro.

    Science.gov (United States)

    Watcharawit, R; Soonwera, M

    2013-06-01

    Human head lice infestation is an important public health problem in Thailand. Lice resistance is increasing, chemical pediculicides have lost their efficacy and thus alternative products such as herbal shampoos have been proposed to treat lice infestation. The present study investigated the efficacy of twenty nine herbal shampoos based on zinbiberaceae plants, piperaceae plants and native plants against human head lice and compared them with malathion shampoo (A-lices shampoo®: 1% w/v malathion) and commercial shampoo (BabiMild Natural'N Mild®) in order to assess their in vitro efficacy. All herbal shampoo were more effective than commercial shampoo with 100% mortality at 60 seconds and LT50 values ranged from 11.30 to 31.97 seconds, meanwhile, commercial shampoo caused 14.0-15.0% mortality and LT50 values ranged from 83.96 to 87.43 seconds. The nine herbal shampoos from Zingiber cassumunar, Piper betle, Piper ribesioides, Averrhoa bilimbi, Clitoria ternatea, Plectranthus amboincus, Myristica fragrans, Tacca chantrieri and Zanthoxylum limonella were more effective pediculicide than malathion shampoo with 100% mortality at 30 seconds and LT50 values ranged from 11.30-13.58 seconds, on the other hand malathion shampoo showed LT50 values ranging from 12.39 to 13.67 seconds. LT50 values indicated the order of pediculicidal activity in the herbal shampoos as Z. cassumunar shampoo > P. betle shampoo > Za. limonella shampoo > Av. bilimbi shampoo > P. ribesioides shampoo > My. fragrans shampoo > T. chantrieri shampoo > Pl. amboincus shampoo. Our data showed that eight of the twenty nine herbal shampoos in this study were of high potential pediculicide to human head lice treatments for Thai children.

  20. Uncovering deep mysteries: the underwater life of an amphibious louse.

    Science.gov (United States)

    Leonardi, Maria Soledad; Aznar, F Javier; Crespo, Enrique A; Lazzari, Claudio R

    2014-12-01

    Despite the incredible success of insects in colonizing almost every habitat, they remain virtually absent in one major environment--the open sea. A variety of hypotheses have been raised to explain why just a few insect species are present in the ocean, but none of them appears to be fully explanatory. Lice belonging to the family Echinophthiriidae are ectoparasites on different species of pinnipeds and river otters, i.e. they have amphibious hosts, who regularly perform long excursions into the open sea reaching depths of hundreds of meters (thousands of feets). Consequently, lice must be able to support not only changes in their surrounding media, but also extreme variations in hydrostatic pressure as well as breathing in a low oxygen atmosphere. In order to shed some light on the way lice can survive during the diving excursions of their hosts, we have performed a series of experiments to test the survival capability of different instars of Antarctophthirus microchir (Phthiraptera: Anoplura) from South American sea lions Otaria flavescens, when submerged into seawater. These experiments were aimed at analyzing: (a) immersion tolerance along the louse life; (b) lice's ability to obtain oxygen from seawater; (c) physiological responses and mechanisms involved in survival underwater. Our experiments showed that the forms present in non-diving pups--i.e. eggs and first-instar nymphs--were unable to tolerate immersion in water, while following instars and adults, all usually found in diving hosts, supported it very well. Furthermore, as long as the level of oxygen dissolved in water was higher, the lice survival capability underwater increased, and the recovery period after returning to air declined. These results are discussed in relation to host ecology, host exploitation and lice functional morphology. Copyright © 2014 Elsevier Ltd. All rights reserved.

  1. Hemocytes from Pediculus humanus humanus are hosts for human bacterial pathogens.

    Directory of Open Access Journals (Sweden)

    Eric eGhigo

    2015-01-01

    Full Text Available Pediculus humanus humanus is an human ectoparasite which represents a serious public health threat because it is vector for pathogenic bacteria. It is important to understand and identify where bacteria reside in human body lice to define new strategies to counterstroke the capacity of vectorization of the bacterial pathogens by body lice. It is known that phagocytes from vertebrates can be hosts or reservoirs for several microbes. Therefore, we wondered if Pediculus humanus humanus phagocytes could hide pathogens. In this study, we characterized the phagocytes from Pediculus humanus humanus and evaluated their contribution as hosts for human pathogens such as Rickettsia prowazekii, Bartonella quintana and Acinetobacter baumannii.

  2. Bartonella quintana in Homeless Persons

    Centers for Disease Control (CDC) Podcasts

    2009-06-30

    In this podcast, Dr. Marina Eremeeva discusses an article about Bartonella quintana in homeless populations in San Francisco. Bartonella quintana is a bacterium that is transmitted by human body lice. Findings by the article’s authors suggest that Bartonella quintana may be transmitted by head lice. This could mean that populations other than homeless populations, such as school children, might be at increased risk for Bartonella quintana.  Created: 6/30/2009 by Emerging Infectious Diseases.   Date Released: 6/30/2009.

  3. Bovicola ovis and Melophagus ovinus: Spatial distribution on Menz breed Sheep

    OpenAIRE

    Mersha Chanie

    2011-01-01

    This study was done from September 2006 to May 2007. A total of 105 Menz breed sheep from Yemenze Gera Midir district in the Amhara National Regional State, Ethiopia. The spatial distribution of sheep keds (Melophagus ovinus) and chewing lice (Bovicola ovis) on Menz breed sheep were examined which were naturally infested. The densities if sheep keds and lice were determined through counting after parting of the fleece/wool at five (5) points on a length of 10 cm areas of six (6) different reg...

  4. Investigación de las causas que con llevan a la creación de rajaduras y/o fisuras en las cámaras de combustión de los motores AI-20D serie 5 de los aviones turbo hélice antonov de la M.G.P. y desarrollo del proceso de su soldadura por microplasma

    OpenAIRE

    Angulo Rebaza, Cesar Adolfo; Angulo Rebaza, Cesar Adolfo

    2000-01-01

    La seguridad de los vuelos con respecto al material aeronáutico está condicionado por la confiabilidad de los principales conjuntos, y accesorios, incluyendo las cámaras de combustión de los motores aeronáuticos. Para resolver las tareas propuestas se ha efectuado investigaciones del proceso de desgastamiento del material de la cámara de combustión del MTH AI-20D SERIE 5 en el proceso de operación en las condiciones geográficas del Perú La construcción de la cámara de combustión (Fig. 1...

  5. Método fisicoquímico para el control de Pediculus humanus capitis

    Directory of Open Access Journals (Sweden)

    C. Corredor

    1994-03-01

    Full Text Available La pediculosis humana causada por el ectoparásito Pediculus humanus capitis, ha sido exitosamente controlada utilizando como insecticida los alcoholes presentes en las bebidas etílicas (aguardiente. La acción ietal de los alcoholes de bebida sobre el parásito es atribuida al efecto neurotóxico, así como a su acción desnaturalizante de biomoléculas celulares. El tratamiento se hace cubriendo el cabello y todas las áreas del cuero cabelludo con una bolsa plástica desechable, fijada con cinta adhesiva, previo remojo con 15-50 ml de alcohol de bebida, de todo el cabello. La atmósfera circundante del parásito queda saturada de vapores etílicos, de agua y CO2, por un período de 30-60 minutos, lo cual es letal para huevos, larvas y adultos del insecto parásito. Se dan normas cautelosas para garantizar la acción insecticida de los alcoholes de bebida en el control de la pediculosis.

  6. Primary intrapelvic hemangiosarcoma in a dog.

    Science.gov (United States)

    Yoo, Saejong; Kim, Jiyong; Myung, Hyun-Wook; Woo, Suhan; Chung, Dai-Jung; Lee, A-Jin; Kim, Han-Jun; DO, Sun-Hee; Kim, Hwi-Yool

    2017-01-24

    A 12-year-old, spayed female Schnauzer presented with constipation. A mass was observed in the pelvic cavity, and metastasis was not identified. Mass resection was performed through celiotomy with pubic osteotomy, and hemangiosarcoma was diagnosed. At 10 weeks post-operatively, the patient died of multiple metastasis. Primary intrapelvic hemangiosarcoma is rare in dogs.

  7. Haemodynamically Unstable Pelvic Fractures

    Science.gov (United States)

    2009-01-01

    through the pubic symphysis, and posteriorlywith the sacrum forming the sacroiliac (SI) joints (Fig. 1). The SI joints are the strongest in the body...Gardner MJ, Kendoff D, Ostermeier S, et al. Sacroiliac joint compression using an anterior pelvic compressor: a mechanical study in synthetic bone. J

  8. Pubertal development timing in urban Chinese boys.

    Science.gov (United States)

    Ma, H-M; Chen, S-K; Chen, R-M; Zhu, C; Xiong, F; Li, T; Wang, W; Liu, G-L; Luo, X-P; Liu, L; Du, M-L

    2011-10-01

    We describe current pubertal development in healthy urban Chinese boys. A cross-sectional study of the pubertal development of 18,807 urban Chinese boys aged from 3.50 to 18.49years was conducted between 2003 and 2005. Testicular volume was evaluated with a Prader orchidometer. Pubic hair development was assessed according to the Tanner method. Data on spermarche were collected using the status quo method. Probit analysis was used to calculate the median age and 95% CI at different stages of testicular development, pubic hair development and spermarche. By age 9, 12.99% of the boys had a testicular volume of 4mL or greater. The median age of onset of puberty defined as the age at attainment of testicular volume of 4mL or greater was 10.55 (95% CI 10.27-10.79) years. The median age for onset of pubic hair development (PH(2) ) and spermarche was 12.78 (95%CI 12.67-12.89) years and 14.05 (95%CI 13.80-14.32) years, respectively. Pubertal onset in urban Chinese boys is earlier than currently used clinical norms but their pubic hair development occurs relatively late in comparison with the reported data from numerous other countries. There is also evidence of a secular trend towards an earlier age of spermarche since 1979 in Chinese urban boys. © 2011 The Authors. International Journal of Andrology © 2011 European Academy of Andrology.

  9. Rhabdomyoma Mimicking Uterine Fibroid:

    African Journals Online (AJOL)

    O&G Dept

    the pubic symphysis(16 weeks gestation). It was fixed, firm to hard in consistency and non tender. A working diagnosis ... Histological report showed soft tissue tumor, composed of stratified cells having moderate to abundant ... represents a genetic variant of striated muscle development. Drugs or environmental factors have.

  10. Effects of Trade Restrictions on Imports of Steel.

    Science.gov (United States)

    1980-11-01

    unfortunate that the report has little or demand for steel eqialion Yet results using the noingto say about steel esports . which have been sgnitiant...Sprull. Nancy. (Repinted from Economic Inquiry. Vol. XIV. No 94th annual convention of the American Psycho "Pubic Drug Treatment and Addict Crim," Jose 1

  11. Military Review, July 1992. Volume 72, Number 7

    Science.gov (United States)

    1992-07-01

    Williamrs Assistant Secretary of Defense tor Pubic 47 Alexander Hamilton. The Federalist Papers (New York: NAIL Penguin Inc. Affairs before the...REVIEW THE OMG /~’TA Im Figurer 141 h a t fta 0 wor m TE (~YV7 Figur 2A Army can continue defending, withdraw or "Missions for the army plan include the

  12. Perineal Ectopic Testis in an Adult

    African Journals Online (AJOL)

    in an ectopic site outside the scrotum; such as the perineum, pubic region, dorsum of the penis, femoral region, anterior abdominal wall and the contralateral scrotum. Management is orchidopexy through an inguinal crease incision as the length of the spermatic cord is normal. We report a 26 year old man with a left perineal ...

  13. Leveraging Quality Charters

    Science.gov (United States)

    Young, Caprice

    2012-01-01

    Charter public schools serve a variety of roles in education reform: innovation labs, havens from failing traditional schools; and competitors for pubic resources. Education leaders have the opportunity to use high quality charter schooling to innovate not only in developing transformative schools but, more importantly, in creating great public…

  14. Anomalies of the penis and scrotum in adults : A multidisciplinary approach

    NARCIS (Netherlands)

    Nugteren, Helena Madelinde

    2016-01-01

    In this thesis the diagnosis and treatment of abnormalities of penile and scrotal anatomy have been reported. The most widely used technique for (optical) lengthening is the cleaving of the ligament between the pubic bone and the penis. The operated men who had already achieved a penis-length of 7.5

  15. New reference charts for testicular volume in Dutch children and adolescents allow the calculation of standard deviation scores.

    Science.gov (United States)

    Joustra, Sjoerd D; van der Plas, Evelyn M; Goede, Joery; Oostdijk, Wilma; Delemarre-van de Waal, Henriette A; Hack, Wilfried W M; van Buuren, Stef; Wit, Jan M

    2015-06-01

    Accurate calculations of testicular volume standard deviation (SD) scores are not currently available. We constructed LMS-smoothed age-reference charts for testicular volume in healthy boys. The LMS method was used to calculate reference data, based on testicular volumes from ultrasonography and Prader orchidometer of 769 healthy Dutch boys aged 6 months to 19 years. We also explored the association between testicular growth and pubic hair development, and data were compared to orchidometric testicular volumes from the 1997 Dutch nationwide growth study. The LMS-smoothed reference charts showed that no revision of the definition of normal onset of male puberty - from nine to 14 years of age - was warranted. In healthy boys, the pubic hair stage SD scores corresponded with testicular volume SD scores (r = 0.394). However, testes were relatively small for pubic hair stage in Klinefelter's syndrome and relatively large in immunoglobulin superfamily member 1 deficiency syndrome. The age-corrected SD scores for testicular volume will aid in the diagnosis and follow-up of abnormalities in the timing and progression of male puberty and in research evaluations. The SD scores can be compared with pubic hair SD scores to identify discrepancies between cell functions that result in relative microorchidism or macroorchidism. ©2015 Foundation Acta Paediatrica. Published by John Wiley & Sons Ltd.

  16. Vesicovaginal fistula presenting as urogenital prolapse

    African Journals Online (AJOL)

    infection of the affected area, there is sloughing‑off of dead tissues resulting to the ... Theoretically, estrogen deficiency together with exposure of the vaginal ... injuries involving fractures of the anterior and lateral aspects of the right pubic bone ...

  17. Pubertal Onset in Boys and Girls Is Influenced by Pubertal Timing of Both Parents

    DEFF Research Database (Denmark)

    Wohlfahrt-Veje, Christine; Mouritsen, Annette; Hagen, Casper P

    2016-01-01

    children in a longitudinal cohort study. Information on parental timing of puberty (earlier, comparable to, or later compared to peers) and menarche age was retrieved from questionnaires. PARTICIPANTS: A total of 672 girls and 846 boys. MAIN OUTCOME MEASURES: Age at onset of pubic hair (PH2+), breasts (B2...

  18. Puberty

    Science.gov (United States)

    ... or a period) usually happens last. In boys: Puberty usually begins with the testicles and penis getting bigger. Then hair grows in the pubic area and armpits. Muscles grow, the voice deepens, and facial hair develops as puberty continues. Both boys and girls may get acne. ...

  19. 109 Feasibility of Open Simple Prostatectomy with Early Vascular ...

    African Journals Online (AJOL)

    user

    2006-12-02

    Dec 2, 2006 ... (Schistosomiasis, prostatic disease, urethral strictures, complex congenital abnormalities, vesico-vaginal ... Sutures were placed at the posterior bladder neck and superior edge of prostatic capsule (Figure 1). Allis ... the dislodging of the balloon in the urethra. The bladder was closed and retro-pubic drain ...

  20. Pelvic ventral hernia repair in a pygopagus conjoint twin

    African Journals Online (AJOL)

    . Pubic symphysis diastasis and weak musculature was noted. The fascia was found to be retracted laterally on both sides. After mobilization of the fascia, a 10 Â 15cm nonabsorbable mesh was sutured to the fascia laterally to cover the hernial ...

  1. Students' Demand for Smartphones: Structural Relationships of Product Features, Brand Name, Product Price and Social Infuence

    Science.gov (United States)

    Suki, Norazah Mohd

    2013-01-01

    Purpose: The study aims to examine structural relationships of product features, brand name, product price and social influence with demand for Smartphones among Malaysian students'. Design/methodology/approach: Data collected from 320 valid pre-screened university students studying at the pubic higher learning institution in Federal Territory of…

  2. Case 24: Stress Fracture of the Tibia

    Science.gov (United States)

    2008-03-01

    Disease, Osteomalacia, Osteogenesis Imperfecta , pelvic irradiation, corticosteroid therapy, Rhematoid Arthritis. Patients present with a history of...sacrum, pubic ramus, calcaneous, navicular, or metatarsal bones. They usually results from a change in exercise status (ie: increased running...new exercise program. Often, patients complain of nocturnal pain that makes sleeping difficult. On physical exam the overlying skin is often normal

  3. Adult Education for Social and Environmental Change in Contemporary Public Art Galleries and Museums in Canada, Scotland and England

    Science.gov (United States)

    Clover, Darlene E.

    2015-01-01

    Historically, pubic art galleries and museums have a well-deserved reputation for elitism, colonialism and exclusion and they are, therefore, frequently omitted from the discourse of adult education. However, the escalating social, cultural and ecological problems of this new century have placed pressure on these public institutions to change and…

  4. It Gets Crowded with an Elephant and an Ape in the Room: Teaching about Female and Male Cognitive Differences and Similarities

    Science.gov (United States)

    Halpern, Diane F.

    2014-01-01

    It is important to understand the many controversies about cognitive sex differences because beliefs about these differences are often used to justify pubic policies and individual actions. As teachers of psychology, we need to provide a safe environment where students can think and argue about why, how, and how much females and males are similar…

  5. Birth Plans

    Science.gov (United States)

    ... sometimes, practitioners will give women the option of getting some help to move things along, or giving labor a little more time to progress on its own. shaving the pubic area. Once routine, shaving is no longer done unless a woman requests it. Other procedures that ...

  6. Premature pubarche is niet altijd onschuldig

    NARCIS (Netherlands)

    Backes, Manouk; Zwaveling-Soonawala, Nitash; Kamp, Gerdine A.

    2012-01-01

    Premature pubarche is defined as growth of pubic hair before the age of 8 years in girls and 9 years in boys. In most cases, it is caused by premature adrenarche, which is a premature increased synthesis of androgens in the adrenal gland and is considered to be relatively harmless. Premature

  7. Case report

    African Journals Online (AJOL)

    ebutamanya

    2015-05-25

    May 25, 2015 ... suggestive of avascular necrosis of the femoral head. Discussion. Anterior dislocations of the hip are divided into two types according to the position of the femoral head, pubic or superior (type 1) and obturator or inferior (type 2) [1, 2]. Obturator dislocations of the hip are uncommon injury, occurring in.

  8. Role of bulking agents in bladder exstrophyepispadias complexes ...

    African Journals Online (AJOL)

    Background: Role of pelvic osteotomy in surgical management of bladder exstrophy is controversial But pelvic rim closure importantly. Bulking agents have been used for perineal and pelvic dysfunction in adults. In this study, bladder extrophy repair was performed without pubic closure And bulking agent injections were ...

  9. Athletic pubalgia and "sports hernia": optimal MR imaging technique and findings.

    Science.gov (United States)

    Omar, Imran M; Zoga, Adam C; Kavanagh, Eoin C; Koulouris, George; Bergin, Diane; Gopez, Angela G; Morrison, William B; Meyers, William C

    2008-01-01

    Groin injuries are common in athletes who participate in sports that require twisting at the waist, sudden and sharp changes in direction, and side-to-side ambulation. Such injuries frequently lead to debilitating pain and lost playing time, and they may be difficult to diagnose. Diagnostic confusion often arises from the complex anatomy and biomechanics of the pubic symphysis region, the large number of potential sources of groin pain, and the similarity of symptoms in athletes with different types or sites of injury. Many athletes with a diagnosis of "sports hernia" or "athletic pubalgia" have a spectrum of related pathologic conditions resulting from musculotendinous injuries and subsequent instability of the pubic symphysis without any finding of inguinal hernia at physical examination. The actual causal mechanisms of athletic pubalgia are poorly understood, and imaging studies have been deemed inadequate or unhelpful for clarification. However, a large-field-of-view magnetic resonance (MR) imaging survey of the pelvis, combined with high-resolution MR imaging of the pubic symphysis, is an excellent means of assessing various causes of athletic pubalgia, providing information about the location of injury, and delineating the severity of disease. Familiarity with the pubic anatomy and with MR imaging findings in athletic pubalgia and in other confounding causes of groin pain allows accurate imaging-based diagnoses and helps in planning treatment that targets specific pathologic conditions. (c) RSNA, 2008.

  10. [Imaging features of pubalgia].

    Science.gov (United States)

    Sans, N; Lhoste-Trouilloud, A; Sethom, S; Camara, P-Y; Jirari, M; Ponsot, A; Railhac, J-J

    2011-06-01

    Pubalgia is a generic term used to describe groin pain due to a multitude of different etiologies such as skeletal (microtraumatic pubic symphysis arthropathy), muscular (adductor or rectus abdominis disorders), or abdominal wall (inguinal hernia) disorders. Diagnosis relies mainly on MRI for musculoskeletal disorders and ultrasound for abdominal wall disorders. Copyright © 2011. Published by Elsevier Masson SAS.

  11. Sonographic evaluation of athletic pubalgia.

    Science.gov (United States)

    Morley, Nicholas; Grant, Thomas; Blount, Kevin; Omar, Imran

    2016-05-01

    Athletic pubalgia, or "sports hernia", represents a constellation of pathologic conditions occurring at and around the pubic symphysis. These injuries are primarily seen in athletes or those involved in athletic activity. In this article, we review the sonographic appearance of the relevant complex anatomy, scanning technique for ultrasound evaluation of athletic pubalgia, and the sonographic appearances of associated pathologic conditions.

  12. HEMOCHROMATOSIS

    Directory of Open Access Journals (Sweden)

    Frijo jose

    2011-11-01

    Full Text Available 36 year old male with no history of blood transfusion in the past, presented with features of left heart failure and presyncope. He had sparse facial, axillary and pubic hair, hyperpigmentation of skin, palms, palate and history of impotence.

  13. AFJU OFC 18(3).indd

    African Journals Online (AJOL)

    imac-3

    Loss of pubic and axillary hair, reduced shaving. Less specific .... hemoglobin, lipid profile, liver function tests, vitamin D3 and serum calcium. Dosage ... [14] Isidori AM, Giannetta E, Gianfrilli D, Greco EA, Bonifacio V, Aversa. A, et al. Effects of ...

  14. Anglo-Australian Telescope 1982/83

    International Nuclear Information System (INIS)

    1983-01-01

    Brief details of research on galaxies, QSOs, stars, SNRs and interstellar materials are noted. Some specific research projects are: gas motions in barred galaxies, a collapsing supercluster, an infrared nucleus in M104, asymmetric supernova explosion, NGC 4696, and supernovae and the liberation of dust. A list of pubications is included

  15. Anatomy of the pubovisceral muscle origin: Macroscopic and microscopic findings within the injury zone.

    Science.gov (United States)

    Kim, Jinyong; Betschart, Cornelia; Ramanah, Rajeev; Ashton-Miller, James A; DeLancey, John O L

    2015-11-01

    The levator ani muscle (LA) injury associated with vaginal birth occurs in a characteristic site of injury on the inner surface of the pubic bone to the pubovisceral portion of the levator ani muscle's origin. This study investigated the gross and microscopic anatomy of the pubic origin of the LA in this region. Pubic origin of the levator ani muscle was examined in situ then harvested from nine female cadavers (35-98 years). A combination of targeted feature sampling and sequential sampling was used where each specimen was cut sequentially in approximately 5 mm thick slices apart in the area of known LA injury. Histological sections were stained with Masson's trichrome. The pubovisceral origin is transparent and thin as it attaches tangentially to the pubic periosteum, with its morphology changing from medial to lateral regions. Medially, fibers of the thick muscle belly coalesce toward multiple narrow points of bony attachment for individual fascicles. In the central portion there is an aponeurosis and the distance between muscle and periosteum is wider (∼3 mm) than in the medial region. Laterally, the LA fibers attach to the levator arch where the transition from pubovisceral muscle to the iliococcygeal muscle occurs. The morphology of the levator ani origin varies from the medial to lateral margin. The medial origin is a rather direct attachment of the muscle, while lateral origin is made through the levator arch. © 2014 Wiley Periodicals, Inc.

  16. 7 CFR 611.22 - Availability of satellite imagery.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Availability of satellite imagery. 611.22 Section 611... § 611.22 Availability of satellite imagery. Cloud-free maps of the United States based on imagery received from a satellite are prepared and released to the pubic by NRCS. The maps offer the first image of...

  17. Paris Convention on third party liability in the field of nuclear energy and Brussels Convention Supplementary to the Paris Convention

    International Nuclear Information System (INIS)

    1989-01-01

    This new bilingual (English and French) edition of the 1960 Paris Convention and 1963 Brussels Supplementary Convention incorporates the provisions of the Protocols which amended each of them on two occasions, in 1964 and 1982. The Expose des motifs to the Paris Convention, as revised in 1982 is also included in this pubication. (NEA) [fr

  18. Penile enlargement surgery.

    Science.gov (United States)

    Alter, G J

    1998-06-01

    Aesthetic surgery to improve the appearance of the penis, scrotum, and pubic region has successfully evolved. Penile lengthening is performed by releasing the suspensory ligament of the penis followed by use of penile weights. Girth is increased by wrapping a dermal-fat graft around the penile circumference. The choice of surgery is determined by the patient's anatomy and desires.

  19. Pubertal Development and Prepubertal Height and Weight Jointly Predict Young Adult Height and Body Mass Index in a Prospective Study in South Africa.

    Science.gov (United States)

    Stein, Aryeh D; Lundeen, Elizabeth A; Martorell, Reynaldo; Suchdev, Parminder S; Mehta, Neil K; Richter, Linda M; Norris, Shane A

    2016-07-01

    Height and adiposity track over childhood, but few studies, to our knowledge, have longitudinally examined the mediating relation of the timing and progression of puberty. We assessed interrelations between prepubertal height and body mass index, the progression through puberty, and young adult height and adiposity. We analyzed data from the Birth to Twenty Plus study (females, n = 823; males, n = 765). Serial measures of anthropometry and pubertal development were obtained between ages 9 and 16 y. We used latent class growth analysis to categorize pubertal development with respect to pubic hair (females and males), breasts (females), and genitalia (males) development. Adult height and weight were obtained at ages 18 to 20 y. Among females, higher latent class (earlier initiation and faster progression through puberty) was associated with an increased risk of obesity [pubic hair class 3 compared with class 1: RR, 3.41 (95% CI: 1.57, 7.44)] and inconsistent associations with height. Among males, higher latent class was associated with increased adult height [pubic hair development class 3 compared with class 1: 2.43 cm (95% CI: 0.88, 4.00)] and increased risk of overweight/obesity [pubic hair development class 3 compared with class 1: OR, 3.44 (95% CI: 1.44, 8.20)]. In females, the association with adult height became inverse after adjusting for prepubertal height [pubic hair development class 3 compared with class 1: females, -1.31 cm (95% CI: -2.32, -0.31)]; in males, the association with height was attenuated with this adjustment [-0.56 cm (95% CI: -1.63, 0.52)]. Associations with adiposity were attenuated after adjusting for prepubertal adiposity. Progression through puberty modifies the relation between prepubertal and adult anthropometry. Screening for early or rapid progression of puberty might identify children at an increased risk of becoming overweight or obese adults.

  20. E valuat tion of an extrac ntibact cts of C terial a Coleus activity s ...

    African Journals Online (AJOL)

    SAM

    dicine. Howe emerged as thogenic bac ltiple drug r nthetic drugs et the need o high cost of e. The skepticis medies in orth. Corresponding a uthor(s) agree t ternational Lice. 125-132, 14 Ja. AJB2014.13653 r: 2484CDA49. 5. 015 n the copyrigh cademicjourn. Research valuat e Ebob Ta. Department o. 2Departm al activity of.

  1. Urban Pest Management. Selected Readings.

    Science.gov (United States)

    Cowles, Kathleen Letcher, Comp.; And Others

    These readings provide basic background information on urban integrated pest management and the development of Integrated Pest Management (IPM) programs for the control of rodents, cockroaches, and head lice. IPM is a decision-making process for deciding if pest supprssion treatments are needed, when they should be initiated, where they should be…

  2. The 2nd international veterinary poultry congress of Iran

    African Journals Online (AJOL)

    ehsan

    2012-07-24

    Jul 24, 2012 ... infected with the fleas (C. colombae) and lice (M. gallinae) as seen by the clinical manifestation of allergic urticarial ... Pigeons live side by side with human and other ... that all pigeons were infested with P. canariensis a blood.

  3. Ludus calamorum. Husité, Cesarini a Zikmund před bitvou u Domažlic v novém světle zapadlého pražského manifestu

    Czech Academy of Sciences Publication Activity Database

    Coufal, Dušan

    2013-01-01

    Roč. 5, č. 1 (2013), s. 39-73 ISSN 1804-0977 R&D Projects: GA ČR(CZ) GBP405/12/G148 Institutional support: RVO:67985955 Keywords : Hussites * Hussite manifestos * Sigismund of Luxemburg * Giuliano Cesarini * The Battel of Domažlice 1431 * communication Subject RIV: AB - History

  4. Scratch that itch: revisiting links between self-directed behaviour and parasitological, social and environmental factors in a free-ranging primate.

    Science.gov (United States)

    Duboscq, Julie; Romano, Valéria; Sueur, Cédric; MacIntosh, Andrew J J

    2016-11-01

    Different hypotheses explain variation in the occurrence of self-directed behaviour such as scratching and self-grooming: a parasite hypothesis linked with ectoparasite load, an environmental hypothesis linked with seasonal conditions and a social hypothesis linked with social factors. These hypotheses are not mutually exclusive but are often considered separately. Here, we revisited these hypotheses together in female Japanese macaques ( Macaca fuscata fuscata ) of Kōjima islet, Japan. We input occurrences of scratching and self-grooming during focal observations in models combining parasitological (lice load), social (dominance rank, social grooming, aggression received and proximity), and environmental (rainfall, temperature and season) variables. Using an information-theory approach, we simultaneously compared the explanatory value of models against each other using variation in Akaike's information criterion and Akaike's weights. We found that evidence for models with lice load, with or without environmental-social parameters, was stronger than that for other models. In these models, scratching was positively associated with lice load and social grooming whereas self-grooming was negatively associated with lice load and positively associated with social grooming, dominance rank and number of female neighbours. This study indicates that the study animals scratch primarily because of an immune/stimulus itch, possibly triggered by ectoparasite bites/movements. It also confirms that self-grooming could act as a displacement activity in the case of social uncertainty. We advocate that biological hypotheses be more broadly considered even when investigating social processes, as one does not exclude the other.

  5. Public Health Pest Control Category Manual.

    Science.gov (United States)

    Bowman, James S.; Turmel, Jon P.

    This manual provides information needed to meet the standards for pesticide applicator certification. It presents pest control guidelines for those organisms of public health significance. Fact sheets with line drawings discuss pests such as cockroaches, bedbugs, lice, ants, beetles, bats, birds, and rodents. (CS)

  6. Prevalence of major skin diseases of cattle and associated risk ...

    African Journals Online (AJOL)

    Dermatophilosis was significantly (p<0.05) higher in animals 2-5 years of age, cross breed and semi-intensively managed cattle. Generally, the prevalence of tick was high, that of lice and mange mite was moderate prevalence whereas the prevalence of dermatophillosis, skin wart, LSD and photosensitization was low.

  7. Impact of early salmon louse, Lepeophtheirus salmonis, infestation and differences in survival and marine growth of sea-ranched Atlantic salmon, Salmo salar L., smolts 1997–2009

    Science.gov (United States)

    Skilbrei, O T; Finstad, B; Urdal, K; Bakke, G; Kroglund, F; Strand, R

    2013-01-01

    The impact of salmon lice on the survival of migrating Atlantic salmon smolts was studied by comparing the adult returns of sea-ranched smolts treated for sea lice using emamectin benzoate or substance EX with untreated control groups in the River Dale in western Norway. A total of 143 500 smolts were released in 35 release groups in freshwater from 1997 to 2009 and in the fjord system from 2007 to 2009. The adult recaptures declined gradually with release year and reached minimum levels in 2007. This development corresponded with poor marine growth and increased age at maturity of ranched salmon and in three monitored salmon populations and indicated unfavourable conditions in the Norwegian Sea. The recapture rate of treated smolts was significantly higher than the controls in three of the releases performed: the only release in 1997, one of three in 2002 and the only group released in sea water in 2007. The effect of treating the smolts against salmon lice was smaller than the variability in return rates between release groups, and much smaller that variability between release years, but its overall contribution was still significant (P < 0.05) and equivalent to an odds ratio of the probability of being recaptured of 1.17 in favour of the treated smolts. Control fish also tended to be smaller as grilse (P = 0.057), possibly due to a sublethal effect of salmon lice. PMID:23311746

  8. Prevalence of ectoparasites of dogs and cats in Ijero and Moba ...

    African Journals Online (AJOL)

    For this purpose, a cross sectional study was conducted to determine the prevalence of ectoparasites on dogs and cats in Ijurin and Ikosu. Information on the age, and gender were obtained by interviewing the owners. Animal's skin was palpated and meticulously inspected, ticks and lice, that were found were transferred ...

  9. Agricultural Animal Pest Control. Bulletin 767.

    Science.gov (United States)

    Nolan, Maxcy P., Jr.

    Included in this training manual are descriptions and pictures of the following agricultural animal pests: mosquitoes, stable flies, horse flies and deer or yellow flies, house flies, horn flies, wound-infesting larvae, lice, mites, ticks, and bots and grubs. Information is given on the life-cycle and breeding habits of the pests. Methods of…

  10. Agricultural Animal Pest Control. Manual 90.

    Science.gov (United States)

    Missouri Univ., Columbia. Agricultural Experiment Station.

    This training manual provides information needed to meet the minimum EPA standards for certification as a commercial applicator of pesticides in the agricultural animal pest control category. The text discusses pesticide hazards, application techniques, and pests of livestock such as mosquitoes, flies, grubs and lice. (CS)

  11. Apply Pesticides Correctly, A Guide for Commercial Applicators: Agricultural Pest Control -- Animal.

    Science.gov (United States)

    Wamsley, Mary Ann, Ed.; Vermeire, Donna M., Ed.

    This guide contains basic information to meet specific standards for pesticide applicators. The text is concerned with the common pests of agricultural animals such as flies, ticks, bots, lice and mites. Methods for controlling these pests and appropriate pesticides are discussed. (CS)

  12. NUEVOS PIOJOS (PHTHIRAPTERA: AMBLYCERA, ISCHNOCERA) REGISTRADOS EN AVES MARINAS Y COSTERAS DE URUGUAY

    OpenAIRE

    Venzal, José M; Castro, Oscar; Katz, Helena; Félix, María L; Morgades, Diana; Palma, Ricardo L

    2007-01-01

    In this study, 17 lice species were collected and identified from marine and coastal birds from the Atlantic Ocean coast, rivers and lagoons of Uruguay. Among them, 16 species (one at generic level only) are recorded for the first time for this country.

  13. Infectious Diseases in Day Care.

    Science.gov (United States)

    Sleator, Esther K.

    Discussed in this publication are infectious illnesses for which children attending day care appear to be at special risk. Also covered are the common cold, some infectious disease problems receiving media attention, and some other annoying but not serious diseases, such as head lice, pinworms, and contagious skin conditions. Causes,…

  14. Swine production characteristics and management systems of ...

    African Journals Online (AJOL)

    Similarly, ectoparasites of importance in the study areas were ticks, lice and mange. Smallholder farmers practised semi-intensive system of management where pigs usually scavenge for food and supplemented with cereal brans, kitchen wastes and vegetables. Farmers provide housing and veterinary services to enhance ...

  15. Browse Title Index

    African Journals Online (AJOL)

    Items 5801 - 5850 of 11090 ... Vol 7, No 13 (2008), Head lice infestation in school children of a low .... Vol 10, No 66 (2011), Hepatic pathologies in the brackish water catfish (Chrysicthys ... Vol 8, No 13 (2009), Hepatotoxic effects of low dose oral ...

  16. Elemental analysis of Scottish populations of the ectoparasitic copepod Lepeophtheirus salmonis

    NARCIS (Netherlands)

    Shinn, A.P.; Bron, J.E.; Gray, D.J.; Sommerville, C.

    2000-01-01

    Conventional nebulisation ICPMS (Inductively Coupled Plasma Mass Spectrometry), was used to determine the concentration of a broad range of elements in the salmon louse Lepeophtheirus salmonis. Lice samples were collected from Atlantic salmon in seven localities (4 fish farms and 3 wild salmon

  17. Observations on the occurrence of the fish louse Argu/us japonicus ...

    African Journals Online (AJOL)

    Combining the available literature on the feeding of these two species (Talbot 1955; ... for the presence of fish lice, Argulus (Crustacea: Branchiura) directly after .... Schoonbee (1969) carrying out a study of the feeding habits of the fish in Lake ...

  18. Myotrioza myopori Taylor, a designation of the type species for the genus Myotrioza gen. nov. (Psylloidea: Triozidae).

    Science.gov (United States)

    Taylor, Gary S

    2016-04-04

    Taylor et al. (2016) described twenty new species in one new genus of Australian jumping plant-lice from the plant family Scrophulariaceae but did not nominate a type species, a requirement under the International Code of Zoological Nomenclature under Article 13.3 to make the genus name available (ICZN 1999).

  19. Natural Nano-Machines

    Indian Academy of Sciences (India)

    Administrator

    transport, ion pump, ATP syn- thase. A popularized ..... gas. A lice: I could not understand how A T P m olecules serve as fuels for m olecular m achines. ..... [16] V Balzani, M Venturi and A Credi, Molecular Devices and Machines: a Journey into ...

  20. Allergien durch Stiche und Bisse von Insekten und Spinnentieren

    DEFF Research Database (Denmark)

    Blank, S; Schiener, M; Ollert, M.

    2016-01-01

    Allergic reactions due to stings of Hymenoptera species, such as honeybees or yellow jackets, are well known as severe allergies with potentially fatal outcome. Much less common is that also bites of blood-sucking insects (mosquitos, horseflies, flies, bugs, lice and fleas) and arachnids (ticks...

  1. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Amitraz is formamidine pesticide widely used as insecticide and acaricide. In veterinary medicine, amitraz has important uses against ticks, mites and lice on animals. Also, amitraz is used in apiculture to control Varroa destructor. It this study, the alkaline Comet assay was used to evaluate DNA damaging effects of amitraz ...

  2. The distribution of exocrine glands in Lepeophtheirus salmonis and Caligus elongatus (Copepoda: Caligidae)

    NARCIS (Netherlands)

    Bell, S.; Bron, J.E.; Sommerville, C.

    2000-01-01

    The morphology, function and distribution of exocrine glands of copepods have rarely been studied in detail and almost nothing is known about them in the sea lice species L. salmonis and C. elongatus. This study utilised a novel application of a light-microscopy staining technique to reveal a

  3. Armazenamento refrigerado de Physalis¹

    Directory of Open Access Journals (Sweden)

    Renata Padilha Bolzan

    2011-10-01

    Full Text Available Este trabalho teve como objetivo avaliar o armazenamento refrigerado de Physalis angulata L. e Physalis peruviana L. com e sem cálice. Os frutos foram colhidos com coloração externa da casca alaranjada e armazenados por até 90 dias, com e sem a presença de cálice, nas temperaturas de 2±1 ºC e UR 90±5% ou 10±1 ºC e UR 90±5%. Posteriormente, eles foram mantidos em condição de prateleira a 22±2 ºC e UR 70± 5 %, durante três dias, e avaliados quanto à coloração externa da casca, relação SST/ATT, perda de peso e firmeza de polpa. Melhores resultados foram obtidos armazenando ambas as espécies de Physalis a 2±1 ºC e UR 90±5% com cálice por até 90 dias e sem cálice por até 58 dias.

  4. Gene expression in Atlantic salmon skin in response to infection with the parasitic copepod Lepeophtheirus salmonis, cortisol implant, and their combination

    Directory of Open Access Journals (Sweden)

    Krasnov Aleksei

    2012-04-01

    Full Text Available Abstract Background The salmon louse is an ectoparasitic copepod that causes major economic losses in the aquaculture industry of Atlantic salmon. This host displays a high level of susceptibility to lice which can be accounted for by several factors including stress. In addition, the parasite itself acts as a potent stressor of the host, and outcomes of infection can depend on biotic and abiotic factors that stimulate production of cortisol. Consequently, examination of responses to infection with this parasite, in addition to stress hormone regulation in Atlantic salmon, is vital for better understanding of the host pathogen interaction. Results Atlantic salmon post smolts were organised into four experimental groups: lice + cortisol, lice + placebo, no lice + cortisol, no lice + placebo. Infection levels were equal in both treatments upon termination of the experiment. Gene expression changes in skin were assessed with 21 k oligonucleotide microarray and qPCR at the chalimus stage 18 days post infection at 9°C. The transcriptomic effects of hormone treatment were significantly greater than lice-infection induced changes. Cortisol stimulated expression of genes involved in metabolism of steroids and amino acids, chaperones, responses to oxidative stress and eicosanoid metabolism and suppressed genes related to antigen presentation, B and T cells, antiviral and inflammatory responses. Cortisol and lice equally down-regulated a large panel of motor proteins that can be important for wound contraction. Cortisol also suppressed multiple genes involved in wound healing, parts of which were activated by the parasite. Down-regulation of collagens and other structural proteins was in parallel with the induction of proteinases that degrade extracellular matrix (MMP9 and MMP13. Cortisol reduced expression of genes encoding proteins involved in formation of various tissue structures, regulators of cell differentiation and growth factors. Conclusions

  5. A common-garden experiment to quantify evolutionary processes in copepods: the case of emamectin benzoate resistance in the parasitic sea louse Lepeophtheirus salmonis.

    Science.gov (United States)

    Ljungfeldt, Lina Eva Robin; Espedal, Per Gunnar; Nilsen, Frank; Skern-Mauritzen, Mette; Glover, Kevin Alan

    2014-05-19

    The development of pesticide resistance represents a global challenge to food production. Specifically for the Atlantic salmon aquaculture industry, parasitic sea lice and their developing resistance to delousing chemicals is challenging production. In this study, seventeen full sibling families, established from three strains of Lepeophtheirus salmonis displaying differing backgrounds in emamectin benzoate (EB) tolerance were produced and quantitatively compared under a common-garden experimental design. Lice surviving to the preadult stage were then exposed to EB and finally identified through the application of DNA parentage testing. With the exception of two families (19 and 29%), survival from the infectious copepod to preadult stage was very similar among families (40-50%). In contrast, very large differences in survival following EB exposure were observed among the families (7.9-74%). Family survival post EB exposure was consistent with the EB tolerance characteristics of the strains from which they were established and no negative effect on infection success were detected in association with increased EB tolerance. Two of the lice families that displayed reduced sensitivity to EB were established from a commercial farm that had previously used this chemical. This demonstrates that resistant alleles were present on this farm even though the farm had not reported treatment failure. To our knowledge, this represents the first study where families of any multi-cellular parasite have been established and compared in performance under communal rearing conditions in a common-garden experiment. The system performed in a predictable manner and permitted, for the first time, elucidation of quantitative traits among sea lice families. While this experiment concentrated on, and provided a unique insight into EB sensitivity among lice families, the experimental design represents a novel methodology to experimentally address both resistance development and other

  6. Miasis cutánea por Cochliomyia hominivorax (Coquerel) (Díptera: Calliphoridae) en el Hospital Universidad del Norte, Soledad, Atlántico

    OpenAIRE

    Claudia M.E. Romero-Vivas; Luis Eduardo Castro; Lila Visbal; Ana María Santos; Esther Díaz

    2009-01-01

    La miasis humana es el parasitismo de órganos y tejidos producido por especies de larvas del orden Díptera. El diagnóstico se realiza con base en hallazgos clínicos y se confirma con estudios entomológicos. Se presenta el caso de una niña de siete años de edad que fue llevada por su padre al servicio de urgencias por presentar fiebre asociada a una lesión abscedada en el cuero cabelludo, con salida espontánea de larvas. Como hallazgo en el examen físico se reportó pediculosis grave. La pa...

  7. Clinical longitudinal standards for height, weight, height velocity, weight velocity, and stages of puberty.

    Science.gov (United States)

    Tanner, J M; Whitehouse, R H

    1976-01-01

    New charts for height, weight, height velocity, and weight velocity are presented for clinical (as opposed to population survey) use. They are based on longitudinal-type growth curves, using the same data as in the British 1965 growth standards. In the velocity standards centiles are given for children who are early- and late-maturing as well as for those who mature at the average age (thus extending the use of the previous charts). Limits of normality for the age of occurrence of the adolescent growth spurt are given and also for the successive stages of penis, testes, and pubic hair development in boys, and for stages of breast and pubic hair development in girls. PMID:952550

  8. Management of chronic symphysis pubis pain following child birth with spinal cord stimulator.

    LENUS (Irish Health Repository)

    Idrees, Ahsan

    2012-01-01

    The case of a 39 year old woman who had diastasis of pubic symphysis following childbirth and later developed severe chronic neuropathic pain and disability is presented. She received extensive surgical and medical treatment for 6 years with no improvement of symptoms. The VNRS (Visual Numerical Rating Scale) pain score was 7\\/10 or more most of the time. This was quite disabling in terms of her quality of life. A spinal cord stimulator was inserted after failure of other modalities of pain management which resulted in dramatic improvement in the quality of life measured with SF-36 questionnaire. Her pain score became 0\\/10 VNRS and she was free from opioids and psychotropic medications within 3 months post insertion. Spinal cord stimulator can be considered for the management of pain due to diastasis of pubic symphysis, not amenable to other therapies.

  9. Radiological findings in symphyseal and adductor-related groin pain in athletes

    DEFF Research Database (Denmark)

    Branci, Sonia; Thorborg, Kristian; Nielsen, Michael Bachmann

    2013-01-01

    and imaging techniques. The authors performed a review of the existing original evidence-based radiological literature involving radiography, ultrasonography and MRI in athletes with long-standing symphyseal and adductor-related groin pain. Our search yielded 17 original articles, of which 12 were dedicated......Long-standing symphyseal and adductor-related groin pain is a common problem for many athletes, and requires a multidisciplinary approach. Radiological evaluation of symptomatic individuals is a cornerstone in the diagnostic workup, and should be based on precise and reliable diagnostic terms...... to MRI, four to radiography and one to ultrasonography. Four main radiological findings seem to consistently appear: degenerative changes at the pubic symphyseal joint, pathology at the adductor muscle insertions, pubic bone marrow oedema and the secondary cleft sign. However, the existing diagnostic...

  10. The utility of the Samworth and Gowland age-at-death "look-up" tables in forensic anthropology.

    Science.gov (United States)

    Passalacqua, Nicholas V

    2010-03-01

    Accurate age-at-death estimates are crucial to forensic anthropologists when onstructing biological profiles aimed at narrowing a missing-persons list and to allow for timely and efficient identification of an unknown victim. The present contribution evaluates the utility of three new age-at-death estimation techniques recently proposed by Samworth and Gowland (2007). Results indicate that, in the samples under study, the Samworth and Gowland estimates from the pubic symphysis and auricular surface perform similar to alternate phase methods. The combined method does not appear to further enhance either the precision or the accuracy of the single pubic symphysis age-at-death estimate. In conclusion, these new methods seem to be more robust to distribution deviations than originally proposed by Samworth and Gowland (2007). They are therefore suitable for immediate and reliable forensic usage in the United States and worthy of further research for their use in North American forensic contexts.

  11. MR findings in athletes with pubalgia

    International Nuclear Information System (INIS)

    Albers, S.L.; Spritzer, C.E.; Garrett, W.E. Jr.; Meyers, W.C.

    2001-01-01

    Objective. To describe the MR findings in athletes with pubalgia.Design and patients. Pelvic MR images of 32 athletes (30 men, 2 women) with pubalgia were studied. T1-weighted and T2-weighted (SE and FSE) and STIR images in the axial and coronal planes were obtained on a 1.5-T system. Images were reviewed for general pelvic pathology. Special attention was given to the pubic symphysis, groin and pelvic musculature, and to the abdominal wall musculature.Results. Thirty surgically confirmed cases comprise the study group. Abnormalities in the following were found: pubic symphysis (21/30), abdominal wall (27/30), groin musculature, including rectus abdominis (21/30), pectineus (6/30), and adductor muscle group (18/30).Conclusions. Pubalgia is a complex process which is frequently multifactorial. The MRI findings can alter the surgical approach. (orig.)

  12. MR findings in athletes with pubalgia.

    Science.gov (United States)

    Albers, S L; Spritzer, C E; Garrett, W E; Meyers, W C

    2001-05-01

    To describe the MR findings in athletes with pubalgia. Pelvic MR images of 32 athletes (30 men, 2 women) with pubalgia were studied. T1-weighted and T2-weighted (SE and FSE) and STIR images in the axial and coronal planes were obtained on a 1.5-T system. Images were reviewed for general pelvic pathology. Special attention was given to the pubic symphysis, groin and pelvic musculature, and to the abdominal wall musculature. Thirty surgically confirmed cases comprise the study group. Abnormalities in the following were found: pubic symphysis (21/30), abdominal wall (27/30), groin musculature, including rectus abdominis (21/30), pectineus (6/30), and adductor muscle group (18/30). Pubalgia is a complex process which is frequently multifactorial. The MRI findings can alter the surgical approach.

  13. MR findings in athletes with pubalgia

    Energy Technology Data Exchange (ETDEWEB)

    Albers, S.L. [Dept. of Radiology, Duke Univ. Medical Center, Durham, NC (United States); Dept. of Radiology, Duke Univ. Medical Center, Durham, NC (United States); Spritzer, C.E. [Dept. of Radiology, Duke Univ. Medical Center, Durham, NC (United States); Garrett, W.E. Jr.; Meyers, W.C. [Dept. of Orthopaedics, Duke Univ. Medical Center, Durham, NC (United States)

    2001-05-01

    Objective. To describe the MR findings in athletes with pubalgia.Design and patients. Pelvic MR images of 32 athletes (30 men, 2 women) with pubalgia were studied. T1-weighted and T2-weighted (SE and FSE) and STIR images in the axial and coronal planes were obtained on a 1.5-T system. Images were reviewed for general pelvic pathology. Special attention was given to the pubic symphysis, groin and pelvic musculature, and to the abdominal wall musculature.Results. Thirty surgically confirmed cases comprise the study group. Abnormalities in the following were found: pubic symphysis (21/30), abdominal wall (27/30), groin musculature, including rectus abdominis (21/30), pectineus (6/30), and adductor muscle group (18/30).Conclusions. Pubalgia is a complex process which is frequently multifactorial. The MRI findings can alter the surgical approach. (orig.)

  14. Technical Note: Reliability of Suchey-Brooks and Buckberry-Chamberlain methods on 3D visualizations from CT and laser scans

    DEFF Research Database (Denmark)

    Villa, Chiara; Buckberry, Jo; Cattaneo, Cristina

    2013-01-01

    Previous studies have reported that the ageing method of Suchey-Brooks (pubic bone) and some of the features applied by Lovejoy et al. and Buckberry-Chamberlain (auricular surface) can be confidently performed on 3D visualizations from CT-scans. In this study, seven observers applied the Suchey......-Brooks and the Buckberry-Chamberlain methods on 3D visualizations based on CT-scans and, for the first time, on 3D visualizations from laser scans. We examined how the bone features can be evaluated on 3D visualizations and whether the different modalities (direct observations of bones, 3D visualization from CT......-observer agreement was obtained in the evaluation of the pubic bone in all modalities. In 3D visualizations of the auricular surfaces, transverse organization and apical changes could be evaluated, although with high inter-observer variability; micro-, macroporosity and surface texture were very difficult to score...

  15. An Unusual Case of White Piedra Due to Trichosporon inkin Mimicking Trichobacteriosis.

    Science.gov (United States)

    Zhuang, Kaiwen; Ran, Xin; Dai, Yaling; Tang, Jiaoqing; Yang, Qin; Pradhan, Sushmita; Ran, Yuping

    2016-12-01

    White piedra is a superficial mycosis characterized by soft, white-to-tan, irregular nodules attached to the hair shafts. A 36-year-old man presented with small lumps in his pubic hair, without any other symptoms. The clinical features were suggestive of trichobacteriosis. Pathology analysis of the infected hair revealed that the concretions surrounding the hair shaft were full of fungal elements, parts of which had invaded into the cuticle. Culture on Sabouraud dextrose agar grew creamy, yellow-white colonies identified as Trichosporon inkin by the sequence of the nuclear ribosomal intergenic spacer region. The condition was treated by shaving the pubic hair and administering antifungal therapy (oral itraconazole and topical ketoconazole).

  16. Brief reports: ultrasound-guided obturator nerve block: a proximal interfascial technique.

    Science.gov (United States)

    Taha, Ahmad Muhammad

    2012-01-01

    In this report, I describe and evaluate a proximal ultrasound (US)-guided obturator nerve block technique using an interfascial local anesthetic (LA) injection deep to the pectineus muscle. The pectineus muscle was identified and followed, while the US probe was tilted cranially until the superior pubic ramus was visualized. In this plane, LA was injected interfascially between the pectineus and obturator externus. The median time required to identify the injection site was 4 seconds (95% confidence interval, 3-5 seconds). The median motor block onset was 4 minutes (95% confidence interval, 3-5 minutes). Both obturator nerve branches were blocked successfully in all patients (100%). The US-guided obturator nerve block using interfascial LA injection inferior to the superior pubic ramus, between the pectineus and obturator externus muscles, was shown to be a simple and successful technique.

  17. Patient with bilateral breast enlargement and hypospadias.

    Science.gov (United States)

    Ali, A A; Ahmed, T; Rashid, M M

    2009-01-01

    A 20 year old man was admitted in the surgical unit of Dhaka Medical College Hospital on August 2007 presented with Hypospadias & underdeveloped penis from childhood, gradual enlargement of both breasts for the last 10 years, absence of axillary and pubic hair from puberty & painful swelling of both testes for the last 3 years. The patient was regarded as a female upto the age of 10 years. He has got no voice change since puberty. On examination he had average body built, there was bilateral gynaecomastia, hypospadias, rudimentary penis & absence of pubic and axillary hair. His testosterone level, serum prolactin level, serum progesterone level, serum estradiol level was done. Cytology on buccal smear done and ultrasonography revealed no ovary and uterus. Ultimately patient was diagnosed as a case of androgen insensitivity syndrome (AIS). The case is reported for clinical awareness & to share our experience.

  18. Nutritional status and morbidity pattern in school age children in Nepal

    Directory of Open Access Journals (Sweden)

    N Bhandari

    2012-09-01

    Full Text Available School Health has been regarded as a high priority intervention in developing countries. However it has not been prioritized in Nepal for many years. The objectives of the study are to find out the nutritional status and morbidity pattern in school age children. To arouse importance of personal hygiene and healthful surrounding through information, education and communication (IEC. This cross-sectional study was administered in two schools located in Bolde phedeche and Mahure of Kavrepalanchowk. From the selected schools, a total number of 160 students studying from Grade 1 to V were enumerated in the study using census survey method. Among 160 students, the most important three problems were pediculosis 42(26.2 %, dental caries 29(18.1%, and waxy ear 27(17.1 %. Thus the school health education should put more emphasis on oral care, nutrition, personal hygiene and others. Applying classification of Indian Academy of Pediatrics: based on weight for age, 36(55.3% boys and 34(35.8% girls fall under 1st degree malnutrition and 15(23.07% boys and 44(46.3% girls fall under IInd degree malnutrition, 7(7.2 % girls fall under IIIrd degree malnutrition.The health and nutritional standards of school children in this study were found to be unsatisfactory. Among different morbidity pediculosis is found more in girls. The present study put more emphasis on the need for initiation of school health program in the school with more on improving personal hygiene, prevention of disease like parasitic infection/infestation and improvement of their nutritional status. Journal of College of Medical Sciences-Nepal,2012,Vol-8,No-2, 12-16 DOI: http://dx.doi.org/10.3126/jcmsn.v8i2.6832

  19. The prevalence of Pediculus capitis among School Children in Fars Province, Southern Iran

    Directory of Open Access Journals (Sweden)

    R Neirami

    2009-05-01

    Full Text Available "nBackground: Pediculus capitis or head louse infestation affects millions of children worldwide, especially those in the 5-11 years age group. This study aimed to determine the prevalence of head pediculosis among school children in ur­ban and rural areas of Fars Province, southern Iran."nMethods: All school children of age 6-11 yr from both genders in all urban and rural areas of the province were screened for head louse infestation by examination of their hair and scalps. Parents of all infested children were also exam­ined. The study was repeated in different seasons in the same areas. Moreover, infested children were treated with 5% permethrin shampoo and re-examined one week later for any relapse."nResults: The general prevalence of head louse infestation in primary school students was 0.49% in autumn, 0.37% in win­ter and 0.20% in spring. In the mentioned seasons, the prevalence of P. capitis was higher among females and in ru­ral areas (P=0.001. Although treatment with permethrin shampoo failed in females, it was successful in all infected males from both regions in autumn and spring and in males from urban areas in winter."nConclusion: Head louse infestation is uncommon among Fars Province school children in rural and urban areas and should not be considered a public health priority. However, due to the higher prevalence of pediculosis in low socioeco­nomic group and rural area in our region, it seems that health promotion, particularly early detection and effec­tive management strategies should target this group in the province.

  20. Guidelines for a U.S. Counterpropaganda Strategy to Defeat Al-Qaeda Recruiting

    Science.gov (United States)

    2011-06-01

    the press, the church, the cinema , the education system (universities, pubic and primary schools), and recruiting the best authors to publish books...1945 Ideology and Purpose. President Roosevelt delivered a speech to Congress nearly a year before the Japanese attacked Pearl Harbor and...Nazi propaganda.79 Third, the foreign campaign concentrated efforts to counter German and Japanese propaganda to the Allies.80 The propaganda

  1. How much vertical displacement of the symphysis indicates instability after pelvic injury?

    Science.gov (United States)

    Golden, Robert D; Kim, Hyunchul; Watson, Jeffrey D; Oliphant, Bryant W; Doro, Christopher; Hsieh, Adam H; Osgood, Greg M; O'Toole, Robert V

    2013-02-01

    Measures of pubic symphyseal widening are used by at least two classification systems as determinants of injury grade. Recent work has challenged the commonly used parameter of 2.5 cm of pubic symphysis as an accurate marker of pelvic injury grade and has suggested a role of rotation in the flexion-extension plane as a determinant of pelvic stability. We investigated pelvic stability in the flexion-extension plane to determine a threshold of rotational displacement of the hemipelvis above which the potential for instability exists. Cadaveric specimens were mounted onto a servohydraulic biaxial testing machine and subjected to a vertically directed flexion moment. Position of hemipelvis was recorded using a three-dimensional motion capture system and video recording. Displacement of the pubic symphysis and changes in length and position of the sacrospinous and sacrotuberous ligaments were recorded. Amount of force applied was measured and recorded. A yield point was determined as the first point at which the force plot exhibited a decrease in force and was correlated to the corresponding displacement. The mean vertical displacement of the pubic symphysis at the yield point was 16 mm (95% confidence interval, 11-22 mm). Mean sacrospinous ligament strain at yield point was 4% (range, 1.0-9.5%). Pelves with vertical rotational symphyseal displacement of less than 11 mm can reasonably be expected to have rotational stability in the flexion-extension plane. Those with displacement of greater than 22 mm can be expected to have lost some integrity regarding resistance to pelvic flexion. These values may allow clinicians to infer pelvic stability from amount of vertical symphyseal displacement.

  2. Fetal MR imaging of Kniest dysplasia

    International Nuclear Information System (INIS)

    Yazici, Zeynep; Kline-Fath, Beth M.; Laor, Tal; Tinkle, Bradley T.

    2010-01-01

    We present a case of Kniest dysplasia, a rare form of the type II collagenopathies, with prenatal MRI. Sonography revealed only short limbs in the fetus. Fetal MRI findings included enlarged hyaline cartilaginous structures with abnormally high T2 signal intensity, delayed ossification of the pubic and ischial bones, and platyspondyly. By delineating the cartilaginous abnormalities, fetal MRI can contribute to the prenatal diagnosis of chondrodysplasias. (orig.)

  3. Condrossarcoma de ramo púbico superior simulando hérnia inguinal

    Directory of Open Access Journals (Sweden)

    Fabio Terabe

    Full Text Available Primary pelvic tumors are relatively rare, representing no more than 5% of primary bone tumors. We presented a case of a chondrosarcoma of the superior pubic ramus initially managed as an inguinal hernia and then operated under oncological principles. Special attention is attributed to the importance for the correct diagnosis and surgical treatment given the low efficacy of adjuvant treatments for this type of neoplasia.

  4. Multicentric malignant transformation of multiple exostoses

    International Nuclear Information System (INIS)

    Ozaki, T.; Hillmann, A.; Winkelmann, W.; Blasius, S.; Link, T.

    1998-01-01

    We treated a patient with large multiple chondrosarcomas derived from multiple cartilaginous exostoses. One sarcoma originated in the left pubic bone and the other sarcoma in the posterior aspect of the greater trochanter of the left femur. Thirty months after hindquarter amputation, the patient is alive without relapse. This is the first report of a patient with synchronous multiple malignant transformation of multiple cartilaginous exostoses. (orig.)

  5. From the politics and policy of the cuts to an outline of an oppositional strategy

    OpenAIRE

    Walker, Alan; Walker, Carol

    2011-01-01

    There have been reductions in public expenditure previously, for example under the Labour Governments of the 1970s and the Conservative ones of the 1980s, which were also accompanied by colourful anti-state rhetoric. However, they pale in comparison with the present Con-Dem Coalition Government's proposals contained in the Comprehensive Spending Review (CSR). These cuts, if achieved, presage the largest sustained and deepest retranchment in pubic spending since the 1920s. Their scale and pote...

  6. Metagenomic analyses of bacteria on human hairs: a qualitative assessment for applications in forensic science.

    Science.gov (United States)

    Tridico, Silvana R; Murray, Dáithí C; Addison, Jayne; Kirkbride, Kenneth P; Bunce, Michael

    2014-01-01

    Mammalian hairs are one of the most ubiquitous types of trace evidence collected in the course of forensic investigations. However, hairs that are naturally shed or that lack roots are problematic substrates for DNA profiling; these hair types often contain insufficient nuclear DNA to yield short tandem repeat (STR) profiles. Whilst there have been a number of initial investigations evaluating the value of metagenomics analyses for forensic applications (e.g. examination of computer keyboards), there have been no metagenomic evaluations of human hairs-a substrate commonly encountered during forensic practice. This present study attempts to address this forensic capability gap, by conducting a qualitative assessment into the applicability of metagenomic analyses of human scalp and pubic hair. Forty-two DNA extracts obtained from human scalp and pubic hairs generated a total of 79,766 reads, yielding 39,814 reads post control and abundance filtering. The results revealed the presence of unique combinations of microbial taxa that can enable discrimination between individuals and signature taxa indigenous to female pubic hairs. Microbial data from a single co-habiting couple added an extra dimension to the study by suggesting that metagenomic analyses might be of evidentiary value in sexual assault cases when other associative evidence is not present. Of all the data generated in this study, the next-generation sequencing (NGS) data generated from pubic hair held the most potential for forensic applications. Metagenomic analyses of human hairs may provide independent data to augment other forensic results and possibly provide association between victims of sexual assault and offender when other associative evidence is absent. Based on results garnered in the present study, we believe that with further development, bacterial profiling of hair will become a valuable addition to the forensic toolkit.

  7. Virilizing Adrenocortical Carcinoma Advancing to Central Precocious Puberty after Surgery

    OpenAIRE

    Kim, Min Sun; Yang, Eu Jeen; Cho, Dong Hyu; Hwang, Pyung Han; Lee, Dae-Yeol

    2015-01-01

    Adrenocortical carcinoma (ACC) in pediatric and adolescent patients is rare, and it is associated with various clinical symptoms. We introduce the case of an 8-year-old boy with ACC who presented with peripheral precocious puberty at his first visit. He displayed penis enlargement with pubic hair and facial acne. His serum adrenal androgen levels were elevated, and abdominal computed tomography revealed a right suprarenal mass. After complete surgical resection, the histological diagnosis was...

  8. Acute Osteomyelitis of the Symphysis Pubis after Inguinal Hernia Surgery

    Directory of Open Access Journals (Sweden)

    Recep Tekin

    2015-01-01

    Full Text Available Osteomyelitis of pubic symphysis is infectious inflammatory condition of the symphysis pubis and rare complication of surgery around inguinal and groin region. It should be kept in mind in the differential diagnosis of lower pelvic pain and should be sought in cases of pelvic insufficiency fractures. Herein, we present a case of a 55-year-old man with osteomyelitis of the symphysis pubis following inguinal hernia surgery for diagnosis and management of this rare condition.

  9. Endoscopic repair of post-traumatic fistulae of posterior urethra using hyaluronic acid dextranomer.

    Science.gov (United States)

    Appignani, Antonino; Bertozzi, Mirko; Prestipino, Marco

    2010-07-01

    Many surgical approaches to posterior urethral diseases are reported in published data. The authors report a case of a patient with prostatic urethral post-traumatic fistulae, probably developed from an abscess that developed after a surgical intervention to correct a pubic symphysis fracture. The fistulae were repaired with an unusual mininvasive endourologic procedure, using the hyaluronic acid dextranomer, which is commonly used in vesicoureteral reflux treatment. Copyright 2010 Elsevier Inc. All rights reserved.

  10. US in pubalgia

    OpenAIRE

    Balconi, Giuseppe

    2011-01-01

    There is considerable confusion over the word “pubalgia” with regard to the definition and the etiological causes of this condition. The term pubalgia should be used to indicate disabling pain affecting the pubic region in people who practise sports. Pubalgia affects 10% of those who practise sports and it is particularly prevalent in football players. According to the literature, about 40% of cases of pubalgia are caused by overuse of the symphysis pubis with progressive lesions affecting th...

  11. Athletic Pubalgia in Females: Predictive Value of MRI in Outcomes of Endoscopic Surgery.

    Science.gov (United States)

    Matikainen, Markku; Hermunen, Heikki; Paajanen, Hannu

    2017-08-01

    Athletic pubalgia is typically associated with male athletes participating in contact sports and less frequently with females. Endoscopic surgery may fully treat the patient with athletic pubalgia. To perform an outcomes analysis of magnetic resonance imaging (MRI) and endoscopic surgery in female patients with athletic pubalgia. Cohort study; Level of evidence, 3. Fifteen physically active female patients (mean age, 37 years) with athletic pubalgia were treated surgically via placement of total extraperitoneal endoscopic polypropylene mesh behind the injured groin area. The presence of preoperative bone marrow edema (BME) at the pubic symphysis seen on MRI was graded from 0 to 3 and correlated with pain scores after surgery. The outcome measures were pre- and postoperative pain scores and recovery to daily activity between 1 and 12 months after surgery. Results were compared with previously published scores from male athletes (n = 30). With the exception of lower body mass index, the females with (n = 8) and without (n = 7) pubic BME had similar patient characteristics to the corresponding males. Mean inguinal pain scores (0-10) before surgical treatment were greater in females than males (during exercise, 7.8 ± 1.1 vs 6.9 ± 1.1; P = .0131). One month after surgery, mean pain scores for females were still greater compared with males (2.9 ± 1.7 vs 1.3 ± 1.6; P = .0034). Compared with female athletes with normal MRI, pubic BME was related to increased mean preoperative pain scores (8.13 ± 0.99 vs 6.43 ± 1.2; P = .0122). After 1 year, surgical outcomes were excellent or good in 47% of women. Endoscopic surgery was helpful in half of the females with athletic pubalgia in this study. The presence of pubic BME may predict slightly prolonged recovery from surgery.

  12. Distributed software applications in JAVA for portable processors operating on a wireless LAN

    OpenAIRE

    Rothenhaus, Kurt J.

    1999-01-01

    Approved for pubic release; distribution is unlimited As the wave of future Information Technology makes its way into the construction and design of new ships and submarines, it is imperative to examine methods to thoroughly economically backfit older platforms with similar technology. Affordable, Commercial-off-the-shelf (COTS) industrial products have provided us with a means to reduce miscommunication and exponentially increase the availability of information via small pen based compute...

  13. Atrichia congenita

    Directory of Open Access Journals (Sweden)

    Marfatia Y

    1991-01-01

    Full Text Available Three sisters aged 10, 13 and 14, presented with absence of scalp and facial hair. The youngest sister had scalp hair at birth, but had hair fall later, while the other two did not have hair at birth. Three other siblings had normal long hair, and there was no family history of any similar condition. Examination showed complete absence of scalp, axillary and pubic hair in all the three sisters.

  14. Using polypropylene mesh graft for soft-tissue reconstruction in internal hemipelvectomy: a case report

    Directory of Open Access Journals (Sweden)

    Asavamongkolkul Apichat

    2012-06-01

    Full Text Available Abstract We report the case of a patient with chondrosarcoma involving the right pelvis and contralateral pubic area in a 45-year-old male who underwent an extensive internal hemipelvectomy without bony reconstruction. We demonstrate the technique of using polypropylene mesh graft for soft-tissue reconstruction. Follow-up at 7.5 years showed a good oncological and functional outcome.

  15. West Bank and Gaza : Country Procurement Issues Paper

    OpenAIRE

    World Bank

    2008-01-01

    The main aim of the CPIP is to assess the current state of pubic procurement in West Bank and Gaza in the form of a ''snap shot'' and accordingly, to provide a partial assessment, broadly along the lines of the OPCS paper that would address the following objectives. First, to assess the latest progress with regard to the procurement reform recommended by the 2004 CPAR and the commitment of...

  16. Palmoplantar keratoderma in myxedema

    Directory of Open Access Journals (Sweden)

    Mittal R

    2002-01-01

    Full Text Available A 45-years-old woman came with diffuse yellowwaxy thickening, dryness and scaly skin of palms and soles and thickening of knuckles on dorsa of hands since 2 years. In addition, she had hoarseness of voice, weight gain, slow response, intolerance to cold, loss of pubic and axillary hair, generalised dryness and coarseness of skin, and mask like fades. Diagnosis of palmoplantar keratoderma and myxedema was confirmed by investigations.

  17. Fetal MR imaging of Kniest dysplasia

    Energy Technology Data Exchange (ETDEWEB)

    Yazici, Zeynep [Uludag University, Faculty of Medicine, Department of Radiology, Gorukle (Turkey); Kline-Fath, Beth M.; Laor, Tal [Cincinnati Children' s Hospital Medical Center, Department of Radiology, Cincinnati, OH (United States); Tinkle, Bradley T. [Cincinnati Children' s Hospital Medical Center, Division of Human Genetics, Cincinnati, OH (United States)

    2010-03-15

    We present a case of Kniest dysplasia, a rare form of the type II collagenopathies, with prenatal MRI. Sonography revealed only short limbs in the fetus. Fetal MRI findings included enlarged hyaline cartilaginous structures with abnormally high T2 signal intensity, delayed ossification of the pubic and ischial bones, and platyspondyly. By delineating the cartilaginous abnormalities, fetal MRI can contribute to the prenatal diagnosis of chondrodysplasias. (orig.)

  18. Pelvic instability after bone graft harvesting from posterior iliac crest: report of nine patients

    Energy Technology Data Exchange (ETDEWEB)

    Chan, K.; Pathria, M.; Jacobson, J. [Dept. of Radiology, Univ. of California, San Diego, CA (United States); Resnick, D. [Dept. of Radiology, Veterans Affairs Medical Center, San Diego, CA (United States)

    2001-05-01

    Objective. To report the imaging findings in nine patients who developed pelvic instability after bone graft harvest from the posterior aspect of the iliac crest.Design and patients. A retrospective study was performed of the imaging studies of nine patients who developed pelvic pain after autologous bone graft was harvested from the posterior aspect of the ilium for spinal arthrodesis. Plain films, bone scans, and CT and MR examinations of the pelvis were reviewed. Pertinent aspects of the clinical history of these patients were noted, including age, gender and clinical symptoms.Results. The age of the patients ranged from 52 to 77 years (average 69 years) and all were women. The bone graft had been derived from the posterior aspect of the iliac crest about the sacroiliac joint. All patients subsequently developed subluxation of the pubic symphysis. Eight patients had additional insufficiency fractures of the iliac crest adjacent to the bone graft donor site, and five patients also revealed subluxation of the sacroiliac joint. Two had insufficiency fractures of the sacrum and one had an additional fracture of the pubic ramus.Conclusions. Pelvic instability is a potential complication of bone graft harvesting from the posterior aspect of the iliac crest. The pelvic instability is manifested by insufficiency fractures of the ilium and subluxation of the sacroiliac joints and pubic symphysis. (orig.)

  19. Pelvic instability after bone graft harvesting from posterior iliac crest: report of nine patients

    International Nuclear Information System (INIS)

    Chan, K.; Pathria, M.; Jacobson, J.; Resnick, D.

    2001-01-01

    Objective. To report the imaging findings in nine patients who developed pelvic instability after bone graft harvest from the posterior aspect of the iliac crest.Design and patients. A retrospective study was performed of the imaging studies of nine patients who developed pelvic pain after autologous bone graft was harvested from the posterior aspect of the ilium for spinal arthrodesis. Plain films, bone scans, and CT and MR examinations of the pelvis were reviewed. Pertinent aspects of the clinical history of these patients were noted, including age, gender and clinical symptoms.Results. The age of the patients ranged from 52 to 77 years (average 69 years) and all were women. The bone graft had been derived from the posterior aspect of the iliac crest about the sacroiliac joint. All patients subsequently developed subluxation of the pubic symphysis. Eight patients had additional insufficiency fractures of the iliac crest adjacent to the bone graft donor site, and five patients also revealed subluxation of the sacroiliac joint. Two had insufficiency fractures of the sacrum and one had an additional fracture of the pubic ramus.Conclusions. Pelvic instability is a potential complication of bone graft harvesting from the posterior aspect of the iliac crest. The pelvic instability is manifested by insufficiency fractures of the ilium and subluxation of the sacroiliac joints and pubic symphysis. (orig.)

  20. Visualization of Penile Suspensory Ligamentous System Based on Visible Human Data Sets

    Science.gov (United States)

    Chen, Xianzhuo; Wu, Yi; Tao, Ling; Yan, Yan; Pang, Jun; Zhang, Shaoxiang; Li, Shirong

    2017-01-01

    Background The aim of this study was to use a three-dimensional (3D) visualization technology to illustrate and describe the anatomical features of the penile suspensory ligamentous system based on the Visible Human data sets and to explore the suspensory mechanism of the penis for the further improvement of the penis-lengthening surgery. Material/Methods Cross-sectional images retrieved from the first Chinese Visible Human (CVH-1), third Chinese Visible Human (CVH-3), and Visible Human Male (VHM) data sets were used to segment the suspensory ligamentous system and its adjacent structures. The magnetic resonance imaging (MRI) images of this system were studied and compared with those from the Visible Human data sets. The 3D models reconstructed from the Visible Human data sets were used to provide morphological features of the penile suspensory ligamentous system and its related structures. Results The fundiform ligament was a superficial, loose, fibro-fatty tissue which originated from Scarpa’s fascia superiorly and continued to the scrotal septum inferiorly. The suspensory ligament and arcuate pubic ligament were dense fibrous connective tissues which started from the pubic symphysis and terminated by attaching to the tunica albuginea of the corpora cavernosa. Furthermore, the arcuate pubic ligament attached to the inferior rami of the pubis laterally. Conclusions The 3D model based on Visible Human data sets can be used to clarify the anatomical features of the suspensory ligamentous system, thereby contributing to the improvement of penis-lengthening surgery. PMID:28530218

  1. Our experience, technique and long-term outcomes in the management of posterior urethral strictures.

    Science.gov (United States)

    Singh, Amit; Panda, Shasanka Shekhar; Bajpai, Minu; Jana, Manisha; Baidya, Dalim Kumar

    2014-02-01

    To share our experience, technique and long-term outcomes in posterior urethral stricture management. Thirty-seven boys with post-traumatic posterior urethral stricture underwent resection and end-to-end anastomosis through pre-anal coronal approach or in combination with trans-pubic approach from January 2000 to December 2011. Follow up included symptomatic evaluation by micturating cystourethrogram and retrograde urethrogram in all patients, and urethroscopy in patients with voiding symptoms. Pre-anal coronal approach was used in 29 (78%) cases and in 8 (21%) cases it was combined with trans-pubic approach. In 33 (89.1%) patients it was first attempt, while in 4 (10.9%) it was redo surgery. Two patients required buccal mucosal graft to bridge the deficient urethra. Patient age was 5-17 years (mean 10.8 years). Mean follow up was 48.5 months (range 6-132 months). Thirty-two (86%) patients were symptom free. Failed repairs were successfully managed by urethral dilation in 3 and by redo urethroplasty in the remaining 2. All patients were continent. There was no chordee, penile shortening or urethral diverticula. Resection and end-to-end anastomosis of posterior urethral stricture is possible through pre-anal coronal incision; however, if slightest difficulty is envisaged in creating a satisfactory end-to-end anastomosis, extension to trans-pubic approach should be done. Copyright © 2013 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.

  2. Imaging of Groin Pain: Magnetic Resonance and Ultrasound Imaging Features.

    Science.gov (United States)

    Lee, Susan C; Endo, Yoshimi; Potter, Hollis G

    Evaluation of groin pain in athletes may be challenging as pain is typically poorly localized and the pubic symphyseal region comprises closely approximated tendons and muscles. As such, magnetic resonance imaging (MRI) and ultrasound (US) may help determine the etiology of groin pain. A PubMed search was performed using the following search terms: ultrasound, magnetic resonance imaging, sports hernia, athletic pubalgia, and groin pain. Date restrictions were not placed on the literature search. Clinical review. Level 4. MRI is sensitive in diagnosing pathology in groin pain. Not only can MRI be used to image rectus abdominis/adductor longus aponeurosis and pubic bone pathology, but it can also evaluate other pathology within the hip and pelvis. MRI is especially helpful when groin pain is poorly localized. Real-time capability makes ultrasound useful in evaluating the pubic symphyseal region, as it can be used for evaluation and treatment. MRI and US are valuable in diagnosing pathology in athletes with groin pain, with the added utility of treatment using US-guided intervention. Strength-of Recommendation Taxonomy: C.

  3. Estudo morfológico da sínfise púbica de ratos e camundongos durante a gravidez

    Directory of Open Access Journals (Sweden)

    Flávia da Ré Guerra

    2011-10-01

    Full Text Available The objective of this study was to assess the existing differences in the pubic symphysis of female rats and mice, pregnant and non pregnant, describing the morphological alterations occurred in the joint and understanding the movements shown during pregnancy. The pubic symphysis were collected from female pregnant mice on the 6th, 12th and 18th days of pregnancy, and from rats with 18 days of pregnancy. They were fixed in paraformoldehyde and following decalcificated with Morse's solution. The samples were then, included in paraffin. Seven micrometers slices were made and stained with Picrosirius and Resorcin-Fuchsin. The Picrosirius staining had shown, in virgin female mice, the presence of thick collagen fibers different from the other groups of mice, which presented thin fibers. The analysis of elastic fibers showed that, with the progress of pregnancy there is an increase in their thickness and number. In rats with 18 days of pregnancy, an appearance of fibrous conjunctive tissue on the hyaline cartilage disc was observed, enlarging the inter-pubic space and modifying the synchondrosis structure found in the virgin animals. It was also observed an increase in diameter and amount of elastic fibers comparing to virgin rats. We conclude that the pregnant female mice's joint undergoes transformations in structure, quality and amount during the pregnancy. In pregnant rats, besides the increase of elastic fibers and the distance between the hip's bone, the joint had differred by the appearance of fibrous conjunctive tissue, thus making the birth easier.

  4. A study of ectoparasites in wild rodents of the Jaz Murian area in the southeast of Iran

    Directory of Open Access Journals (Sweden)

    Asghar Khajeh

    2017-07-01

    Full Text Available Objective: To detect wild rodents ectoparasites in the southeast of Iran. Methods: In this survey, the wild rodents were trapped from 2014 to 2015. The captured rodents were checked for any ectoparasites. Results: In this study, 681 ectoparasites belonged to 6 species of flea, 2 species of lice, 1 species of mite and 2 species of hard tick were collected. The flea species were including, Xenopsylla gerbilli, Xenopsylla cheopis, Xenopsylla buxtoni, Xenopsylla conformis, Nosopsyllus medus and Amphipysylla spp., the lice species were including Hoplopleura spp. and Polyplax spp., the mite species was Ornithonyssus bacoti and tick species were Rhipicephalus spp. and Hyalomma spp. Conclusions: Among all ectoparasites, Hoplopleura spp. and Amphipysylla spp. had the high and low frequency infestation in rodents, respectively. Also among captured rodents, the highest ectoparasites infestation was found in Tatera indica and no ectoparasites in Apodemus witherbyi, Cricetelus migratorius, and Microtus mystacinus kermanesis.

  5. Confirmation of the identity of the type host of the louse Halipeurus fallacis (Phthiraptera: Philopteridae).

    Science.gov (United States)

    Palma, Ricardo L

    2018-04-09

    Alexander (1954: 489) recorded a petrel (Aves: Procellariiformes) captured alive on board a ship in the Indian Ocean by Mr W.W.A. Phillips who, after removing some lice, liberated it the following morning. Alexander (1954) identified that petrel as the species "Pterodroma aterrima Bonaparte", now placed in the genus Pseudobulweria. The lice were kept in the collection of the then British Museum (Natural History), now the Natural History Museum, London, England. Jouanin (1955) published a new species of petrel from the Indian Ocean as Bulweria fallax. Jouanin (1957: 19) discussed the identity of the petrel identified by Alexander (1954) as Pterodroma aterrima, stating that the descriptive data given by Alexander (1954) did not clearly fit either P. aterrima or B. fallax. However, considering the geographical coordinates where the bird was captured, Jouanin (1957) believed it was more likely Bulweria fallax.

  6. Prevalence of external parasites in the south eastern desert of Egypt.

    Science.gov (United States)

    el-Baky, S M

    2001-04-01

    External parasites in the triangle region (Halaib & Shalatin) affecting the animal health were studied. Ectoparasites were collected in several sites by using bait traps and directly from animal bodies. Results indicated the presence of twelve species of insects belonging to seven genera included in three families (Calliphoridae, Muscidae and Sarcophagidae). Concerning ectoparasites on animal bodies, there were two species of biting lice infested goats and sheep (Bovicola caprae and B. ovis, respectively) and two species of sucking lice on goats (Linognathus africanus and L. stenopsis). Melophagus ovinus (family Hippoboscidae) collected from goats. Moreover, all camels suffered infestation with hard ticks four Hyalomma species. On the other hand, sheep and goats were infested with two Rhipicephalus species and one Haemaphysalis species.

  7. Estudio microestructural de productos de reacción álcali-árido en hormigones curados a alta temperatura

    Directory of Open Access Journals (Sweden)

    Menéndez, Esperanza

    1993-12-01

    Full Text Available La degradación del hormigón, debida a la reacción expansiva llamada "reacción álcali-árido", ha sido ampliamente estudiada (1 y (2. Este fenómeno es especialmente relevante en países como Estados Unidos, Canadá, Brasil, etc., donde hay una gran cantidad de áridos con sílice reactiva.

  8. Comparison of phenothrin mousse, phenothrin lotion, and wet-combing for treatment of head louse infestation in the UK: a pragmatic randomised, controlled, assessor blind trial [v1; ref status: indexed, http://f1000r.es/1px

    Directory of Open Access Journals (Sweden)

    Ian F. Burgess

    2014-07-01

    Full Text Available In this investigation of effectiveness of an alternative pediculicide dosage form, we recruited 228 children and 50 adult participants from Bedfordshire, UK, to a randomised, controlled, assessor blind trial comparing two insecticide products with mechanical removal of lice as a control group.  Participants using insecticide were treated with either the investigative 0.5% phenothrin mousse, for 30 minutes, or 0.2% phenothrin lotion, for 2 hours as the reference product.  Both treatments were applied only once, followed by shampoo washing.  Those treated by wet-combing with conditioner were combed 4 times over 12 days.  Parents/carers carried out the treatments to mimic normal consumer use.  The outcome measure was the absence of lice, 14 days after treatment for the insecticides, and up to 14 days after completion of combing.  Intention to treat analysis of the outcomes for 275 participants showed success for phenothrin mousse in 21/105 (20.0%, in 23/107 (21.5% for phenothrin lotion, and in 12/63 (19.1% for wet-combing.  People receiving mousse were 1.07 (95% CI, 0.63 to 1.81 times more likely to still have lice after treatment compared with those treated with lotion. The group of participants who received the wet combing treatment were 1.13 (95% CI, 0.61 to 2.11 times more likely to still have lice after the treatment.  None of the treatments was significantly (p < 0.05 more effective than any other. This study was carried out in an area where moderate resistance to phenothrin was demonstrated after the study by using a bioassay.  Analysis of post treatment assessments found that failure of insecticides to kill louse eggs had influenced the outcome.

  9. A hitchhikers guide to the Galapagos: co-phylogeography of Galapagos mockingbirds and their parasites

    Czech Academy of Sciences Publication Activity Database

    Štefka, Jan; Hoeck, P.E.A.; Keller, L. F.; Smith, V. S.

    2011-01-01

    Roč. 11, - (2011), e284 ISSN 1471-2148 Grant - others:GA ČR(CZ) GA206/08/1019 Institutional research plan: CEZ:AV0Z60220518 Keywords : MULTILOCUS GENOTYPE DATA * DNA POLYMORPHISM DATA * POPULATION-STRUCTURE * MITOCHONDRIAL-DNA * LICE INSECTA * PHYLOGENETIC ANALYSIS * MAXIMUM-LIKELIHOOD * HOST-SPECIFICITY * DARWINS FINCHES * SPECIES TREES Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 3.521, year: 2011

  10. Insects as emission-related pests. [Sacchiphantes abietis L

    Energy Technology Data Exchange (ETDEWEB)

    Wentzel, K F

    1965-01-01

    Hydrofluoric acid emissions from a brick kiln severely damaged young spruce forests in the vicinity of the kilns. Six years after start-up of the factory, the affected trees we also strongly affected by spruce gall lice (Sacchiphantes abietis L.). A close relationship was found between the degree of damage to the trees and gall infection. The highest infection stage (500-2000 galls/young spruce) occurred in the most severely damaged regions.

  11. Genomic characterization and phylogenetic position of two new species in Rhabdoviridae infecting the parasitic copepod, salmon louse (Lepeophtheirus salmonis).

    Science.gov (United States)

    Økland, Arnfinn Lodden; Nylund, Are; Øvergård, Aina-Cathrine; Blindheim, Steffen; Watanabe, Kuninori; Grotmol, Sindre; Arnesen, Carl-Erik; Plarre, Heidrun

    2014-01-01

    Several new viruses have emerged during farming of salmonids in the North Atlantic causing large losses to the industry. Still the blood feeding copepod parasite, Lepeophtheirus salmonis, remains the major challenge for the industry. Histological examinations of this parasite have revealed the presence of several virus-like particles including some with morphologies similar to rhabdoviruses. This study is the first description of the genome and target tissues of two new species of rhabdoviruses associated with pathology in the salmon louse. Salmon lice were collected at different Atlantic salmon (Salmo salar) farming sites on the west coast of Norway and prepared for histology, transmission electron microscopy and Illumina sequencing of the complete RNA extracted from these lice. The nearly complete genomes, around 11,600 nucleotides encoding the five typical rhabdovirus genes N, P, M, G and L, of two new species were obtained. The genome sequences, the putative protein sequences, and predicted transcription strategies for the two viruses are presented. Phylogenetic analyses of the putative N and L proteins indicated closest similarity to the Sigmavirus/Dimarhabdoviruses cluster, however, the genomes of both new viruses are significantly diverged with no close affinity to any of the existing rhabdovirus genera. In situ hybridization, targeting the N protein genes, showed that the viruses were present in the same glandular tissues as the observed rhabdovirus-like particles. Both viruses were present in all developmental stages of the salmon louse, and associated with necrosis of glandular tissues in adult lice. As the two viruses were present in eggs and free-living planktonic stages of the salmon louse vertical, transmission of the viruses are suggested. The tissues of the lice host, Atlantic salmon, with the exception of skin at the attachment site for the salmon louse chalimi stages, were negative for these two viruses.

  12. Genomic Characterization and Phylogenetic Position of Two New Species in Rhabdoviridae Infecting the Parasitic Copepod, Salmon Louse (Lepeophtheirus salmonis)

    Science.gov (United States)

    Økland, Arnfinn Lodden; Nylund, Are; Øvergård, Aina-Cathrine; Blindheim, Steffen; Watanabe, Kuninori; Grotmol, Sindre; Arnesen, Carl-Erik; Plarre, Heidrun

    2014-01-01

    Several new viruses have emerged during farming of salmonids in the North Atlantic causing large losses to the industry. Still the blood feeding copepod parasite, Lepeophtheirus salmonis, remains the major challenge for the industry. Histological examinations of this parasite have revealed the presence of several virus-like particles including some with morphologies similar to rhabdoviruses. This study is the first description of the genome and target tissues of two new species of rhabdoviruses associated with pathology in the salmon louse. Salmon lice were collected at different Atlantic salmon (Salmo salar) farming sites on the west coast of Norway and prepared for histology, transmission electron microscopy and Illumina sequencing of the complete RNA extracted from these lice. The nearly complete genomes, around 11 600 nucleotides encoding the five typical rhabdovirus genes N, P, M, G and L, of two new species were obtained. The genome sequences, the putative protein sequences, and predicted transcription strategies for the two viruses are presented. Phylogenetic analyses of the putative N and L proteins indicated closest similarity to the Sigmavirus/Dimarhabdoviruses cluster, however, the genomes of both new viruses are significantly diverged with no close affinity to any of the existing rhabdovirus genera. In situ hybridization, targeting the N protein genes, showed that the viruses were present in the same glandular tissues as the observed rhabdovirus-like particles. Both viruses were present in all developmental stages of the salmon louse, and associated with necrosis of glandular tissues in adult lice. As the two viruses were present in eggs and free-living planktonic stages of the salmon louse vertical, transmission of the viruses are suggested. The tissues of the lice host, Atlantic salmon, with the exception of skin at the attachment site for the salmon louse chalimi stages, were negative for these two viruses. PMID:25402203

  13. To License or Not to License Revisited: An Examination of State Statutes Regarding Private Investigators and Digital Examiners

    OpenAIRE

    Thomas Lonardo; Doug White; Alan Rea

    2009-01-01

    In this update to the previous year's study, the authors examine statutes that regulate, license, and enforce investigative functions in each US state. After identification and review of Private Investigator licensing requirements, the authors find that very few state statutes explicitly differentiate between Private Investigators and Digital Examiners. After contacting all state agencies the authors present a distinct grouping organizing state approaches to professional Digital Examiner lice...

  14. Human Dipylidiasis: A Case Report of Dipylidium caninum Infection from Karimnagar

    OpenAIRE

    KV Ramana; Sanjeev D Rao; Ratna Rao; SK Mohanty; CG Wilson

    2011-01-01

    Dipylidium caninum also refered to as the double-pored tapeworm is a cyclophyllidean cestode that commonly infects dogs and cats. Mammals act as definite hosts with intermediate hosts being dog and cat flea, the Ctenocephalides canis and Ctenocephalides catis respectively. The dog lice, Trichodectes canis and human flea (Pulex irritans) also transmit Dipylidium caninum infection. Infants and young children are at high risk of acquiring infection. Majority of the infections are due to close as...

  15. First case of Trichodectes pinguis (Phthiraptera: Ischnocera: Trichodectidae) on a Bear (Ursus arctos) in Turkey.

    Science.gov (United States)

    Dik, Bilal; Orunç Kılınç, Özlem

    2015-12-01

    This study was conducted to provide morphological characters of Trichodectes pinguis Burmeister, 1838 that was found on a European brown bear (Ursus arctos Linnaeus) that was found injured in the Van province, eastern Turkey. Three lice specimens were collected from the bear, and they were identified as T. pinguis. The morphological characteristics of this species were provided in this study. T. pinguis was reported for the first time in Turkey.

  16. Problemy zdrowotne osób bezdomnych

    OpenAIRE

    Mirczak, Anna

    2014-01-01

    Homelessness is a major problem in both developing and wealthy countries and affects a wide range of people including families and children. Homeless people are at increased risk of dying prematurely compared with the general population and suffer from a wide range of health problems include: infectious diseases (HIV, hepatitis C, tuberculosis), hypertension, diabetes, musculoskeletal disorders, substance abuse (alcoholism), mental illness, foot problems and skin diseases (scabies, lice). Des...

  17. Evaluation of emamectin benzoate for the control of experimentally induced infestations of Argulus sp. in goldfish and koi carp.

    Science.gov (United States)

    Hanson, Shari K; Hill, Jeffrey E; Watson, Craig A; Yanong, Roy P E; Endris, Richard

    2011-03-01

    The effect of 0.2% emamectin benzoate (SLICE; Intervet/ Schering-Plough Animal Health, Roseland, New Jersey) administered in top-dressed, pelleted commercial fish feed was evaluated for control of freshwater Argulus sp. in goldfish Carassius auratus and koi carp, a variant of common carp Cyprinus carpio, in freshwater aquaria at 24-25 degrees C. Sixteen individually housed goldfish were each exposed to 37 Argulus. The number of fish lice attached to each fish at the start of the experiment was not determined; however, the total number of motile fish lice in each aquarium (on fish and in the water) was determined at the start and end of each experiment. Eight goldfish were fed the control diet (0 microg x kg fish biomass(-1) x d(-1)) and eight were fed the medicated diet (50 microg x kg fish biomass(-1) x d(-1)) for seven consecutive days. After treatment, fish louse infestation in controls was 20.5 +/- 1.5 (mean +/- SE) lice per fish. No Argulus were found on fish in the treated group. In a separate experiment, 10 individually housed koi were each exposed to 128 Argulus. Five koi were fed the control diet and five were fed a low-dose medicated diet (5 microg x kg fish biomass(-1) x d(-1)) for 7 d. After treatment, fish louse infestation among the controls was 14.6 +/- 3.8 lice per koi. No Argulus were found on koi in the treated group. Hence, a 7-d regimen of oral emamectin benzoate controlled experimental infestation of Argulus when administered to goldfish at 50 microg x kg fish biomass(-1) x d(-1) and to koi at 5 microg x kg fish biomass(-1) x d(-1).

  18. Identification of a sex-linked SNP marker in the salmon louse (Lepeophtheirus salmonis using RAD sequencing.

    Directory of Open Access Journals (Sweden)

    Stephen N Carmichael

    Full Text Available The salmon louse (Lepeophtheirus salmonis (Krøyer, 1837 is a parasitic copepod that can, if untreated, cause considerable damage to Atlantic salmon (Salmo salar Linnaeus, 1758 and incurs significant costs to the Atlantic salmon mariculture industry. Salmon lice are gonochoristic and normally show sex ratios close to 1:1. While this observation suggests that sex determination in salmon lice is genetic, with only minor environmental influences, the mechanism of sex determination in the salmon louse is unknown. This paper describes the identification of a sex-linked Single Nucleotide Polymorphism (SNP marker, providing the first evidence for a genetic mechanism of sex determination in the salmon louse. Restriction site-associated DNA sequencing (RAD-seq was used to isolate SNP markers in a laboratory-maintained salmon louse strain. A total of 85 million raw Illumina 100 base paired-end reads produced 281,838 unique RAD-tags across 24 unrelated individuals. RAD marker Lsa101901 showed complete association with phenotypic sex for all individuals analysed, being heterozygous in females and homozygous in males. Using an allele-specific PCR assay for genotyping, this SNP association pattern was further confirmed for three unrelated salmon louse strains, displaying complete association with phenotypic sex in a total of 96 genotyped individuals. The marker Lsa101901 was located in the coding region of the prohibitin-2 gene, which showed a sex-dependent differential expression, with mRNA levels determined by RT-qPCR about 1.8-fold higher in adult female than adult male salmon lice. This study's observations of a novel sex-linked SNP marker are consistent with sex determination in the salmon louse being genetic and following a female heterozygous system. Marker Lsa101901 provides a tool to determine the genetic sex of salmon lice, and could be useful in the development of control strategies.

  19. Genomic characterization and phylogenetic position of two new species in Rhabdoviridae infecting the parasitic copepod, salmon louse (Lepeophtheirus salmonis.

    Directory of Open Access Journals (Sweden)

    Arnfinn Lodden Økland

    Full Text Available Several new viruses have emerged during farming of salmonids in the North Atlantic causing large losses to the industry. Still the blood feeding copepod parasite, Lepeophtheirus salmonis, remains the major challenge for the industry. Histological examinations of this parasite have revealed the presence of several virus-like particles including some with morphologies similar to rhabdoviruses. This study is the first description of the genome and target tissues of two new species of rhabdoviruses associated with pathology in the salmon louse. Salmon lice were collected at different Atlantic salmon (Salmo salar farming sites on the west coast of Norway and prepared for histology, transmission electron microscopy and Illumina sequencing of the complete RNA extracted from these lice. The nearly complete genomes, around 11,600 nucleotides encoding the five typical rhabdovirus genes N, P, M, G and L, of two new species were obtained. The genome sequences, the putative protein sequences, and predicted transcription strategies for the two viruses are presented. Phylogenetic analyses of the putative N and L proteins indicated closest similarity to the Sigmavirus/Dimarhabdoviruses cluster, however, the genomes of both new viruses are significantly diverged with no close affinity to any of the existing rhabdovirus genera. In situ hybridization, targeting the N protein genes, showed that the viruses were present in the same glandular tissues as the observed rhabdovirus-like particles. Both viruses were present in all developmental stages of the salmon louse, and associated with necrosis of glandular tissues in adult lice. As the two viruses were present in eggs and free-living planktonic stages of the salmon louse vertical, transmission of the viruses are suggested. The tissues of the lice host, Atlantic salmon, with the exception of skin at the attachment site for the salmon louse chalimi stages, were negative for these two viruses.

  20. Účetnictví bytových družstev

    OpenAIRE

    FLEISCHMANNOVÁ, Petra

    2011-01-01

    The aim of this thesis is to define the specifics of accounting treatment management and maintenance of housing stock and related activities in the housing cooperative. I chose two small housing cooperatives in Domažlice, where I have outlined particular specifics: accounting of services and rent, purchase of cooperative property, conversion of apartments into personal ownership, maintenance and technical improvements in residential buildings and the financial statements.