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Sample records for assess spontaneous hand

  1. Validity and reliability of the VOAA-DDD to assess spontaneous hand use with a video observation tool in children with spastic unilateral cerebral palsy

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    Geerdink Yvonne A

    2009-11-01

    Full Text Available Abstract Background In 2003 new computer software, the VOAA (Video Observations Aarts and Aarts, was designed to score and evaluate two important aspects of spontaneous upper limb use, i.e. overall duration and frequency of specific behaviours. The aim of this study was to investigate the test-retest, interrater and intrarater reliability and the construct validity of a new module, the VOAA-DDD, to determine developmental disregard in children with spastic unilateral cerebral palsy (CP. Methods A test-retest design with three raters for reliability and a two-group design for construct validity were used. Subjects were a total of 20 children with spastic unilateral CP equally divided in two age groups (2.5-5 and 5-8 years, and 56 healthy children of the same age groups. Overall duration and frequency of specific behaviours of the affected arm and hand were assessed during a task demanding ('stringing beads' and a task stimulating ('decorating a muffin' the use of both hands. Reliability was estimated by intraclass correlation coefficients (ICCs. Construct validity was assessed by comparing children with CP to healthy children. Results All ICCs exceeded 0.87. In contrast with healthy children, children with CP used their affected hand less during the 'muffin' task compared to the 'beads' task. Of the children with CP, 90% in the age group of 2.5-5 years and 50% in the age group of 5-8 years showed values exceeding the extreme values of healthy controls, respectively, indicating developmental disregard. Conclusion The VOAA-DDD is a reliable and valid instrument to assess spontaneous use of the affected arm and hand in order to determine developmental disregard in children with spastic unilateral CP.

  2. SPONTANEOUS TUMORS IN MICE EXPOSED TO CIGARETTE SECOND-HAND SMOKE

    OpenAIRE

    Tume, L.F.

    2014-01-01

    Cigarette smoke inhaled second-hand is common with different types of cigarettes and can lead to an increased risk of developing tumors if the frequency is constant. In this experiment a group of four individuals (Mus musculus) were exposed to second-handcigarettesmoke three times a week for four months; later the occurrence of spontaneous tumors was observed in contrast to the control group. This study provides further evidence that second-hand cigarette smoke has components t...

  3. Spontaneous CP violation in the 3-3-1 model with right-handed neutrinos

    OpenAIRE

    Doff, A.(Universidade Tecnológica Federal do Paraná – UTFPR – DAFIS, Av. Monteiro Lobato Km 04, 84016-210 Ponta Grossa, PR, Brazil); Pires, C. A. de S.; da Silva, P. S. Rodrigues

    2006-01-01

    We implement the mechanism of spontaneous CP violation in the 3-3-1 model with right-handed neutrinos and recognize their sources of CP violation. Our main result is that the mechanism works already in the minimal version of the model and new sources of CP violation emerges as an effect of new physics at energies higher than the electroweak scale.

  4. Spontaneous movements of hands in gradients of weak VHF electromagnetic fields

    OpenAIRE

    Huttunen, P.

    2012-01-01

    Abstract The aims of the present study were to clarify the antenna function and radio frequency radiation (RFR) sensitivity of human subjects using theoretical calculations and field tests. The weak very high frequency (VHF) electromagnetic fields and spontaneous hand movements were recorded. Groups of university students, other volunteers and as a very interesting group, experienced well finders, were used as test subjects. The VHF field was studied using a spectrum analyser and tuneable...

  5. Assessment of the hand in cerebral palsy

    OpenAIRE

    Praveen Bhardwaj; S Raja Sabapathy

    2011-01-01

    Cerebral palsy is the musculoskeletal manifestation of a nonprogressive central nervous system lesion that usually occurs due to a perinatal insult to the brain. Though the cerebral insult is static the musculoskeletal pathology is progressive. Some patients with cerebral palsy whose hands are affected can be made better by surgery. The surgical procedures as such are not very technically demanding but the assessment, decision-making, and selecting the procedures for the given patient make th...

  6. Good and bad in the hands of politicians: spontaneous gestures during positive and negative speech.

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    Daniel Casasanto

    Full Text Available BACKGROUND: According to the body-specificity hypothesis, people with different bodily characteristics should form correspondingly different mental representations, even in highly abstract conceptual domains. In a previous test of this proposal, right- and left-handers were found to associate positive ideas like intelligence, attractiveness, and honesty with their dominant side and negative ideas with their non-dominant side. The goal of the present study was to determine whether 'body-specific' associations of space and valence can be observed beyond the laboratory in spontaneous behavior, and whether these implicit associations have visible consequences. METHODOLOGY AND PRINCIPAL FINDINGS: We analyzed speech and gesture (3012 spoken clauses, 1747 gestures from the final debates of the 2004 and 2008 US presidential elections, which involved two right-handers (Kerry, Bush and two left-handers (Obama, McCain. Blind, independent coding of speech and gesture allowed objective hypothesis testing. Right- and left-handed candidates showed contrasting associations between gesture and speech. In both of the left-handed candidates, left-hand gestures were associated more strongly with positive-valence clauses and right-hand gestures with negative-valence clauses; the opposite pattern was found in both right-handed candidates. CONCLUSIONS: Speakers associate positive messages more strongly with dominant hand gestures and negative messages with non-dominant hand gestures, revealing a hidden link between action and emotion. This pattern cannot be explained by conventions in language or culture, which associate 'good' with 'right' but not with 'left'; rather, results support and extend the body-specificity hypothesis. Furthermore, results suggest that the hand speakers use to gesture may have unexpected (and probably unintended communicative value, providing the listener with a subtle index of how the speaker feels about the content of the co

  7. Assessment of the hand in cerebral palsy

    Directory of Open Access Journals (Sweden)

    Praveen Bhardwaj

    2011-01-01

    Full Text Available Cerebral palsy is the musculoskeletal manifestation of a nonprogressive central nervous system lesion that usually occurs due to a perinatal insult to the brain. Though the cerebral insult is static the musculoskeletal pathology is progressive. Some patients with cerebral palsy whose hands are affected can be made better by surgery. The surgical procedures as such are not very technically demanding but the assessment, decision-making, and selecting the procedures for the given patient make this field challenging. When done well, the results are rewarding not only in terms of improvement in hand function but also in appearance and personal hygiene, which leads to better self-image and permits better acceptance in the society. This article focuses on the clinical examination, patient selection, and decision-making while managing these patients.

  8. Electromagnetic-field quantization and spontaneous decay in left-handed media

    International Nuclear Information System (INIS)

    We present a quantization scheme for the electromagnetic field interacting with atomic systems in the presence of dispersing and absorbing magnetodielectric media, including left-handed material having negative real part of the refractive index. The theory is applied to the spontaneous decay of a two-level atom at the center of a spherical free-space cavity surrounded by magnetodielectric matter of overlapping band-gap zones. Results for both big and small cavities are presented, and the problem of local-field corrections within the real-cavity model is addressed

  9. Assessment of hand hygiene levels among healthcare professionals in India

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    Rameswarapu, Rohin; K, Surendranath Sai; Valsangkar, Sameer

    2015-01-01

    IntroductionHand hygiene, either by hand disinfection or hand washing remains to be most pivotal in controlling infection in healthcare settings. Simple preventive measures have been proven effective to contain infections. The exiguity on studies done in healthcare settings in India has galvanized us to undertake this study on hand hygiene assessment among nurses in a healthcare setting in IndiaMaterials and methodsA cross sectional study was done in one of leading organization in preventive ...

  10. Using the intact hand for objective assessment of phantom hand-perception.

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    Sumitani, Masahiko; Yozu, Arito; Tomioka, Toshiya; Yamada, Yoshitsugu; Miyauchi, Satoru

    2010-03-01

    After amputation, most patients experience a phenomenon known as a phantom limb (PL). A variety of PL experiences appear to be associated with neural plasticity within the CNS. However, due to the subjective nature of PL experiences, there was no definitive way to reliably assess PL experiences other than using patients' direct reports. Here, we were able to obtain patients' indirect responses to PL experiences, for a more objective evaluation. First, we conducted a study with normals and 17 non-PL patients experiencing pathological pain in one hand. We took digital photographs of their affected and unaffected hands, altered the sizes of the images digitally, and then asked each subject to choose the image that most closely matched the actual size of their own hands (from a series of images presented on a video screen). Subjective size perceptions of the hands were homologous, regardless of the pathological condition of one hand (pphantom hand. The intact hand-size perception was linearly correlated with phantom hand-size perception (weighted linear regression analysis: pneural mechanisms involved. PMID:19477667

  11. A quantitative assessment method for Ascaris eggs on hands

    DEFF Research Database (Denmark)

    Jeandron, Aurelie; Ensink, Jeroen H. J.; Thamsborg, Stig Milan;

    2014-01-01

    The importance of hands in the transmission of soil transmitted helminths, especially Ascaris and Trichuris infections, is under-researched. This is partly because of the absence of a reliable method to quantify the number of eggs on hands. Therefore, the aim of this study was to develop a method...... with Ascaris eggs and of their role in human infection. Follow-up studies are needed that validate the hand washing method under field conditions, e.g. including people of different age, lower levels of contamination and various levels of hand cleanliness....... to assess the number of Ascaris eggs on hands and determine the egg recovery rate of the method. Under laboratory conditions, hands were seeded with a known number of Ascaris eggs, air dried and washed in a plastic bag retaining the washing water, in order to determine recovery rates of eggs for four...

  12. Assessment of hand hygiene compliance after hand hygiene education among health care workers in Cambodia.

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    Sansam, Sim; Yamamoto, Eiko; Srun, Sok; Sinath, Yin; Moniborin, Mey; Bun Sim, Kheang; Reyer, Joshua A; Yoshida, Yoshitoku; Hamajima, Nobuyuki

    2016-05-01

    Health care-associated infection (HCAI) is the most frequent adverse event for hospitalized patients. Hand hygiene is a simple and effective solution to protect patients from HCAI. This study aimed to introduce hand hygiene to health care workers based on the World Health Organization guideline for reducing HCAI in Cambodia and to assess their behavioral patterns on hand hygiene. All health care workers at Kampong Cham provincial hospital had lectures and practice on hand hygiene in January 2012. The surveys for hand hygiene compliance (HHC) were performed after 6 months, 1 year and 2 years, respectively. The number of surgical site infections (SSI) was counted in 2011 and 2014. Our analysis used the data of 58 workers, who were observed at all three points, although 139 workers were observed during the study period. The average of HHC at 6 months, 1 year and 2 years were 62.37%, 85.76% and 80.36%, respectively. The improved group (HHC 2 years/1 year≧1) had 32 workers, whereas the worsened group (HHC 2 years/1 yearsex, age or occupations. The improved group had more workers of General (31.2% vs. 19.2%), Surgical (25.0% vs. 11.5%) and Infection (21.9% vs. 11.5%) categories compared to the worsened group. The incidence of SSI was improved from 32.26% in 2011 to 0.97% in 2014. Our results suggest that the education and the survey on hand hygiene are effective for reducing HCAI in Cambodia. PMID:27303102

  13. Spontaneous Ultra-Weak Photon Emission from Human Hands Is Time Dependent

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    R. V. Wijk

    2007-06-01

    Full Text Available Ultra-weak photon emission in the visible range was measured on palm and dorsal side of left and right hand by means of a low noise photomultiplier system. To study the dynamics of this photon emission in a 24 h period photon emission was recorded in 2 h intervals in 5 experiments, utilizing strict protocols for dark adaptation and recording of subjects. Fluctuations in photon emission in the course of 24 h period were demonstrated for each anatomic location. Mean photon emission over the 24 h period differed both between subjects and hand locations. To detect a pattern in the fluctuations the mean value for each location of each subject in each experiment was utilized to calculate fluctuations during the course of 24 h for each anatomical location. The fluctuations in photon emission in the course of 24 h were more at dorsal sides than palm sides. The correlation between fluctuations in palm and dorsal side was not apparent. During the 24 h period a change in left-right symmetry occurred for the dorsal side but not for the palm of the hands. Photon emission at the left dorsal location was high at night, while the right dorsal side emitted most during the day. It is concluded that a daily rhythm in photon emission can be recorded from both the dorsal and palm sides of the hands.

  14. Digital tomosynthesis of hand joints for arthritis assessment

    International Nuclear Information System (INIS)

    The two principal forms of hand arthritis, rheumatoid arthritis (RA) and osteoarthritis (OA) have large clinical and economic costs. Radiography has been shown to be a useful tool to assess the condition of the disease. A hand radiograph, however, is a two-dimensional projection of a three-dimensional object. In this report we present the results of a study that applied digital tomosynthesis to hand radiography in order to extract three-dimensional outcome measures that should be more sensitive to arthritis progression. The study was performed using simulated projection radiographs created using micro computed tomography (μCT) and a set of five dry-bone hand skeletons. These simulated projection images were then reconstructed into tomographic slices using the matrix inversion tomosynthesis (MITS) algorithm. The accuracy of the tomosynthesis reconstruction was evaluated by comparing the reconstructed images to a gold standard created using the μCT data. A parameter from image registration science, normalized mutual information, provided a quantifiable figure of merit. This study examined the effects of source displacement, number of reconstructed planes, number of acquisitions, noise added to the gray scale images, and errors in the location of a fiducial marker. We also optimized the reconstruction as a function of two variables k and α, that controlled the mixing of MITS with conventional shift-and-add tomosynthesis. A study using hand delineated joint margins demonstrated that MITS images provided a better measurement of average joint space width. We found good agreement between the MITS slices and the true planes. Both joint margins and trabecular structure were visible and the reconstructed slices showed additional structures not visible with the standard projection image. Using hand-delineated joint margins we compared the average joint space width of the gold standard slices to the MITS and projection images. A root-mean square deviation (RMSD), calculated

  15. Assessment of a Novel Anti-Aging Hand Cream.

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    Schlessinger, Joel; Saxena, Subhash; Mohr, Stuart

    2016-04-01

    There are few creams that have been developed for the purpose of treating the aging hand, yet UV damage and secondary signs of aging on the hands make them one of the most obvious indicators of age outside the face. This study documents results of a 120 day trial using a novel cream preparation containing ingredients including Retinol, Alpha-Arbutin, Kojic Dipalmitate, Azaeleic Acid, Hexylresorcinol, Licorice Root, and other ingredients. Results were tabulated comparing physician and patient assessment scores using a comprehensive scoring assay, which showed significant improvements across eight parameters tested. This was statistically significant for physician ratings of texture, wrinkles and pigment at 120 days versus baseline (P J Drugs Dermatol. 2016;15(4):496-503. PMID:27050706

  16. Statistical analysis of the spontaneously emitted photon signals from palm and dorsal sides of both hands in human subjects.

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    Van Wijk, Eduard P A; Wijk, Roeland Van; Bajpai, Rajendra P; van der Greef, Jan

    2010-06-01

    Photon signals emitted spontaneously from dorsal and palm sides of both hands were recorded using 6000 time windows of size T=50 ms in 50 healthy human subjects. These photon signals demonstrated universal behaviour by variance and mean. The data sets for larger time windows up to T=50s were obtained by merging the data recorded with T=50 ms. The behaviour of Fano factor regarding different window sizes was investigated. The Fano factor hovered around one in signals up to T=3s and increased slowly with the increase in window size. This indicated super-Poissonian distribution of photo counts. The Fano factor curve F(T) obtained by averaging all subjects and locations had a characteristic shape. Data suggest that the shape is essentially a combination of a smaller sub-population of individuals with sub-Poissonian and a larger sub-population with predominantly super-Poissonian photo count distribution. Averaging the data obtained by randomly shuffling observed data sets was flat and did not show any structure with T. The same applied both to the observed background data sets and the data sets obtained by randomly shuffling background in 50 measurements. The Fano factor was also flat in 50 measurements documented both by a standard LED as well as its shuffled data sets. The structure in the shape F(T) is characteristic of human signals. It may contain valuable information about metabolic processes and may have diagnostic relevance. PMID:20417114

  17. Signal Processing Methods for Liquid Rocket Engine Combustion Spontaneous Stability and Rough Combustion Assessments

    Science.gov (United States)

    Kenny, R. Jeremy; Casiano, Matthew; Fischbach, Sean; Hulka, James R.

    2012-01-01

    Liquid rocket engine combustion stability assessments are traditionally broken into three categories: dynamic stability, spontaneous stability, and rough combustion. This work focuses on comparing the spontaneous stability and rough combustion assessments for several liquid engine programs. The techniques used are those developed at Marshall Space Flight Center (MSFC) for the J-2X Workhorse Gas Generator program. Stability assessment data from the Integrated Powerhead Demonstrator (IPD), FASTRAC, and Common Extensible Cryogenic Engine (CECE) programs are compared against previously processed J-2X Gas Generator data. Prior metrics for spontaneous stability assessments are updated based on the compilation of all data sets.

  18. Computed tomography in the assessment of idiopathic spontaneous pneumothorax

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    Kim, Sang Jin; Lee, Doo Yun; Kim, Hyung Jung [Yonsei University College of Medicine, Seoul (Korea, Republic of)

    1991-07-15

    It is well known that idiopathic spontaneous pneumothorax is caused by rupture of the subpleural bleb and presents difficulty in exact detection and localization of the bleb with plain chest X - ray alone. The authors performed chest CT scans for accurate diagnosis of bleb that would act as a guide for optimal management of idiopathic spontaneous pneumothorax patients in order to prevent recurrent pneumothorax. We could detect blebs in 93 % (26/28) of the patients with idiopathic spontaneous pneumothorax, and 68 % (19/ 28) of the patient had bilateral blebs. Sensitivity was 0.63, and false negative was 37% (37/100) of the blebs, and 51% (19/37) of these 37 false negative cases were ruptured blebs. Only 7 % (2/28) of the patients had a single bleb. The authors concluded that CT is a useful method of study for optimal management of idiopathic spontaneous pneumothorax patients.

  19. Computed tomography in the assessment of idiopathic spontaneous pneumothorax

    International Nuclear Information System (INIS)

    It is well known that idiopathic spontaneous pneumothorax is caused by rupture of the subpleural bleb and presents difficulty in exact detection and localization of the bleb with plain chest X - ray alone. The authors performed chest CT scans for accurate diagnosis of bleb that would act as a guide for optimal management of idiopathic spontaneous pneumothorax patients in order to prevent recurrent pneumothorax. We could detect blebs in 93 % (26/28) of the patients with idiopathic spontaneous pneumothorax, and 68 % (19/ 28) of the patient had bilateral blebs. Sensitivity was 0.63, and false negative was 37% (37/100) of the blebs, and 51% (19/37) of these 37 false negative cases were ruptured blebs. Only 7 % (2/28) of the patients had a single bleb. The authors concluded that CT is a useful method of study for optimal management of idiopathic spontaneous pneumothorax patients

  20. Assessment and utilization of spontaneous sport mutant of grape

    International Nuclear Information System (INIS)

    The spontaneous sport mutant of Fujiminori was discovered in grape garden of Xiaying county at Ningbo city in 1993. The biological, botanical characteristics and fruit quality trait (such as total soluble solid, titratable acid, total water soluble sugar, reducing sugar, free Vc, organic acid and aroma etc.) of the mutant were continuously investigated from 1994 to 1999. The results showed that the sport mutant grew more vigorously, having multiple-bearing capacity in the year cycle. Fruit quality determination demonstrated that total soluble sugar, reducing sugar, soluble solids content and aroma contents of the mutant were higher than those of maternal plant in different degree, while titratable acid content of mutant was deceased. Meanwhile, it was also found that the berries of mutant are firmer and have longer storage life. The RAPD analysis of the genomic DNAs extracted from the young leaves of the spontaneous sport mutant indicated that there were some differential bands in the PCR amplified products using the arbitrary primers, which indicated the genotype diversity happened in the spontaneous mutation of grape.The mutant had been successfully developed the new grape variety named as 'Yongyou No. 1' via selection breeding method. The variety was approved by Ningbo Science and Technology Bureau in 1999 and was rapidly planted at other regions, such as Fenghua County, Yuyao County, Cixi County, Ninghai County, Shaoxing City, Jiaxing City and Hangzhou City, etc. Due to its high quality and productivity, it exhibits the extensive application potential in the future. (author)

  1. Disturbances in body ownership in schizophrenia: evidence from the rubber hand illusion and case study of a spontaneous out-of-body experience.

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    Katharine N Thakkar

    Full Text Available A weakened sense of self may contribute to psychotic experiences. Body ownership, one component of self-awareness, can be studied with the rubber hand illusion (RHI. Watching a rubber hand being stroked while one's unseen hand is stroked synchronously can lead to a sense of ownership over the rubber hand, a shift in perceived position of the real hand, and a limb-specific drop in stimulated hand temperature. We aimed to assess the RHI in schizophrenia using quantifiable measures: proprioceptive drift and stimulation-dependent changes in hand temperature.The RHI was elicited in 24 schizophrenia patients and 21 matched controls by placing their unseen hand adjacent to a visible rubber hand and brushing real and rubber hands synchronously or asynchronously. Perceived finger location was measured before and after stimulation. Hand temperature was taken before and during stimulation. Subjective strength of the illusion was assessed by a questionnaire.Across groups, the RHI was stronger during synchronous stimulation, indicated by self-report and proprioceptive drift. Patients reported a stronger RHI than controls. Self-reported strength of RHI was associated with schizotypy in controls Proprioceptive drift was larger in patients, but only following synchronous stimulation. Further, we observed stimulation-dependent changes in skin temperature. During right hand stimulation, temperature dropped in the stimulated hand and rose in the unstimulated hand. Interestingly, induction of RHI led to an out-of-body experience in one patient, linking body disownership and psychotic experiences.The RHI is quantitatively and qualitatively stronger in schizophrenia. These findings suggest that patients have a more flexible body representation and weakened sense of self, and potentially indicate abnormalities in temporo-parietal networks implicated in body ownership. Further, results suggest that these body ownership disturbances might be at the heart of a subset of

  2. Spontaneous remission in canine myasthenia gravis: implications for assessing human MG therapies.

    Science.gov (United States)

    Shelton, G D; Lindstrom, J M

    2001-12-11

    The natural course of autoimmune canine MG was determined in 53 dogs with muscular weakness and a positive acetylcholine receptor antibody titer. Dogs were treated with anticholinesterase therapy, without immunosuppression. Spontaneous clinical and immunologic remission occurred in 47 of 53 dogs within an average of 6.4 months. Neoplasia was identified in the six dogs that did not spontaneously remit. This study questions the value of using canine MG in studies designed to assess the effect of immunotherapies. PMID:11739846

  3. Assessment of Intelligibility Using Children's Spontaneous Speech: Methodological Aspects

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    Lagerberg, Tove B.; Åsberg, Jakob; Hartelius, Lena; Persson, Christina

    2014-01-01

    Background: Intelligibility is a speaker's ability to convey a message to a listener. Including an assessment of intelligibility is essential in both research and clinical work relating to individuals with communication disorders due to speech impairment. Assessment of the intelligibility of spontaneous speech can be used as an overall…

  4. Assessment of Relationship between Spontaneous Abortion and Occupational Exposure to Organic Solvents

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    S Mohammadi

    2011-04-01

    Full Text Available Introduction & Objective: Nowadays, some studies indicate the adverse effects of exposure to chemicals, especially organic solvents on the reproductive system of females. This study aimed to assess the relationship between spontaneous abortion with occupational exposure to organic solvents in pharmaceutical industry. Materials & Methods: This is a cross-sectional and descriptive-analytical study which was carried out in 2010 in one of the pharmaceutical factories located in the suburbs of Tehran. During the study, married women who were working in the factory laboratory units and were exposed to mixed organic solvents were compared with married women who were working in the packing units of the factory without occupational exposure to organic solvents. Frequency of spontaneous abortion and duration of pregnancy were assessed in both two groups. Collected data were analyzed with the SPSS software using t-test, logistic regression, and chi-square test. Results: In the present study, the frequency of spontaneous abortion in employees with exposure to organic solvents mixture was 10.7%. This study showed that even after adjustment for confounding factors, there was a significant correlation between spontaneous abortion and occupational exposure to organic solvents mixture and this correlation increased with increasing levels of exposure to organic solvents. Moreover, a significant correlation was observed between occupational exposure to mixed organic solvents and waiting time to become pregnant (TTP. Furthermore, this study showed that even after adjustment for confounding variables, shift workers were significantly more affected by spontaneous abortion compared to daytime workers (P < 0.001. Conclusion: According to the results of this study, since there is probability of spontaneous abortion resulting from occupational exposure to various chemicals including organic solvents, review of the status of occupational exposure of workers can be helpful

  5. Assessment of baroreflex sensitivity from spontaneous oscillations of blood pressure and heart rate: proven clinical value?

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    Pinna, Gian Domenico; Maestri, Roberto; La Rovere, Maria Teresa

    2015-04-01

    The baroreceptor-heart rate reflex (baroreflex sensitivity, BRS) is a key mechanism contributing to the neural regulation of the cardiovascular system. Several methods have been proposed so far to assess BRS by analyzing the spontaneous beat-to-beat fluctuations of arterial blood pressure and heart rate. These methods are inherently simple, non-invasive and low-cost. This study is an attempt to address the question of whether spontaneous baroreflex methods have proven to be of value in the clinical setting. In the first part of this article, we critically review most representative clinical studies using spontaneous BRS techniques either for risk stratification or treatment evaluation, these being major issues in the clinical management of the patients. In the second part, we address two important aspects of spontaneous BRS measurements: measurability and reliability. Estimation of BRS in the studies selected for the review was performed according to the sequence, transfer function, alpha-index and phase-rectified signal averaging method. Arterial blood pressure was recorded non-invasively during supine, short-term (Measurability and reliability can be a major issue in the measurement of spontaneous BRS, particularly in some patient populations like post-myocardial infarction and heart failure patents. Main causes of poor measurability are: non-sinus rhythm, a high rate of ectopic beats and the need for recorded time series of RR interval and arterial blood pressure to satisfy the constraints of the different BRS estimation algorithms. As for reliability, within-subject variability is rather high in the measurements of spontaneous BRS and, therefore, should be carefully taken into account when BRS measurements are used to detect treatment effects in individual patients. PMID:25798657

  6. Assessment of indicator gases of spontaneous combustion in underground mines in the Czech Republic

    OpenAIRE

    Adamus, Alois

    2008-01-01

    Research and applications of findings in the area of early indication of spontaneous combustion of coal using indicator gases started in the Czech Republic in the seventies to eighties of the last century. A significant progress occurred in the second half of the eighties, when methods of assessment of coal self-heating temperature were published in the Czech Republic (CR), e.g. in [1]. Consequently the objective findings of the research were projected in the year 1990 to generally binding le...

  7. In vivo assessment of arterial stiffness in the isoflurane anesthetized spontaneously hypertensive rat

    OpenAIRE

    Morgan, Eric E.; Casabianca, Andrew B; Khouri, Samer J; Kalinoski, Andrea L. Nestor

    2014-01-01

    Background Rodent models are increasingly used to study the development and progression of arterial stiffness. Both the non-invasive Doppler derived Pulse Wave Velocity (PWV) and the invasively determined arterial elastance index (EaI) have been used to assess arterial stiffness in rats and mice, but the need for anesthetic agents to make these in vivo estimates may limit their utility. Thus, we sought to determine: 1) if known differences in arterial stiffness in spontaneously hypertensive r...

  8. The Clinical Assessment Study of the Hand (CAS-HA: a prospective study of musculoskeletal hand problems in the general population

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    Marshall Michelle

    2007-08-01

    Full Text Available Abstract Background Pain in the hand affects an estimated 12–21% of the population, and at older ages the hand is one of the most common sites of pain and osteoarthritis. The association between symptomatic hand osteoarthritis and disability in everyday life has not been studied in detail, although there is evidence that older people with hand problems suffer significant pain and disability. Despite the high prevalence of hand problems and the limitations they cause in older adults, little attention has been paid to the hand by health planners and policy makers. We plan to conduct a prospective, population-based, observational cohort study designed in parallel with our previously reported cohort study of knee pain, to describe the course of musculoskeletal hand problems in older adults and investigate the relative merits of different approaches to classification and defining prognosis. Methods/Design All adults aged 50 years and over registered with two general practices in North Staffordshire will be invited to take part in a two-stage postal survey. Respondents to the survey who indicate that they have experienced hand pain or problems within the previous 12 months will be invited to attend a research clinic for a detailed assessment. This will consist of clinical interview, hand assessment, screening test of lower limb function, digital photography, plain x-rays, anthropometric measurement and brief self-complete questionnaire. All consenting clinic attenders will be followed up by (i general practice medical record review, (ii repeat postal questionnaire at 18-months, and (iii repeat postal questionnaire at 3 years. Discussion This paper describes the protocol for the Clinical Assessment Study of the Hand (CAS-HA, a prospective, population-based, observational cohort study of community-dwelling older adults with hand pain and hand problems based in North Staffordshire.

  9. Assessment of spontaneous pneumothorax in adults in a tertiary care hospital

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    Aparup Dhua

    2015-01-01

    Full Text Available Context: Pneumothorax continues to be a major cause of morbidity and mortality among respiratory patients, but there is a paucity of data regarding etiology, clinical profile, management, and outcome of spontaneous pneumothorax (SP, from this part of the world. Aims: To assess the patients of spontaneous pneumothorax in adults with special reference to the etiology, clinical presentation, management, and outcome of SP. Settings and Design: Prospective, observational study conducted in a tertiary care institution over a period of one year. Materials and Methods: All adult patients of SP attending the department of pulmonary medicine in a tertiary hospital were studied and detailed clinical, radiological, and management data were recorded and analyzed. Results: Sixty consecutive patients, who satisfied the inclusion criteria were included in the study. Among them 10 had primary spontaneous pneumothorax (PSP and 50 had secondary spontaneous pneumothorax (SSP. The overall male to female ratio was 4:1. The mean age of the PSP patients was 26.3 ± 2.19 years, whereas, that of the SSP patients was 53.42 ± 2.07 years (P < 0.0001. Seventy percent of the patients were smokers. The most common clinical manifestation of PSP was chest pain (80% in contrast to dyspnea in SSP (96%. The most common cause of SSP (42% was found to be chronic obstructive pulmonary disease (COPD followed by pulmonary tuberculosis (30%. The cases were managed with intercostal tube drainage (85%, simple aspiration (8.33%, and observation (6.67%. Full expansion of the lung was noted in 91.67% of the cases. Conclusion: Spontaneous pneumothorax was more common in men. SSP was far more common in this study, and the predominant underlying cause of SSP was COPD, which surpassed tuberculosis as the leading cause of SSP. This is in contrast to the results from previous studies done in our country. Intercostal tube drainage was the mainstay of treatment and the response was good.

  10. Assessing airway inflammation in clinical practice – experience with spontaneous sputum analysis

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    Magnussen Helgo

    2008-02-01

    Full Text Available Abstract Background The assessment of airway inflammation for the diagnosis of asthma or COPD is still uncommon in pneumology-specialized general practices. In this respect, the measurement of exhaled nitric oxide (NO, as a fast and simple methodology, is increasingly used. The indirect assessment of airway inflammation, however, does have its limits and therefore there will always be a need for methods enabling a direct evaluation of airway inflammatory cell composition. Sampling of spontaneous sputum is a well-known, simple, economic and non-invasive method to derive a qualitative cytology of airway cells and here we aimed to assess today's value of spontaneous sputum cytology in clinical practice. Methods Three pneumologists provided final diagnoses in 481 patients having sputum cytology and we retrospectively determined posterior versus prior probabilities of inflammatory airway disorders. Moreover, in a prospective part comprising 108 patients, pneumologists rated their confidence in a given diagnosis before and after knowing sputum cytology and rated its impact on the diagnostic process on an analogue scale. Results Among the 481 patients, 45% were diagnosed as having asthma and/or airway hyperresponsiveness. If patients showed sputum eosinophilia, the prevalence of this diagnosis was elevated to 73% (n = 109, p Thirty-three of the 108 patients were excluded from the prospective part (26 insufficient samples, 7 incomplete questionnaires. In 48/75 cases the confidence into a diagnosis was raised after knowing sputum cytology, and in 15/75 cases the diagnosis was changed as cytology provided new clues. Conclusion Our data suggest that spontaneous sputum cytology is capable of assisting in the diagnosis of inflammatory airway diseases in the outpatient setting. Despite the limitations by the semiquantitative assessment and lower sputum quality, the supportive power and the low economic effort needed can justify the use of this method

  11. A Helping Hand in Assessing Children's Knowledge: Instructing Adults To Attend to Gesture.

    Science.gov (United States)

    Kelly, Spencer D.; Singer, Melissa; Hicks, Janna; Goldin-Meadow, Susan

    2002-01-01

    Three experiments tested whether it is possible to teach college students who are not trained investigators to comprehend information regarding knowledge of conservation problems and mathematical equivalence conveyed through children's hand gestures. Findings suggest that instructing adults to attend to gesture enhances their assessment of…

  12. Assessment of adverse drug reactions based on spontaneous signals at secondary care public hospital

    Directory of Open Access Journals (Sweden)

    S Ponnusankar

    2015-01-01

    Full Text Available Adverse drug reactions are considered to be among the leading causes of morbidity and mortality. Approximately 5-25% of hospital admissions are due to adverse drug reactions and 6-15% of hospitalized patients experience serious adverse drug reactions, causing significant prolongation of hospital stay. Thus this study was aimed at determining adverse drug reactions by conducting spontaneous reporting in secondary care Govt. District Head Quarters Hospital at Ooty. A prospective Spontaneous Adverse Drug Reaction reporting study was conducted over a period of 12 months from July 2012 to June 2013. The assessment, categorization, causality, severity and preventability were assessed using standard criteria. A total of 47 suspected adverse drug reactions were reported during the study period. Over all incidences was 1.29% among the study population. Antibiotics (31.91% were the class of drug most commonly involved, while ciprofloxacin (14.89% was the most frequently reported. Type H (Hypersensitivity reactions (51.06% accounted for majority of the reports and a greater share of the adverse drug reactions are probable (89.36% based on causality assessment. Mild reactions accounted 82.97% based on modified Hartwig and Siegel severity scale. In 76.59% of the reports, the reaction was considered to be preventable based on Schumock and Thornton preventability scale. The implementation of monitoring based on spontaneous reporting will be useful for the detection and evaluation is associated with increase in morbidity and duration of hospitalization. This study also has established the vital role of clinical pharmacist in the adverse drug reaction monitoring program.

  13. Movement recognition technology as a method of assessing spontaneous general movements in high risk infants

    Directory of Open Access Journals (Sweden)

    Claire eMarcroft

    2015-01-01

    Full Text Available Preterm birth is associated with increased risks of neurological and motor impairments such as cerebral palsy. The risks are highest in those born at the lowest gestations. Early identification of those most at risk is challenging meaning that a critical window of opportunity to improve outcomes through therapy-based interventions may be missed. Clinically, the assessment of spontaneous general movements is an important tool which can be used for the prediction of movement impairments in high risk infants.Movement recognition aims to capture and analyze relevant limb movements through computerized approaches focusing on continuous, objective, and quantitative assessment. Different methods of recording and analyzing infant movements have recently been explored in high risk infants. These range from camera-based solutions to body-worn miniaturized movement sensors used to record continuous time-series data that represent the dynamics of limb movements. Various machine learning methods have been developed and applied to the analysis of the recorded movement data. This analysis has focused on the detection and classification of atypical spontaneous general movements. This paper aims to identify recent translational studies using movement recognition technology as a method of assessing movement in high risk infants. The application of this technology within pediatric practice represents a growing area of inter-disciplinary collaboration which may lead to a greater understanding of the development of the nervous system in infants at high risk of motor impairment.

  14. Up in flames: a flammability assessment of alcohol-based hand sanitizers on common perioperative materials

    Directory of Open Access Journals (Sweden)

    Samuel Almengor

    2015-01-01

    Full Text Available Introduction: The objective of this study was to perform a flammability assessment of alcohol-based hand sanitizers on common perioperative materials. There is an estimated 550–650 surgical fires that occur nationally each year, an instance comparable to that of wrong-site surgery, yet only about 100 operating room fires are reported each year.  The median cost of an OR fire settlement claim is $120,166.  Generation of fire requires the presence of three components, known as the “fire triad”: (1 an oxidizer, (2 an ignition source, and (3 fuel. Methods: The flammability of five common perioperative materials was assessed (conform stretch gauze, surgical drape, foam headrest, OR towels, and lap sponges.  The flammability of these materials was assessed alone and with six test liquids (Purell Advanced, Germ-X, generic hand sanitizer, spray hand sanitizer, ChloraPrep, and sterile water.  The assessments with the test liquids were conducted immediately after application and after five minutes.  The ignition sources used were a lighter and two spark generators (piezo-electric and battery-powered spark generator. Results: Two of the five perioperative materials were easily ignitable (OR towels and lap sponges, while the others exhibited flame retardant properties, which manifested itself as “melting” when an ignition source was applied (conform stretch gauze, surgical drape, and foam headrest.  ChloraPrep served as the positive control and sterile water served as the negative control.  When alcohol-based hand sanitizers and ChloraPrep were added to these materials, the flammability increased.  The addition of sterile water to the perioperative materials rendered the material nonflammable. The piezo-electric spark generator did not elicit any combustion of perioperative materials with or without test liquids, but the battery-powered spark generator did. Conclusion: Commonly used alcohol-based hand sanitizers are flammable.  When

  15. Elimination of hand-wrist radiographs for maturity assessment in children needing orthodontic therapy

    International Nuclear Information System (INIS)

    Our aim was to evaluate the validity of the cervical vertebra maturation (CVM) method as an indicator of skeletal age during the circumpubertal period by correlating the CVM method with the hand-wrist maturation (HWM) method in an attempt to eliminate the need for hand-wrist radiographs for maturity assessment. Hand-wrist and lateral cephalometric radiographs of 400 Chinese were randomly selected. The age for girls was between 10 years and 15 years and for boys it was between 12 years and 17 years, so that they were within the circumpubertal period. The CVM was assessed by a method developed by Baccetti and co-workers, whereas hand-wrist maturation was assessed by Fishman's method. The CVM was significantly correlated with HWM skeletal age. (Spearman's r boys 0.9206, girls = 0.9363). All the patients in cervical vertebra stage 3 (CVS3) of CVM corresponded to skeletal maturation indicator 2 (SMI2) or SMI3 stages of HWM (around the peak of the growth spurt). The method error was insignificant. CVM is a valid indicator of skeletal growth during the circumpubertal period. This work will provide dental practitioners with information on jaw growth modification therapy. (orig.)

  16. Elimination of hand-wrist radiographs for maturity assessment in children needing orthodontic therapy

    Energy Technology Data Exchange (ETDEWEB)

    Al Khal, Hessa A.; Wong, Ricky W.K.; Rabie, A.B.M. [University of Hong Kong, Orthodontics, Faculty of Dentistry, Prince Philip Dental Hospital, Hong Kong (China)

    2008-03-15

    Our aim was to evaluate the validity of the cervical vertebra maturation (CVM) method as an indicator of skeletal age during the circumpubertal period by correlating the CVM method with the hand-wrist maturation (HWM) method in an attempt to eliminate the need for hand-wrist radiographs for maturity assessment. Hand-wrist and lateral cephalometric radiographs of 400 Chinese were randomly selected. The age for girls was between 10 years and 15 years and for boys it was between 12 years and 17 years, so that they were within the circumpubertal period. The CVM was assessed by a method developed by Baccetti and co-workers, whereas hand-wrist maturation was assessed by Fishman's method. The CVM was significantly correlated with HWM skeletal age. (Spearman's r boys = 0.9206, girls = 0.9363). All the patients in cervical vertebra stage 3 (CVS3) of CVM corresponded to skeletal maturation indicator 2 (SMI2) or SMI3 stages of HWM (around the peak of the growth spurt). The method error was insignificant. CVM is a valid indicator of skeletal growth during the circumpubertal period. This work will provide dental practitioners with information on jaw growth modification therapy. (orig.)

  17. Composite Tissue Transplant of Hand or Arm: A Health Technology Assessment

    Science.gov (United States)

    2016-01-01

    Background Injuries to arms and legs following severe trauma can result in the loss of large regions of tissue, disrupting healing and function and sometimes leading to amputation of the damaged limb. People experiencing amputations of the hand or arm could potentially benefit from composite tissue transplant, which is being performed in some countries. Currently, there are no composite tissue transplant programs in Canada. Methods We conducted a systematic review of the literature, with no restriction on study design, examining the effectiveness and cost-effectiveness of hand and arm transplant. We assessed the overall quality of the clinical evidence with GRADE. We developed a Markov decision analytic model to determine the cost-effectiveness of transplant versus standard care for a healthy adult with a hand amputation. Incremental cost-effectiveness ratios (ICERs) were calculated using a 30-year time horizon. We also estimated the impact on provincial health care costs if these transplants were publicly funded in Ontario. Results Compared to pre-transplant function, patients’ post-transplant function was significantly better. For various reasons, 17% of transplanted limbs were amputated, 6.4% of patients died within the first year after the transplant, and 10.6% of patients experienced chronic rejections. GRADE quality of evidence for all outcomes was very low. In the cost-effectiveness analysis, single-hand transplant was dominated by standard care, with increased costs ($735,647 CAD vs. $61,429) and reduced quality-adjusted life-years (QALYs) (10.96 vs. 11.82). Double-hand transplant also had higher costs compared with standard care ($633,780), but it had an increased effectiveness of 0.17 QALYs, translating to an ICER of $3.8 million per QALY gained. In most sensitivity analyses, ICERs for bilateral hand transplant were greater than $1 million per QALY gained. A hand transplant program would lead to an estimated annual budget impact of $0.9 million to $1

  18. Response shift in severity assessment of hand eczema with visual analogue scales

    DEFF Research Database (Denmark)

    Mollerup, Annette; Johansen, Jeanne D

    2015-01-01

    BACKGROUND: Hand eczema is a common and fluctuating disease. Visual analogue scales (VASs) are used to assess disease severity, both currently and when at its worst. However, such patient-reported outcomes may be at risk of being flawed owing to recall bias or response shifts. OBJECTIVE: To explore...... symptoms as part of the treatment course could perhaps counteract this tendency for there to be severity habituation....

  19. Assessment of the Quality of Water from Hand-Dug Wells in Ghana

    OpenAIRE

    Marian Asantewah Nkansah; Nathaniel Owusu Boadi; Mercy Badu

    2010-01-01

    This study focused upon the determination of physicochemical and microbial properties, including metals, selected anions and coliform bacteria in drinking water samples from hand-dug wells in the Kumasi metropolis of the Republic of Ghana. The purpose was to assess the quality of water from these sources. Ten different water samples were taken from different parts of Kumasi, the capital of the Ashanti region of Ghana and analyzed for physicochemical parameters including pH, electrical conduct...

  20. A method to assess hand motor blocks in Parkinson's disease with digitizing tablet.

    Science.gov (United States)

    Popovic, Mirjana B; Dzoljic, Eleonora; Kostic, Vladimir

    2008-12-01

    The non-volitional sudden discontinuation of motor activity, called motor block (MB) or freezing is most commonly associated with Parkinson's disease (PD). MB extends beyond the classical manifestations of PD: akinezia, bradykinezia, rigidity, tremor, and postural instability. MB has been observed and quantified in internally cued repetitive movements such as gait, speech, handwriting, and manual tapping tasks as a distinct feature of PD. We present a simple measurement system for objective evaluation of MB during point-to-point hand movements in patients with PD. Hand trajectories were evaluated in eight PD patients based on values obtained from a digitizing tablet (DT) score. 50 trials per day were recorded in seven consecutive working days. Subjects were instructed to consciously prepare and self-initiate movements between arbitrarily fixed starting and target points without lifting a wireless magnetic mouse. MB was identified as the time interval during movement with no change in coordinates. We analyzed three kinematic parameters: duration, start and number of MBs. If MBs were documented, the DT score was 1, if not, 0. Results were then compared with the ratings of the question in motor section related to freezing of hands from the Unified Parkinson's Disease Rating Scale (UPDRS). For all patients, DT score was in agreement with the UPDRS. Present results indicate that DT is useful for assessing MBs during volitional planar hand movement. This low-cost instrument may be included in a clinical test battery because of short testing time and trouble-free preparation of patient. PMID:19060446

  1. Assessing vendors a hands-on guide to assessing infosec and IT vendors

    CERN Document Server

    More, Josh

    2013-01-01

    Assessing vendors is a tricky process. Large and regulated organizations are forced to demonstrate due diligence in vendor assessment, but often do not know how to do this. This results in a great deal of busywork being required by both the vendors and the organizations. Smaller organizations don't know what to look for and, as a result, often wind up selecting based on price instead of value. This results in service failures and vendors that just milk their customers for as long as they can. Assessing Vendors shows you how to walk the line between under- and over-assessing, so deci

  2. Synovitis maps for the assessment of inflammatory diseases of the hand

    International Nuclear Information System (INIS)

    To compare accuracy and review times of FLASH-MRI-derived synovitis maps (SM) with conventional MR images (cMRI) in the assessment of articular synovitis and tenosynovitis of the hand. 80 hands in 40 patients (mean age, 48 years; range, 15-72 years) were assessed for synovitis on cMRI and SM by two readers independently. Reporting times and diagnostic confidence (scale: 1 = least, 5 = most confident) were measured. Results from an assessment of a panel of senior musculoskeletal radiologists served as the standard of reference. Sensitivity and specificity for the detection of articular synovitis were 0.91/1.00 (R1) and 1.00/0.67 (R2) on cMRI and 0.87/0.75 (R1) and 0.91/0.45 (R2) on SM and for the detection of tenosynovitis 0.95/0.63 (R1) and 0.67/0.79 (R2) on cMRI and 0.67/0.89 (R1) and 0.38/1.00 (R2) on SM. Mean review times (cMRI/SM, sec) were 142/37 (R1) and 167/25 (R2). Mean diagnostic confidence (cMRI/SM) was 3.7/3.4 (R1) and 3.2/3.5 (R2) for articular synovitis and 4.0/4.0 (R1), 3.3/3.7 (R2) for tenosynovitis. Synovitis maps provide a comparable diagnostic accuracy to conventional MR images in the assessment of articular synovitis and tenosynovitis of the hand. Because of short review times, synovitis maps provide a fast overview of locations with synovial enhancement. (orig.)

  3. Assessment of Fidelity in Interventions to Improve Hand Hygiene of Healthcare Workers: A Systematic Review.

    Science.gov (United States)

    Musuuza, Jackson S; Barker, Anna; Ngam, Caitlyn; Vellardita, Lia; Safdar, Nasia

    2016-05-01

    OBJECTIVE Compliance with hand hygiene in healthcare workers is fundamental to infection prevention yet remains a challenge to sustain. We examined fidelity reporting in interventions to improve hand hygiene compliance, and we assessed 5 measures of intervention fidelity: (1) adherence, (2) exposure or dose, (3) quality of intervention delivery, (4) participant responsiveness, and (5) program differentiation. DESIGN Systematic review METHODS A librarian performed searches of the literature in PubMed, Cumulative Index to Nursing and Allied Health (CINAHL), Cochrane Library, and Web of Science of material published prior to June 19, 2015. The review protocol was registered in PROSPERO International Prospective Register of Systematic Reviews, and assessment of study quality was conducted for each study reviewed. RESULTS A total of 100 studies met the inclusion criteria. Only 8 of these 100 studies reported all 5 measures of intervention fidelity. In addition, 39 of 100 (39%) failed to include at least 3 fidelity measures; 20 of 100 (20%) failed to include 4 measures; 17 of 100 (17%) failed to include 2 measures, while 16 of 100 (16%) of the studies failed to include at least 1 measure of fidelity. Participant responsiveness and adherence to the intervention were the most frequently unreported fidelity measures, while quality of the delivery was the most frequently reported measure. CONCLUSIONS Almost all hand hygiene intervention studies failed to report at least 1 fidelity measurement. To facilitate replication and effective implementation, reporting fidelity should be standard practice when describing results of complex behavioral interventions such as hand hygiene. Infect Control Hosp Epidemiol 2016;37:567-575. PMID:26861117

  4. A new methodology for the assessment of hand protection from ultraviolet exposure

    International Nuclear Information System (INIS)

    A number of industrial applications and public services involve occupational exposure to ultraviolet radiation (UVR) from a variety of lamps and lasers. The aim of this study was to develop a methodology for the assessment of the UV protection level for disposable gloves. Glove UV protection factor is defined as a time-scale increase in exposure permitted for the hand protected by a glove with respect to an unprotected hand. Our study showed that for all tested gloves a change in UVR attenuation with stretching is characteristic for the type of glove material and can be included as a scaling factor in the definition of UVR protection. Glove material has a bigger effect on UVR protection level than variations in the glove thickness or its colour. Examples of assessment of the 'worst case scenario' are compared with the protection level against a number of sources, together with the guidance on a simplified evaluation protocol. An application-specific assessment, illustrated for 'SmartWater' forensic examinations and biological trans-illuminators, demonstrates that some gloves provide inadequate protection against occupational UV exposure. (authors)

  5. Assessing the opinions of subjects with or without sustained hand injury about toe-to-thumb transfer

    Directory of Open Access Journals (Sweden)

    Ismail Kucuker

    2015-12-01

    Full Text Available Introduction: Traumatic finger amputations may lead to significant functional and aesthetic impairment yet when compared with the number of finger amputations, toe-to-hand transplantation numbers are very low. Material Method: In this study we aimed to assess the thoughts of healthy subjects, with or without previously sustained hand injury, about toe-to-hand transplantation and re-assess their thoughts following a brief informative description of the surgery. Results: We found that after visual briefing, willingness to undergo toe-to-hand transplantation dramatically increased. Conclusion: Visual briefings including video presentations have a great impact on eliminating negative prejudgement. [Hand Microsurg 2015; 4(3.000: 58-62

  6. Rasch Analysis of a New Hierarchical Scoring System for Evaluating Hand Function on the Motor Assessment Scale for Stroke

    Directory of Open Access Journals (Sweden)

    Joyce S. Sabari

    2014-01-01

    Full Text Available Objectives. (1 To develop two independent measurement scales for use as items assessing hand movements and hand activities within the Motor Assessment Scale (MAS, an existing instrument used for clinical assessment of motor performance in stroke survivors; (2 To examine the psychometric properties of these new measurement scales. Design. Scale development, followed by a multicenter observational study. Setting. Inpatient and outpatient occupational therapy programs in eight hospital and rehabilitation facilities in the United States and Canada. Participants. Patients (N=332 receiving stroke rehabilitation following left (52% or right (48% cerebrovascular accident; mean age 64.2 years (sd 15; median 1 month since stroke onset. Intervention. Not applicable. Main Outcome Measures. Data were tested for unidimensionality and reliability, and behavioral criteria were ordered according to difficulty level with Rasch analysis. Results. The new scales assessing hand movements and hand activities met Rasch expectations of unidimensionality and reliability. Conclusion. Following a multistep process of test development, analysis, and refinement, we have redesigned the two scales that comprise the hand function items on the MAS. The hand movement scale contains an empirically validated 10-behavior hierarchy and the hand activities item contains an empirically validated 8-behavior hierarchy.

  7. Assessment of a fast electro-optical shutter for 1D spontaneous Raman scattering in flames

    Science.gov (United States)

    Ajrouche, Hassan; Lo, Amath; Vervisch, Pierre; Cessou, Armelle

    2015-07-01

    A critical aspect of 1D single-shot spontaneous Raman scattering (SRS) experiments in turbulent flames is the need to ensure highly efficient detection associated with fast temporal gating to remove flame emission. Back-illuminated CCD cameras are remarkable for their high quantum efficiency, large dynamic range, good spatial resolution and low readout noise. However, their full-frame architecture makes these detectors difficult to use for SRS measurements in flame and requires the development of a high-speed shutter. The present work proposes a fast electro-optical shutter composed of a large aperture Pockels cell placed between two crossed polarizers, providing high-speed gating up to 500 ns. The throughput of the shutter and its spatial homogeneity are measured. The angular tolerance of the Pockels cell is determined and its suitability for 1D probing is assessed. Spectra acquired in a premixed methane-air flame show the capacity of the shutter to remove flame emission and increase the signal-to-noise ratio for major Raman species.

  8. Hand X-ray in pediatric endocrinology: Skeletal age assessment and beyond

    Directory of Open Access Journals (Sweden)

    Vincenzo De Sanctis

    2014-01-01

    Full Text Available Skeletal age assessment (SAA is a clinical procedure which is used in determining the SA of children and adolescents. Bone development is influenced by a number of factors, including nutrition, hormonal secretions, and genetics. There are several factors to be borne in mind when using methods of assessing skeletal maturity. These include: Variability among methods, degree of variability in the estimation of skeletal maturation, sources of low accuracy, and dispersion of the values of skeletal maturation. Currently, the main clinical methods for SAA are the Greulich and Pyle (GP and Tanner and Whitehouse (TW methods. The GP method has the advantage of being quick and easy to use. A well-trained radiologist takes few minutes to determine the bone age (BA from a single hand radiograph. The method of TW, however, seems to be more reliable than the GP method. In recent years, the increasing speed in computer sciences and reduction of their cost has given the opportunity to create and use computerized BA estimation system. Despite the fact that the number of automated systems for BAA have increased, most are still within the experimental phase. The use of automated BA determination system, cleared for clinical use in Europe (BoneXpert, has been validated for various ethnicities and children with endocrine disorders. Ultrasound imaging has some limitations that include operator dependence, lower intra-rater and inter-rater reliability of assessment and difficulties with standardization of documentation and imaging transfer. Magnetic resonance imaging (MRI is noninvasive alternative tool for SA assessment in children. However, few studies have been reported on this topic, and further research is needed to evaluate the reliability and validity of MRI BAAs. In conclusion, at present radiographic methods for the assessment of BA remain the gold standards. Whatever method one adopts, it is essential to minimize the causes of imprecision by taking care to

  9. Design of a robotic device for assessment and rehabilitation of hand sensory function.

    Science.gov (United States)

    Lambercy, Olivier; Robles, Alejandro Juárez; Kim, Yeongmi; Gassert, Roger

    2011-01-01

    This paper presents the design and implementation of the Robotic Sensory Trainer, a robotic interface for assessment and therapy of hand sensory function. The device can provide three types of well controlled stimuli: (i) angular displacement at the metacarpophalangeal (MCP) joint using a remote-center-of-motion double-parallelogram structure, (ii) vibration stimuli at the fingertip, proximal phalange and palm, and (iii) pressure at the fingertip, while recording position, interaction force and feedback from the user over a touch screen. These stimuli offer a novel platform to investigate sensory perception in healthy subjects and patients with sensory impairments, with the potential to assess deficits and actively train detection of specific sensory cues in a standardized manner. A preliminary study with eight healthy subjects demonstrates the feasibility of using the Robotic Sensory Trainer to assess the sensory perception threshold in MCP angular position. An average just noticeable difference (JND) in the MCP joint angle of 2.46° (14.47%) was found, which is in agreement with previous perception studies. PMID:22275636

  10. Assessment of bronchodilatation after spontaneous recovery from a histamine challenge in asthmatic children.

    OpenAIRE

    Merkus, P J; Rooda, H M; van Essen-Zandvliet, E E; Duiverman, E. J.; Quanjer, P. H.; Kerrebijn, K F

    1992-01-01

    BACKGROUND: It would be convenient to be able to measure airway responsiveness to histamine and to bronchodilator drugs on the same day, but whether this can be done reliably is unknown. METHODS: The effect of a prior histamine challenge on the bronchodilator response to salbutamol after spontaneous recovery of FEV1 to 95% of the prechallenge level was studied in two groups of asthmatic children. Fourteen children inhaled 400 micrograms salbutamol after spontaneous recovery from a histamine c...

  11. Assessing most practical and effective protocols to sanitize hands of poultry catching crew members.

    Science.gov (United States)

    Racicot, M; Kocher, A; Beauchamp, G; Letellier, A; Vaillancourt, J-P

    2013-08-01

    Catching crew members can heavily contaminate their hands with organic material. They can act as mechanical vector and spread diseases between farms. Hand hygiene is an important issue for the industry as a whole and for human health by reducing contamination risks. Many studies, in human medicine, tend to make hand rub a standard for hand hygiene. However, few studies have tested the effectiveness of hand hygiene products on visibly contaminated hands. The objective of this study was to evaluate the effectiveness of practical hand sanitization protocols: water and soap, degreasing cream and hand wipes, all combined with alcohol-based hand gel. The use of alcohol-based gel alone was also evaluated. For the reduction of coliforms after washing, there was no statistically significant difference between protocols when the initial level of bacterial contamination was low to moderate. When hands were highly contaminated, the alcohol-based gel alone was less effective than the degreasing cream combined with the alcohol-based gel (p=0.002). As for the reduction in total aerobic bacteria counts, there was no difference between protocols when the initial level of bacterial contamination was low. The water, soap and alcohol-based gel protocol was more effective than the scrubbing wipes and alcohol-based gel protocol when hands were moderately (p=0.002) and highly contaminated (p=0.001). All protocols were effective in neutralizing Salmonella on hands. Reducing the level of bacterial contamination on hands before using an alcohol-based gel seems important to ensure effective hand sanitation for highly and moderately contaminated hands. This can be done by using a degreasing cream or water and soap. Based on the survey, catching crew members preferred using warm water and soap compared to a degreasing cream. PMID:23618466

  12. Assessing the Effectiveness of an Educational Program on Compliance with Hand Hygiene in a Pediatric Intensive Care Unit

    OpenAIRE

    Charalampia Nteli; Petros Galanis; Despoina Koumpagioti; Georgios Poursanidis; Eleni Panagiotopoulou; Vasiliki Matziou

    2014-01-01

    Objective. To identify the impact of an educational intervention on compliance of health professionals with hand hygiene. Method. The survey involved nurses, doctors, and physiotherapists who work in pediatric intensive care unit of a pediatric hospital. A multifaceted hand hygiene educational program was introduced with compliance assessed during successive observational surveys. Results. The total healthcare professionals’ compliance increased from 31.8% in the baseline period to 51.5% imme...

  13. Assessment of bullae with high-resolution CT in patients with spontaneous pneumothorax: comparison with video-assisted thoracoscopy

    International Nuclear Information System (INIS)

    The purpose of this study was to compare the findings on high-resolution CT (HRCT) of the chest with those on video-assisted thoracoscopy for the detection of bullae in patients who had undergone an operation for spontaneous pneumothorax, and we also wished to evaluate the relationship between the characteristics of bullae on HRCT and development of spontaneous pneumothorax. Fifty patients with spontaneous pneumothorax who had undergone both HRCT of the chest and video-assisted thoracoscopic surgery were included in the study. Spontaneous pneumothoraces were classified as either primary or secondary pneumothorax, and as initial or recurrent pneumothorax. The HRCT scans were obtained with 1 mm slice thickness and a 5 mm scan interval. Two radiologists retrospectively compared the HRCT findings of the chest with those findings on video-assisted thoracoscopy for the detection of bullae, and they evaluated the value of HRCT for diagnosing bullae. In addition, we assessed the size and number of bullae in these patients, and we also evaluated the relationship between those findings of bullae and the development of spontaneous pneumothorax. Bullae were detected in 40 patients by using video-assisted thoracoscopy, and HRCT showed bullae in 38 of these patients. Bullae were not identified with video-assisted thoracoscopy in the remaining ten patients, and among these ten patients, bullae were not demonstrated by HRCT in eight of them. Therefore, the sensitivity and specificity of HRCT for the detection of bullae were 95% (38/40| and 80% (8/10), respectively. The average size of the bullae of the affected hemithorax and the contralateral un-affected hemithorax was 1.97 cm ± 2.30 and 1.24 cm±1.46, respectively. Pneumothorax was more frequently observed in the hemithorax with larger bullae (p0.05). The average size of bullae in patients with secondary pneumothorax and those bullae of patients with primary pneumothorax was 4.44 cm±4.06 and 1.42 cm±1.26, respectively. The

  14. The Clinical Assessment Study of the Hand (CAS-HA): a prospective study of musculoskeletal hand problems in the general population

    OpenAIRE

    Marshall Michelle; Wood Laurence; Duncan Rachel; Thomas Elaine; Peat George; Handy June; Nicholls Elaine; Myers Helen; Tyson Catherine; Hay Elaine; Dziedzic Krysia

    2007-01-01

    Abstract Background Pain in the hand affects an estimated 12–21% of the population, and at older ages the hand is one of the most common sites of pain and osteoarthritis. The association between symptomatic hand osteoarthritis and disability in everyday life has not been studied in detail, although there is evidence that older people with hand problems suffer significant pain and disability. Despite the high prevalence of hand problems and the limitations they cause in older adults, little at...

  15. The Diagnostic Assessment of Hand Elevation Test in Carpal Tunnel Syndrome

    OpenAIRE

    Ma, Hyunjin; Kim, Insoo

    2012-01-01

    Objective The aim of this study is to establish the value of hand elevation test as a reproducible provocative test for the diagnosis of carpal tunnel syndrome (CTS). Methods We had a prospective study of 45 hands of 38 patients diagnosed with CTS between April 2005 and February 2009. The diagnosis of CTS was based on the American Academy of Neurology clinical diagnostic criteria. Experimental and control group patients underwent Tinel's test, Phalen's test, carpal compression test and hand e...

  16. Assessing agreement of observer- and self-annotations in spontaneous multimodal emotion data

    NARCIS (Netherlands)

    Truong, K.P.; Neerincx, M.A.; Leeuwen, D.A. van

    2008-01-01

    We investigated inter-observer agreement and the reliability of self-reported emotion ratings (i.e., self-raters judging their own emotions) in spontaneous multimodal emotion data. During a multiplayer video game, vocal and facial expressions were recorded (including the game content itself) and wer

  17. An Analogue Assessment of Repetitive Hand Behaviours in Girls and Young Women with Rett Syndrome

    Science.gov (United States)

    Wales, L.; Charman, T.; Mount, R. H.

    2004-01-01

    Rett syndrome is a neuro-developmental disorder that almost exclusively affects females. In addition to neuro-developmental regression and loss of hand skills, apraxia, deceleration of head growth, and increasing spasticity and scoliosis, a number of behavioural features are also seen, including stereotypic hand movements, hyperventilation and…

  18. Assessment of hand dysfunction in patients receiving hemodialysis through arteriovenous fistula

    Directory of Open Access Journals (Sweden)

    Zeynep Tuna

    2015-06-01

    Full Text Available Objective: Patients receiving haemodialysis treatment generally tend to avoid using the upper extremity with arteriovenous (AV fistulae and it results in impairment of hand functions. Limited data are available about impairment associated with hand complications in those patients The aim of this pilot study is to evaluate the handgrip and pinching strengths and functional level of both hands in patients receiving haemodialysis. Methods: Fifteen chronic renal failure patients receiving haemodialysis (30-83 years and 11 age-matched healthy volunteers participated in the study. All the patients were undergoing treatment through arteriovenous fistulae in the upper extremity. Handgrip strength with a manual dynamometer and pinch strength with a pinchmeter were measured. Functional level of both hands was evaluated with Nine-Hole Peg Test. Results: Handgrip strengths of both hands were lower in patients receiving haemodialysis than healthy control group (p0.05. 9-Hole Peg Test results in both placement and removal showed a great significant difference in both hands with a statistical significance of p<0.001. Conclusion: Our first results revealed that chronic renal failure patients receiving haemodialysis treatment through arteriovenous fistulae in the upper extremity have a significant impairment in strength and functional level of hand. The lack of differences between two hands may be concluded that the upper extremity impairment in patients results from the disease course or haemodialysis treatment, not from the vascular access. J Clin Exp Invest 2015; 6 (2: 110-114

  19. Risk assessment of hand washing efficacy using literature and experimental data.

    Science.gov (United States)

    Montville, Rebecca; Chen, Yuhuan; Schaffner, Donald W

    2002-03-01

    This study simulated factors that influence the levels of bacteria on foodservice workers' hands. Relevant data were collected from the scientific literature and from laboratory experiments. Literature information collected included: initial bacterial counts on hands and water faucet spigots, bacterial population changes during hand washing as effected by soap type, sanitizing agent, drying method, and the presence of rings. Experimental data were also collected using Enterobacter aerogenes as a surrogate for transient bacteria. Both literature and experimental data were translated into appropriate discrete or probability distribution functions. The appropriate statistical distribution for each phase of the hand washing process was determined. These distributions were: initial count on hands, beta (2.82, 2.32, 7.5); washing reduction using regular soap, beta (3.01, 1.91, -3.00, 0.60); washing reduction using antimicrobial soap, beta (4.19, 2.99, -4.50, 1.50); washing reduction using chlorhexidine gluconate (CHG), triangular (-4.75, -1.00, 0); reductions from hot air drying, beta (3.52, 1.92, -0.20, 1.00); reduction from paper towel drying, triangular (-2.25, -0.75, 0); reduction due to alcohol sanitizer, gamma (-1.23, 4.42) -5.8; reduction due to alcohol-free sanitizer, gamma (2.22, 5.38) -5.00; and the effect of rings, beta (8.55, 23.35, 0.10, 0.45). Experimental data were fit to normal distributions (expressed as log percentage transfer rate): hand-to-spigot transfer, normal (-0.80, 1.09); spigot to hand, normal (0.36, 0.90). Soap with an antimicrobial agent (in particular, CHG) was observed to be more effective than regular soap. Hot air drying had the capacity to increase the amount of bacterial contamination on hands, while paper towel drying caused a slight decrease in contamination. There was little difference in the efficacy of alcohol and alcohol-free sanitizers. Ring wearing caused a slight decrease in the efficacy of hand washing. The experimental data

  20. Occupational hand eczema caused by nickel and evaluated by quantitative exposure assessment

    DEFF Research Database (Denmark)

    Jensen, Peter; Thyssen, Jacob Pontoppidan; Johansen, Jeanne D; Skare, Lizbet; Menné, Torkil; Lidén, Carola

    2011-01-01

    dilution series were performed. Results. Nickel was detected in all samples from the hands. In all patients, the nickel content on the hands was higher than on the non-exposed control area. Conclusions. Occupational exposure to nickel-releasing items raised the nickel content on exposed skin as compared...... with a non-exposed control site. Nickel-reducing measures led to complete symptom relief in all cases. In cases of a positive nickel patch test reaction and hand eczema, patients should perform the dimethylglyoxime (DMG) test on metallic items at home and at work. The acid wipe sampling technique is...

  1. Assessing the association between omalizumab and arteriothrombotic events through spontaneous adverse event reporting

    OpenAIRE

    Ali AK; Hartzema AG

    2012-01-01

    Ayad K Ali, Abraham G HartzemaDepartment of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, USABackground: Omalizumab is a monoclonal antibody, indicated for the treatment of severe allergic asthma. In Europe, there have been concerns about the cardiovascular safety of omalizumab. The objective of this study was to analyze the association between omalizumab and arterial thrombotic events in a spontaneous adverse drug reaction reporting database...

  2. Assessment of the bacterial contamination of hand air dryer in washrooms

    OpenAIRE

    Alharbi, Sulaiman Ali; Salmen, Saleh Hussein; Chinnathambi, Arunachalam; Alharbi, Naiyf S.; Zayed, M.E.; Al-Johny, Bassam O.; Wainwright, Milton

    2015-01-01

    The present study was carried out, using standard techniques, to identify and count the bacterial contamination of hand air dryers, used in washrooms. Bacteria were isolated from the air flow, outlet nozzle of warm air dryers in fifteen air dryers used in these washrooms. Bacteria were found to be relatively numerous in the air flows. Bacterially contaminated air was found to be emitted whenever a warm air dryer was running, even when not being used for hand drying. Our investigation shows th...

  3. Capabilities of Cone-Beam Computed Tomography in the Assessment of the Structure of Wrist and Hand Bones

    OpenAIRE

    А.Yu. Vasiliev, PhD, MD; N.N. Blinov, PhD, MD; Е.A. Egorova, PhD, MD; D.V. Makarova; E.G. Gorlycheva; M.O. Dutova

    2013-01-01

    An analysis of the capabilities of cone-beam computed tomography (CBCT) in the assessment of the form and structure of wrist and hand bones was the aim of the research. Cone-beam CT of wrist and hand was conducted in a group of voluntary patients, which included 40 members aged 22- 68 years. Magnetic resonance imaging (МRI) was carried out in 80.0% (n = 32) of cases, multislice computed tomography (MSCT) in 40.0% (n=16) of cases. In 62.5 % (n=25) of cases, digital microfocus radiography on X-...

  4. Preliminary evaluation of SensHand V1 in assessing motor skills performance in Parkinson disease.

    Science.gov (United States)

    Cavallo, Filippo; Esposito, Dario; Rovini, Erika; Aquilano, Michela; Carrozza, Maria Chiara; Dario, Paolo; Maremmani, Carlo; Bongioanni, Paolo

    2013-06-01

    Nowadays, the increasing old population 65+ as well as the pace imposed by work activities lead to a high number of people that have particular injuries for limbs. In addition to persistent or temporary disabilities related to accidental injuries we must take into account that part of the population suffers from motor deficits of the hands due to stroke or diseases of various clinical nature. The most recurrent technological solutions to measure the rehabilitation or skill motor performance of the hand are glove-based devices, able to faithfully capture the movements of the hand and fingers. This paper presents a system for hand motion analysis based on 9-axis complete inertial modules and dedicated microcontroller which are fixed on fingers and forearm. The technological solution presented is able to track the patients' hand motions in real-time and then to send data through wireless communication reducing the clutter and the disadvantages of a glove equipped with sensors through a different technological structure. The device proposed has been tested in the study of Parkinson's disease. PMID:24187283

  5. Hand collection - hand harvest

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This is a summary of activities related to the collection and harvest of seeds on Neal Smith National Wildlife Refuge between 1992 and 2009. Information about hand...

  6. Capabilities of Cone-Beam Computed Tomography in the Assessment of the Structure of Wrist and Hand Bones

    Directory of Open Access Journals (Sweden)

    А.Yu. Vasiliev, PhD, MD

    2013-06-01

    Full Text Available An analysis of the capabilities of cone-beam computed tomography (CBCT in the assessment of the form and structure of wrist and hand bones was the aim of the research. Cone-beam CT of wrist and hand was conducted in a group of voluntary patients, which included 40 members aged 22- 68 years. Magnetic resonance imaging (МRI was carried out in 80.0% (n = 32 of cases, multislice computed tomography (MSCT in 40.0% (n=16 of cases. In 62.5 % (n=25 of cases, digital microfocus radiography on X-ray unit Pardus (Russia and standard radiography of wrist and hand were conducted. According to the results of the research, CBCT shows a high efficiency in detection of form, measurements and structural changes of bones of the anatomic region.

  7. Assessment of bullae with high-resolution CT in patients with spontaneous pneumothorax: comparison with video-assisted thoracoscopy

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Kyoung Rae; Oh, Yu Whan; Noh, Hyung Jun; Cho, Kyu Ran; Lee, Ki Yeol; Kang, Eun Young; Kim, Jung Hyuk [College of Medicine, Korea Univ., Seoul (Korea, Republic of)

    2004-12-01

    The purpose of this study was to compare the findings on high-resolution CT (HRCT) of the chest with those on video-assisted thoracoscopy for the detection of bullae in patients who had undergone an operation for spontaneous pneumothorax, and we also wished to evaluate the relationship between the characteristics of bullae on HRCT and development of spontaneous pneumothorax. Fifty patients with spontaneous pneumothorax who had undergone both HRCT of the chest and video-assisted thoracoscopic surgery were included in the study. Spontaneous pneumothoraces were classified as either primary or secondary pneumothorax, and as initial or recurrent pneumothorax. The HRCT scans were obtained with 1 mm slice thickness and a 5 mm scan interval. Two radiologists retrospectively compared the HRCT findings of the chest with those findings on video-assisted thoracoscopy for the detection of bullae, and they evaluated the value of HRCT for diagnosing bullae. In addition, we assessed the size and number of bullae in these patients, and we also evaluated the relationship between those findings of bullae and the development of spontaneous pneumothorax. Bullae were detected in 40 patients by using video-assisted thoracoscopy, and HRCT showed bullae in 38 of these patients. Bullae were not identified with video-assisted thoracoscopy in the remaining ten patients, and among these ten patients, bullae were not demonstrated by HRCT in eight of them. Therefore, the sensitivity and specificity of HRCT for the detection of bullae were 95% (38/40| and 80% (8/10), respectively. The average size of the bullae of the affected hemithorax and the contralateral un-affected hemithorax was 1.97 cm {+-} 2.30 and 1.24 cm{+-}1.46, respectively. Pneumothorax was more frequently observed in the hemithorax with larger bullae (p<0.05). The average numerical grade of the bullae (3.38{+-}1.60) was higher in the affected hemithorax than in the contralateral un-affected hemithorax (2.96{+-}1.86), but there was

  8. Assessment of the bacterial contamination of hand air dryer in washrooms.

    Science.gov (United States)

    Alharbi, Sulaiman Ali; Salmen, Saleh Hussein; Chinnathambi, Arunachalam; Alharbi, Naiyf S; Zayed, M E; Al-Johny, Bassam O; Wainwright, Milton

    2016-03-01

    The present study was carried out, using standard techniques, to identify and count the bacterial contamination of hand air dryers, used in washrooms. Bacteria were isolated from the air flow, outlet nozzle of warm air dryers in fifteen air dryers used in these washrooms. Bacteria were found to be relatively numerous in the air flows. Bacterially contaminated air was found to be emitted whenever a warm air dryer was running, even when not being used for hand drying. Our investigation shows that Staphylococcus haemolyticus, Micrococcus luteus, Pseudomonas alcaligenes, Bacillus cereus and Brevundimonad diminuta/vesicularis were emitted from all of the dryers sampled, with 95% showing evidence of the presence of the potential pathogen S. haemolyticus. It is concluded that hot air dryers can deposit pathogenic bacteria onto the hands and body of users. Bacteria are distributed into the general environment whenever dryers are running and could be inhaled by users and none-users alike. The results provide an evidence base for the development and enhancement of hygienic hand drying practices. PMID:26981009

  9. Kinematic assessment of manual skill following functional hand surgery in tetraplegia

    NARCIS (Netherlands)

    van der Linde, H; Snoek, GJ; Knoop, HA; Mulder, T

    2000-01-01

    To determine whether surgical key grip reinforcement actually leads to a better movement ability we developed a procedure for the kinematic analysis of manual skill following hand surgery in tetraplegia. The functional results of surgery in 5 cases were examined by the kinematic analysis of drawing

  10. Cotinine-assessed second-hand smoke exposure and risk of cardiovascular disease in older adults

    OpenAIRE

    Jefferis, B. J.; Lawlor, D.A.; Ebrahim, S.; Wannamethee, S.G.; Feyerabend, C; Doig, M; McMeekin, L.; Cook, D. G.; Whincup, P H

    2010-01-01

    Objectives To examine whether second-hand smoke (SHS) exposure measured by serum cotinine is associated with increased coronary heart disease (CHD) and stroke risk among contemporary older British adults. Design Prospective population-based study with self-reported medical history and health behaviours. Fasting blood samples were analysed for serum cotinine and cardiovascular disease (CVD) risk markers. Setting Primary care centres in 25 British towns in 1998–2001. Patients 8512 60–79-year-ol...

  11. Hand Anatomy

    Science.gov (United States)

    ... Topics A-Z Videos Infographics Symptom Picker Hand Anatomy Hand Safety Fireworks Safety Lawnmower Safety Snowblower safety ... Topics A-Z Videos Infographics Symptom Picker Hand Anatomy Hand Safety Fireworks Safety Lawnmower Safety Snowblower safety ...

  12. A preliminary investigation assessing the viability of classifying hand postures in seniors

    Directory of Open Access Journals (Sweden)

    Menon Carlo

    2011-09-01

    Full Text Available Abstract Background Fear of frailty is a main concern for seniors. Surface electromyography (sEMG controlled assistive devices for the upper extremities could potentially be used to augment seniors' force while training their muscles and reduce their fear of frailty. In fact, these devices could both improve self confidence and facilitate independent leaving in domestic environments. The successful implementation of sEMG controlled devices for the elderly strongly relies on the capability of properly determining seniors' actions from their sEMG signals. In this research we investigated the viability of classifying hand postures in seniors from sEMG signals of their forearm muscles. Methods Nineteen volunteers, including seniors (70 years old in average and young people (27 years old in average, participated in this study and sEMG signals from four of their forearm muscles (i.e. Extensor Digitorum, Palmaris Longus, Flexor Carpi Ulnaris and Extensor Carpi Radialis were recorded. The feature vectors were built by extracting features from each channel of sEMG including autoregressive (AR model coefficients, waveform length and root mean square (RMS. Multi-class support vector machines (SVM was used as a classifier to distinguish between fifteen different essential hand gestures including finger pinching. Results Classification of hand gestures both in the pronation and supination positions of the arm was possible. Classified hand gestures were: rest, ulnar deviation, radial deviation, grasp and four different finger pinching configurations. The obtained average classification accuracy was 90.6% for the seniors and 97.6% for the young volunteers. Conclusions The obtained results proved that the pattern recognition of sEMG signals in seniors is feasible for both pronation and supination positions of the arm and the use of only four EMG channel is sufficient. The outcome of this study therefore validates the hypothesis that, although there are

  13. Serial assessment of myocardial thallium perfusion and fatty acid utilization in spontaneously hypertensive rats

    International Nuclear Information System (INIS)

    To evaluate the advantage of free fatty acid imaging on the detection of hypertrophied myocardium, we compared sequentially myocardial thallium and BMIPP (15-(p-iodophenyl)-3-(R,S)-methyl pentadecanoic acid) distribution in spontaneously hypertensive rat (SHR) using dual tracer autoradiography and in vivo pin-hole imaging. Autoradiography and pin-hole imaging showed uniform myocardial distribution of BMIPP and thallium within less than 27 weeks age SHR. In 40 weeks age SHR, thallium myocardial distribution showed uniform, however, BMIPP had focal decrease. Quantitative analysis of pin-hole images showed that myocardial BMIPP and thallium uptake ratio decreased according to the ages of SHR. Our data suggest that hypertension is associated with uniform myocardial perfusion and focal alternation in the substrate used for the performance of myocardial work. Based on the above autoradiographic and in vivo pin-hole imagings, I-123 BMIPP imaging may have a potential for early detection on hypertrophic myocardium compared to thallium perfusion in clinically hypertensive patients. (author)

  14. Clinical assessment of hip strength using a hand-held dynamometer is reliable

    DEFF Research Database (Denmark)

    Thorborg, K; Petersen, J; Magnusson, S P;

    2010-01-01

    Hip strength assessment plays an important role in the clinical examination of the hip and groin region. The primary aim of this study was to examine the absolute test-retest measurement variation concerning standardized strength assessments of hip abduction (ABD), adduction (ADD), external rotat...

  15. Assessing the contribution of the herpes simplex virus DNA polymerase to spontaneous mutations

    Directory of Open Access Journals (Sweden)

    Leary Jeffry J

    2002-05-01

    Full Text Available Abstract Background The thymidine kinase (tk mutagenesis assay is often utilized to determine the frequency of herpes simplex virus (HSV replication-mediated mutations. Using this assay, clinical and laboratory HSV-2 isolates were shown to have a 10- to 80-fold higher frequency of spontaneous mutations compared to HSV-1. Methods A panel of HSV-1 and HSV-2, along with polymerase-recombinant viruses expressing type 2 polymerase (Pol within a type 1 genome, were evaluated using the tk and non-HSV DNA mutagenesis assays to measure HSV replication-dependent errors and determine whether the higher mutation frequency of HSV-2 is a distinct property of type 2 polymerases. Results Although HSV-2 have mutation frequencies higher than HSV-1 in the tk assay, these errors are assay-specific. In fact, wild type HSV-1 and the antimutator HSV-1 PAAr5 exhibited a 2–4 fold higher frequency than HSV-2 in the non-HSV DNA mutatagenesis assay. Furthermore, regardless of assay, HSV-1 recombinants expressing HSV-2 Pol had error rates similar to HSV-1, whereas the high mutator virus, HSV-2 6757, consistently showed signficant errors. Additionally, plasmid DNA containing the HSV-2 tk gene, but not type 1 tk or LacZ DNA, was shown to form an anisomorphic DNA stucture. Conclusions This study suggests that the Pol is not solely responsible for the virus-type specific differences in mutation frequency. Accordingly, it is possible that (a mutations may be modulated by other viral polypeptides cooperating with Pol, and (b the localized secondary structure of the viral genome may partially account for the apparently enhanced error frequency of HSV-2.

  16. Probabilistic safety assessment of Tehran Research Reactor using systems analysis programs for hands-on integrated reliability evaluations

    International Nuclear Information System (INIS)

    Probabilistic safety assessment application is found to be a practical tool for research reactor safety due to intense involvement of human interactions in an experimental facility. In this document the application of the probabilistic safety assessment to the Tehran Research Reactor is presented. The level 1 practicabilities safety assessment application involved: Familiarization with the plant, selection of accident initiators, mitigating functions and system definitions, event tree constructions and quantifications, fault tree constructions and quantification, human reliability, component failure data base development and dependent failure analysis. Each of the steps of the analysis given above is discussed with highlights from the selected results. Quantification of the constructed models is done using systems analysis programs for hands-on integrated reliability evaluations software

  17. INFLUENCE OF EXPOSURE ASSESSMENT METHOD IN AN EPIDEMIOLOGIC STUDY OF TRIHALOMETHANE EXPOSURE AND SPONTANEOUS ABORTION

    Science.gov (United States)

    Trihalomethanes are common contaminants of chlorinated drinking water. Studies of their health effects have been hampered by exposure misclassification, due in part to limitations inherent in using utility sampling records. We used two exposure assessment methods, one based on ut...

  18. Assessing the association between omalizumab and arteriothrombotic events through spontaneous adverse event reporting

    Directory of Open Access Journals (Sweden)

    Ali AK

    2012-05-01

    Full Text Available Ayad K Ali, Abraham G HartzemaDepartment of Pharmaceutical Outcomes and Policy, College of Pharmacy, University of Florida, Gainesville, FL, USABackground: Omalizumab is a monoclonal antibody, indicated for the treatment of severe allergic asthma. In Europe, there have been concerns about the cardiovascular safety of omalizumab. The objective of this study was to analyze the association between omalizumab and arterial thrombotic events in a spontaneous adverse drug reaction reporting database in the US.Methods and materials: Reports of arterial thrombotic events submitted to the US Food and Drug Administration's Adverse Event Reporting System (AERS between 2004 and 2011 were retrieved and analyzed by the reporting odds ratio data mining algorithm. The reporting odds ratio of arterial thrombotic events for omalizumab was compared with specific asthma medications and all drugs in the AERS. Values ≥2 were considered significant safety signals. The Medical Dictionary for Regulatory Activities Preferred Terms were used to identify arterial thrombotic events (eg, stroke, myocardial infarction.Results: In total, 293,783 reports of arterial thrombotic events were retrieved (about 2% of all adverse drug reaction reports, corresponding to 2274 asthma drug-arterial thrombotic events pairs (omalizumab, 222; inhaled corticosteroids [ICS], 131; long-acting beta-agonists [LABA], 102; single-device combination ICS-LABA, 506; inhaled short-acting beta-agonists [SABA], 475; oral SABA, 6; inhaled antimuscarinics [AMC], 477; single-device combination AMC-SABA, 127; xanthines, 50; leukotriene modifiers, 174; and mast cell stabilizers, 4. Reporting odds ratio and 95% confidence interval values for omalizumab compared with other asthma drugs and all drugs in AERS were 2.75 (2.39–316 and 1.09 (0.95–1.24, respectively. Omalizumab ranked second after ICS in the risk of arterial thrombotic events, followed by AMC, AMC-SABA, and ICS-LABA.Conclusion: Omalizumab is

  19. Clinical assessment of hip strength using a hand-held dynamometer is reliable

    DEFF Research Database (Denmark)

    Thorborg, K; Petersen, J; Magnusson, S P;

    2010-01-01

    Hip strength assessment plays an important role in the clinical examination of the hip and groin region. The primary aim of this study was to examine the absolute test-retest measurement variation concerning standardized strength assessments of hip abduction (ABD), adduction (ADD), external...... by the same examiner. The test order was randomized to avoid systematic bias. Measurement variation between sessions was 3-12%. When the maximum value of four measurements was used, test-retest measurement variation was below 10% in 11 of the 12 individual hip strength tests and below 5% in five of...

  20. Spontaneous pneumothorax

    Directory of Open Access Journals (Sweden)

    Davari R

    1996-07-01

    Full Text Available A case with bilateral spontaneous pneumothorax was presented. Etiology, mechanism, and treatment were discussed on the review of literature. Spontaneous Pneumothorax is a clinical entity resulting from a sudden non traumatic rupture of the lung. Biach reported in 1880 that 78% of 916 patients with spontaneous pneumothorax had tuberculosis. Kjergaard emphasized 1932 the primary importance of subpleural bleb disease. Currently the clinical spectrum of spontaneous pneumothorax seems to have entered a third era with the recognition of the interstitial lung disease and AIDS as a significant etiology. Standard treatment is including: observation, thoracocentesis, tube thoracostomy. Chemical pleurodesis, bullectomy or wedge resection of lung with pleural abrasion and occasionally pleurectomy. Little information has been reported regarding the efficacy of such treatment in spontaneous pneumothorax secondary to non bleb disease

  1. What are the important components of the clinical assessment of hand problems in older adults in primary care? Results of a Delphi study

    Directory of Open Access Journals (Sweden)

    Dziedzic Krysia

    2010-08-01

    Full Text Available Abstract Background To identify clinical questions and assessments regarded by health care practitioners as important when assessing undifferentiated hand pain or problems in adults aged 50 years and over presenting to primary care. Methods A purposively selected panel of 26 UK-based Health Care Practitioners comprising occupational therapists, physiotherapists, rheumatologists and general practitioners, were invited to take part in a consensus study involving three postal rounds of a Delphi questionnaire with accompanying case scenarios. Participants were asked to generate questions and assessments (round 1, rate their importance (round 2, and vote on which items were most important (round 3. Results Sixteen Health Care Practitioners agreed to participate with 11 completing all three rounds. The first round of the Delphi study generated 156 questions and 143 assessments. After three rounds agreement was reached on the importance of 25 questions and 19 assessments. Questions were weighted towards current symptoms, but also included the history of previous hand problems, self-reported hand function, co-morbidity and general health. Observation and palpation of features predominated in the choice of assessment, but specific tests, grip strength, evaluation of sensation and hand function were also included. Conclusions A pool of clinical questions and assessments were generated by Health Care Practitioners, and those considered most important for assessing older adults presenting with undifferentiated hand pain and hand problems in primary care were identified. Further evaluation is required to establish the reliability and feasibility of using these questions and assessments in primary care. In particular, the relative contribution of these questions and assessments in evaluating the nature and severity of hand problems, assisting diagnosis, indicating appropriate management, and predicting future course requires further investigation.

  2. Retraining and assessing hand movement after stroke using the MusicGlove: comparison with conventional hand therapy and isometric grip training

    OpenAIRE

    Friedman, Nizan; Chan, Vicky; Reinkensmeyer, Andrea N; Beroukhim, Ariel; Zambrano, Gregory J; Bachman, Mark; Reinkensmeyer, David J

    2014-01-01

    Background It is thought that therapy should be functional, be highly repetitive, and promote afferent input to best stimulate hand motor recovery after stroke, yet patients struggle to access such therapy. We developed the MusicGlove, an instrumented glove that requires the user to practice gripping-like movements and thumb-finger opposition to play a highly engaging, music-based, video game. The purpose of this study was to 1) compare the effect of training with MusicGlove to conventional h...

  3. Assessment of Lower Limb Muscle Strength and Power Using Hand-Held and Fixed Dynamometry: A Reliability and Validity Study.

    Directory of Open Access Journals (Sweden)

    Benjamin F Mentiplay

    Full Text Available Hand-held dynamometry (HHD has never previously been used to examine isometric muscle power. Rate of force development (RFD is often used for muscle power assessment, however no consensus currently exists on the most appropriate method of calculation. The aim of this study was to examine the reliability of different algorithms for RFD calculation and to examine the intra-rater, inter-rater, and inter-device reliability of HHD as well as the concurrent validity of HHD for the assessment of isometric lower limb muscle strength and power.30 healthy young adults (age: 23±5 yrs, male: 15 were assessed on two sessions. Isometric muscle strength and power were measured using peak force and RFD respectively using two HHDs (Lafayette Model-01165 and Hoggan microFET2 and a criterion-reference KinCom dynamometer. Statistical analysis of reliability and validity comprised intraclass correlation coefficients (ICC, Pearson correlations, concordance correlations, standard error of measurement, and minimal detectable change.Comparison of RFD methods revealed that a peak 200 ms moving window algorithm provided optimal reliability results. Intra-rater, inter-rater, and inter-device reliability analysis of peak force and RFD revealed mostly good to excellent reliability (coefficients ≥ 0.70 for all muscle groups. Concurrent validity analysis showed moderate to excellent relationships between HHD and fixed dynamometry for the hip and knee (ICCs ≥ 0.70 for both peak force and RFD, with mostly poor to good results shown for the ankle muscles (ICCs = 0.31-0.79.Hand-held dynamometry has good to excellent reliability and validity for most measures of isometric lower limb strength and power in a healthy population, particularly for proximal muscle groups. To aid implementation we have created freely available software to extract these variables from data stored on the Lafayette device. Future research should examine the reliability and validity of these variables in

  4. Proton MRI as a noninvasive tool to assess elastase-induced lung damage in spontaneously breathing rats.

    Science.gov (United States)

    Quintana, Harry Karmouty; Cannet, Catherine; Zurbruegg, Stefan; Blé, François-Xavier; Fozard, John R; Page, Clive P; Beckmann, Nicolau

    2006-12-01

    Elastase-induced changes in lung morphology and function were detected in spontaneously breathing rats using conventional proton MRI at 4.7 T. A single dose of porcine pancreatic elastase (75 U/100 g body weight) or vehicle (saline) was administered intratracheally (i.t.) to male Brown Norway (BN) rats. MRI fluid signals were detected in the lungs 24 hr after administration of elastase and resolved within 2 weeks. These results correlated with perivascular edema and cellular infiltration observed histologically. Reductions in MRI signal intensity of the lung parenchyma, and increases in lung volume were detected as early as 2 weeks following elastase administration and remained uniform throughout the study, which lasted 8 weeks. Observations were consistent with air trapping resulting from emphysema detected histologically. In a separate experiment, animals were treated daily intraperitoneally (i.p.) with all-trans-retinoic acid (ATRA; 500 microg/kg body weight) or its vehicle (triglyceride oil) starting on day 21 after elastase administration and continuing for 12 days. Under these conditions, ATRA did not elicit a reversal of elastase-induced lung damage as measured by MRI and histology. The present approach complements other validated applications of proton MRI in experimental lung research as a method for assessing drugs in rat models of respiratory diseases. PMID:17029230

  5. Spontaneous Fission

    Science.gov (United States)

    Segre, Emilio

    1950-11-22

    The first attempt to discover spontaneous fission in uranium was made by [Willard] Libby, who, however, failed to detect it on account of the smallness of effect. In 1940, [K. A.] Petrzhak and [G. N.] Flerov, using more sensitive methods, discovered spontaneous fission in uranium and gave some rough estimates of the spontaneous fission decay constant of this substance. Subsequently, extensive experimental work on the subject has been performed by several investigators and will be quoted in the various sections. [N.] Bohr and [A.] Wheeler have given a theory of the effect based on the usual ideas of penetration of potential barriers. On this project spontaneous fission has been studied for the past several years in an effort to obtain a complete picture of the phenomenon. For this purpose the spontaneous fission decay constants {lambda} have been measured for separated isotopes of the heavy elements wherever possible. Moreover, the number {nu} of neutrons emitted per fission has been measured wherever feasible, and other characteristics of the spontaneous fission process have been studied. This report summarizes the spontaneous fission work done at Los Alamos up to January 1, 1945. A chronological record of the work is contained in the Los Alamos monthly reports.

  6. Development of hand-held nondestructive detection device for assessing meat freshness

    Science.gov (United States)

    Wei, Wensong; Peng, Yankun; Qiao, Lu

    2016-05-01

    Meat freshness is directly related to the health of consumers, and total volatile basic nitrogen (TVB-N) content is an important reference index for evaluating pork freshness. This paper attempted to measure TVB-N content for assessing pork meat freshness using a new self-developed portable and low cost detection device designed by ourselves basing on near infrared technique. The front-end part of this device was an integrated detection component containing a mini probe which was about 5cm in diameter circle. In the signal acquiring component, silicon photodiode detector was embedded in the center of light source in probe and spectral response range was 400-1100nm to receive diffuse light from pork meat surface in mini probe. The main circuits in this device included stabilized current supply circuit which was used to provide a stable power supply for each LED light source in probe and signal processing circuit which was utilized to complete signal amplification and A/D conversion, In addition, another vital function of the signal processing circuit was to analysis detection signals from mini probe in the detection component. For verifying this device performance, 58 pork samples with different freshness attributes and Multiple Linear Regression (MLR) mathematical method and ratio data processing algorithm were employed to build pork TVB-N content prediction model, and comparing with results from raw data model, the correlation coefficient of prediction and validation of TVB-N were 0.8027 and 0.7291 respectively, and the accuracy of predicting pork freshness was about 78.6%. This work demonstrates that it has the potential in nondestructive detection of TVB-N content in pork meat using this device, which can simplify related instruments design structure and reduce their development cost in future.

  7. Preparation of a continuative brochure as supplement to the evaluation hand-out for the assessment of study results

    International Nuclear Information System (INIS)

    In 2013 the Federal Office for Radiation Protection gave the responsibility to the Department of History, Philosophy and Ethics of Medicine (Institut GTE Med) in Aachen for the project ''Creating a practical hand-out for the assessment of study results for employees of local governments'' (FM 8855). The manual serves as a practical way for the qualitative evaluation of texts for persons who deal with the topics Mobile Communication and Health (for example communities or government agencies) in their profession. The main objective of the manual is to aid users in performing a faster and more efficient evaluation of texts by answering the containing questions. This approach is purely functional and precludes the placement of deeper information. At this point the new project FM 8862 started by ''Creating a continuative brochure in addition to the hand-out for the assessment of study results''. It continued the previous project FM 8855 to further develop the information which was up to this point purely functional. The brochure presents the issues in an overall context and provides valuable background knowledge. As a result, possible users get in a more casual and clear manner a deeper understanding of the evaluating of texts. It should be possible for a user to better evaluate texts and by obtaining arguments, thus being better prepared to engage with interested Laymen in an objective discussion. The brochure was submitted together with the existing manual for a practical test, which was attended by 21 target group-specific subjects. The study tested in detail the intelligibility, clarity, applicability, and the support of the brochure. The feedback of the test participants were then used as basis for the final optimization of the brochure. Project participants belong to the Department of History, Philosophy and Ethics of Medicine and the Research Center for Bioelectromagnetic Interaction of the RWTH Aachen University (femu).

  8. Validation of digit-length ratio (2D:4D) assessments on the basis of DXA-derived hand scans

    International Nuclear Information System (INIS)

    The second-to-fourth digit-length ratio (2D:4D) may be a correlate of prenatal sex steroids, and it has been linked to sporting prowess. The aim of the study was to validate dual-energy X-ray-absorptiometry (DXA) as a technique to assess 2D:4D in soccer players under 15 years of age (U-15). Paired X-ray and DXA scans of the left hands of 63 male U-15 elite soccer players (age: 14.0 ± 0.3 years) were performed, and 2D:4D was then compared between the two techniques. The 2D:4D measurements were performed twice by two blinded raters. Intrarater and interrater reliability, as well as agreement between the X-ray and the DXA assessments, were tested. Intrarater reliabilities of both raters using X-ray with intraclass correlation coefficients (ICCs) of 0.97 and 0.90 were excellent. Using DXA, the ICCs were 0.90 and 0.91 thus also showing excellent reliability. Interrater reliabilities were excellent using both the X-ray (ICC of 0.94) and the DXA (ICC of 0.90), assessments respectively. Bland-Altman plots demonstrated that the 2D:4D ratios of the two raters did not differ significantly between the X-ray and the DXA assessments. The standard errors of estimate were 0.01 for both techniques. The 95% limits of agreement of ±0.018 (±2.0%) and ±0.023 (±2.6%), respectively, were within the acceptable tolerance of 5%, and showed very good agreement. DXA offered a replicable technique for assessing 2D:4D in youth soccer players. Therefore, the DXA technique seems to be an alternative method for evaluating 2D:4D in youth sports

  9. Assessing handedness in pre-schoolers: Construction and initial validation of a hand preference test for 4-6-year-olds

    Directory of Open Access Journals (Sweden)

    URSULA KASTNER-KOLLER

    2007-09-01

    Full Text Available The aim of this study was to develop and validate a test for measuring the handedness of pre-school children. The newly developed test consists of 14 activities for checking various aspects of hand preference and was administered to a Viennese sample of 120 children of the ages 4 to 6.5 (18 left-handed, 17 ambidextrous and 85 right-handed. For the purpose of validation, the handedness of the children was assessed via a questionnaire given to parents, observation of the hand used to draw and testing of visual-motor skills as well as general level of development using the Viennese Development Test (WET, Kastner-Koller & Deimann, 2002. The hand preference test proved to be reliable (α=0.97. The inter-correlations of the handedness measures gathered (parent’s estimate as well as observation of drawing hand with the hand preference test substantiates the concurrent validity of the procedure. Right-handers exhibited the most pronounced hand preference; while the hand use of left-handers was significantly less lateralized. Irrespective of the direction of handedness, children with a consistent hand preference had higher total development scores than children with inconsistent use, i.e. frequent changes in hand used for a specific activity. Compared to ambidextrous and right-handed children, left-handers achieved significantly lower scores in the field of visual-motor skills. The results highlight the necessity of a reliable method for differentiated measurement of handedness as early as pre-school.

  10. Spontaneous fission

    International Nuclear Information System (INIS)

    Recent experimental results for spontaneous fission half-lives and fission fragment mass and kinetic-energy distributions and other properties of the fragments are reviewed and compared with recent theoretical models. The experimental data lend support to the existence of the predicted deformed shells near Z = 108 and N = 162. Prospects for extending detailed studies of spontaneous fission properties to elements beyond hahnium (element 105) are considered. (orig.)

  11. Hand Safety

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  12. Hand Infections

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  13. Hand Fractures

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  14. Assessment of skeletal age using MP 3 and hand-wrist radiographs and its correlation with dental and chronological ages in children

    OpenAIRE

    Bala M; Pathak A; Jain R

    2010-01-01

    The purpose of the study was to assess skeletal age using MP 3 and hand-wrist radiographs and to find the correlation amongst the skeletal, dental and chronological ages. One hundred and sixty North-Indian healthy children in the age group 8-14 years, comprising equal number of males and females were included in the study. The children were radiographed for middle phalanx of third finger (MP 3 ) and hand-wrist of the right hand and intra oral periapical X-ray for right permanent maxillary can...

  15. Spontaneous pneumothorax

    OpenAIRE

    Wakai, Abel P

    2008-01-01

    Spontaneous pneumothorax is defined as air entering the pleural space without any provoking factor, such as trauma, surgery, or diagnostic intervention. Incidence is 24/100,000 a year in men, and 10/100,000 in women in England and Wales, and the major contributing factor is smoking, which increases the likelihood by 22 times in men and by 8 times in women.While death from spontaneous pneumothorax is rare, rates of recurrence are high, with one study of men in the US finding a total recurre...

  16. Spontaneous pneumothorax

    OpenAIRE

    Wakai, Abel P

    2011-01-01

    Spontaneous pneumothorax is defined as air entering the pleural space without any provoking factor, such as trauma, surgery, or diagnostic intervention. Incidence is 24/100,000 a year in men, and 10/100,000 a year in women in England and Wales, and the major contributing factor is smoking, which increases the likelihood by 22 times in men and by 8 times in women.While death from spontaneous pneumothorax is rare, rates of recurrence are high, with one study of men in the US finding a total ...

  17. Android Hands

    DEFF Research Database (Denmark)

    Vlachos, Evgenios; Schärfe, Henrik

    2014-01-01

    Humans have adjusted their space, their actions, and their performed tasks according to their morphology, abilities, and limitations. Thus, the properties of a social robot should fit within these predetermined boundaries when, and if it is beneficial for the user, and the notion of the task. On...... such occasions, android and humanoid hand models should have similar structure, functions, and performance as the human hand. In this paper we present the anatomy, and the key functionalities of the human hand followed by a literature review on android/humanoid hands for grasping and manipulating...

  18. Psycho-physiological assessment of a prosthetic hand sensory feedback system based on an auditory display: a preliminary study

    Directory of Open Access Journals (Sweden)

    Gonzalez Jose

    2012-06-01

    Full Text Available Abstract Background Prosthetic hand users have to rely extensively on visual feedback, which seems to lead to a high conscious burden for the users, in order to manipulate their prosthetic devices. Indirect methods (electro-cutaneous, vibrotactile, auditory cues have been used to convey information from the artificial limb to the amputee, but the usability and advantages of these feedback methods were explored mainly by looking at the performance results, not taking into account measurements of the user’s mental effort, attention, and emotions. The main objective of this study was to explore the feasibility of using psycho-physiological measurements to assess cognitive effort when manipulating a robot hand with and without the usage of a sensory substitution system based on auditory feedback, and how these psycho-physiological recordings relate to temporal and grasping performance in a static setting. Methods 10 male subjects (26+/-years old, participated in this study and were asked to come for 2 consecutive days. On the first day the experiment objective, tasks, and experiment setting was explained. Then, they completed a 30 minutes guided training. On the second day each subject was tested in 3 different modalities: Auditory Feedback only control (AF, Visual Feedback only control (VF, and Audiovisual Feedback control (AVF. For each modality they were asked to perform 10 trials. At the end of each test, the subject had to answer the NASA TLX questionnaire. Also, during the test the subject’s EEG, ECG, electro-dermal activity (EDA, and respiration rate were measured. Results The results show that a higher mental effort is needed when the subjects rely only on their vision, and that this effort seems to be reduced when auditory feedback is added to the human-machine interaction (multimodal feedback. Furthermore, better temporal performance and better grasping performance was obtained in the audiovisual modality. Conclusions The performance

  19. Assessment of skeletal age using MP 3 and hand-wrist radiographs and its correlation with dental and chronological ages in children

    Directory of Open Access Journals (Sweden)

    Bala M

    2010-06-01

    Full Text Available The purpose of the study was to assess skeletal age using MP 3 and hand-wrist radiographs and to find the correlation amongst the skeletal, dental and chronological ages. One hundred and sixty North-Indian healthy children in the age group 8-14 years, comprising equal number of males and females were included in the study. The children were radiographed for middle phalanx of third finger (MP 3 and hand-wrist of the right hand and intra oral periapical X-ray for right permanent maxillary canine. Skeletal age was assessed from MP 3 and hand-wrist radiographs according to the standards of Greulich and Pyle. The dental age was assessed from IOPA radiographs of right permanent maxillary canine based on Nolla′s calcification stages. Skeletal age from MP 3 and hand-wrist radiographs shows high correlation in all the age groups for both sexes. Females were advanced in skeletal maturation than males. Skeletal age showed high correlation with dental age in 12-14 years age group. Chronological age showed inconsistent correlation with dental and skeletal ages.

  20. Hand Washing

    Science.gov (United States)

    ... They asked people questions about their hand-washing habits and also watched people in public restrooms. The results were kind of gross. For example: People don't always wash their hands after using the bathroom — 96% of adults say they always wash their ...

  1. Relationship between the Short-Term Visual Memory and IQ in the Right-and Left-Handed Subjects Trained in Different Educational Programs: I-General Assessment

    Science.gov (United States)

    Yilmaz, Yavuz; Yetkin, Yalçin

    2014-01-01

    The relationship between mean intelligence quotient (IQ), hand preferences and visual memory (VM) were investigated on (N = 612) males and females students trained in different educational programs in viewpoint of laterality. IQ was assessed by cattle's culture Fair intelligence test-A (CCFIT-A). The laterality of the one side of the body was…

  2. Assessment of technical protocols for novel embryonic stem cell tests with molecular markers (Hand1- and Cmya1-ESTs): a preliminary cross-laboratory performance analysis.

    Science.gov (United States)

    Suzuki, Noriyuki; Yamashita, Norihisa; Koseki, Naoteru; Yamada, Toru; Kimura, Yutaka; Aiba, Setsuya; Toyoizumi, Tomoyasu; Watanabe, Mika; Ohta, Ryo; Tanaka, Noriho; Saito, Koichi

    2012-01-01

    The Hand1- and Cmya1-ESTs are novel short-term tests for embryotoxic chemicals using genetically engineering mouse ES cells for luciferase reporter gene assays. These ESTs allow convenient determination of differentiation toxicity and cell viability in a short duration with high throughput 96-well microplates for prediction of embryotoxicity of chemicals. To assess the Hand1-EST technical protocol, we firstly compared reporter gene assay and cytotoxicity test data for a representative compound (hydroxyurea) from four different laboratories with tests carried out under the same experimental conditions. Extensive investigations of the Hand1- and Cmya1-ESTs were then performed to explore reproducibility by comparing a set of 6 well-known test chemicals, including hydroxyurea, across the laboratories. The results gave good correspondence in all four laboratories, indicating that transferability, intra-laboratory variability and inter-laboratory variability of the present technical protocols of the ESTs were sufficient to conduct further validation studies. PMID:22863864

  3. Assessing the impact of representational and contextual problem features on student use of right-hand rules

    CERN Document Server

    Kustusch, Mary Bridget

    2015-01-01

    Students in introductory physics struggle with vector algebra and these challenges are often associated with contextual and representational features of the problems. Performance on problems about cross product direction is particularly poor and some research suggests that this may be primarily due to misapplied right-hand rules. However, few studies have had the resolution to explore student use of right-hand rules in detail. This study reviews literature in several disciplines, including spatial cognition, to identify ten contextual and representational problem features that are most likely to influence performance on problems requiring a right-hand rule. Two quantitative measures of performance (correctness and response time) and two qualitative measures (methods used and type of errors made) were used to explore the impact of these problem features on student performance. Quantitative results are consistent with expectations from the literature, but reveal that some features (such as the type of reasoning...

  4. A multicenter questionnaire investigation of attitudes toward hand hygiene, assessed by the staff in fifteen hospitals in Denmark and Norway

    DEFF Research Database (Denmark)

    Zimakoff, J; Kjelsberg, A B; Larsen, S O;

    1992-01-01

    physicians reported significantly fewer instances of hand hygiene (HH) per day than did those in other medical professions. Male physicians reported significantly fewer HH per day than did their female colleagues. Significant differences were found among staff groups in emphasis on factors motivating...... to these statements correlated well with the stated frequency of HH in staff groups with relatively many (9 to 24) patient contacts per day. Many studies have revealed low standards of HH in health care settings. Whenever HH is taught, the significance of HH for the prevention of infection is always stressed...... evaluation of the possibly detrimental effects of current hand washing agents should also be carried out....

  5. An Assessment of Spontaneous Vegetation Recovery in Aggregate Quarries in Coastal Sand Dunes in Buenos Aires Province, Argentina

    Science.gov (United States)

    Fernández Montoni, María Victoria; Fernández Honaine, Mariana; del Río, Julio Luis

    2014-08-01

    Sand dune quarries are a location of common aggregate mining activity developed in coastal areas, especially in the southeast Buenos Aires province, Argentina. In this article, spontaneous plant development after extraction activity ceased was evaluated. Five areas (three quarried and two natural/conservation areas) were sampled for plant cover and composition as well as sediment characterization. Different indexes, principal component analysis, and cluster analyses were applied to compare the areas. The dominant families observed in four of the five areas were Asteraceae, Poaceae, and Cyperaceae, and most of the species are commonly found in sandy and humid soils and/or modified/anthropized ones. Percentages of plant cover increased with time because of the cessation of active aggregate extraction. Indexes and multivariate analyses showed that it was possible to distinguish quarried and natural areas based on composition and vegetation cover. The distribution of plant species among the four areas responded to the presence of mining activity, but it also responded to the topographical position and consequently the depth of the groundwater level. Besides these differences, the four areas shared many native species. The results might indicate that once the activity has ceased, quarried areas may spontaneously and quickly develop a plant community with some similarities to those present in the nonquarried areas. However, given that the extracting activity involves the removal of the soil, revegetation of this type of environment depends on the presence of natural areas in the surroundings, which can serve as a source of seeds and propagules for plant regeneration.

  6. Magic Hands

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    THE two most amazing things on the planet may well be the human brain and human hands. When they work together, the results can be enchanting. At an international folk art fair held recently in Beijing, artisans and masters from Japan, India, Switzerland, Peru, South

  7. Hand eczema

    DEFF Research Database (Denmark)

    Ibler, K.S.; Jemec, G.B.E.; Flyvholm, M.-A.;

    2012-01-01

    /materials/methods. A survey of 3181 healthcare workers was performed. Data were analysed with logistic regression. Data on sick leave and notification to the authorities were obtained. Results. The response rate was 71% (2274 of 3181). The 1-year prevalence of hand eczema was 21%, and was positively associated with...

  8. Hand Therapy

    Science.gov (United States)

    ... lasting pain Help to reduce sensitivity from nerve problems Learning to feel again after a nerve injury Learning ... to help prevent or improve stiffness (Figure 1) Learning to complete ... employers about preventing problems for workers with hand or arm symptoms. They ...

  9. Assessing the impact of representational and contextual problem features on student use of right-hand rules

    Science.gov (United States)

    Kustusch, Mary Bridget

    2016-06-01

    Students in introductory physics struggle with vector algebra and these challenges are often associated with contextual and representational features of the problems. Performance on problems about cross product direction is particularly poor and some research suggests that this may be primarily due to misapplied right-hand rules. However, few studies have had the resolution to explore student use of right-hand rules in detail. This study reviews literature in several disciplines, including spatial cognition, to identify ten contextual and representational problem features that are most likely to influence performance on problems requiring a right-hand rule. Two quantitative measures of performance (correctness and response time) and two qualitative measures (methods used and type of errors made) were used to explore the impact of these problem features on student performance. Quantitative results are consistent with expectations from the literature, but reveal that some features (such as the type of reasoning required and the physical awkwardness of using a right-hand rule) have a greater impact than others (such as whether the vectors are placed together or separate). Additional insight is gained by the qualitative analysis, including identifying sources of difficulty not previously discussed in the literature and revealing that the use of supplemental methods, such as physically rotating the paper, can mitigate errors associated with certain features.

  10. Bilateral hand transplantation: Functional benefits assessment in five patients with a mean follow-up of 7.6 years (range 4-13 years).

    Science.gov (United States)

    Bernardon, Laurence; Gazarian, Aram; Petruzzo, Palmina; Packham, Tara; Guillot, Michel; Guigal, Vincent; Morelon, Emmanuel; Pan, Hua; Dubernard, Jean-Michel; Rizzo, Christophe; Feugier, Patrick; Streichenberger, Thibault; Bincaz, Ludovic; Urien, Jean-Pierre; Mezzadri, Guillaume; Rousselon, Thibault; Plotard, Franck; Seulin, Christian; Braye, Fabienne; Mojallal, Ali; Herzberg, Guillaume; Kanitakis, Jean; Abrahamyan, Davit; Kay, Simon; Badet, Lionel

    2015-09-01

    Between January 2000 and July 2009, five adults who had suffered bilateral traumatic below-elbow amputations, received bilateral hand-forearm allografts performed by the Lyon team. We report the functional benefits achieved over a mean follow-up period of 7.6 years (range 4-13 years), up to December 31st, 2013. Clinical measurement is hampered by the lack of specific validated assessment tools, obliging us to use non-specific standardized evaluation means. Our assessment shows that the restoration of motion, strength, and sensibility are fair. Functional results (Carroll upper extremity function test, 400-point test, Activities of daily living) are good, as well as quality of life evaluation (RAND-36). Subjective and overall results explored with questionnaires - Disabilities of the Arm Shoulder and Hand (DASH), Hand Transplantation Score System (HTSS), are very good. Improvement was seen to continue during the first three years, and then tend to become stable. Continued efforts should be directed at designing comprehensive, condition-specific, reliable outcome measurement tools. Continuous monitoring and evaluation of patients is required to assess the long-term risk-benefit balance. PMID:26297387

  11. Medical assessment of spontaneous pneumothorax in aircrew%飞行人员自发性气胸的航空医学鉴定

    Institute of Scientific and Technical Information of China (English)

    付兆君; 徐先荣; 熊巍; 朱彦君; 刘红巾; 崔丽; 刘晶

    2013-01-01

    Objective To put forward the suggestions for medical assessment of spontaneous pneumothorax in aircrew by summarizing its diagnosis, treatment and medical assessment in a pilot. Methods The diagnosis, treatment and medical assessment of spontaneous pneumothorax in a pilot admitted to our hospital were retrospectively analyzed. Suggestions were put forward for the medical assessment of spontaneous pneumothorax in aircrew by summarizing the clinical data about 5 aircrew with blebs found in physical examination in the past 5 years. Results The patient was a male pilot aged 39 years. He was admitted to our hospital because of mild chest pain. X-ray showed hydropneumothorax in his right chest with 70%of the right lung compressed. Six months after he was treated with closed thoracic drainage and oxygen inhalation his lungs were fully expanded with their function recovered. Medical assessment concluded that he was qualified for flying a double-seats aircraft. No pneumothorax was detected in physical examination of the other 5 aircrew with blebs. Conclusion Whether aircrew with spontaneous pneumothorax are qualified to fly should be assessed depending on the attacks of pneumothorax, sites of blebs, types of aircraft, and desire of aircrew to fly.%目的:总结1例飞行员自发性气胸的诊治及鉴定过程,提出飞行人员自发性气胸的鉴定建议。方法回顾我科收治的1例自发性气胸飞行员的诊治、鉴定过程,并总结我院近5年体检发现的5例肺大疱飞行人员资料,提出自发性气胸飞行人员的航空医学鉴定建议。结果男性飞行员,39岁,因劳累后感右侧胸部隐痛入院。胸片示右侧液气胸,右肺压缩70%。给予胸腔闭式引流、吸氧等治疗。6个月后复查肺完全复张,肺功能恢复正常。医学鉴定结论为双座飞行合格。其他5例体检发现肺上有肺大疱的飞行人员均未发生气胸。结论自发性气胸在飞行结论鉴定时应综合

  12. Effect of database profile variation on drug safety assessment: an analysis of spontaneous adverse event reports of Japanese cases

    Directory of Open Access Journals (Sweden)

    Nomura K

    2015-06-01

    paroxetine. Signals identified by GPS for the JP and FAERS-JP, as referenced by Japanese labeling, showed higher positive sensitivity than was expected. Conclusion: The FAERS-JP was different from the JADER. Signals derived from both datasets identified different results, but shared certain signals. Discrepancies in type of AEs, drugs reported, and average number of AEs per case were potential contributing factors. This study will help those concerned with pharmacovigilance better understand the use and pitfalls of using spontaneous AE data. Keywords: drug safety, spontaneous reports system, Japan, reporting disproportionality 

  13. Diagnostic performance of three-dimensional MR maximum intensity projection for the assessment of synovitis of the hand and wrist in rheumatoid arthritis: A pilot study

    Energy Technology Data Exchange (ETDEWEB)

    Li, Xubin, E-mail: lixb@bjmu.edu.cn [Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Reseaech Center for Cancer, Tianjin, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060 (China); Liu, Xia; Du, Xiangke [Department of Radiology, Peking University People' s Hospital, Beijing 100044 (China); Ye, Zhaoxiang [Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Reseaech Center for Cancer, Tianjin, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060 (China)

    2014-05-15

    Purpose: To evaluate the diagnostic performance of three-dimensional (3D) MR maximum intensity projection (MIP) in the assessment of synovitis of the hand and wrist in rheumatoid arthritis (RA) compared to 3D contrast-enhanced magnetic resonance imaging (CE-MRI). Materials and methods: Twenty-five patients with RA underwent MR examinations. 3D MR MIP images were derived from the enhanced images. MR images were reviewed by two radiologists for the presence and location of synovitis of the hand and wrist. The diagnostic sensitivity, specificity and accuracy of 3D MIP were, respectively, calculated with the reference standard 3D CE-MRI. Results: In all subjects, 3D MIP images yielded directly and clearly the presence and location of synovitis with just one image. Synovitis demonstrated high signal intensity on MIP images. The k-values for the detection of articular synovitis indicated excellent interobserver agreements using 3D MIP images (k = 0.87) and CE-MR images (k = 0.91), respectively. 3D MIP demonstrated a sensitivity, specificity and accuracy of 91.07%, 98.57% and 96.0%, respectively, for the detection of synonitis. Conclusion: 3D MIP can provide a whole overview of lesion locations and a reliable diagnostic performance in the assessment of articular synovitis of the hand and wrist in patients with RA, which has potential value of clinical practice.

  14. Rapid method for assessment of rock reservoir properties according to the data of spontaneous potential and natural radioactivity logging

    International Nuclear Information System (INIS)

    Investigations were carried on for developing a rapid method for assessment of rock reservoir properties in petroleum and gas wells. During well investigations data on clayiness is given with gamma logging (GL). With provision for analytical and empirical dependences a nomogram for operative assessment of reservoir properties from the GL data and intrinsic polarization has been designed. Relative error of the calculations is about 7% which is acceptable for rapid assessment

  15. Assessment of spontaneous correction of lumbar curve after fusion of the main thoracic in Lenke 1 adolescent idiopathic scoliosis☆

    Science.gov (United States)

    Mizusaki, Danilo; Gotfryd, Alberto Ofenhejm

    2016-01-01

    Objective To evaluate the clinical and radiographic response of the lumbar curve after fusion of the main thoracic, in patients with adolescent idiopathic scoliosis of Lenke type 1. Methods Forty-two patients with Lenke 1 adolescent idiopathic scoliosis who underwent operations via the posterior route with pedicle screws were prospectively evaluated. Clinical measurements (size of the hump and translation of the trunk in the coronal plane, by means of a plumb line) and radiographic measurements (Cobb angle, distal level of arthrodesis, translation of the lumbar apical vertebral and Risser) were made. The evaluations were performed preoperatively, immediately postoperatively and two years after surgery. Results The mean Cobb angle of the main thoracic curve was found to have been corrected by 68.9% and the lumbar curve by 57.1%. Eighty percent of the patients presented improved coronal trunk balance two years after surgery. In four patients, worsening of the plumb line measurements was observed, but there was no need for surgical intervention. Less satisfactory results were observed in patients with lumbar modifier B. Conclusions In Lenke 1 patients, fusion of the thoracic curve alone provided spontaneous correction of the lumbar curve and led to trunk balance. Less satisfactory results were observed in curves with lumbar modifier B, and this may be related to overcorrection of the main thoracic curve. PMID:26962505

  16. Assessment of workers' exposure to hand-arm and whole body vibration in one of the furniture industries in east of Tehran

    Directory of Open Access Journals (Sweden)

    Ramazan Mirzaei

    2015-01-01

    Full Text Available Workers in wood industry are exposed to vibration and its damages. The purpose of this study was to evaluate exposure to hand-arm and whole body vibration in the wood industry. In this study, the parameters of whole body and hand-arm vibrations such as effective acceleration, overall equivalent acceleration, Vibration Dose Value and crest factor were studied on two Thicknessing planes, two sliding panel saw machines, two orbital sander, and three operators of perforate procedure. Assessments were done by the use of an oscillator and an analyzer of Svantak Co. Evaluating Hand-arm and whole body vibrations were conducted based on ISO 5349-1, ISO 5349-2 and ISO 2631-1 standards, respectively, and the findings/ the evaluated data were analyzed. The mean amount of daily exposure to hand-arm vibration (RMS in Thicknessing plane, Orbital Sander and Sliding panel saw machine operators are respectively 5.56, 5.49 and 3.37 m/s2 . In addition, the average crest factor of the 3 jobs is higher than 6. Mean of daily Exposure to whole body vibration in 3 machine operators of Thicknessing plane, perforate procedure and Sliding panel saw is respectively, 0.28, 0.24 and 0.17 meters per square second. The crest factor for all the exposures was to be less than 6 and the mean of the calculated daily vibration dose equaled 5.83 with the standard deviation of 0.87( m⁄s^1.75 . In further measured situations, exposure to hand-arm vibration is more than the standard level, so engineering and management measures are required to reduce the amount of exposure and support the health of the operators and the equipment.

  17. Implants in the hand; Implantate der Hand

    Energy Technology Data Exchange (ETDEWEB)

    Wanivenhaus, A. [Medizinische Universitaet, Universitaetsklinik fuer Orthopaedie, Wien (Austria)

    2006-09-15

    Increasingly, implants in the region of hand joints and the wrist represent an alternative for the treatment of post-traumatic, inflamed, or degenerative joint damage. The diversity of hand functions also results in varied solutions, which are effective in their stability, mobility, and distraction. Different materials are necessary for this, and they require subtile radiological control. The native X-ray represents the substantial method to observe migration of the implants. Each interface between titanium, ceramic, zirconium, pyrocarbon, and silicon to the bone has to be assessed differently in order to obtain a relevant statement. The finger joints and to a limited extent the wrist represent the artificial joints with limited alternative therapy. Other implants in the hand should only be applied after strict indication and patient compliance, as arthrodesis and resection arthroplasty have shown very good long-term results. (orig.) [German] Implantate im Bereich der Gelenke der Hand und des Handgelenks stellen zunehmend Alternativen bei der Versorgung posttraumatischer, entzuendlicher oder degenerativer Gelenkschaeden dar. Die Vielfalt der Handfunktionen fuehrt auch zu unterschiedlichen Loesungen, die durch Stabilitaet, Mobilitaet und Distraktion wirksam werden. Dafuer sind unterschiedliche Materialien erforderlich, die eine subtile radiologische Kontrolle erfordern. Das Nativroentgen stellt das wesentlichste Verfahren zur Verlaufsbeobachtung von Implantaten dar. Das Interface zwischen Titan, Keramik, Zirkonium, Pyrokarbon und Silikon zum Knochen muss unterschiedlich bewertet werden, um relevante Aussagen treffen zu koennen. Die Fingergelenke und in begrenztem Ausmass auch das Handgelenk stellen Kunstgelenke mit geringen Alternativtherapiemoeglichkeiten dar. Die uebrigen Implantate der Hand sollten nur bei strenger Indikationsstellung und hoher Patientencompliance Anwendung finden, da Arthrodese oder Resektionsarthroplastik gute Langzeitresultate aufweisen. (orig.)

  18. The Marble-Hand Illusion.

    Directory of Open Access Journals (Sweden)

    Irene Senna

    Full Text Available Our body is made of flesh and bones. We know it, and in our daily lives all the senses constantly provide converging information about this simple, factual truth. But is this always the case? Here we report a surprising bodily illusion demonstrating that humans rapidly update their assumptions about the material qualities of their body, based on their recent multisensory perceptual experience. To induce a misperception of the material properties of the hand, we repeatedly gently hit participants' hand with a small hammer, while progressively replacing the natural sound of the hammer against the skin with the sound of a hammer hitting a piece of marble. After five minutes, the hand started feeling stiffer, heavier, harder, less sensitive, unnatural, and showed enhanced Galvanic skin response (GSR to threatening stimuli. Notably, such a change in skin conductivity positively correlated with changes in perceived hand stiffness. Conversely, when hammer hits and impact sounds were temporally uncorrelated, participants did not spontaneously report any changes in the perceived properties of the hand, nor did they show any modulation in GSR. In two further experiments, we ruled out that mere audio-tactile synchrony is the causal factor triggering the illusion, further demonstrating the key role of material information conveyed by impact sounds in modulating the perceived material properties of the hand. This novel bodily illusion, the 'Marble-Hand Illusion', demonstrates that the perceived material of our body, surely the most stable attribute of our bodily self, can be quickly updated through multisensory integration.

  19. Hand-held dynamometry in patients with haematological malignancies: Measurement error in the clinical assessment of knee extension strength

    Directory of Open Access Journals (Sweden)

    Uebelhart Daniel

    2009-03-01

    Full Text Available Abstract Background Hand-held dynamometry is a portable and inexpensive method to quantify muscle strength. To determine if muscle strength has changed, an examiner must know what part of the difference between a patient's pre-treatment and post-treatment measurements is attributable to real change, and what part is due to measurement error. This study aimed to determine the relative and absolute reliability of intra and inter-observer strength measurements with a hand-held dynamometer (HHD. Methods Two observers performed maximum voluntary peak torque measurements (MVPT for isometric knee extension in 24 patients with haematological malignancies. For each patient, the measurements were carried out on the same day. The main outcome measures were the intraclass correlation coefficient (ICC ± 95%CI, the standard error of measurement (SEM, the smallest detectable difference (SDD, the relative values as % of the grand mean of the SEM and SDD, and the limits of agreement for the intra- and inter-observer '3 repetition average' and the 'highest value of 3 MVPT' knee extension strength measures. Results The intra-observer ICCs were 0.94 for the average of 3 MVPT (95%CI: 0.86–0.97 and 0.86 for the highest value of 3 MVPT (95%CI: 0.71–0.94. The ICCs for the inter-observer measurements were 0.89 for the average of 3 MVPT (95%CI: 0.75–0.95 and 0.77 for the highest value of 3 MVPT (95%CI: 0.54–0.90. The SEMs for the intra-observer measurements were 6.22 Nm (3.98% of the grand mean (GM and 9.83 Nm (5.88% of GM. For the inter-observer measurements, the SEMs were 9.65 Nm (6.65% of GM and 11.41 Nm (6.73% of GM. The SDDs for the generated parameters varied from 17.23 Nm (11.04% of GM to 27.26 Nm (17.09% of GM for intra-observer measurements, and 26.76 Nm (16.77% of GM to 31.62 Nm (18.66% of GM for inter-observer measurements, with similar results for the limits of agreement. Conclusion The results indicate that there is acceptable relative reliability

  20. Task difficulty and inertial properties of hand-held tools: An assessment of their concurrent effects on precision aiming.

    Science.gov (United States)

    Silva, Paula L; Bootsma, Reinoud J; Figueiredo, Priscilla Rezende Pereira; Avelar, Bruna Silva; de Andrade, André Gustavo Pereira; Fonseca, Sérgio T; Mancini, Marisa Cotta

    2016-08-01

    Aiming hand-held tools at targets in space entails adjustments in the dynamical organization of aiming patterns according to the required precision. We asked whether and how these adjustments are modified by the tool's mass distribution. Twelve participants performed reciprocal aiming movements with a 50-cm long wooden probe. Kinematic patterns of probe movements were used as a window into the behavioral dynamic underlying performance of a reciprocal aiming task. We crossed three levels of task difficulty (IDs 2.8, 4.5 and 6.1) with two types of probe varying in their mass distribution (proximal vs distal loading). Movement duration was affected by task difficulty and probe loading (shorter for larger targets and proximal probe loading). Progressive deviations from a sinusoidal movement pattern were observed as task difficulty increased. Such deviations were more pronounced with proximal probe loading. Results point to a higher degree of non-linearity in aiming dynamics when the probe was loaded proximally, which might reflect employment of additional perceptual-motor processes to control the position of its less stable tip at the vicinity of the targets. More generally, the effects of probe loading on aiming pattern and dynamics suggest that perceptual-motor processes responding to task level constraints are sensitive to, and not independent from, biomechanical, end-effector constraints. PMID:27219738

  1. Beneficial effects of tai chi on women's skeletal status assessed by quantitative ultrasound at the hand phalanges - one-year follow-up study

    International Nuclear Information System (INIS)

    Objectives. The advantageous effect of physical exercise on bones has been proven. Quantitative ultrasound (QUS) at different skeletal sites is an accepted method for indirect and noninvasive assessment of bone quality and fracture risk. Earlier, the present authors showed higher values of ultrasound transmission in the hand phalanges of a group of Polish women practicing Tai Chi. The aim of the present study was a prospective assessment of skeletal status in women practicing Tai Chi. Material and Methods. One-year follow-up of skeletal status was assessed using QUS measurements at the hand phalanges in a group of 46 exercising women (mean age: 59.3 ± 8.7 years). Results. At follow-up, increases in the mean amplitude-dependent speed of sound (Ad-SoS) from 1995 ± 80 to 2012 ± 75 m/s (p = 0.001) and mean Z-score from 0.673 ± 1.054 to 1.053 ± 1.178 (p = 0.0005) were observed in the exercising subjects. These changes revealed statistically significant positive correlation with subject age (r = 0.39, p = 0.007 and r = 0.35, p 0.018, respectively). The increase in Ad-SoS exceeded the value of the '' least significant change '' in 19 subjects (41%) of the total group and in 2 (22%) incorporated into medithe pre- and postmenopausal subgroups, respectively. Conclusions. A beneficial effect of regular Tai Chi exercise on skeletal status as assessed by phalangeal QUS is observed in older women. Tai Chi gymnastics may be recommended in the prevention of postmenopausal osteoporosis, especially in older individuals. (authors)

  2. How Do Learning Outcomes, Assessments and Student Engagement in a Fully Online Geoscience Laboratory Compare to Those Of The Original Hands-on Exercise?

    Science.gov (United States)

    Jones, F. M.

    2015-12-01

    In a third year geoscience elective for BSc majors, we adapted several active f2f learning strategies for an equivalent fully online version of the course. In particular, we converted a hands-on laboratory including analysis and interpretation of hand-specimens, sketching results and peer-to-peer discussion of scientific implications. This study compares learning outcomes in both formats and describes resources that make engaging, effective and efficient learning experiences for large classes in an asynchronous online environment. Our two hypotheses are: 1) a hands-on geology lab exercise can be converted for efficient fully online use without sacrificing feedback and assessment opportunities; 2) students find either the f2f or DE versions equally effective and enjoyable as learning experiences. Key components are an authentic context, interactive resources including sketching, strategies that enable efficient assessment and feedback on solo and group work, and asynchronous yet productive interaction with peers. Students in the f2f class handle real rock and fossil specimens, work with peers in the lab and classroom, and deliver most results including annotated figures on paper. DE students complete identical tasks using interactive high resolution figures and videos of specimens. Solo work is first delivered for automated assessment and feedback, then students engage asynchronously in small groups to improve results and discuss implications. Chronostratigraphy and other interpretations are sketched on prepared template images using a simple open-source sketching app that ensures equal access and consistent results that are efficient to assess by peers and instructors. Learning outcomes based on subsequent quizzes, sketches, and lab results (paper for f2f students and automated data entry for DE students), show that f2f and online students demonstrate knowledge and scientific interpretations of comparable quality. Effective engagement and group work are

  3. Assessment of the exposure of workers to the insecticide imidacloprid during application on various field crops by a hand-held power sprayer.

    Science.gov (United States)

    Choi, Hoon; Moon, Joon-Kwan; Kim, Jeong-Han

    2013-11-13

    Exposure assessment and risk assessment for imidacloprid were conducted for agricultural workers through mixing/loading and application with a power sprayer in four kinds of crop fields. The spray suspension was prepared with 10% wettable powder (250 g) for 5 min and applied on field crops for 1 h. A patch method and a personal air sampler with XAD-2 resin were used to monitor the dermal and inhalation exposure, respectively. In mixing/loading, the total dermal exposure on the whole body was 0.2 (cucumber) to 2.0 (apple) mg and the most exposed part of body was the hand (48-100% of total exposure). During the application of imidacloprid, whole dermal exposure was in the range of 2.9 (apple) to 9.5 (green pepper) mg. The primary sites exposed to pesticides were legs (51-79% of total exposure) in cucumber, green pepper, and paddy fields, whereas the primary sites were hands (35% of total exposure) in the apple field. The inhalation exposure was determined to be 0.2 (paddy) to 2.8 (cucumber) μg and 0.2 (paddy) to 3.0 (cucumber) μg during mixing/loading and application, respectively. The absorbable quantity of exposure and the margin of safety were determined for risk assessment. Workers were exposed through inhalation as 23-93 and 2-11% of the absorbable quantity of exposure during mixing and application, respectively. The margin of safety of all cases was much higher than 1, indicating the lowest possibility of risk. PMID:24111779

  4. Bilateral spontaneous rupture of flexor digitorum profundus tendons.

    LENUS (Irish Health Repository)

    O'Sullivan, S T

    2012-02-03

    Spontaneous tendon rupture is an unusual condition usually associated with underlying disease processes such as rheumatoid arthritis, chronic renal failure or bony abnormalities of the hand. We report a case of spontaneous, non-concurrent bilateral rupture of flexor profundus tendons in an otherwise healthy individual. Treatment was successful and consisted of a two-stage reconstruction of the ruptured tendon.

  5. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... their hands, either with soap and water or use an alcohol-based hand sanitizer. You and your ... wash their hands with soap and water or use an alcohol-based hand sanitizer every time, both ...

  6. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... should wash their hands, either with soap and water or use an alcohol-based hand sanitizer. You ... nurses – either wash their hands with soap and water or use an alcohol-based hand sanitizer every ...

  7. Temperature Induced Changes of Spontaneous Photon Emission from Human Hands

    Czech Academy of Sciences Publication Activity Database

    Cifra, Michal; Van Wijk, E.; Van Wijk, R.

    Cambridge : The Electromagnetics Academy, 2008, s. 907-911. ISBN 978-1-934142-06-6. ISSN 1559-9450. [Progress In Electromagnetics Research Symposium - PIERS 2008. Cambridge (GB), 02.07.2008-06.07.2008] Institutional research plan: CEZ:AV0Z20670512 Keywords : photon * temperature * skin Subject RIV: BO - Biophysics

  8. Health Impact Assessment for Second-Hand Smoke Exposure in Germany—Quantifying Estimates for Ischaemic Heart Diseases, COPD, and Stroke

    Directory of Open Access Journals (Sweden)

    Florian Fischer

    2016-02-01

    Full Text Available Evidence of the adverse health effects attributable to second-hand smoke (SHS exposure is available. This study aims to quantify the impact of SHS exposure on ischaemic heart diseases (IHD, chronic obstructive pulmonary diseases (COPD, and stroke in Germany. Therefore, this study estimated and forecasted the morbidity for the three outcomes in the German population. Furthermore, a health impact assessment was performed using DYNAMO-HIA, which is a generic software tool applying a Markov model. Overall 687,254 IHD cases, 231,973 COPD cases, and 288,015 stroke cases were estimated to be attributable to SHS exposure in Germany for 2014. Under the assumption that the population prevalence of these diseases and the prevalence of SHS exposure remain constant, the total number of cases will increase due to demographic aging. Assuming a total eradication of SHS exposure beginning in 2014 leads to an estimated reduction of 50% in cases, compared to the reference scenario in 2040 for all three diseases. The results highlight the relevance of SHS exposure because it affects several chronic disease conditions and has a major impact on the population’s health. Therefore, public health campaigns to protect non-smokers are urgently needed.

  9. A Study to Assess Knowledge and Attitude Regarding Hand Hygiene amongst Residents and Nursing Staff in a Tertiary Health Care Setting of Bhopal City

    OpenAIRE

    Maheshwari, Veena; kaore, Navin Chandra M; Ramnani, Vijay Kumar; Gupta, Sanjay Kumar; Borle, Amod; Kaushal, Rituja

    2014-01-01

    Background: Infection due to hospital-acquired microbes is an evolving problem worldwide, and horizontal transmission of bacterial organism continues to cause a high nosocomial infection rate in health care settings. Most nosocomial infections are thought to be transmitted by the hands of health care workers.The application of hand hygiene is effective in reducing infection rates.

  10. Hand eczema severity and quality of life

    DEFF Research Database (Denmark)

    Agner, Tove; Andersen, Klaus E; Brandao, Francisco M;

    2008-01-01

    Background and Objectives: Hand eczema is a chronic disease with negative impact on quality of life (QoL). In this study, QoL in hand eczema patients is assessed and related to age, sex, severity, and diagnostic subgroups. Methods: A total of 416 patients with hand eczema from 10 European patch...... test clinics participated in the study. Data on QoL were obtained from a self-administered questionnaire using the Dermatology Life Quality Index (DLQI). Severity was assessed by a scoring system (Hand Eczema Severity Index, HECSI) as well as frequency of eruptions and sick leave due to hand eczema...

  11. Spontaneous intracranial hypotension.

    LENUS (Irish Health Repository)

    Fullam, L

    2012-01-31

    INTRODUCTION: Spontaneous\\/primary intracranial hypotension is characterised by orthostatic headache and is associated with characteristic magnetic resonance imaging findings. CASE REPORT: We present a case report of a patient with typical symptoms and classical radiological images. DISCUSSION: Spontaneous intracranial hypotension is an under-recognised cause of headache and can be diagnosed by history of typical orthostatic headache and findings on MRI brain.

  12. Improvement of skills and knowledge by a hands-on cardiac CT course. Before and after evaluation with a validated questionnaire and self-assessment

    International Nuclear Information System (INIS)

    Purpose: cardiac computed tomography (CT) is becoming increasingly important in noninvasive imaging. To meet this demand, there are a growing number of short training courses for cardiac CT. Whether such courses improve the knowledge and skills of participants is not known. Materials and methods: the concept of a two-day cardiac CT course consisting of introductory lectures, live patient examinations, and hands-on exercises for interpreting cardiac CT scans on workstations was analyzed using participant evaluations (scales from 1 = excellent to 6 = very poor). Participants rated their increase in knowledge and completed a validated questionnaire with 20 questions. Results: a total of 102 participants attended the courses. There were significant differences in the number of correctly answered test questions between cardiac CT experts and participants at the beginning of the course (91.5 ± 6.3% vs. 62.4 ± 16.1% p < 0.001). The number of questions answered correctly by the participants increased significantly after completion of the course (mean increase of 4 correctly answered questions, 81.8 ± 11.4%. vs. 62.4 ± 16.1% p < 0.001). This objective increase in knowledge was in good agreement with participant self-assessments (76.4 ± 12.6% vs. 81.8 ± 11.4%). The quality of the course received good to very good scores, ranging from 1.8 ± 0.7 for speed of presentation to 1.4 ± 0.5 for lecturer competence. The score for overall course quality was 1.4 ± 0.6. Conclusion: A relatively short cardiac CT course can significantly improve the quantifiable knowledge of participants. The overall quality of the course was rated as very good. (orig.)

  13. Congenital Cleft Hand

    OpenAIRE

    Aritamur, Ayhan; Cakmak, Mehmet; Taser, Omer; Berk, Hasan

    2004-01-01

    Congenital cleft hand deformity, which is also known with such names as cleft hand, lobster claw hand and Ectrodactyiy, is characterized by the absence of one or two fingers in the mid portion of the hand. A case of bilateral cleft hand deformity four years old, which is considerabiy rare, was reconstructed surgically. The result obtained has been presented. Because no sufficient experience has accumulated due to the fact that it is observed considerably rare, the therapeutical principales re...

  14. Hand eczema - prognosis and consequences

    DEFF Research Database (Denmark)

    Petersen, A. H.; Johansen, J D; Hald, M

    2014-01-01

    patients with hand eczema, the occupational consequences and to identify risk factors associated with a poor prognosis. MATERIALS AND METHODS: In all, 536 patients with hand eczema participated and were examined by a dermatologist. The clinical severity was assessed at baseline and 7 years later using a...... eczema in other body locations during the follow-up period were risk factors of a poor prognosis. The same factors, as well as being a woman, were associated with occupational consequences and low health-related quality of life. Of those with persistent hand eczema only 40% had visited a dermatologist......BACKGROUND: Hand eczema is recognized as a long-lasting disease with personal and societal repercussions. Long-term studies are required to generate information on factors contributing to a poor outcome. OBJECTIVES: The aims of this 7-year follow-up study were to evaluate the clinical course of...

  15. Spontaneous Resolution of Massive Spontaneous Tubercular Pneumothorax

    OpenAIRE

    Surya Kant; Saheer, S.; Hassan, G; Jabeed Parengal

    2012-01-01

    A 29-year-old female presented with complaints of fever and productive cough of three weeks duration. Pulmonary tuberculosis was diagnosed bacteriologically and she was prescribed antituberculosis drugs. During follow-up she developed massive pneumothorax, for which patient refused surgical management and was managed conservatively. After six months there was complete spontaneous resolution of pneumothorax. The unusual presentation and unexpected outcome prompted us to report this case.

  16. A comparative assessment of hand preference in captive red howler monkeys, Alouatta seniculus and yellow-breasted capuchin monkeys, Sapajus xanthosternos.

    Directory of Open Access Journals (Sweden)

    Nasibah Sfar

    Full Text Available There are two major theories that attempt to explain hand preference in non-human primates-the 'task complexity' theory and the 'postural origins' theory. In the present study, we proposed a third hypothesis to explain the evolutionary origin of hand preference in non-human primates, stating that it could have evolved owing to structural and functional adaptations to feeding, which we refer to as the 'niche structure' hypothesis. We attempted to explore this hypothesis by comparing hand preference across species that differ in the feeding ecology and niche structure: red howler monkeys, Alouatta seniculus and yellow-breasted capuchin monkeys, Sapajus xanthosternos. The red howler monkeys used the mouth to obtain food more frequently than the yellow-breasted capuchin monkeys. The red howler monkeys almost never reached for food presented on the opposite side of a wire mesh or inside a portable container, whereas the yellow-breasted capuchin monkeys reached for food presented in all four spatial arrangements (scattered, on the opposite side of a wire mesh, inside a suspended container, and inside a portable container. In contrast to the red howler monkeys that almost never acquired bipedal and clinging posture, the yellow-breasted capuchin monkeys acquired all five body postures (sitting, bipedal, tripedal, clinging, and hanging. Although there was no difference between the proportion of the red howler monkeys and the yellow-breasted capuchin monkeys that preferentially used one hand, the yellow-breasted capuchin monkeys exhibited an overall weaker hand preference than the red howler monkeys. Differences in hand preference diminished with the increasing complexity of the reaching-for-food tasks, i.e., the relatively more complex tasks were perceived as equally complex by both the red howler monkeys and the yellow-breasted capuchin monkeys. These findings suggest that species-specific differences in feeding ecology and niche structure can influence

  17. A comparative assessment of hand preference in captive red howler monkeys, Alouatta seniculus and yellow-breasted capuchin monkeys, Sapajus xanthosternos.

    Science.gov (United States)

    Sfar, Nasibah; Mangalam, Madhur; Kaumanns, Werner; Singh, Mewa

    2014-01-01

    There are two major theories that attempt to explain hand preference in non-human primates-the 'task complexity' theory and the 'postural origins' theory. In the present study, we proposed a third hypothesis to explain the evolutionary origin of hand preference in non-human primates, stating that it could have evolved owing to structural and functional adaptations to feeding, which we refer to as the 'niche structure' hypothesis. We attempted to explore this hypothesis by comparing hand preference across species that differ in the feeding ecology and niche structure: red howler monkeys, Alouatta seniculus and yellow-breasted capuchin monkeys, Sapajus xanthosternos. The red howler monkeys used the mouth to obtain food more frequently than the yellow-breasted capuchin monkeys. The red howler monkeys almost never reached for food presented on the opposite side of a wire mesh or inside a portable container, whereas the yellow-breasted capuchin monkeys reached for food presented in all four spatial arrangements (scattered, on the opposite side of a wire mesh, inside a suspended container, and inside a portable container). In contrast to the red howler monkeys that almost never acquired bipedal and clinging posture, the yellow-breasted capuchin monkeys acquired all five body postures (sitting, bipedal, tripedal, clinging, and hanging). Although there was no difference between the proportion of the red howler monkeys and the yellow-breasted capuchin monkeys that preferentially used one hand, the yellow-breasted capuchin monkeys exhibited an overall weaker hand preference than the red howler monkeys. Differences in hand preference diminished with the increasing complexity of the reaching-for-food tasks, i.e., the relatively more complex tasks were perceived as equally complex by both the red howler monkeys and the yellow-breasted capuchin monkeys. These findings suggest that species-specific differences in feeding ecology and niche structure can influence the perception of

  18. Spontaneous pneumomediastinum in adolescents

    Institute of Scientific and Technical Information of China (English)

    SHEN Gang; CHAI Ying

    2007-01-01

    @@ Spontaneous pneumomediastinum (SPM),reported firstly by Hamman in 1939,is an uncommon,and usually benign,and self-limiting clinical disorder found in young people often without apparent precipitating factors or diseases.

  19. What Is the Role of Manual Preference in Hand-Digit Mapping During Finger Counting? A Study in a Large Sample of Right- and Left-Handers.

    Science.gov (United States)

    Zago, Laure; Badets, Arnaud

    2016-01-01

    The goal of the present study was to test whether there is a relationship between manual preference and hand-digit mapping in 369 French adults with similar numbers of right- and left-handers. Manual laterality was evaluated with the finger tapping test to evaluate hand motor asymmetry, and the Edinburgh handedness inventory was used to assess manual preference strength (MPS) and direction. Participants were asked to spontaneously "count on their fingers from 1 to 10" without indications concerning the hand(s) to be used. The results indicated that both MPS and hand motor asymmetry affect the hand-starting preference for counting. Left-handers with a strong left-hand preference (sLH) or left-hand motor asymmetry largely started to count with their left hand (left-starter), while right-handers with a strong right-hand preference (sRH) or right-hand motor asymmetry largely started to count with their right hand (right-starter). Notably, individuals with weak MPS did not show a hand-starting preference. These findings demonstrated that manual laterality contributes to finger counting directionality. Lastly, the results showed a higher proportion of sLH left-starter individuals compared with sRH right-starters, indicating an asymmetric bias of MPS on hand-starting preference. We hypothesize that the higher proportion of sLH left-starters could be explained by the congruence between left-to-right hand-digit mapping and left-to-right mental number line representation that has been largely reported in the literature. Taken together, these results indicate that finger-counting habits integrate biological and cultural information. PMID:26562861

  20. Spontaneous Rupture of Pyometra

    OpenAIRE

    Fatemeh Mallah; Tahere Eftekhar; Mohammad Naghavi-Behzad

    2013-01-01

    Spontaneous perforation is a very rare complication of pyometra. The clinical findings of perforated pyometra are similar to perforation of the gastrointestinal tract and other causes of acute abdomen. In most cases, a correct and definite diagnosis can be made only by laparotomy. We report two cases of diffuse peritonitis caused by spontaneous perforated pyometra. The first case is a 78-year-old woman with abdominal pain for which laparotomy was performed because of suspected incarcerated he...

  1. Hand Surgery: Anesthesia

    Science.gov (United States)

    ... Therapist? Media Find a Hand Surgeon Hand Surgery Anesthesia Email to a friend * required fields From * To * ... in to name and customize your collection. DESCRIPTION Anesthesia is a way to control pain during a ...

  2. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... to wash their hands. Thank you for your attention and I wish you a speedy and uneventful ... to wash their hands. Thank you for your attention and I wish you a speedy and uneventful ...

  3. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... family can do to help prevent these infections – wash your hands and make sure that everyone who ... your care and make sure everyone around you washes their hands. Hi, I'm Gayle. Now that ...

  4. Wash Your Hands

    Science.gov (United States)

    ... What's this? Submit Button Past Emails CDC Features Wash Your Hands Language: English Español (Spanish) Recommend on ... and throughout an entire community . When should you wash your hands? Feces (poop) from people or animals ...

  5. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... it again in front of me. Sure, no problem. Thanks doctor. I know how important hand hygiene ... it again in front of me. Sure, no problem. Thanks doctor. I know how important hand hygiene ...

  6. Hand Hygiene Saves Lives

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    Full Text Available ... to the hospital to get well, but you should know that each year in the United States ... practice proper hand hygiene. This means that people should wash their hands, either with soap and water ...

  7. Hand and Wrist Tumors

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  8. About Hand Surgery

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  9. Hands in Systemic Disease

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  10. Osteoarthritis of the Hand

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  11. Stiffness in the Hand

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  12. Find a Hand Surgeon

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  13. Hand Hygiene Saves Lives

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    Full Text Available ... hands a little while ago, but would you mind washing them again? Sure, Mom. It's important to ... to even ask you this, but would you mind cleansing your hands before you begin? Oh, I ...

  14. Hand Hygiene Saves Lives

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    Full Text Available ... Podcast Series For Kids Radio-Ready PSAs Podcasting Resources Podcasting Best Practices Audio Script Writing Guide Children's ... should wash their hands, either with soap and water or use an alcohol-based hand sanitizer. You ...

  15. Boekbespreking van DJ Hand

    OpenAIRE

    Buuren, S. van

    2006-01-01

    DJ Hand (2004). Measurement Theory and Practice: The world through quantification. Hoofdstuk 1 behandelt de vraag waarom we meten, en hoofdstuk 2 neemt de vraag 'Wat is meten?' als vertrekpunt. Hand introduceert een onderscheid tussen 'representational measurement' en 'pragmatic measurement'.

  16. Hand hygiene strategies

    OpenAIRE

    Yazaji, Eskandar Alex

    2011-01-01

    Hand hygiene is one of the major players in preventing healthcare associated infections. However, healthcare workers compliance with hand hygiene continues to be a challenge. This article will address strategies to help improving hand hygiene compliance. Keywords: hand hygiene; healthcare associated infections; multidisciplinary program; system change; accountability; education; feedback(Published: 18 July 2011)Citation: Journal of Community Hospital Internal Medicine Perspectives 2011, 1: 72...

  17. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... most important thing you can do to help prevent infections. Everyone around you must practice proper hand hygiene. This means that people should wash their hands, either with soap and water or use an alcohol-based hand sanitizer. You and your loved ones ...

  18. Spontaneous pneumomediastinum in adult dermatomyositis.

    OpenAIRE

    Bradley, J D

    1986-01-01

    Spontaneous pneumomediastinum has not been reported in adult polymyositis or dermatomyositis, either in conjunction with spontaneous pneumothorax or in isolation. Spontaneous pneumothorax has been rarely reported as a complication of rheumatoid arthritis, systemic lupus erythematosus, scleroderma, and childhood dermatomyositis. It is associated with active, progressive pulmonary involvement and a poor prognosis. We describe an adult with dermatomyositis and spontaneous pneumomediastinum with ...

  19. An in-use microbiological comparison of two surgical hand disinfection techniques in cardiothoracic surgery: hand rubbing versus hand scrubbing.

    Science.gov (United States)

    Carro, C; Camilleri, L; Traore, O; Badrikian, L; Legault, B; Azarnoush, K; Dualé, C; De Riberolles, C

    2007-09-01

    Surgical site infection after heart surgery increases morbidity and mortality. The method of presurgical hand disinfection could influence the infection risk. From February to April 2003, we compared the microbiological efficacy of hand-rubbing (R) and hand-scrubbing (S) procedures. The surgical team alternately used hand-scrubbing or hand-rubbing techniques every two weeks. Fingertip impressions were taken before and immediately after hand disinfection, every 2h and at the end of the operation. Acceptability of hand rubbing was assessed by a questionnaire. Mean durations of surgical procedures were 259+/-68 and 244+/-69min for groups S and R respectively (P=0.43). Bacterial counts immediately after hand disinfection were comparable with the two techniques, but significantly lower in group R at the end of surgery. No differences were observed between the percentages of negative samples taken after 2h, 4h and at the end of surgery between the two groups. Bacterial skin flora reduction immediately after hand disinfection, after 2h and 4h of operating time and at the end of surgery was better in group R, but the difference was not statistically significant. Before surgery, the hand-rubbing method with alcohol solution preceded by hand washing with mild neutral soap is as effective as hand scrubbing to reduce bacterial counts on hands. It decreased the bacterial counts both immediately after hand disinfection and at the end of long cardiothoracic surgical procedures. The acceptability of hand rubbing was excellent and it can be considered to be a valid alternative to the conventional hand-scrubbing protocol. PMID:17719131

  20. Comparison of carcinogen, carbon monoxide, and ultrafine particle emissions from narghile waterpipe and cigarette smoking: Sidestream smoke measurements and assessment of second-hand smoke emission factors

    OpenAIRE

    Daher, Nancy; Saleh, Rawad; Jaroudi, Ezzat; Sheheitli, Hiba; Badr, Thérèse; Sepetdjian, Elizabeth; Al Rashidi, Mariam; Saliba, Najat; Shihadeh, Alan

    2010-01-01

    The lack of scientific evidence on the constituents, properties, and health effects of second-hand waterpipe smoke has fueled controversy over whether public smoking bans should include the waterpipe. The purpose of this study was to investigate and compare emissions of ultrafine particles (UFP,

  1. The Invisible Hand and the Grabbing Hand.

    OpenAIRE

    Timothy Frye; Andrei Shleifer

    1997-01-01

    Evidence from a survey of 105 shop-owners in Moscow and Warsaw shows that the reliance on private protection, as well as the burden of regulation and corruption, are much greater in Moscow. The evidence suggests that the `invisible hand' model of government better fits the Warsaw local government, and the`grabbing hand' model is more appropriate for Moscow. The evidence implies that the singular focus on the speed of economic reforms to understand the success of transition is misplaced, and t...

  2. Case of spontaneous ventriculocisternostomy

    Energy Technology Data Exchange (ETDEWEB)

    Yamane, Kanji; Yoshimoto, Hisanori; Harada, Kiyoshi; Uozumi, Tohru (Hiroshima Univ. (Japan). School of Medicine); Kuwabara, Satoshi

    1983-05-01

    The authors experienced a case of spontaneous ventriculocisternostomy diagnosed by CT scan with metrizamide and Conray. Patient was 23-year-old male who had been in good health until one month before admission, when he began to have headache and tinnitus. He noticed bilateral visual acuity was decreased about one week before admission and vomiting appeared two days before admission. He was admitted to our hospital because of bilateral papilledema and remarkable hydrocephalus diagnosed by CT scan. On admission, no abnormal neurological signs except for bilateral papilledema were noted. Immediately, right ventricular drainage was performed. Pressure of the ventricle was over 300mmH/sub 2/O and CSF was clear. PVG and PEG disclosed an another cavity behind the third ventricle, which was communicated with the third ventricle, and occlusion of aqueduct of Sylvius. Metrizamide CT scan and Conray CT scan showed a communication between this cavity and quadrigeminal and supracerebellar cisterns. On these neuroradiological findings, the diagnosis of obstructive hydrocephalus due to benign aqueduct stenosis accompanied with spontaneous ventriculocisternostomy was obtained. Spontaneous ventriculocisternostomy was noticed to produce arrest of hydrocephalus, but with our case, spontaneous regression of such symptoms did not appeared. By surgical ventriculocisternostomy (method by Torkildsen, Dandy, or Scarff), arrest of hydrocephalus was seen in about 50 to 70 per cent, which was the same results as those of spontaneous ventriculocisternostomy. It is concluded that VP shunt or VA shunt is thought to be better treatment of obstructive hydrocephalus than the various kinds of surgical ventriculocisternostomy.

  3. Spontaneous development of bilateral subdural hematomas in an infant with benign infantile hydrocephalus: color Doppler assessment of vessels traversing extra-axial spaces

    International Nuclear Information System (INIS)

    We present an infant with macrocrania, who initially demonstrated prominent extra-axial fluid collections on sonography of the brain, compatible with benign infantile hydrocephalus (BIH). Because of increasing macrocrania, a follow-up sonogram of the brain was performed; it revealed progressive enlargement of the extra-axial spaces, which now had echogenic debris. Color Doppler US showed bridging veins traversing these extra-axial spaces, so it was initially thought that these spaces were subarachnoid in nature (positive cortical vein sign). However, an arachnoid membrane was identified superior to the cortex, and there was compression of true cortical vessels beneath this dural membrane. An MRI of the brain showed the extra-axial spaces to represent bilateral subdural hematomas. The pathogenesis of spontaneous development of the subdural hematomas, in the setting of BIH, is discussed. We also emphasize that visualizing traversing bridging veins through extra-axial spaces does not necessarily imply that these spaces are subarachnoid in origin. (orig.)

  4. Spontaneous Perforation of Pyometra

    Directory of Open Access Journals (Sweden)

    Begüm Yildizhan

    2006-01-01

    Full Text Available Pyometra is the accumulation of purulent material in the uterine cavity. Its reported incidence is 0.01–0.5% in gynecologic patients; however, as far as elderly patients are concerned, its incidence is 13.6% [3]. The most common cause of pyometra is malignant diseases of genital tract and the consequences of their treatment (radiotherapy. Other causes are benign tumors like leiomyoma, endometrial polyps, senile cervicitis, cervical occlusion after surgery, puerperal infections, and congenital cervical anomalies. Spontaneous rupture of the uterus is an extremely rare complication of pyometra. To our knowledge, only 21 cases of spontaneous perforation of pyometra have been reported in English literature since 1980. This paper reports an additional case of spontaneous uterine rupture.

  5. Hip- and knee-strength assessments using a hand-held dynamometer with external belt-fixation are inter-tester reliable

    DEFF Research Database (Denmark)

    Thorborg, Kristian; Bandholm, Thomas; Hölmich, Per

    2013-01-01

    PURPOSE: In football, ice-hockey, and track and field, injuries have been predicted, and hip- and knee-strength deficits quantified using hand-held dynamometry (HHD). However, systematic bias exists when testers of different sex and strength perform the measurements. Belt-fixation of the dynamome......PURPOSE: In football, ice-hockey, and track and field, injuries have been predicted, and hip- and knee-strength deficits quantified using hand-held dynamometry (HHD). However, systematic bias exists when testers of different sex and strength perform the measurements. Belt-fixation of the...... women), 30 (8.6) (mean (SD)) years of age, were included. Two physiotherapy students (1 female and 1 male) performed all the measurements after careful instruction and procedure training. Isometric hip abduction, adduction, flexion, extension, and knee-flexion strength were tested. The tester-order and...

  6. An Evaluation of the Importance of Hand Exposures Using Rubber Latex Gloves as Sampling Dosimeters for Assessing Pesticide Exposures in Strawberry Harvesters

    OpenAIRE

    Sankaran, Gayatri

    2012-01-01

    The widespread use of pesticides in California is commonly viewed as a significant public health concern. Exposure is particularly a concern for workers who use pesticides in agriculture or who are exposed to them during the harvesting of fruits and vegetables. Previous research has shown that direct dermal and clothing contact with foliar residues is primarily responsible for pesticide exposures among harvesters. These exposures occur primarily due to hand contact with treated leaf surfac...

  7. Spontaneous regression of osteochondromas

    Energy Technology Data Exchange (ETDEWEB)

    Hoshi, Manabu; Takami, Masatsugu; Hashimoto, Ryouji; Okamoto, Takashi; Yanagida, Ikuhisa; Matsumura, Akira; Noguchi, Kazuko [Yodogawa Christian Hospital, Department of Orthopaedic Surgery, Osaka (Japan)

    2007-06-15

    Spontaneous regression of an osteochondroma is an infrequent event. In this report, two cases with spontaneous regression of osteochondromas are presented. The first case was a solitary osteochondroma of the pedunculated type involving the right proximal humerus in a 7-year-old boy. This lesion resolved over 15 months of observation. The second case was a 3-year-old girl with multiple osteochondromatosis, in whom sessile osteochondromas of the right tibia and left fibula regressed over 33 months.The mechanism of this phenomenon is discussed with a review of previous reports. Regarding treatment, careful observation may be acceptable for typical osteochondromas, especially in young children. (orig.)

  8. [Spontaneous mediastinal emphysema].

    Science.gov (United States)

    Svedbrand, Charlotte; Lange, Peter; Nielsen, Klaus

    2016-01-01

    Spontaneous mediastinal emphysema, also known as spontaneous pneumomediastinum, is defined as radiologically detected free air in the mediastinum, without preceding trauma. It is a rare condition, mainly affecting young adults. It can be caused by coughing, strenuous sports or cocaine inhalation, however, 40% are idiopatic. Common symptoms are chest pain and dyspnoea. 75-90% can be diagnosed with a chest X-ray, and 100% with a computed tomography. Treatment is symptomatic and complications are rare, however, pneumothorax and pneumorrachis have been reported. PMID:26750190

  9. Controlling spontaneous emission

    DEFF Research Database (Denmark)

    Lodahl, Peter

    Control over spontaneous emission of light is of great importance in quantum optics. It is essential for diverse applications such as miniature lasers, light-emitting diodes, and single-photon sources for quantum information. We present experimental studies on spontaneous emission of CdSe quantum...... dots (QDs) embedded in 3D photonic crystals consisting of air spheres in titanium dioxide. Performing time-resolved experiments, we show that the photonic crystals control the emission decay rate of excitons confined in the QDs1,2. By varying the lattice parameter of the photonic crystals, we...

  10. Spontaneous tension haemopneumothorax

    Directory of Open Access Journals (Sweden)

    Itam Sarah

    2008-10-01

    Full Text Available Abstract We present a patient with sudden onset progressive shortness of breath and no history of trauma, who rapidly became haemodynamically compromised with a pneumothorax and pleural effusion seen on chest radiograph. He was treated for spontaneous tension pneumothorax but this was soon revealed to be a tension haemopneumothorax. He underwent urgent thoracotomy after persistent bleeding to explore an apical vascular abnormality seen on CT scanning. To our knowledge this is the first such case reported. Aetiology and current approach to spontaneous haemothorax are discussed briefly.

  11. Hand deburring guide

    Energy Technology Data Exchange (ETDEWEB)

    Gillespie, L.K.

    1979-07-01

    Appropriate hand deburring techniques have always been difficult to define because of the infinite variety of part shapes, sizes, materials, and burr conditions. This guide, however, has been prepared to assist those responsible for hand deburring. The purpose of the guide is to define Bendix Kansas City burr specifications and inspection practices; to define the results of practical tests on hand deburring; to define some typical in-house practices; and to define the in-house tools available for this work.

  12. Hand eczema classification

    DEFF Research Database (Denmark)

    Diepgen, T L; Andersen, Klaus Ejner; Brandao, F M;

    2008-01-01

    the disease is rarely evidence based, and a classification system for different subdiagnoses of hand eczema is not agreed upon. Randomized controlled trials investigating the treatment of hand eczema are called for. For this, as well as for clinical purposes, a generally accepted classification system...... classification system for hand eczema is proposed. Conclusions It is suggested that this classification be used in clinical work and in clinical trials....

  13. Hand Hygiene: An Update.

    Science.gov (United States)

    Bolon, Maureen K

    2016-09-01

    The medical field has long recognized the importance of hand hygiene in preventing health care-associated infections, yet studies indicate that this important task is performed only 40% of the time. Health care workers cite several barriers to optimal performance of hand hygiene, but the time required to perform this task is foremost among them. Introduction of alcohol-based hand rubs, bundled interventions, and incorporation of technologies designed to monitor and promote hand hygiene all represent promising advances in this field. PMID:27515139

  14. Left-Handed Preschool Children with Orthopedic Disabilities.

    Science.gov (United States)

    Banham, Katharine M.

    1983-01-01

    The mental development of 332 preschool-age children with orthopedic disabilities was assessed at a children's hospital over a 10-year period, and comparisons were made for right-handed and left-handed. The left-handed children were slower than right-handed children in learning speech and language skills (Author/SEW)

  15. 脑卒中后手功能康复应评价和治疗并重%Rehabilitation of hand function after stroke requires attention to both assessment and therapy

    Institute of Scientific and Technical Information of China (English)

    贾杰

    2014-01-01

    Hand function disorder is an important factor influencing the quality of life of patients with stroke. Standardized assessment of hand function has a great signiifcance for rehabilitation. Based on the scales of hand function disorder after stroke, the article discusses how to develop the post-stroke rehabilitation therapies of the hand function, such as physical therapy, occupational therapy, rehabilitation instruments and other assistive devices.%脑卒中后遗留的手功能障碍是影响患者生活质量的重要因素,规范的手功能评估对于康复治疗意义重大。本文从脑卒中后手功能障碍量表的评估出发,讨论如何开展脑卒中后物理、作业、康复器械、辅助用具等手功能的康复治疗。

  16. Maternal smoking predicts the risk of spontaneous abortion

    DEFF Research Database (Denmark)

    Nielsen, Ann; Hannibal, Charlotte Gerd; Lindekilde, Bodil Eriksen;

    2006-01-01

    ) or who gave birth (n=1,578) during follow-up were selected. Associations between self-reported smoking at enrollment and subsequent spontaneous abortion were analyzed by means of multiple logistic regression. RESULTS: The risk of spontaneous abortion in relation to pre-pregnancy smoking showed a......BACKGROUND: Few studies have examined smoking prior to pregnancy and the occurrence of spontaneous abortion, as most studies have addressed the risk of spontaneous abortion in relation to smoking during pregnancy. However, results are not entirely consistent. The aim of the present study was to...... assess the risk of spontaneous abortion considering smoking prior to pregnancy. METHODS: We performed a nested case-control study using prospective data from a population-based cohort comprising 11,088 women aged 20-29 years. From this cohort, women who experienced either a spontaneous abortion (n=343...

  17. Spontaneous otogenic pneumocephalus.

    Science.gov (United States)

    Mohammed, El Romyssa; Profant, Milan

    2011-06-01

    The diagnosis and management of spontaneous otogenic pneumocephalus with literature review is described. A young sportsman experienced headache and fluctuating mass in his occiput during increased physical activity. A large extradural intracranial pneumocephalus with corresponding emphysema was imaged on a CT scan. Transmastoid identification and plugging of temporal bone defect solved the problem with complete pneumocephalus and emphysema resorption. PMID:21254960

  18. Mind the hand

    DEFF Research Database (Denmark)

    Davidsen, Jacob; Christiansen, Ellen Tove

    2014-01-01

    Apart from touching the screen, what is the role of the hands for children collaborating around touchscreens? Based on embodied and multimodal interaction analysis of 8- and 9-year old pairs collaborating around touchscreens, we conclude that children use their hands to constrain and control access...

  19. Psychometric Properties and Administration of the Wrist/Hand Subscales of the Fugl-Meyer Assessment in Minimally-Impaired Upper Extremity Hemiparesis in Stroke

    OpenAIRE

    Page, Stephen J.; Levine, Peter; Hade, Erinn

    2012-01-01

    There is a need for time-efficient, valid measures of distal paretic upper extremity (UE) movement. The purposes of this study were to: (a) determine the psychometric properties of the wrist stability and mobility and hand items of the upper extremity scale of the Fugl-Meyer (w/h UE FM) as a “stand alone” measure of distal UE movement; and (b) provide detailed instructions on w/h UE FM administration and scoring. The UE FM and Action Research Arm Test (ARAT) were administered on 2 separate oc...

  20. Ultrasound Assessment of Synovial Thickness of Some of the Metacarpophalangeal Joints of Hand in Rheumatoid Arthritis Patients and the Normal Population

    Science.gov (United States)

    Hussain Manik, Zuhudha; George, John; Sockalingam, Sargunan

    2016-01-01

    Objective. To compare ultrasound synovial thickness of the 2nd, 3rd and 4th metacarpophalangeal joints (MCPJ) in a group of patients with proven rheumatoid arthritis (RA) and a control group of normal individuals. Materials and Methods. This is a cross-sectional study comprising 30 rheumatoid arthritis patients and 30 healthy individuals. Ultrasound scans were performed at the dorsal side of 2nd, 3rd, and 4th MCPJ of both hands in RA patients and the healthy individuals. Synovial thickness was measured according to quantitative method. The synovial thickness of RA patients and healthy individuals was compared and statistical cut-off was identified. Results. Maximum synovial thickness was most often detected at the radial side of the 2nd MCPJ and 3rd MCPJ and ulnar side of the 4th MCPJ of both hands which is significantly higher (p ulnar side of the 4th MCPJ. Conclusion. Patients with early RA appear to exhibit a characteristic pattern of synovitis which shows radial side predominance in the 2nd and 3rd MCPJ and ulnar side in the 4th MCPJ.

  1. Spontaneous pneumothorax complicating Legionnaires' disease

    OpenAIRE

    Bali, A; Pierry, A. A.; Bernstein, A.

    1981-01-01

    Spontaneous pneumothorax is a known but rare complication of pneumonia in adults. A case is described of Legionnaires' disease complicated by spontaneous hydropneumothorax. So far as is known such an association has not been reported previously.

  2. Surgical management of spontaneous hypertensive brainstem hemorrhage

    Directory of Open Access Journals (Sweden)

    Bal Krishna Shrestha

    2015-09-01

    Full Text Available Spontaneous hypertensive brainstem hemorrhage is the spontaneous brainstem hemorrhage associated with long term hypertension but not having definite focal or objective lesion. It is a catastrophic event which has a poor prognosis and usually managed conservatively. It is not uncommon, especially in eastern Asian populations, accounting approximately for 10% of the intracerebral hemorrhage. Before the advent of computed tomography, the diagnosis of brainstem hemorrhage was usually based on the clinical picture or by autopsy and believed to be untreatable via surgery. The introduction of computed tomography permitted to categorize the subtypes of brainstem hemorrhage with more predicted outcome. Continuous ongoing developments in the stereotactic surgery and microsurgery have added more specific surgical management in these patients. However, whether to manage conservatively or promptly with surgical evacuation of hematoma is still a controversy. Studies have shown that an accurate prognostic assessment based on clinical and radiological features on admission is critical for establishing a reasonable therapeutic approach. Some authors have advocate conservative management, whereas others have suggested the efficacy of surgical treatment in brainstem hemorrhage. With the widening knowledge in microsurgical techniques as well as neuroimaging technology, there seems to have more optimistic hope of surgical management of spontaneous hypertensive brainstem hemorrhage for better prognosis. Here we present five cases of severe spontaneous hypertensive brainstem hemorrhage patients who had undergone surgery; and explore the possibilities of surgical management in patients with the spontaneous hypertensive brainstem hemorrhage.

  3. Staphylococcus aureus and hand eczema severity

    DEFF Research Database (Denmark)

    Haslund, P; Bangsgaard, N; Jarløv, J O;

    2009-01-01

    BACKGROUND: The role of bacterial infections in hand eczema (HE) remains to be assessed. OBJECTIVES: To determine the prevalence of Staphylococcus aureus in patients with HE compared with controls, and to relate presence of S. aureus, subtypes and toxin production to severity of HE. METHODS......: Bacterial swabs were taken at three different visits from the hand and nose in 50 patients with HE and 50 controls. Staphylococcus aureus was subtyped by spa typing and assigned to clonal complexes (CCs), and isolates were tested for exotoxin-producing S. aureus strains. The Hand Eczema Severity Index...... was used for severity assessment. RESULTS: Staphylococcus aureus was found on the hands in 24 patients with HE and four controls (P aureus was found to be related to increased severity of the eczema (P aureus types on the hands...

  4. Hand-arm vibration syndrome.

    Science.gov (United States)

    Pelmear, P L; Taylor, W

    1994-02-01

    The hand-arm vibration syndrome affects workers who perform tasks that generate vibration. Raynaud's phenomenon and sensory impairment of the fingers are the predominant effects. A history of hand-arm vibration (HAV) exposure in a patient with these symptoms should alert the physician to the diagnosis. Referral to a special clinic or hospital department for multiple clinical tests is required to confirm the diagnosis and, using the Stockholm classification, to grade the severity in each hand. The assessment permits the patient to be monitored either for progression of or recovery from the syndrome. Avoidance of further vibration exposure is recommended, together with the prescription of a slow-release calcium channel blocker to improve peripheral circulation. Hand-arm vibration syndrome should be distinguished from carpal tunnel syndrome (CTS), which may have similar symptomatology but requires different treatments. Surgery is contraindicated in the former and should be the last resort for carpal tunnel syndrome in a worker requiring good grip-strength in future employment. PMID:8185734

  5. Complete nonsurgical resolution of a spontaneous spinal epidural hematoma.

    Science.gov (United States)

    Silber, S H

    1996-07-01

    Spontaneous spinal epidural hematomas (SSEH) are heralded by spinal pain and progressive cord compression syndromes which may lead to permanent neurological disability or death if emergent neurosurgical intervention is delayed. It therefore must be considered early in the differential diagnosis of acute spinal cord compression syndrome. A case of spontaneous spinal epidural hematoma presenting as an acute myelopathy in a clarinet player who chronically used a nonsteroidal anti-inflammatory medication is presented. The case was remarkable for the rare complete spontaneous resolution of neurological function. Approximately 250 cases of SSEH have been reported in the medical literature, although only a handful of these patients have recovered spontaneously. This is the sixth report of such an event. The etiologies, contributing factors, disease progression, and treatment recommendations are discussed. PMID:8768163

  6. (In)Visible Hand(s)

    OpenAIRE

    Predrag Zima

    2007-01-01

    In this paper, the author discusses the regulatory role of the state and legal norms, in market economy, especially in so-called transition countries. Legal policy, and other questions of the state and free market economy are here closely connected, because the state must ensure with legal norms that economic processes are not interrupted: only the state can establish the legal basis for a market economy. The free market’s invisible hand is acting in questions such as: what is to be produced,...

  7. Instant monitoring on hand

    International Nuclear Information System (INIS)

    Science Applications International Corporation, SAIC (of California) has evolved a high performance monitor for worker's extremities - the PDE-1TM. The monitor provides real-time information on exposure to hands, feet or head for personnel working in radiation fields with high gradients. An example is hand-hole work in nuclear power plants, where workers' hands may receive much higher doses than the average whole-body dose. The PDE-1TM uses the world's smallest production Geiger-Mueller tubes in a monitor small enough to fit under a glove, to give workers an audible alarm as soon as their dose limit is reached. (author)

  8. Temporary ectopic hand implantation

    Directory of Open Access Journals (Sweden)

    Xu Zhang

    2015-03-01

    Full Text Available Severe crushing injuries to the distal forearm can preclude immediate hand replantation, with temporary ectopic implantation as a practicable option under special circumstances. This report describes a case of temporary ectopic hand implantation for a crush injury extending from the wrist to the middle third of the forearm, using the left foot as the recipient site. The hand was replanted onto the left forearm 3 months after the ectopic implantation, with functional gains seen by 18 months. Satisfactory ambulation was retained, with no reported foot pain. Temporary ectopic implantation is a pragmatic alternative under select circumstances.

  9. The Social Explanatory Styles Questionnaire: assessing moderators of basic social-cognitive phenomena including spontaneous trait inference, the fundamental attribution error, and moral blame.

    Science.gov (United States)

    Gill, Michael J; Andreychik, Michael R

    2014-01-01

    Why is he poor? Why is she failing academically? Why is he so generous? Why is she so conscientious? Answers to such everyday questions--social explanations--have powerful effects on relationships at the interpersonal and societal levels. How do people select an explanation in particular cases? We suggest that, often, explanations are selected based on the individual's pre-existing general theories of social causality. More specifically, we suggest that over time individuals develop general beliefs regarding the causes of social events. We refer to these beliefs as social explanatory styles. Our goal in the present article is to offer and validate a measure of individual differences in social explanatory styles. Accordingly, we offer the Social Explanatory Styles Questionnaire (SESQ), which measures three independent dimensions of social explanatory style: Dispositionism, historicism, and controllability. Studies 1-3 examine basic psychometric properties of the SESQ and provide positive evidence regarding internal consistency, factor structure, and both convergent and divergent validity. Studies 4-6 examine predictive validity for each subscale: Does each explanatory dimension moderate an important phenomenon of social cognition? Results suggest that they do. In Study 4, we show that SESQ dispositionism moderates the tendency to make spontaneous trait inferences. In Study 5, we show that SESQ historicism moderates the tendency to commit the Fundamental Attribution Error. Finally, in Study 6 we show that SESQ controllability predicts polarization of moral blame judgments: Heightened blaming toward controllable stigmas (assimilation), and attenuated blaming toward uncontrollable stigmas (contrast). Decades of research suggest that explanatory style regarding the self is a powerful predictor of self-functioning. We think it is likely that social explanatory styles--perhaps comprising interactive combinations of the basic dimensions tapped by the SESQ--will be

  10. The Social Explanatory Styles Questionnaire: assessing moderators of basic social-cognitive phenomena including spontaneous trait inference, the fundamental attribution error, and moral blame.

    Directory of Open Access Journals (Sweden)

    Michael J Gill

    Full Text Available Why is he poor? Why is she failing academically? Why is he so generous? Why is she so conscientious? Answers to such everyday questions--social explanations--have powerful effects on relationships at the interpersonal and societal levels. How do people select an explanation in particular cases? We suggest that, often, explanations are selected based on the individual's pre-existing general theories of social causality. More specifically, we suggest that over time individuals develop general beliefs regarding the causes of social events. We refer to these beliefs as social explanatory styles. Our goal in the present article is to offer and validate a measure of individual differences in social explanatory styles. Accordingly, we offer the Social Explanatory Styles Questionnaire (SESQ, which measures three independent dimensions of social explanatory style: Dispositionism, historicism, and controllability. Studies 1-3 examine basic psychometric properties of the SESQ and provide positive evidence regarding internal consistency, factor structure, and both convergent and divergent validity. Studies 4-6 examine predictive validity for each subscale: Does each explanatory dimension moderate an important phenomenon of social cognition? Results suggest that they do. In Study 4, we show that SESQ dispositionism moderates the tendency to make spontaneous trait inferences. In Study 5, we show that SESQ historicism moderates the tendency to commit the Fundamental Attribution Error. Finally, in Study 6 we show that SESQ controllability predicts polarization of moral blame judgments: Heightened blaming toward controllable stigmas (assimilation, and attenuated blaming toward uncontrollable stigmas (contrast. Decades of research suggest that explanatory style regarding the self is a powerful predictor of self-functioning. We think it is likely that social explanatory styles--perhaps comprising interactive combinations of the basic dimensions tapped by the SESQ

  11. Spontaneous Quantum Hall Liquids

    Science.gov (United States)

    Zhang, Fan

    2012-02-01

    Driven by electron-electron interactions, bilayer graphene and its thicker cousins, chirally (ABC) stacked multilayers, exhibit a variety of distinct broken symmetry states in which each spin-valley flavor spontaneously transfers charge between layers, because of their flat touching bands and large pseudospin chiralities. These gapped states are accompanied by large momentum space Berry curvatures and different types of topological orders. These competing ground states are distinguished by their flavor Hall conductivities, orbital magnetizations, edge state properties, and response to external fields. These spontaneous quantum Hall (SQH) states at zero field smoothly evolve into quantum Hall ferromagnet states at finite field. Various phase transitions occur by tuning carrier densities, temperature, and external fields. Recently, SQH states have started to be observed and explored in transport and Hall experiments on suspended devices with dual gates.

  12. Spontaneous Perforation of Pyometra.

    Science.gov (United States)

    Sharma, Nalini; Singh, Ahanthem Santa; Bhaphiralyne, Wankhar

    2016-04-01

    Pyometra is collection of purulent material which occurs when there is interference with its normal drainage. It is an uncommon condition with incidence of 0.1 to 0.5% of all gynecological patients. Spontaneous rupture of uterus is an extremely rare complication of pyometra. A 65-year-old lady presented with pain abdomen and purulent vaginal discharge. Preoperative diagnosis of pyometra was made by magnetic resonance imaging (MRI). Laparotomy followed by peritoneal lavage and repair of perforation was performed. Although spontaneously perforated pyometra is rare, the condition must be borne in mind with regard to elderly women with acute abdominal pain. Preoperative diagnosis of perforated pyometra is absolutely essential. Computed tomography (CT) and MRI are diagnostic tools. In selected cases conservative approach at surgery can be opted. PMID:27152313

  13. Spontaneous Rupture of Pyometra

    Directory of Open Access Journals (Sweden)

    Fatemeh Mallah

    2013-01-01

    Full Text Available Spontaneous perforation is a very rare complication of pyometra. The clinical findings of perforated pyometra are similar to perforation of the gastrointestinal tract and other causes of acute abdomen. In most cases, a correct and definite diagnosis can be made only by laparotomy. We report two cases of diffuse peritonitis caused by spontaneous perforated pyometra. The first case is a 78-year-old woman with abdominal pain for which laparotomy was performed because of suspected incarcerated hernia. The second case is a 61-year-old woman with abdominal pain for which laparotomy was performed because of symptoms of peritonitis. At laparotomy of both cases, 1 liter of pus with the source of uterine was found in the abdominal cavity. The ruptured uterine is also detected. More investigations revealed no malignancy as the reason of the pyometra.

  14. Spontaneous ovarian hyperstimulation syndrome.

    OpenAIRE

    Kasum, Miro; Orešković, Slavko; Ježek, Davor

    2013-01-01

    Spontaneous forms of the ovarian hyperstimulation syndrome (sOHSS) are nearly always reported between 8 and 14 weeks of pregnancy and also with follicle-stimulating hormone (FSH) producing pituitary adenoma. The syndrome has been previously reported in rare instances of increased production of human chorionic gonadotrophin (hCG) such as multiple pregnancies, hydatiforme mole, polycystic ovary disease and elevated concentrations of thyroid-stimulating hormone (TSH) in hypothyreoidism. High lev...

  15. Spontaneous Perforation of Pyometra

    OpenAIRE

    Sharma, Nalini; Singh, Ahanthem Santa; Bhaphiralyne, Wankhar

    2016-01-01

    Pyometra is collection of purulent material which occurs when there is interference with its normal drainage. It is an uncommon condition with incidence of 0.1 to 0.5% of all gynecological patients. Spontaneous rupture of uterus is an extremely rare complication of pyometra. A 65-year-old lady presented with pain abdomen and purulent vaginal discharge. Preoperative diagnosis of pyometra was made by magnetic resonance imaging (MRI). Laparotomy followed by peritoneal lavage and repair of perfor...

  16. Spontaneous spinal epidural abscess.

    LENUS (Irish Health Repository)

    Ellanti, P

    2011-10-01

    Spinal epidural abscess is an uncommon entity, the frequency of which is increasing. They occur spontaneously or as a complication of intervention. The classical triad of fever, back pain and neurological symptoms are not always present. High index of suspicion is key to diagnosis. Any delay in diagnosis and treatment can have significant neurological consequences. We present the case of a previously well man with a one month history of back pain resulting from an epidural abscess.

  17. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Play to listen to this CDC Podcast Running time = 5:29 Your browser does not support the ... or use an alcohol-based hand sanitizer every time, both before and after they touch you. Healthcare ...

  18. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Lives: Patient Admission Video This podcast is for hospital patients and visitors. It emphasizes two key points ... importance of practicing hand hygiene while in the hospital, and that it's appropriate to ask or remind ...

  19. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... two key points to help prevent infections: the importance of practicing hand hygiene while in the hospital, ... and Prevention , Office of the Associate Director for Communications, Division of Public Affairs Follow CDC Email Recommend ...

  20. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... the Centers for Disease Control and Prevention. Your doctor has chosen to admit you to this facility ... sure that everyone who touches you – including your doctor – cleanses their hands too. Patients and their loved ...

  1. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Both of these practices can help prevent the spread of germs. Let's take a look in another ... how important hand hygiene is in preventing the spread of infections. Your loved ones can play an ...

  2. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... wound, or urinary tract, as well as pneumonia. These infections can be serious and hard to treat, ... and your family can do to help prevent these infections – wash your hands and make sure that ...

  3. Arthritis of the Hand

    Science.gov (United States)

    ... of hand and wrist arthritis. (Note: The U.S. Food and Drug Administration does not test dietary supplements. These compounds may cause negative interactions with other medications. Always consult your doctor before taking dietary supplements.) ...

  4. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... This podcast is for hospital patients and visitors. It emphasizes two key points to help prevent infections: ... hand hygiene while in the hospital, and that it's appropriate to ask or remind healthcare providers to ...

  5. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Share Compartir Hand Hygiene Saves Lives: Patient Admission Video This podcast is for hospital patients and visitors. ... than those who don't. In the following video, you'll see how easy it is to ...

  6. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... think about CDC podcasts >> Listen/Watch Recommend on Facebook Tweet Share Compartir Hand Hygiene Saves Lives: Patient ... objects or surfaces in the hospital room, before eating, and after using the restroom. It is important ...

  7. Invisible-hand Explanations

    OpenAIRE

    Dayer-Tieffenbach, Emma

    2011-01-01

    The invisible hand is a theory that shows that legislators, collective agreements and moral concerns are not indispensable to the emergence of social outcomes. It instead describes social outcomes as the unintended consequences of many self-interested actions on the part of individuals. Invisible-hand explanations however often raise criticisms. They are seen as falling short in two ways. First, they unpersuasively present the outcome they explain as an unintended consequence of agents’ behav...

  8. "The dirty hand in the latex glove": a study of hand hygiene compliance when gloves are worn.

    OpenAIRE

    Fuller, C.; J. Savage; Besser, S.; Hayward, A; Cookson, B; Cooper, B.; S. Stone

    2011-01-01

    Wearing of gloves reduces transmission of organisms by healthcare workers' hands but is not a substitute for hand hygiene. Results of previous studies have varied as to whether hand hygiene is worse when gloves are worn. Most studies have been small and used nonstandardized assessments of glove use and hand hygiene. We sought to observe whether gloves were worn when appropriate and whether hand hygiene compliance differed when gloves were worn.

  9. Smart Hand For Manipulators

    Science.gov (United States)

    Fiorini, Paolo

    1987-10-01

    Sensor based, computer controlled end effectors for mechanical arms are receiving more and more attention in the robotics industry, because commonly available grippers are only adequate for simple pick and place tasks. This paper describes the current status of the research at JPL on a smart hand for a Puma 560 robot arm. The hand is a self contained, autonomous system, capable of executing high level commands from a supervisory computer. The mechanism consists of parallel fingers, powered by a DC motor, and controlled by a microprocessor embedded in the hand housing. Special sensors are integrated in the hand for measuring the grasp force of the fingers, and for measuring forces and torques applied between the arm and the surrounding environment. Fingers can be exercised under position, velocity and force control modes. The single-chip microcomputer in the hand executes the tasks of communication, data acquisition and sensor based motor control, with a sample cycle of 2 ms and a transmission rate of 9600 baud. The smart hand described in this paper represents a new development in the area of end effector design because of its multi-functionality and autonomy. It will also be a versatile test bed for experimenting with advanced control schemes for dexterous manipulation.

  10. Mycetoma of the hand

    International Nuclear Information System (INIS)

    To describe the incidence and radiographic signs of hand infection in mycetoma. A retrospective review was carried out from the radiographic records of 516 confirmed cases of mycetoma seen between January 1994 and October 2002 at the referred outpatient clinic of the Mycetoma Research Center, Soba Teaching Hospital, Khartoum University, Sudan, The hands were involved in 24 (4.6%)of the 516 patient. the wrist was involved in 9 (1.7%). Total involvement of hand and wrist was 33 (6.4%) of the 516 patients.Radiographic signs included fanning of the metacarpals, bone erosions, sclerosis, periostitis and soft tissue swelling. The most common sign was soft tissue swelling in 29(88%) while bones were involved in 15 (45%) of the 33 patients. Hand infection in this series is less than previous reports. A wide range of radiographic sign is repoted in hand mycetoma. This is the first detailed report of the radiographic findings in mycetoma of the hand. Early detection of mycetoma infection is important to avoid the need for amputation if the diagnosis is delayed. (author)

  11. [Spontaneous abortion. Etiologic survey. Results].

    Science.gov (United States)

    Baaklini, N; Anguenot, J L; Boulanger, J C; Vitse, M

    1990-12-01

    The definition of repeated spontaneous abortions is subject to caution. For some, it corresponds to at least three repeated spontaneous abortions with no normal previous pregnancy; for others, it comprises the repeated spontaneous abortions occurring after a normal pregnancy. It is a frequent problem, especially if one tries to give a wider definition. The authors studied the frequency of repeated spontaneous abortions in a continuous series of 14,857 pregnancies which took place between January 1982 and December 1988. In the study of the aetiology of the repeated spontaneous abortions in the various groups of women defined according to the number of previous pregnancies and abortions, they find the classical causes of repeated spontaneous abortions in all the categories: therefore, it seems legitimate to them that a wider definition be given for repeated spontaneous abortions. PMID:2291048

  12. The reliability and validity of passive leg raise and fluid bolus to assess fluid responsiveness in spontaneously breathing emergency department patients

    DEFF Research Database (Denmark)

    Duus, Nicolaj; Shogilev, Daniel J; Skibsted, Simon;

    2015-01-01

    : Prospective, observational study of a convenience sample of adult ED patients receiving intravenous fluid bolus. We assessed stroke volume (SV) using NICOM and obtained results from PLR, where the head of the bed was changed from semirecumbent to supine while the patients' legs raised to 45° for 3 minutes...

  13. Assessment of the radio-frequency electromagnetic fields induced in the human body from mobile phones used with hands-free kits

    International Nuclear Information System (INIS)

    In this study, the radiation emission from mobile phones when used with wireless and wired hands-free kits (HFK) was evaluated to determine the necessity for a dedicated compliance procedure and the extent to which the use of wired and wireless HFK can reduce human exposure. The specific absorption rates (SAR) from wireless HFK were determined experimentally. Wired HFK were evaluated dosimetrically while connected to mobile phones (GSM900/1800, UMTS1950) under maximized current coupling onto the HFK cable and various wire routing configurations. In addition, experimentally validated simulations of a wired HFK and a mobile phone operating on anatomical whole-body models were performed. The maximum spatial peak SAR in the head when using wired HFK was more than five times lower than ICNIRP limits. The SAR in the head depends on the output power of the mobile phone, the coupling between the antenna and cable, external attenuation and potential cable specific attenuation. In general, a wired HFK considerably reduces the exposure of the entire head region compared to mobile phones operated at the head, even under unlikely worst-case coupling scenarios. However, wired HFK may cause a localized increase of the exposure in the region of the ear inside the head under worst-case conditions. Wireless HFK exhibit a low but constant exposure.

  14. Hands of early primates.

    Science.gov (United States)

    Boyer, Doug M; Yapuncich, Gabriel S; Chester, Stephen G B; Bloch, Jonathan I; Godinot, Marc

    2013-12-01

    Questions surrounding the origin and early evolution of primates continue to be the subject of debate. Though anatomy of the skull and inferred dietary shifts are often the focus, detailed studies of postcrania and inferred locomotor capabilities can also provide crucial data that advance understanding of transitions in early primate evolution. In particular, the hand skeleton includes characteristics thought to reflect foraging, locomotion, and posture. Here we review what is known about the early evolution of primate hands from a comparative perspective that incorporates data from the fossil record. Additionally, we provide new comparative data and documentation of skeletal morphology for Paleogene plesiadapiforms, notharctines, cercamoniines, adapines, and omomyiforms. Finally, we discuss implications of these data for understanding locomotor transitions during the origin and early evolutionary history of primates. Known plesiadapiform species cannot be differentiated from extant primates based on either intrinsic hand proportions or hand-to-body size proportions. Nonetheless, the presence of claws and a different metacarpophalangeal [corrected] joint form in plesiadapiforms indicate different grasping mechanics. Notharctines and cercamoniines have intrinsic hand proportions with extremely elongated proximal phalanges and digit rays relative to metacarpals, resembling tarsiers and galagos. But their hand-to-body size proportions are typical of many extant primates (unlike those of tarsiers, and possibly Teilhardina, which have extremely large hands). Non-adapine adapiforms and omomyids exhibit additional carpal features suggesting more limited dorsiflexion, greater ulnar deviation, and a more habitually divergent pollex than observed plesiadapiforms. Together, features differentiating adapiforms and omomyiforms from plesiadapiforms indicate increased reliance on vertical prehensile-clinging and grasp-leaping, possibly in combination with predatory behaviors in

  15. Hand protection from ultraviolet exposure

    Energy Technology Data Exchange (ETDEWEB)

    Khazova, M.; O' Hagan, J.B. [Health Protection Agency, Radiation Protection Division, Chilton, Did cot (United Kingdom)

    2006-07-01

    Full text of publication follows: A number of industrial applications and public services involve exposure to ultraviolet radiation (U.V.R.) from a variety of lamps and lasers, for example, in forensic examination, biological trans-illuminators, dentistry, laser material processing, microelectronics, etc. The proposed European Union Directive on Optical Radiation would place specific requirements on employers to provide adequate safety measures to reduce exposure to U.V.R., including gloves for hand protection. The selection of gloves should be based on a risk assessment and on the performance characteristics of the gloves for the task. However, current International and national standards do not describe evaluation procedures of disposable gloves for hand protection against non-ionising radiation. A methodology for assessment of the UV protection level for disposable gloves and a simple measurement protocol are proposed, based on a common approach with UV protection by clothing and sunscreens. Glove Ultraviolet Protection Factor is defined as a time-scale increase in exposure permitted for the hand protected by a glove with respect to an unprotected hand. However, the wide variety of U.V.R. sources and the real-life conditions of glove use (stretching and wetting the surface by liquids) bring substantial challenges to the assessment method. Our study of {approx} 50 samples of widely used disposable gloves made of different materials (nitrile, vinyl, latex and chloroprene) showed that for all tested gloves a change in U.V.R. attenuation with stretching is characteristic for the type of glove material and can be included as a scaling factor in the definition of U.V.R. protection. Glove material has a bigger effect on U.V.R. protection level than variations in the glove thickness or its colour. The following approaches are suggested to overcome the problem of variable U.V.R. sources: - Worst case scenario minimal protection level, most restrictive case - Application

  16. Hand protection from ultraviolet exposure

    International Nuclear Information System (INIS)

    Full text of publication follows: A number of industrial applications and public services involve exposure to ultraviolet radiation (U.V.R.) from a variety of lamps and lasers, for example, in forensic examination, biological trans-illuminators, dentistry, laser material processing, microelectronics, etc. The proposed European Union Directive on Optical Radiation would place specific requirements on employers to provide adequate safety measures to reduce exposure to U.V.R., including gloves for hand protection. The selection of gloves should be based on a risk assessment and on the performance characteristics of the gloves for the task. However, current International and national standards do not describe evaluation procedures of disposable gloves for hand protection against non-ionising radiation. A methodology for assessment of the UV protection level for disposable gloves and a simple measurement protocol are proposed, based on a common approach with UV protection by clothing and sunscreens. Glove Ultraviolet Protection Factor is defined as a time-scale increase in exposure permitted for the hand protected by a glove with respect to an unprotected hand. However, the wide variety of U.V.R. sources and the real-life conditions of glove use (stretching and wetting the surface by liquids) bring substantial challenges to the assessment method. Our study of ∼ 50 samples of widely used disposable gloves made of different materials (nitrile, vinyl, latex and chloroprene) showed that for all tested gloves a change in U.V.R. attenuation with stretching is characteristic for the type of glove material and can be included as a scaling factor in the definition of U.V.R. protection. Glove material has a bigger effect on U.V.R. protection level than variations in the glove thickness or its colour. The following approaches are suggested to overcome the problem of variable U.V.R. sources: - Worst case scenario minimal protection level, most restrictive case - Application

  17. Hand eczema: An update

    Directory of Open Access Journals (Sweden)

    Chembolli Lakshmi

    2012-01-01

    Full Text Available Eczema, the commonest disorders afflicting the hands, is also the commonest occupational skin disease (OSD. In the dermatology outpatient departments, only the severe cases are diagnosed since patients rarely report with early hand dermatitis. Mild forms are picked up only during occupational screening. Hand eczema (HE can evolve into a chronic condition with persistent disease even after avoiding contact with the incriminated allergen / irritant. The important risk factors for hand eczema are atopy (especially the presence of dermatitis, wet work, and contact allergy. The higher prevalence in women as compared to men in most studies is related to environmental factors and is mainly applicable to younger women in their twenties. Preventive measures play a very important role in therapy as they enable the affected individuals to retain their employment and livelihood. This article reviews established preventive and therapeutic options and newer drugs like alitretinoin in hand eczema with a mention on the etiology and morphology. Identifying the etiological factors is of paramount importance as avoiding or minimizing these factors play an important role in treatment.

  18. Comparison of carcinogen, carbon monoxide, and ultrafine particle emissions from narghile waterpipe and cigarette smoking: Sidestream smoke measurements and assessment of second-hand smoke emission factors

    Science.gov (United States)

    Daher, Nancy; Saleh, Rawad; Jaroudi, Ezzat; Sheheitli, Hiba; Badr, Thérèse; Sepetdjian, Elizabeth; Al Rashidi, Mariam; Saliba, Najat; Shihadeh, Alan

    2010-01-01

    The lack of scientific evidence on the constituents, properties, and health effects of second-hand waterpipe smoke has fueled controversy over whether public smoking bans should include the waterpipe. The purpose of this study was to investigate and compare emissions of ultrafine particles (UFP, hookah) waterpipes. These smoke constituents are associated with a variety of cancers, and heart and pulmonary diseases, and span the volatility range found in tobacco smoke. Sidestream cigarette and waterpipe smoke was captured and aged in a 1 m 3 Teflon-coated chamber operating at 1.5 air changes per hour (ACH). The chamber was characterized for particle mass and number surface deposition rates. UFP and CO concentrations were measured online using a fast particle spectrometer (TSI 3090 Engine Exhaust Particle Sizer), and an indoor air quality monitor. Particulate PAH and gaseous volatile aldehydes were captured on glass fiber filters and DNPH-coated SPE cartridges, respectively, and analyzed off-line using GC-MS and HPLC-MS. PAH compounds quantified were the 5- and 6-ring compounds of the EPA priority list. Measured aldehydes consisted of formaldehyde, acetaldehyde, acrolein, methacrolein, and propionaldehyde. We found that a single waterpipe use session emits in the sidestream smoke approximately four times the carcinogenic PAH, four times the volatile aldehydes, and 30 times the CO of a single cigarette. Accounting for exhaled mainstream smoke, and given a habitual smoker smoking rate of 2 cigarettes per hour, during a typical one-hour waterpipe use session a waterpipe smoker likely generates ambient carcinogens and toxicants equivalent to 2-10 cigarette smokers, depending on the compound in question. There is therefore good reason to include waterpipe tobacco smoking in public smoking bans.

  19. Comparison of carcinogen, carbon monoxide, and ultrafine particle emissions from narghile waterpipe and cigarette smoking: Sidestream smoke measurements and assessment of second-hand smoke emission factors

    Science.gov (United States)

    Daher, Nancy; Saleh, Rawad; Jaroudi, Ezzat; Sheheitli, Hiba; Badr, Thérèse; Sepetdjian, Elizabeth; Al Rashidi, Mariam; Saliba, Najat; Shihadeh, Alan

    2010-01-01

    The lack of scientific evidence on the constituents, properties, and health effects of second-hand waterpipe smoke has fueled controversy over whether public smoking bans should include the waterpipe. The purpose of this study was to investigate and compare emissions of ultrafine particles (UFP, range found in tobacco smoke. Sidestream cigarette and waterpipe smoke was captured and aged in a 1 m 3 Teflon-coated chamber operating at 1.5 air changes per hour (ACH). The chamber was characterized for particle mass and number surface deposition rates. UFP and CO concentrations were measured online using a fast particle spectrometer (TSI 3090 Engine Exhaust Particle Sizer), and an indoor air quality monitor. Particulate PAH and gaseous volatile aldehydes were captured on glass fiber filters and DNPH-coated SPE cartridges, respectively, and analyzed off-line using GC-MS and HPLC-MS. PAH compounds quantified were the 5- and 6-ring compounds of the EPA priority list. Measured aldehydes consisted of formaldehyde, acetaldehyde, acrolein, methacrolein, and propionaldehyde. We found that a single waterpipe use session emits in the sidestream smoke approximately four times the carcinogenic PAH, four times the volatile aldehydes, and 30 times the CO of a single cigarette. Accounting for exhaled mainstream smoke, and given a habitual smoker smoking rate of 2 cigarettes per hour, during a typical one-hour waterpipe use session a waterpipe smoker likely generates ambient carcinogens and toxicants equivalent to 2-10 cigarette smokers, depending on the compound in question. There is therefore good reason to include waterpipe tobacco smoking in public smoking bans.

  20. Maturation disparity between hand-wrist bones in a Chinese sample of normal children: An analysis based on automatic boneXpert and manual Greulich and Pyle atlas assessment

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Ji; Dig, Xiao Yi [Dept. of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai (China); Lin, Fang Qin [Dept. of Radiology, Shanghai Children' s Hospital, Shanghai Jiao Tong University, Shanghai (China)

    2016-06-15

    To assess the maturation disparity of hand-wrist bones using the BoneXpert system and Greulich and Pyle (GP) atlas in a sample of normal children from China. Our study included 229 boys and 168 girls aged 2 - 14 years. The bones in the hand and wrist were divided into five groups: distal radius and ulna, metacarpals, proximal phalanges, middle phalanges and distal phalanges. Bone age (BA) was assessed separately using the automatic BoneXpert and GP atlas by two raters. Differences in the BA between the most advanced and retarded individual bones and bone groups were analyzed. In 75.8% of children assessed with the BoneXpert and 59.4% of children assessed with the GP atlas, the BA difference between the most advanced and most retarded individual bones exceeded 2.0 years. The BA mean differences between the most advanced and most retarded individual bones were 2.58 and 2.25 years for the BoneXpert and GP atlas methods, respectively. Furthermore, for both methods, the middle phalanges were the most advanced group. The most retarded group was metacarpals for BoneXpert, while metacarpals and the distal radius and ulna were the most retarded groups according to the GP atlas. Overall, the BAs of the proximal and distal phalanges were closer to the chronological ages than those of the other bone groups. Obvious and regular maturation disparities are common in normal children. Overall, the BAs of the proximal and distal phalanges are more useful for BA estimation than those of the other bone groups.

  1. Effects of a Modified Hand Compression Bandage for Treatment of Post-Burn Hand Edemas

    Science.gov (United States)

    Park, Won Yong; Joo, So Young; Jang, Ki Un; Seo, Cheong Hoon; Jun, Ah Young

    2016-01-01

    Objective To evaluate the effect of a modified hand compression bandage in patients with a post-burn hand edema. Methods Patients were recruited from burn centers. We classified the patients into two groups: the modified hand compression bandage group comprising of 22 patients who had a modified hand compression bandage and received conventional physical therapy and the conventionally treated group, comprising of 20 patients who received only conventional physical therapy during the 4-week period post-burn. Hand circumference, hand skin thickness, and hand function were evaluated by grip strength, active range of motion (ROM), Jebsen hand function test, and visual analogue scale (VAS). These assessments were used to evaluate treatment effectiveness prior to the first treatment, 2 weeks after the first treatment, 4 weeks after the first treatment, and 4 months after the first treatment. Results As a result of repeated-measures analysis of variance on hand circumference, skin thickness, VAS, and each metacarpophalangeal joint ROM, we found significant differences that corresponded to time effect (p0.05). Conclusion The modified hand compression bandage will be clinically useful for the treatment of patients with post-burn hand edemas. PMID:27152286

  2. Spontaneous Collapse of Supersymmetry

    CERN Document Server

    Buchholz, D A; Buchholz, Detlev; Ojima, Izumi

    1997-01-01

    It is shown that, if generators of supersymmetry transformations (supercharges) can be defined in a spatially homogeneous physical state, then this state describes the vacuum. Thus, supersymmetry is broken in any thermal state and it is impossible to proceed from it by ``symmetrization'' to states on which an action of supercharges can be defined. So, unlike the familiar spontaneous breakdown of bosonic symmetries, there is a complete collapse of supersymmetry in thermal states. It is also shown that spatially homogeneous superthermal ensembles are never supersymmetric.

  3. Kahal as Spontaneous Order

    OpenAIRE

    Joseph Isaac Lifshitz

    2009-01-01

    One description of the people of Israel is Kahal, a category that the Talmud is also concerned with. This category was further employed later in the middle ages, and was given to the Jewish community, although some times with a little twist, the Kehila. This paper will focus mainly on the question of the formation of the Kahal as a large political body in the Bible and in the Talmud, and explore the political implications that can be derived from it. The Kahal as a spontaneously-defined, non-...

  4. Spontaneously broken mass

    CERN Document Server

    Endlich, Solomon; Penco, Riccardo

    2013-01-01

    The Galilei group involves mass as a central charge. We show that the associated superselection rule is incompatible with the observed phenomenology of superfluid helium 4: this is recovered only under the assumption that mass is spontaneously broken. This remark is somewhat immaterial for the real world, where the correct space-time symmetries are encoded by the Poincar\\'e group, which has no central charge. Yet it provides an explicit example of how superselection rules can be experimentally tested. We elaborate on what conditions must be met for our ideas to be generalizable to the relativistic case of the integer/half-integer angular momentum superselection rule.

  5. Individual differences in physiological flexibility predict spontaneous avoidance.

    Science.gov (United States)

    Aldao, Amelia; Dixon-Gordon, Katherine L; De Los Reyes, Andres

    2016-08-01

    People often regulate their emotions by resorting to avoidance, a putatively maladaptive strategy. Prior work suggests that increased psychopathology symptoms predict greater spontaneous utilisation of this strategy. Extending this work, we examined whether heightened resting cardiac vagal tone (which reflects a general ability to regulate emotions in line with contextual demands) predicts decreased spontaneous avoidance. In Study 1, greater resting vagal tone was associated with reduced spontaneous avoidance in response to disgust-eliciting pictures, beyond anxiety and depression symptoms and emotional reactivity. In Study 2, resting vagal tone interacted with anxiety and depression symptoms to predict spontaneous avoidance in response to disgust-eliciting film clips. The positive association between symptoms and spontaneous avoidance was more pronounced among participants with reduced resting vagal tone. Thus, increased resting vagal tone might protect against the use of avoidance. Our findings highlight the importance of assessing both subjective and biological processes when studying individual differences in emotion regulation. PMID:26147365

  6. Hand Models Emerge in China

    Institute of Scientific and Technical Information of China (English)

    CHENGTIELIANG

    2003-01-01

    CHINESE women have now discovered that beautiful hands are realizable assets. A new career invites those with shapely hands: that of hand model. This nascent profession has great prospects, as images involving hands are essential in the advertising business for promotion of such products as jewelry, watches and cell phones. Certain film stars also employ standins for hand close-ups.

  7. Hand Hygiene: When and How

    Science.gov (United States)

    Hand Hygiene When and How August 2009 How to handrub? How to handwash? RUB HANDS FOR HAND HYGIENE! WASH HANDS WHEN VISIBLY SOILED Duration of the ... its use. When? YOUR 5 MOMENTS FOR HAND HYGIENE 1 BEFORETOUCHINGA PATIENT 2 B P ECFLOER R ...

  8. Adam Smith's Invisible Hands

    OpenAIRE

    Persky, Joseph

    2004-01-01

    William Grampp’s JPE article on Adam Smith is creative and provocative. It errs, however, by disparaging the invisible hand’s importance as a symbol of various economic processes that help societies prosper in ways that individuals neither intend nor comprehend. Four specific problems stand out. First, Grampp unsoundly tries to limit the relevance of the invisible hand within the Wealth of Nations to situations in which a merchant increases domestic capital and strengthens national defens...

  9. [Skin and hand disinfection].

    Science.gov (United States)

    Mathis, U

    1991-04-01

    In modern medicine, hygiene has become an issue of ever increasing importance. Disinfection of hands is crucial, since hands are the main vector of bacteria. Successful disinfection depends not only on the appropriate choice of an active agent, but equally so on proper techniques and skin care. The spectre and the time profile of activity as well as the skin-protecting properties of the chosen disinfectant must be known. Basic knowledge of disinfection is necessary for a rational interpretation of the information given in the glossy printed material of advertisement. PMID:1858061

  10. Hand dominance in orthopaedic surgeons.

    LENUS (Irish Health Repository)

    Lui, Darren F

    2012-08-01

    Handedness is perhaps the most studied human asymmetry. Laterality is the preference shown for one side and it has been studied in many aspects of medicine. Studies have shown that some orthopaedic procedures had poorer outcomes and identified laterality as a contributing factor. We developed a questionnaire to assess laterality in orthopaedic surgery and compared this to an established scoring system. Sixty-two orthopaedic surgeons surveyed with the validated Waterloo Handedness Questionnaire (WHQ) were compared with the self developed Orthopaedic Handedness Questionnaire (OHQ). Fifty-eight were found to be right hand dominant (RHD) and 4 left hand dominant (LHD). In RHD surgeons, the average WHQ score was 44.9% and OHQ 15%. For LHD surgeons the WHQ score was 30.2% and OHQ 9.4%. This represents a significant amount of time using the non dominant hand but does not necessarily determine satisfactory or successful dexterity transferable to the operating room. Training may be required for the non dominant side.

  11. Spontaneous compactification and Ricci-flat manifolds with torsion

    International Nuclear Information System (INIS)

    The Freund-Rubin mechanism is based on the equation Rsub(ik)=lambdagsub(ik) (where lambda>0), which, via Myers' Theorem, implies ''spontaneous'' compactification. The difficulties connected with the cosmological constant in this approach can be resolved if torsion is introduced and lambda set equal to zero, but then compactification ''by hand'' is necessary, since the equation Rsub(ik)=0 can be satisfied both on compact and on non-compact manifolds. In this paper we discuss the global geometry of Ricci-flat manifolds with torsion, and suggest ways of restoring the ''spontaneity'' of the compactification. (author)

  12. Spontaneous Gestures during Mental Rotation Tasks: Insights into the Microdevelopment of the Motor Strategy

    Science.gov (United States)

    Chu, Mingyuan; Kita, Sotaro

    2008-01-01

    This study investigated the motor strategy involved in mental rotation tasks by examining 2 types of spontaneous gestures (hand-object interaction gestures, representing the agentive hand action on an object, vs. object-movement gestures, representing the movement of an object by itself) and different types of verbal descriptions of rotation.…

  13. Incomplete spontaneous ureteral disruption

    International Nuclear Information System (INIS)

    Background. The aim of the authors was to present the case of spontaneous partial ureteral rupture during a renal colic, caused by an anorganic concrement in the proximal part of the left ureter, at the level of the transverse processus of L3. Case report. On the excretory urography imaging, the dilatation of the canal system, cups, necks and pyelon, was observed. At the level of the pyeloureteric passage, the contrast medium was leaking. The leakage was found to be extending along the psoas muscle to the pelvis. On the transversal CT imaging scans, the contrast medium was seen along the medial and dorsal part of the perirenal space, and in the distal part, along the psoas muscle to the pelvis. The ureter was imaged from the pyeloureterical rupture to the site of the concrement. No signs of the damage of the renal parenchyma or perirenal bleeding were detected. During surgery, the site of the rupture was found and also a lot of the perirenal and periureteral liquid. After the extraction of the concrement, the suture of the rupture was made. Postoperative urography and CT showed a normal ureteral image. Conclusions. At the spontaneous partial disruption of the ureter, the contrast medium is still seen in the ureter, distally from the site of the rupture and as extravasation along the psoas muscle. (author)

  14. Quantum Spontaneous Stochasticity

    CERN Document Server

    Eyink, Gregory L

    2015-01-01

    The quantum wave-function of a massive particle with small initial uncertainties (consistent with the uncertainty relation) is believed to spread very slowly, so that the dynamics is deterministic. This assumes that the classical motions for given initial data are unique. In fluid turbulence non-uniqueness due to "roughness" of the advecting velocity field is known to lead to stochastic motion of classical particles. Vanishingly small random perturbations are magnified by Richardson diffusion in a "nearly rough" velocity field so that motion remains stochastic as the noise disappears, or classical spontaneous stochasticity, . Analogies between stochastic particle motion in turbulence and quantum evolution suggest that there should be quantum spontaneous stochasticity (QSS). We show this for 1D models of a particle in a repulsive potential that is "nearly rough" with $V(x) \\sim C|x|^{1+\\alpha}$ at distances $|x|\\gg \\ell$ , for some UV cut-off $\\ell$, and for initial Gaussian wave-packet centered at 0. We consi...

  15. Enhanced spontaneous thrombolysis: a new therapeutic challenge.

    Science.gov (United States)

    Kovacs, I B; Gorog, D A; Yamamoto, J

    2006-06-01

    Spontaneous thrombolysis is an endogenous protective mechanism against lasting arterial thrombotic occlusion, which is implicated in the pathogenesis of myocardial infarction and acute coronary events. Novel therapies for coronary heart disease (CHD) targeting atherosclerosis and thrombosis, together with cardiovascular prevention programs targeting risk-factors and lifestyle provide evidence that CHD is preventable. Although reduced fibrinolytic activity is a recognized risk-factor for ischemic cardiovascular events, it has so far been neglected. Our knowledge of the fibrinolytic effect of drugs commonly used for CHD such as antiplatelet agents (aspirin, ticlopidine, clopidogrel), anti-diabetic biguanides (phenformin, metformin) or anti-hypertensive drugs is scanty and conflicting. This is mainly due to the lack of a global test of spontaneous thrombolysis, as opposed to fibrinolysis of plasma or whole blood, i.e. the assessment of various activators and inhibitors of the fibrinolytic system. A recently described technique allows the measurement of spontaneous thrombolysis, that is, lysis of an autologous platelet-rich thrombus in the absence of added plasminogen activators. Early results suggest that this test may have significant clinical potential both in identifying those at risk of fatal cardiac events and in finding new therapeutic avenues or lifestyles to improve spontaneous thrombolytic activity. PMID:16683213

  16. Hand washing promotion for preventing diarrhoea

    OpenAIRE

    Ejemot-Nwadiaro, Regina I; Ehiri, John E.; Arikpo, Dachi; Meremikwu, Martin M; Critchley, Julia A

    2015-01-01

    Background Diarrhoea accounts for 1.8 million deaths in children in low- and middle-income countries (LMICs). One of the identified strategies to prevent diarrhoea is hand washing. Objectives To assess the effects of hand washing promotion interventions on diarrhoeal episodes in children and adults. Search methods We searched the Cochrane Infectious Diseases Group Specialized Register (27 May 2015); CENTRAL (published in the Cochrane Library 2015, Issue 5); MEDLINE (1966 to 27 May 2015); EMBA...

  17. Hand hygiene in reducing transient flora on the hands of healthcare workers: An educational intervention

    Directory of Open Access Journals (Sweden)

    R Kapil

    2015-01-01

    Full Text Available Aim: Hand hygiene has now been recognised as one of the most effective intervention to control the transmission of infections in a hospital and education is an important tool to ensure its implementation. In order to convince the users and as a part of education, it is important to generate evidence on the role of hand hygiene in reducing the bacterial flora on their hands. The present study was undertaken in a tertiary care hospital to demonstrate the presence of bacterial flora on the hands of healthcare workers (HCW in different categories, to teach them proper hand hygiene technique using alcohol-based hand rub and determine the outcome for reduction of bacteria. Materials and Methods: A total sample size of 60 subjects including resident doctors, medical students, nurses and hospital attendants were included in the study after obtaining informed consent. Each person was educated on the technique of hand hygiene with alcohol-based hand rub and hand impressions were cultured before and after hand hygiene. All the subjects were also given a questionnaire to assess their perception on hand hygiene. The WHO posters on proper hand hygiene were displayed in the appropriate areas of the hospital in addition, as an educational tool. Results: Majority (42 out of 60 of the HCWs had bacterial count up to 100 colonies or more on both hands before the application of hand rub while working in the hospital. After use of alcohol hand rub with a proper hand hygiene technique, it was found that the percentage reduction was 95-99% among doctors and nurses, 70% among hospital attendants and 50% among sanitary attendants. Staphylococcus aureus was present on the hands of eight persons of which three were methicillin-resistant Staphylococcus aureus. Conclusions: The study demonstrates that transient bacteria are present on the hands of HCWs but majority could be removed by proper hand hygiene, which needs continuous education to be effective. It also shows that

  18. Wash Your Hands

    Centers for Disease Control (CDC) Podcasts

    2010-03-08

    This video shows kids how to properly wash their hands, one of the most important steps we can take to avoid getting sick and spreading germs to others.  Created: 3/8/2010 by Centers for Disease Control and Prevention (CDC).   Date Released: 3/8/2010.

  19. Hands-on Humidity.

    Science.gov (United States)

    Pankiewicz, Philip R.

    1992-01-01

    Presents five hands-on activities that allow students to detect, measure, reduce, and eliminate moisture. Students make a humidity detector and a hygrometer, examine the effects of moisture on different substances, calculate the percent of water in a given food, and examine the absorption potential of different desiccants. (MDH)

  20. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... A B C D E F G H I J K L M N O P Q ... Control and Prevention. CDC – safer, healthier people. Hello. I'm Dr. John Jernigan from the Centers for ... sure everyone around you washes their hands. Hi, I'm Gayle. Now that you've been admitted ...

  1. Left-handed completeness

    OpenAIRE

    Kozen, Dexter; Silva, Alexandra

    2012-01-01

    Lecture Notes in Computer Science 7560, 2012 We give a new, significantly shorter proof of the completeness of the left-handed star rule of Kleene algebra. The proof exposes the rich interaction of algebra and coalgebra in the theory of Kleene algebra.

  2. Put Your Hands Together

    Centers for Disease Control (CDC) Podcasts

    2011-03-24

    In this podcast, learn how to help stop the spread of infection and stay healthy. It's easy when you 'Put Your Hands Together.'.  Created: 3/24/2011 by National Center for Preparedness, Detection, and Control of Infectious Diseases (NCPDCID) and National Center for Zoonotic, Vector-Borne, and Enteric Diseases (NCZVED).   Date Released: 3/24/2011.

  3. Mechanical cornpicker hand injuries

    Directory of Open Access Journals (Sweden)

    Momčilović Dragan

    2005-01-01

    Full Text Available Mechanical cornpicker hand injuries are not frequent in comparison to general hand trauma, but they have a specific mechanism of occurrence and are very severe. This investigation included 221 hand injuries. The sex distribution shows a general male dominance (85.25% in their active age (84.44%. These are, seasonal injuries mostly occurring in October (75.11%. By type of injuries, mutilating crush injuries are most frequent (64.25%. After completing the treatment, in most cases the functional result were estimated as bad (50.68%. Data concerning education and training for operating agricultural machines (96.38% - patients without training and carrying out safety measures (63.35% of injured patients did not apply any protection measures are devastating. The number of these injuries, as well as consequent permanent disabilities, may be considerably reduced by preventive measures, including public health services and media. Use of contemporary agricultural machinery, as well as obligatory training for operating these machines and application of protective measures, may also reduce the incidence of hand injuries during corn picking.

  4. Comparison of surgical hand scrub and alcohol surgical hand rub on reducing hand microbial burden.

    Science.gov (United States)

    Ghorbani, Azam; Shahrokhi, Akram; Soltani, Zahra; Molapour, Azam; Shafikhani, Mahin

    2012-02-01

    This study was performed to compare the effects of two hand decontamination methods on the microbial burden of operating room staff hands. The surgical hand washing methods compared were a traditional surgical hand scrub using a povidone iodine solution, and a social wash using a liquid non-antibacterial soap followed by the application of an alcoholic hand rub. PMID:22724306

  5. Imaging of early spontaneous osteonecrosis and osteoarthritis of the knee

    Energy Technology Data Exchange (ETDEWEB)

    Kusayama, Takeshi; Tomatsu, Taisuke [Tokai Univ. Naka, Kanagawa (Japan). Oiso Hospital

    1999-02-01

    In this paper, the available of MRI in diagnosis on early spontaneous osteonecrosis and osteoarthritis was investigated. Subjects were 5 cases (5 knees) with spontaneous osteonecrosis (stage 1 in Koshino`s classification) and 96 cases (104 knees) in osteoarthritis who were more than 50 years old. Patients with an early spontaneous osteonecrosis were elderly females and had night pain and severe spontaneous pain. On MRI, lesions of all cases were clearly detected in early stage. On the other hand, only 47 of 104 knees (45%) were detected in patients with osteoarthritis, and mirror lesions at shank sides were detected in 45 of 47 knees. These results suggest that it is possible to diagnose early spontaneous osteonecrosis from osteoarthritis by MRI image with the clue to mirror lesion at shank sides, incidence, stage, etc. On the diagnosis of early spontaneous osteonecrosis, MRI image should be performed as soon as possible if a patient was older, had no anamnesis of lesions, and no changes by the X-ray radiography in spite of severe pain of the knee joints. (K.H.)

  6. Hand/Wrist Disorders among Sign Language Communicators.

    Science.gov (United States)

    Smith, Susan M.; Kress, Tyler A.; Hart, William M.

    2000-01-01

    A study assessed the frequency of self-reported hand/wrist problems among 184 sign-language communicators. Fifty-nine percent reported experiencing hand/wrist problems, 26 percent reported experiencing hand/wrist problems severe enough to limit their ability to work, and 18 percent reported a medical diagnosis of wrist tendinitis, carpal tunnel…

  7. Assessment

    Institute of Scientific and Technical Information of China (English)

    Geoff Brindley

    2005-01-01

    @@ Introduction TERMINOLOGY AND KEY CONCEPTS The term assessment refers to a variety of ways of collecting information on a learner's language ability or achievement. Although testing and assessment are often used interchangeably, the latter is an umbrella term encompassing measurement instruments administered on a ‘one-off’ basis such as tests, as well as qualitative methods of monitoring and recording student learning such as observation, simulations of project work. Assessment is also distinguished from evaluation which is concerned with the overall language programme and not just with what individual students have learnt. Proficiency assessment refers to the assessment of general language abilities acquired by the learner independent of a course of study.This kind of assessment is often done through the administration of standardised commercial language-proficency tests. On the other hand, assessment of achievement aims to establish what a student had learned in relation to a particular course or curriculum (thus frequently carried out by the teacher) .Achievement assesssment may be based either on the specific content of the course or on the course objectives (Hughes 1989).

  8. Repeated hands-and-knees positioning during labour: a randomized pilot study

    Directory of Open Access Journals (Sweden)

    Ellen D. Hodnett

    2013-02-01

    Full Text Available Background. Caesarean birth rates in North America continue to rise, in the absence of benefit for mothers and babies. One reason may be that hospitalized labouring women spend most of their labours in recumbent or semi-recumbent positions. Although hands-and-knees position has theoretical advantages, efforts to encourage its adoption in practice are severely hampered by the lack of compelling evidence that it is beneficial. Before a definitive, large scale trial, with spontaneous vaginal birth as the primary outcome, could be justified in terms of time, effort, and expense, several feasibility and acceptability questions had to be addressed. We aimed to enrol 60 women in a pilot study to assess feasibility and acceptability of the trial protocol, and to obtain estimates of treatment effects on method of birth and persistent back pain. Methods. We conducted a pilot study at two North American hospitals. In ten months of recruitment, 30 nulliparous women in labour at term were randomly allocated to either usual care (use of any position during labour except hands-and-knees or to try hands-and-knees for 15 min every hour during labour. Data were collected about compliance, acceptability, persistent back pain, intrapartum interventions, and women’s views of their experiences. Results. Although mean length of time from randomization to delivery was over 12 hours, only 9 of the 16 women allocated to repeated hands-and-knees used it more than twice. Two of the 14 in the usual care group used hands-and-knees once. Twenty-seven women had regional analgesia (15 in the hands-and-knees group and 12 in the usual care group. Eleven in the hands-and-knees group and 14 in the usual care group had spontaneous vaginal births. One woman (in the hands-and-knees group had a vacuum extraction. Four women in the hands-and-knees group and none in the usual care group gave birth by caesarean section. Hourly back pain ratings were highly variable in both groups

  9. Spontaneous Coronary Artery Dissection.

    Science.gov (United States)

    Tweet, Marysia S; Gulati, Rajiv; Hayes, Sharonne N

    2016-07-01

    Spontaneous coronary artery dissection is an important etiology of nonatherosclerotic acute coronary syndrome, myocardial infarction, and sudden death. Innovations in the catheterization laboratory including optical coherence tomography and intravascular ultrasound have enhanced the ability to visualize intimal disruption and intramural hematoma associated with SCAD. Formerly considered "rare," these technological advances and heightened awareness suggest that SCAD is more prevalent than prior estimates. SCAD is associated with female sex, young age, extreme emotional stress, or extreme exertion, pregnancy, and fibromuscular dysplasia. The clinical characteristics and management strategies of SCAD patients are different than for atherosclerotic heart disease and deserve specific consideration. This review will highlight recent discoveries about SCAD as well as describe current efforts to elucidate remaining gaps in knowledge. PMID:27216840

  10. Spontaneous wave packet reduction

    International Nuclear Information System (INIS)

    There are taken into account the main conceptual difficulties met by standard quantum mechanics in dealing with physical processes involving macroscopic system. It is stressed how J.A.Wheeler's remarks and lucid analysis have been relevant to pinpoint and to bring to its extreme consequences the puzzling aspects of quantum phenomena. It is shown how the recently proposed models of spontaneous dynamical reduction represent a consistent way to overcome the conceptual difficulties of the standard theory. Obviously, many nontrivial problems remain open, the first and more relevant one being that of generalizing the model theories considered to the relativistic case. This is the challenge of the dynamical reduction program. 43 refs, 2 figs

  11. Spontaneous ovarian hyperstimulation syndrome.

    Science.gov (United States)

    Kasum, Miro; Oresković, Slavko; Jezek, Davor

    2013-06-01

    Spontaneous forms of the ovarian hyperstimulation syndrome (sOHSS) are nearly always reported between 8 and 14 weeks of pregnancy and also with follicle-stimulating hormone (FSH) producing pituitary adenoma. The syndrome has been previously reported in rare instances of increased production of human chorionic gonadotrophin (hCG) such as multiple pregnancies, hydatiforme mole, polycystic ovary disease and elevated concentrations of thyroid-stimulating hormone (TSH) in hypothyreoidism. High levels of these hormones are able to stimulate by natural promiscuous activation the wild-type FSHr, resulting in sporadic presentations of the syndrome. Since 2003, only six different activating FSHr gene mutations have been reported in cases of familial or habitual sOHSS. In addition to five mutations which have been found in the transmembrane helices (Asp567Asn, Asp567Gly, Thr449Ile, Thr449Ala, Ile545Thr), the first germline mutation (c.383C > A, p. Ser 128 Tyr) in the extracelullar domain was identified. All five mutants were abnormally activated by TSH and normal levels of hCG while displaying constitutive activity. In contrast to these mutations, the p.Ser128Tyr mutant displayed an increase in sensitivity only toward hCG. Accordingly, the mutated FSHrs, may be hyperstimulated by the pregnancy-derived hCG or TSH, inducing the occurrence of the syndrome. In the differential diagnosis, malignancy, pregnancy luteoma and hyperreactio luteinalis would have to be excluded. In almost all of the cases the disease regresses spontaneously and could be managed expectantly or conservatively, but with termination of pregnancy or surgery in cases of complications. PMID:23941020

  12. Alien Hand Syndrome.

    Science.gov (United States)

    Hassan, Anhar; Josephs, Keith A

    2016-08-01

    Alien hand syndrome (AHS) is a rare disorder of involuntary limb movement together with a sense of loss of limb ownership. It most commonly affects the hand, but can occur in the leg. The anterior (frontal, callosal) and posterior variants are recognized, with distinguishing clinical features and anatomical lesions. Initial descriptions were attributed to stroke and neurosurgical operations, but neurodegenerative causes are now recognized as most common. Structural and functional imaging and clinical studies have implicated the supplementary motor area, pre-supplementary motor area, and their network connections in the frontal variant of AHS, and the inferior parietal lobule and connections in the posterior variant. Several theories are proposed to explain the pathophysiology. Herein, we review the literature to update advances in the understanding of the classification, pathophysiology, etiology, and treatment of AHS. PMID:27315251

  13. Solo hand surgery

    OpenAIRE

    Bell, Michael SG; Reitsma, Bert J

    2005-01-01

    Unassisted hand surgery is being undertaken by necessity for both elective and emergency cases, due to hospital resource restrictions. The authors outline the principles of local anesthesia, surgeon-controlled tourniquet techniques, and a number of new instruments which allow a surgeon to work in comfort and safety, unassisted. The traditional surgical instruments designed for the days when trained surgical assistants were available to hold them are no longer suitable. We are entering a new e...

  14. Hand functioning in children with cerebral palsy

    Directory of Open Access Journals (Sweden)

    Carlyne eArnould

    2014-04-01

    Full Text Available Brain lesions may disturb hand functioning in children with cerebral palsy (CP, making it difficult or even impossible for them to perform several manual activities. Most conventional treatments for hand dysfunction in CP assume that reducing the hand dysfunctions will improve the capacity to manage activities (i.e., manual ability, MA. The aim of this study was to investigate the directional relationships (direct and indirect pathways through which hand skills influence MA in children with CP. A total of 136 children with CP (mean age: 10 years; range: 6–16 years; 35 quadriplegics, 24 diplegics, 77 hemiplegics were assessed. Six hand skills were measured on both hands: touch-pressure detection (Semmes-Weinstein aesthesiometer, stereognosis (Manual Form Perception Test, proprioception (passive mobilization of the metacarpophalangeal joints, grip strength (Jamar dynamometer, gross manual dexterity (Box and Block Test, and fine finger dexterity (Purdue Pegboard Test. MA was measured with the ABILHAND-Kids questionnaire. Correlation coefficients were used to determine the linear associations between observed variables. A path analysis of structural equation modeling was applied to test different models of causal relationships among the observed variables. Purely sensory impairments did seem not to play a significant role in the capacity to perform manual activities. According to path analysis, gross manual dexterity in both hands and stereognosis in the dominant hand were directly related to MA, whereas grip strength was indirectly related to MA through its relationship with gross manual dexterity. However, one-third of the variance in MA measures could not be explained by hand skills. It can be concluded that MA is not simply the integration of hand skills in daily activities and should be treated per se, supporting activity-based interventions.

  15. Pregnancy outcome following spontaneous abortions

    Directory of Open Access Journals (Sweden)

    Swati Agrawal

    2015-12-01

    Conclusions: Previous history of spontaneous abortion is associated with adverse pregnancy outcome. There is increased risk of abortion, preterm delivery, need for caesarean sections and fetal loss in cases of previous spontaneous abortions. These complications and fetal loss can be reduced by booking the patients and giving due antenatal care. [Int J Reprod Contracept Obstet Gynecol 2015; 4(6.000: 1891-1893

  16. Preparation of a continuative brochure as supplement to the evaluation hand-out for the assessment of study results; Erstellung einer weiterfuehrenden Broschuere als Ergaenzung zur Handreichung der Beurteilung von Studienergebnissen

    Energy Technology Data Exchange (ETDEWEB)

    Wilhelmy, S.; Gollnick, F.; Driessen, S.; Schmidt, M.; Gross, D.

    2015-08-15

    In 2013 the Federal Office for Radiation Protection gave the responsibility to the Department of History, Philosophy and Ethics of Medicine (Institut GTE Med) in Aachen for the project ''Creating a practical hand-out for the assessment of study results for employees of local governments'' (FM 8855). The manual serves as a practical way for the qualitative evaluation of texts for persons who deal with the topics Mobile Communication and Health (for example communities or government agencies) in their profession. The main objective of the manual is to aid users in performing a faster and more efficient evaluation of texts by answering the containing questions. This approach is purely functional and precludes the placement of deeper information. At this point the new project FM 8862 started by ''Creating a continuative brochure in addition to the hand-out for the assessment of study results''. It continued the previous project FM 8855 to further develop the information which was up to this point purely functional. The brochure presents the issues in an overall context and provides valuable background knowledge. As a result, possible users get in a more casual and clear manner a deeper understanding of the evaluating of texts. It should be possible for a user to better evaluate texts and by obtaining arguments, thus being better prepared to engage with interested Laymen in an objective discussion. The brochure was submitted together with the existing manual for a practical test, which was attended by 21 target group-specific subjects. The study tested in detail the intelligibility, clarity, applicability, and the support of the brochure. The feedback of the test participants were then used as basis for the final optimization of the brochure. Project participants belong to the Department of History, Philosophy and Ethics of Medicine and the Research Center for Bioelectromagnetic Interaction of the RWTH Aachen University (femu).

  17. Emergency Surgery for Spontaneous Hemopneumothorax

    International Nuclear Information System (INIS)

    Emergency management of spontaneous hemopneumothorax patients was retrospectively analysed in this study. From November 2009 to August 2012, 221 patients with spontaneous pneumothorax were treated in the thoracic surgery clinic. Among them, 9 (4.07%) were diagnosed with spontaneous hemopneumothorax. Chest X-ray and computed tomography were the diagnostic tools. Emergency thoracotomy was performed for 7 of 9 patients because of massive hemothorax and continuous bleeding from the chest tube. Massive hematoma was documented in 2 of 7 patients at tomography. Bridging veins and torn pleural adhesion between parietal and visceral pleura were the source of bleeding determined at thoracotomy. Hematoma evacuation, resection of bullae, ligation of pleural adhesions and apical pleurectomy were performed. Spontaneous hemopneumothorax is an emergency due to massive hemorrhage and hematoma formation. Early surgical treatment is recommended for patients with spontaneous hemopneumothorax. (author)

  18. Robertsonian translocation between chromosomes (no.21/14) in relation to the history of spontaneous abortion in a family

    OpenAIRE

    Mohammad Hasanzadeh-NazarAbadi; Fatemeh Baghbani; Iman Namazi; Salmeh Mirzaee

    2014-01-01

    Background: Approximately 205 million pregnancies occur each year in the worldwide. On the other hand, Spontaneous abortion has been reported in 15-20% of all diagnosed pregnancies. The most common cause of spontaneous abortion is chromosomal abnormalities of the embryo. Robertsonian translocation carriers specially 21-14 are the most common balanced rearrangement among the carrier couples with the history of spontaneous abortion. In order to search for balanced chromosomal rearrangement and ...

  19. Spontaneous breaking of supersymmetry

    Energy Technology Data Exchange (ETDEWEB)

    Zumino, B.

    1981-12-01

    There has been recently a revival of interest in supersymmetric gauge theories, stimulated by the hope that supersymmetry might help in clarifying some of the questions which remain unanswered in the so called Grand Unified Theories and in particular the gauge hierarchy problem. In a Grand Unified Theory one has two widely different mass scales: the unification mass M approx. = 10/sup 15/GeV at which the unification group (e.g. SU(5)) breaks down to SU(3) x SU(2) x U(1) and the mass ..mu.. approx. = 100 GeV at which SU(2) x U(1) is broken down to the U(1) of electromagnetism. There is at present no theoretical understanding of the extreme smallness of the ratio ..mu../M of these two numbers. This is the gauge hierarchy problem. This lecture attempts to review the various mechanisms for spontaneous supersymmetry breaking in gauge theories. Most of the discussions are concerned with the tree approximation, but what is presently known about radiative correction is also reviewed.

  20. Spontaneous bacterial peritonitis

    Institute of Scientific and Technical Information of China (English)

    Anastasios Koulaouzidis; Shivaram Bhat; Athar A Saeed

    2009-01-01

    Since its initial description in 1964, research has transformed spontaneous bacterial peritonitis (SBP) from a feared disease (with reported mortality of 90%) to a treatable complication of decompensated cirrhosis,albeit with steady prevalence and a high recurrence rate. Bacterial translocation, the key mechanism in the pathogenesis of SBP, is only possible because of the concurrent failure of defensive mechanisms in cirrhosis.Variants of SBP should be treated. Leucocyte esterase reagent strips have managed to shorten the 'tap-toshot' time, while future studies should look into their combined use with ascitic fluid pH. Third generation cephalosporins are the antibiotic of choice because they have a number of advantages. Renal dysfunction has been shown to be an independent predictor of mortality in patients with SBP. Albumin is felt to reduce the risk of renal impairment by improving effective intravascular volume, and by helping to bind proinflammatory molecules. Following a single episode of SBP, patients should have long-term antibiotic prophylaxis and be considered for liver transplantation.

  1. [Lazarus phenomenon: spontaneous resuscitation].

    Science.gov (United States)

    Casielles García, J L; González Latorre, M V; Fernández Amigo, N; Guerra Vélz, A; Cotta Galán, M; Bravo Capaz, E; de las Mulas Béjar, M

    2004-01-01

    A 94-year-old woman undergoing surgery for simple repair of a duodenal perforation experienced a sudden massive hemorrhage (1500 mL) when the duodenum was separated from adjacent structures. Hemodynamic stability was re-established when fluids were replaced. After the abdominal wall was closed, increased amplitude of the QRS wave was observed and heart rate slowed until there was no pulse. Electromechanical dissociation (EMD) was diagnosed and cardiopulmonary resuscitation was started. When EMD persisted after 40 minutes, resuscitative measures were stopped and the ventilator was disconnected, though orotracheal intubation and arterial and electrocardiographic monitoring were maintained. After 2 or 3 minutes, heart rhythm restarted spontaneously and arterial pressure waves reappeared on the monitor. The patient progressed well for 72 hours, after which she developed septic shock and multiorgan failure, dying 18 days later. The Lazarus phenomenon may be more common than the medical literature would indicate, possibly because a large gap in our understanding of the pathophysiology of the phenomenon underlies anecdotes about "miracles". As we wait for adequate international consensus on a protocol for monitoring the withdrawal of resuscitative measures, we should act prudently before definitively certifying death. The case we report occurred during a surgical intervention in which the patient had received general anesthesia. We believe that the causes that might explain the Lazarus phenomenon are quite different in that context than they would be in a nonsurgical setting, such that it would be useful to create a national database to keep a record of such intraoperative events. PMID:15495638

  2. Spontaneous subgaleal aerocele.

    Science.gov (United States)

    Ibe, M O N; Onu, D O; Igwe, N N

    2014-01-01

    Apart from reporting about a case of spontaneous subgaleal aerocele this paper looks at the possible causes and management also. A 35-year-old Igbo-Nigerian female, about 4 weeks post-natal, with a 10-month old steadily and gradually enlarging mass around the back of her head, including both temporal regions was referred to us. Plain skull radiographs showed air in this mass. Needle puncture produced air leading to immediate and complete flattening of the lesion. A few hours after this procedure while still in the hospital premises, she had generalized convulsions, for which she was hospitalized and treated. With no further attacks, her request for discharge the following day was granted. At the next visit, 7 days later, there was a re-accumulation, which was treated the same way as previously and with the same result. She has not reported back since then, though she was advised to visit us again in 7 day-time. This lesion should be considered when masses on the head are presented. Our health institutions should have adequate investigative facilities. PMID:24553041

  3. High levels of fetal DNA are associated with increased risk of spontaneous preterm delivery

    DEFF Research Database (Denmark)

    Jakobsen, Tanja R; Clausen, Frederik B; Rode, Line;

    2012-01-01

    To assess whether spontaneous preterm delivery can be predicted from the amount of cell free fetal DNA (cffDNA) as determined by routine fetal RHD genotyping at 25 weeks' gestation.......To assess whether spontaneous preterm delivery can be predicted from the amount of cell free fetal DNA (cffDNA) as determined by routine fetal RHD genotyping at 25 weeks' gestation....

  4. Hand dermatitis: an allergist's nightmare.

    Science.gov (United States)

    Wold, Lindsey; Chen, Jennifer K; Lampel, Heather P

    2014-11-01

    Hand dermatitis is a common skin complaint. We use our hands to explore our environment; subsequently, our hands are in frequent contact with potential allergens and irritants. Patients with hand dermatitis may present to their allergist with this complaint. Approaching the diagnosis and treatment of hand dermatitis can be challenging, as both internal and external factors may contribute to the overall condition. Furthermore, the differential diagnosis of hand dermatitis is broad and the cause often multifactorial. Obtaining a thorough history and performing a focused examination may help the clinician differentiate between multiple causes of hand dermatitis. Numerous treatment options exist for hand dermatitis, and new potential treatments are in development as well. We aim to provide the allergist with a streamlined toolkit for help in the diagnosis and management of hand dermatitis. PMID:25228264

  5. SPONTANEOUS POTENTIAL INVESTIGATIONS IN SEMENIC MOUNTAINS

    Directory of Open Access Journals (Sweden)

    P. URDEA

    2014-11-01

    Full Text Available Spontaneous Potential Investigations in Semenic Mountains. The use of geophysical methods such as that of Spontaneous Potential (SP to investigate areas where the geomorphological processes occur, has the role to identify less visible processes as for example subcutaneous erosion or piping, subsoil water drainage and finding specific spatial differences of these processes. Comparative study of these sites allows correlation between geomorphological factors, soil and climate, but also to observe the evolution of subsurface erosion or underground water infiltration over time. During this investigation a series of mesh grids have been made in areas with different characteristics (lithology, pedology, slope, exposition, etc. at different time periods in order to spot and analyse the change in data in the chosen sites, various conditions given. Values expressed in millivolts (mV obtained by the Spontaneous Potential method have been put into an algorithm for interpolation looking to yield a pattern of values of what is happening in the soil during that period of time. Thus, in the autumn, the investigation site at the nivation niche Baia Vulturilor, returned values of between -22.6 mV and 65.6 mV, while in spring in the same site, values were within the range of -14.4 mV / 30.1 mV. On the other hand, on the site of the cryopediment under the Semenic peak, in the spring, return values ranged from -40.4 mV and -1.1 mV. A particular case is that of the glacis near Piatra Goznei peak; in this area anthropogenic electricity influences on soil can be found. Based on some models a trend of water movement in the soil could be established, this depending heavily on the amount of precipitation infiltration, local lithology, depth of soil and their structure, and evapotranspiration process. Water movement in the soil may be a correlation with sediment movement in soil horizons and instability manifested on the slopes.

  6. Computerized bone analysis of hand radiographs

    Science.gov (United States)

    Pietka, Ewa; McNitt-Gray, Michael F.; Hall, Theodore R.; Huang, H. K.

    1992-06-01

    A computerized approach to the problem of skeletal maturity is presented. The analysis of a computed radiography (CR) hand image results in obtaining features, that can be used to assess the skeletal age of pediatric patients. It is performed on a standard left hand radiograph. First, epiphyseal regions of interest (EROI) are located. Then, within each EROI the distals, middles, and proximals are separated. This serves as a basis to locate the extremities of epiphyses and metaphyses. Next, the diameters of epiphyses and metaphyses are calculated. Finally, an epiphyseal diameter and metaphyseal diameter ratio is calculated. A pilot study indicated that these features are sensitive to the changes of the anatomical structure of a growing hand and can be used in the skeletal age assessment.

  7. Process of spontaneous combustion of solid fuels

    Energy Technology Data Exchange (ETDEWEB)

    Postrzednik, S.; Bialecki, R.; Nowak, A. (Politechnika Slaska, Gliwice (Poland))

    1988-01-01

    Reviews literature on coal spontaneous combustion and oxidation. The following aspects are discussed: low-temperature oxidation, medium and high-temperature oxidation, theories of spontaneous coal combustion (bacteria theory, phenol theory, water-coal system theory, water adsorption theory), factors that influence spontaneous combustion (coal rank, petrology, porosity, moisture content, storage method, storage temperature, air circulation, macrostructure and geometry of the system for storage of coal), effects of mineral content on coal hazards of spontaneous combustion, physicochemical phenomena that influence spontaneous combustion, laboratory investigations into spontaneous combustion, experimental methods used in laboratory investigations, forecasting energy effects of spontaneous combustion, mathematical models of coal spontaneous combustion. 94 refs.

  8. Changes in spontaneous baroreflex sensitivity during sleep in humans.

    Science.gov (United States)

    Shamsuzzaman, A S; Sugiyama, Y; Okada, H; Takeuchi, S; Iwase, S; Matsukawa, T; Mano, T

    1994-01-01

    To evaluate changes in the spontaneous baroreflex sensitivity for heart rate and for muscle sympathetic nerve activity (MSNA) during sleep, we simultaneously recorded MSNA from the tibial nerve and monitored ECG, EEG, EOG, EMG and blood pressure during the resting awake stage and sleep. Blood pressure, ECG and MSNA waves were changed to equidistant time series data of each second by cubic spline interpolation. Cross correlations between the MSNA and diastolic blood pressure and between the instantaneous heart rate and systolic blood pressure were analyzed. Spontaneous baroreflex sensitivities for MSNA and for heart rate were assessed from the slope of the regression lines for each. During sleep, the spontaneous baroreflex sensitivity for MSNA gradually decreased as the non-REM sleep stages advanced. Spontaneous baroreflex sensitivity for heart rate did not show any apparent changes. These results suggest that baroreflex modulations for heart rate and for MSNA differ during sleep. PMID:12703525

  9. Spontaneous baroreflex sensitivity

    DEFF Research Database (Denmark)

    Barthel, Petra; Bauer, Axel; Müller, Alexander;

    2012-01-01

    Low baroreflex sensitivity (BRS) indicates poor prognosis after acute myocardial infarction. Noninvasive BRS assessment is complicated by nonstationarities and noise in electrocardiogram and pressure signals. Phase-rectified signal averaging is a novel signal processing technology overcoming these...

  10. Idiopathic spontaneous pneumomediastinum: radiologic and clinical features

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Mi Young; Kim, Su Young; Kim, Yong Hoon; Hwang, Yoon Joon; Seo, Jung Wook; Han, Yoon Hee; Cha, Soon Joo; Hur, Gham [College of Medicine, Inje Univ., Goyang (Korea, Republic of)

    2004-07-01

    To evaluate the clinical presentations, radiological characteristics, and natural history of healthy adolescents presenting with idiopathic spontaneous pneumomediastinum. We retrospectively reviewed the simple radiographs of 14 consecutive patients (11 males) with spontaneous pneumomediastinum, who were examined over a period of 8 years, and analyzed their clinical history, radiographic findings including distribution, combined subcutaneous emphysema, mediastinal widening, pneumothorax, pleural effusion, and resolving period on follow up chest radiographs. We also obtained CT images of 7 patients for the assessment of additional information. The most common complaint at the time of presentation was chest pain and chest discomfort (8/14), followed by neck discomfort (6/14). The chest radiograph was of diagnostic value in alI cases. The main distribution of the pneumomediastinum was cervical (14/14), upper lung (13/14) and lower lung (6/14). Combined subcutaneous emphysema was observed in 6 patients. However, there were no cases of mediastinal widening, pneumothorax or pleural effusion. Complete resolution of the pneumomediastinum on the radiograph was observed after 10 days (mean 5.6), following purely conservative treatment. There was no additional information on the CT images, as compared with that on the radiographs. Idiopathic spontaneous pneumomediastinum is a benign entity that usually goes undiagnosed, but which responds very weIl to conservative treatment.

  11. Idiopathic spontaneous pneumomediastinum: radiologic and clinical features

    International Nuclear Information System (INIS)

    To evaluate the clinical presentations, radiological characteristics, and natural history of healthy adolescents presenting with idiopathic spontaneous pneumomediastinum. We retrospectively reviewed the simple radiographs of 14 consecutive patients (11 males) with spontaneous pneumomediastinum, who were examined over a period of 8 years, and analyzed their clinical history, radiographic findings including distribution, combined subcutaneous emphysema, mediastinal widening, pneumothorax, pleural effusion, and resolving period on follow up chest radiographs. We also obtained CT images of 7 patients for the assessment of additional information. The most common complaint at the time of presentation was chest pain and chest discomfort (8/14), followed by neck discomfort (6/14). The chest radiograph was of diagnostic value in alI cases. The main distribution of the pneumomediastinum was cervical (14/14), upper lung (13/14) and lower lung (6/14). Combined subcutaneous emphysema was observed in 6 patients. However, there were no cases of mediastinal widening, pneumothorax or pleural effusion. Complete resolution of the pneumomediastinum on the radiograph was observed after 10 days (mean 5.6), following purely conservative treatment. There was no additional information on the CT images, as compared with that on the radiographs. Idiopathic spontaneous pneumomediastinum is a benign entity that usually goes undiagnosed, but which responds very weIl to conservative treatment

  12. Spontaneous combustion in coal massif

    International Nuclear Information System (INIS)

    The spontaneous combustion of coal seams is one of the main causes of economic and human losses associated to the operation of the mines at the Amaga basin. Several factors intervening in the spontaneous combustion of coal are analysed in this article, namely: The physico-chemical processes. The specific circumstances of the exploitations. The generation and composition of fire gasses. The explosive power of the gases. The susceptibility of coal to spontaneous combustion is determined by thermo gravimetric and petrographic analysis. The results of this study show that in the Amaga basin, the mining and geological parameters have a more influential function in the spontaneous combustion process than the intrinsic properties of coal

  13. Hand grip strength

    DEFF Research Database (Denmark)

    Frederiksen, Henrik; Gaist, David; Petersen, Hans Christian;

    2002-01-01

    in life is a major problem in terms of prevalence, morbidity, functional limitations, and quality of life. It is therefore of interest to find a phenotype reflecting physical functioning which has a relatively high heritability and which can be measured in large samples. Hand grip strength is known......Physical functioning late in life has been shown to be affected by genetic factors. Only a few genetic variants have been suggested to be associated with physical functioning, and this only in selected populations (e.g., young healthy males and elite athletes). Declining physical functioning late......-55%). A powerful design to detect genes associated with a phenotype is obtained using the extreme discordant and concordant sib pairs, of whom 28 and 77 dizygotic twin pairs, respectively, were found in this study. Hence grip strength is a suitable phenotype for identifying genetic variants of importance...

  14. Study on perineum assessment and perineum laceration in single hand perineum protection delivering method%单手保护会阴接产法会阴评估及侧切裂伤的研究

    Institute of Scientific and Technical Information of China (English)

    罗庆平; 桑晓梅; 罗蓉戎; 徐云芳; 周蕾; 杜雨然; 朱莉; 叶科容; 郭绍俊

    2015-01-01

    Objective To compare the perineum condition assessment ,perineum episiotomy rate and laceration degree between the single hand perineum protection delivering method and traditional perineum protection delivering method in order to improve the midwifery skills and assessment ability ,and reduce the perineum trauma .Methods The prospectively randomized clinical study was adopted with the parturients with full‐term ,head position ,without pregnancy comorbidities ,complications and fetal distress ,and vaginal delivery as the research subjects .Among them , 293 cases were in the research group and 294 cases in the control group .The research group adopted the single hand perineum protection delivering method ,while the control group adopted the traditional perineum protection delivering method .The perineum condition ,neonatal weight ,perineum episiotomy and perineum laceration were observed in the two groups .Results The perineum lengths ,perineum elasticity and neonatal weight had no statistical differences (P>0 .05);the episiotomy rate in the research group was significantly lower than that in the control group(17 .1%vs .40 .5% ) ,the perineum laceration degree in the research group was significantly lower than that in the control group ,the differences were statistically significant(P 0 .05);no degree Ⅳ perineum laceration oc‐curred in the two groups .Conclusion The single hand perineum protection delivering method can elevated the perine‐um assessment ability compared with the traditional perineum protection delivering method ,decreases the episiotomy rate and reduces perineum laceration without increasing the occurrence rate of degree Ⅲ and Ⅳ perineum laceration .%目的:探讨单手保护会阴接产法与传统保护会阴接产法的会阴条件评估、侧切率及裂伤程度的比较,以提高助产技能及评估能力,减少会阴损伤。方法采用前瞻性临床随机对照研究,研究对象为足月、头位、无妊娠合并症

  15. American Society of Hand Therapists

    Science.gov (United States)

    ... ago Follow Us Who we are The American Society of Hand Therapists (ASHT) is a professional organization ... a chartered accredited association management company. © 2016 American Society of Hand Therapists. All Rights Reserved. Advertisement

  16. Hand-foot-mouth disease

    Science.gov (United States)

    Hand-foot-mouth disease is a common viral infection that most often begins in the throat. ... Hand-foot-mouth disease (HFMD) is most commonly caused by a virus called coxsackievirus A16. Children under age 10 ...

  17. Exposures related to hand eczema

    DEFF Research Database (Denmark)

    Ibler, K.S.; Jemec, G.B.E.; Agner, T.

    2012-01-01

    Background. Hand eczema is common in healthcare workers, owing to intensive exposure to wet work and skin irritants. Targeted interventions and vocational guidance based on documented exposures and risk factors are needed. Objectives. The aims of the study were to investigate the relationship...... between exposures (domestic and at work) and prevalence and severity of hand eczema. Methods. Self-administered questionnaires were sent to 3181 healthcare workers in Denmark. Results. Two thousand two hundred and sixty-nine (71%) workers responded to the questionnaire. Frequent hand washing was....... Conclusions. Although healthcare workers are recommended to use disinfectants when the hands are not visibly dirty, hand washing is still significantly related to hand eczema. Frequent hand washing may be a question of behavioural habits, and a focus for future guidance should be on changing hand washing...

  18. Replantation (Finger, Hand, or Arm)

    Science.gov (United States)

    ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ... Symptom Picker Hand and Arm Conditions Carpal Tunnel Ganglion Cysts Trigger Finger Arthritis Base of the Thumb See ...

  19. Arthritis of the hand - Rheumatoid

    Science.gov (United States)

    ... Hand Therapist? Media Find a Hand Surgeon Rheumatoid Arthritis Email to a friend * required fields From * To * ... causes pressure on the nearby nerve. How Rheumatoid Arthritis is Diagnosed The diagnosis of rheumatoid arthritis is ...

  20. Hand-foot-mouth disease

    Science.gov (United States)

    ... medlineplus.gov/ency/article/000965.htm Hand-foot-mouth disease To use the sharing features on this page, please enable JavaScript. Hand-foot-mouth disease is a common viral infection that most ...

  1. Spontaneous ischaemic stroke in dogs

    DEFF Research Database (Denmark)

    Gredal, Hanne Birgit; Skerritt, G. C.; Gideon, P.;

    2013-01-01

    Translation of experimental stroke research into the clinical setting is often unsuccessful. Novel approaches are therefore desirable. As humans, pet dogs suffer from spontaneous ischaemic stroke and may hence offer new ways of studying genuine stroke injury mechanisms.......Translation of experimental stroke research into the clinical setting is often unsuccessful. Novel approaches are therefore desirable. As humans, pet dogs suffer from spontaneous ischaemic stroke and may hence offer new ways of studying genuine stroke injury mechanisms....

  2. Hand disease in scleroderma: a clinical correlate for chronic hand transplant rejection

    OpenAIRE

    Amin, K; Sivakumar, B.; Clarke, A.; A Puri; Denton, C; Butler, P. E.

    2013-01-01

    Abstract Chronic rejection remains a potential long-term consequence of hand composite tissue allotransplantation (CTA). Scleroderma has already been proposed as a model for chronic facial allograft rejection based on potential parallels of observed progression of disease and pathophysiology course. This study proposes a similar model for how chronic rejection may manifest itself in the context of hand CTA through the functional and psychological assessment of patients with scleroderma, shoul...

  3. The Importance of Hand Washing

    Institute of Scientific and Technical Information of China (English)

    杨昌寿

    2004-01-01

    Medical experts say the most effective way to prevent the spread of diseases is for people to wash their hands with soap and water. The Word Bank and the United Nations carried out a study to urge hand washing around the world. They say programmes to increase hand washing with

  4. Right-handed Neutrinos in $\

    OpenAIRE

    Sobkow, Wieslaw

    2000-01-01

    In this paper a scenario admitting the participation of the exotic right-handed scalar $S_{R}$ coupling in addition to the standard left-handed $(V, A)_{L}$ couplings in the low energy neutrino-electron scattering is considered. The main goal is to show how the presence of the right-handed neutrinos in the $(\

  5. Unimanual SNARC Effect: Hand Matters

    Directory of Open Access Journals (Sweden)

    Marianna eRiello

    2011-12-01

    Full Text Available A structural representation of the hand embedding information about the identity and relative position of fingers is necessary to counting routines. It may also support associations between numbers and allocentric spatial codes that predictably interact with other known numerical spatial representations, such as the mental number line. In this study, 48 Western participants whose typical counting routine proceeded from thumb-to-little on both hands performed magnitude and parity binary judgments. Response keys were pressed either with the right index and middle fingers or with the left index and middle fingers in separate blocks. 24 participants responded with either hands in prone posture (i.e. palm down and 24 participants responded with either hands in supine (i.e. palm up posture. When hands were in prone posture, the counting direction of the left hand conflicted with the direction of the left-right mental number line, whereas the counting direction of the right hand was consistent with it. When hands were in supine posture, the opposite was true. If systematic associations existed between relative number magnitude and an allocentric spatial representation of the finger series within each hand, as predicted on the basis of counting habits, interactions would be expected between hand posture and a unimanual version of the Spatial-Numerical Association of Response Codes (SNARC effect. Data revealed that with hands in prone posture a unimanual SNARC effect was present for the right hand, and with hands in supine posture a unimanual SNARC effect was present for the left hand. We propose that a posture-invariant body structural representation of the finger series provides a relevant frame of reference, a within-hand directional vector, that is associated to simple number processing. Such frame of reference can significantly interact with stimulus-response correspondence effects that have been attributed to the mapping of numbers on a mental

  6. An Investigator-initiated Study to Assess the Safety and Efficacy of Imiquimod 3.75% Cream When Used After Cryotherapy in the Treatment of Hypertrophic Actinic Keratoses on Dorsal Hands and Forearms

    OpenAIRE

    Goldenberg, Gary; Linkner, Rita V.; Singer, Giselle; Frankel, Amylynne

    2013-01-01

    Objective: To evaluate the efficacy of combination cryotherapy and imiquimod 3.75% cream versus cryotherapy alone in the treatment of hypertrophic actinic keratosis on the dorsal hand and forearm. Methods: Twenty subjects with at least three hypertrophic actinic keratoses on each dorsal hand or forearm underwent cryotherapy treatment to hypertrophic actinic keratoses. Following cryotherapy, subjects were randomized to have either their right or left dorsal hand or forearm treated with imiquim...

  7. Computer control by hand gestures

    Science.gov (United States)

    Jemel, Intidhar; Ejbali, Ridha; Zaied, Mourad

    2015-12-01

    This work fits into the context of the interpretation of automatic gestures based on computer vision. The aim of our work is to transform a conventional screen in a surface that allows the user to use his hands as pointing devices. These can be summarized in three main steps. Hand detection in a video, monitoring detected hands and conversion paths made by the hands to computer commands. To realize this application, it is necessary to detect the hand to follow. A classification phase is essential, at the control part. For this reason, we resorted to the use of a neuro-fuzzy classifier for classification and a pattern matching method for detection.

  8. Your Left-Handed Brain

    OpenAIRE

    Roel M. Willems; Francks, Clyde

    2014-01-01

    While most people prefer to use their right hand to brush their teeth, throw a ball, or hold a tennis racket, left-handers prefer to use their left hand. This is the case for around 10% of all people. There was a time (not so long ago) when left-handers were stigmatized (see Glossary) in Western (and other) communities: it was considered a bad sign if you were left-handed, and left-handed children were often forced to write with their right hand. This is nonsensical: there is nothing wrong wi...

  9. Hand washing promotion for preventing diarrhoea

    Science.gov (United States)

    Ejemot-Nwadiaro, Regina I; Ehiri, John E; Arikpo, Dachi; Meremikwu, Martin M; Critchley, Julia A

    2015-01-01

    Background Diarrhoea accounts for 1.8 million deaths in children in low- and middle-income countries (LMICs). One of the identified strategies to prevent diarrhoea is hand washing. Objectives To assess the effects of hand washing promotion interventions on diarrhoeal episodes in children and adults. Search methods We searched the Cochrane Infectious Diseases Group Specialized Register (27 May 2015); CENTRAL (published in the Cochrane Library 2015, Issue 5); MEDLINE (1966 to 27 May 2015); EMBASE (1974 to 27 May 2015); LILACS (1982 to 27 May 2015); PsycINFO (1967 to 27 May 2015); Science Citation Index and Social Science Citation Index (1981 to 27 May 2015); ERIC (1966 to 27 May 2015); SPECTR (2000 to 27 May 2015); Bibliomap (1990 to 27 May 2015); RoRe, The Grey Literature (2002 to 27 May 2015); World Health Organization (WHO) International Clinical Trial Registry Platform (ICTRP), metaRegister of Controlled Trials (mRCT), and reference lists of articles up to 27 May 2015. We also contacted researchers and organizations in the field. Selection criteria Individually randomized controlled trials (RCTs) and cluster-RCTs that compared the effects of hand washing interventions on diarrhoea episodes in children and adults with no intervention. Data collection and analysis Three review authors independently assessed trial eligibility, extracted data, and assessed risk of bias. We stratified the analyses for child day-care centres or schools, community, and hospital-based settings. Where appropriate, incidence rate ratios (IRR) were pooled using the generic inverse variance method and random-effects model with 95% confidence intervals (CIs). We used the GRADE approach to assess the quality of evidence. Main results We included 22 RCTs: 12 trials from child day-care centres or schools in mainly high-income countries (54,006 participants), nine community-based trials in LMICs (15,303 participants), and one hospital-based trial among people with acquired immune deficiency

  10. Hand Dose in Nuclear Medicine Staff Members

    International Nuclear Information System (INIS)

    Measurement of the hand dose during preparation and injection of radiopharmaceuticals is useful in the assessment of the extremity doses received by nuclear medicine personnel. Hand radiation doses to the occupational workers that handling 99mTc-labeled compounds, 131I for diagnostic in nuclear medicine were measured by thermoluminescence dosimetry. A convenient method is to use a TLD ring dosimeter for measuring doses of the diagnostic units of different nuclear medicine facilities . Their doses were reported in millisieverts that accumulated in 4 weeks. The radiation doses to the hands of nuclear medicine staff at the hospitals under study were measured. The maximum expected annual dose to the extremities appeared to be less than the annual limit (500 mSv/y) because all of these workers are on rotation and do not constantly handle radioactivity throughout the year

  11. Longitudinal observation of pediatric hand and wrist ganglia.

    Science.gov (United States)

    Wang, A A; Hutchinson, D T

    2001-07-01

    The purpose of this study was to examine the behavior of ganglia of the hand and wrist in young children treated without surgery. Fourteen consecutive children, less than 10 years of age, who presented with cysts of the hand and wrist were followed up by a single surgeon. The average age of the patient at the time of diagnosis was 38 months (range, 2 months to 9 years 3 months). The masses included 7 retinacular cysts, 5 volar wrist ganglia, and 2 dorsal wrist ganglia. These cysts had been present for an average of 3.3 months (range, 1-12 months) before medical advice was sought. None of the cysts were painful. Follow-up averaged 33 months (range, 9-112 months), with 79% of all cysts spontaneously resolving, the majority within a year. We believe that a child presenting with a benign hand lesion characteristic of a ganglion cyst should initially be treated by observation. PMID:11466631

  12. Dynamic Hand Gesture Recognition Using the Skeleton of the Hand

    OpenAIRE

    Vasile Buzuloiu; Patrick Lambert; Didier Coquin; Bogdan Ionescu

    2005-01-01

    This paper discusses the use of the computer vision in the interpretation of human gestures. Hand gestures would be an intuitive and ideal way of exchanging information with other people in a virtual space, guiding some robots to perform certain tasks in a hostile environment, or interacting with computers. Hand gestures can be divided into two main categories: static gestures and dynamic gestures. In this paper, a novel dynamic hand gesture recognition technique is proposed. It is based on ...

  13. HENRY'S "HAND OF GOD"

    Directory of Open Access Journals (Sweden)

    Željko Kaluđerović

    2014-04-01

    Full Text Available In this paper the author discusses the views and statements of the French football player Thierry Henry he gave after his illegal play during the playoff match between France and the Republic of Ireland to claim one of the final spots in the World Cup 2010 in South Africa. First, by controlling the ball with his hand before passing it on for the goal Henry has shown disregard for the constitutive rules of football. Then, by stating that he is "not a referee" he demonstrated that for some players rules are not inherent to football and that they can be relativized, given that for them winning is the goal of the highest ontological status. Furthermore, he has rejected the rules of sportsmanship, thus expressing his opinion that the opponents are just obstacles which have to be removed in order to achieve your goals. Henry's action has disrupted major moral values, such as justice, honesty, responsibility and beneficence. The rules of fair play have totally been ignored both in Henry's action and in the Football Association of France's unwillingness to comment on whether a replay should take place. They have ignored one of the basic principles stated in the "Declaration of the International Fair Play Committee", according to which, fair play is much more than playing to the rules of the game; it's about the attitude of the sportsperson. It's about respecting your opponent and preserving his or her physical and psychological integrity. Finally, the author believes that the rules, moral values and fair play in football are required for this game to become actually possible to play.

  14. Performing Allen's test in immobile hand: The Esmarch bandage method

    Directory of Open Access Journals (Sweden)

    Nebil Yesiloglu

    2015-12-01

    Full Text Available In this study, an alternative method of assessing hand vascular flow using a modification of Allen's test is presented. This technique may be helpful for patients who have immobile hands due to severe trauma, patients scheduled for free tissue transfer reconstruction, patients under general anesthesia in intensive care units that require serial arterial blood gas analyses, and emergency coronary by-pass candidates who decided to receive radial arterial grafts. [Hand Microsurg 2015; 4(3.000: 83-85

  15. [Three cases of spontaneous pneumomediastinum].

    Science.gov (United States)

    Kobayashi, Kashin; Tachikawa, Soichi; Horiguchi, Takahiko; Kondo, Rieko; Shiga, Mamoru; Hirose, Masahiro; Sasaki, Yasushi; Torigoe, Hiroshi

    2006-04-01

    We encountered 3 male patients with spontaneous pneumomediastinum. The patients were a 16-year old and a 17-year old and a 24-year old. Predisposing episodes for the development of spontaneous pneumomediastinum could be identified in all 3 patients: throwing a ball during a baseball game in 1, lifting a heavy load during work in 2. However, they were healthy and suddenly developed symptoms in the absence of any underlying disease. The presenting complaint was chest pain in all 3 patients. Chest X-ray films and chest CT images revealed pneumomediastinum. A diagnosis of spontaneous pneumomediastinum was made based on chest X-ray films and chest CT images. After conservative treatment, all 3 patients recovered. PMID:16681254

  16. Children spontaneously police adults' transgressions.

    Science.gov (United States)

    Heyman, Gail D; Chiu Loke, Ivy; Lee, Kang

    2016-10-01

    Maintaining social order requires the policing of transgressions. Prior research suggests that policing emerges early in life, but little is known about children's engagement in such behavior in live interactions where there is uncertainty about the consequences. In this study, 4- to 11-year-old children (N=158) witnessed an unfamiliar adult confederate intentionally destroy another adult's property. Of interest was whether children would engage in policing behavior by protesting to the transgressor or by spontaneously reporting the transgression to a third party. Some children engaged in these behaviors spontaneously; nearly half (42%) protested the transgression, and 27% reported it without being prompted. Even when children did not spontaneously report the transgression, they almost always reported it when asked directly. The findings show that children commonly engage in policing even in the face of potentially negative consequences. PMID:27295206

  17. Spontaneous abortion: a prospective cohort study of younger women from the general population in Denmark. Validation, occurrence and risk determinants

    DEFF Research Database (Denmark)

    Buss, L; Tolstrup, J; Munk, C; Bergholt, T; Ottesen, B; Grønbaek, M; Kjær, S. K.

    2006-01-01

    abortions identified from both sources were recorded in the same year. During follow-up a total of 20.9% of pregnancies intended to be carried to term ended as a spontaneous abortion. In the risk factor analysis, we found that previous spontaneous abortion, being single, never having used oral......OBJECTIVE: To assess the occurrence of spontaneous abortion, comparing two different data sources. To estimate the rate of spontaneous abortion over a 2-year period, and examine potential predictors of the risk for incident spontaneous abortion. METHODS: We used interview data from a population......-year follow-up. Finally, risk determinants for incident spontaneous abortion were analyzed by means of logistic regression. RESULTS: A total of 654 spontaneous abortions before enrolment in the study were reported by the women compared to 531 abortions found in the register. More than 80% of the spontaneous...

  18. Spontaneous waves in muscle fibres

    International Nuclear Information System (INIS)

    Mechanical oscillations are important for many cellular processes, e.g. the beating of cilia and flagella or the sensation of sound by hair cells. These dynamic states originate from spontaneous oscillations of molecular motors. A particularly clear example of such oscillations has been observed in muscle fibers under non-physiological conditions. In that case, motor oscillations lead to contraction waves along the fiber. By a macroscopic analysis of muscle fiber dynamics we find that the spontaneous waves involve non-hydrodynamic modes. A simple microscopic model of sarcomere dynamics highlights mechanical aspects of the motor dynamics and fits with the experimental observations

  19. Shell theorem for spontaneous emission

    DEFF Research Database (Denmark)

    Kristensen, Philip Trøst; Mortensen, Jakob Egeberg; Lodahl, Peter; Stobbe, Søren

    2013-01-01

    We investigate spontaneous emission from excitons beyond the point source dipole approximation and show how the symmetry of the exciton wave function plays a crucial role. We find that for spherically symmetric wave functions, the Purcell effect is independent of the wave function size and...... therefore is given exactly by the dipole approximation theory. This surprising result is a spontaneous emission counterpart to the shell theorems of classical mechanics and electrostatics and provides insights into the physics of mesoscopic emitters as well as great simplifications in practical calculations....

  20. Flow Friction or Spontaneous Ignition?

    Science.gov (United States)

    Stoltzfus, Joel M.; Gallus, Timothy D.; Sparks, Kyle

    2012-01-01

    "Flow friction," a proposed ignition mechanism in oxygen systems, has proved elusive in attempts at experimental verification. In this paper, the literature regarding flow friction is reviewed and the experimental verification attempts are briefly discussed. Another ignition mechanism, a form of spontaneous combustion, is proposed as an explanation for at least some of the fire events that have been attributed to flow friction in the literature. In addition, the results of a failure analysis performed at NASA Johnson Space Center White Sands Test Facility are presented, and the observations indicate that spontaneous combustion was the most likely cause of the fire in this 2000 psig (14 MPa) oxygen-enriched system.

  1. Spontaneous waves in muscle fibres

    CERN Document Server

    Gunther, Stefan; 10.1088/1367-2630/9/11/417

    2009-01-01

    Mechanical oscillations are important for many cellular processes, e.g. the beating of cilia and flagella or the sensation of sound by hair cells. These dynamic states originate from spontaneous oscillations of molecular motors. A particularly clear example of such oscillations has been observed in muscle fibers under non-physiological conditions. In that case, motor oscillations lead to contraction waves along the fiber. By a macroscopic analysis of muscle fiber dynamics we find that the spontaneous waves involve non-hydrodynamic modes. A simple microscopic model of sarcomere dynamics highlights mechanical aspects of the motor dynamics and fits with the experimental observations.

  2. Hand Gestures Recognition and Tracking

    OpenAIRE

    Gurung, Deepak; Jiang, Cansen; Deray, Jeremie; Sidibé, Désiré

    2013-01-01

    In this project we develop a system that uses low cost web cameras to recognise gestures and track 2D orientations of the hand. This report is organized as such. First in section 2 we introduce various methods we undertook for hand detection. This is the most important step in hand gesture recognition. Results of various skin detection algorithms are discussed in length. This is followed by region extraction step (section 3). In this section approaches like contours and convex hull to extract...

  3. Nonlinear left-handed metamaterials

    OpenAIRE

    Ilya V. Shadrivov; Zharov, Alexander A.; Zharova, Nina A.; Yuri S. Kivshar

    2004-01-01

    We analyze nonlinear properties of microstructured materials with negative refraction, the so-called left-handed metamaterials. We demonstrate that the hysteresis-type dependence of the magnetic permeability on the field intensity allows changing the material properties from left- to right-handed and back. Using the finite-difference time-domain simulations, we study wave transmission through the slab of nonlinear left-handed material, and predict existence of temporal solitons in such materi...

  4. Neutrophilic dermatosis of dorsal hands

    Directory of Open Access Journals (Sweden)

    S Kaur

    2015-01-01

    Full Text Available Sweet′s syndrome is characterized by erythematous tender nodules and plaques over face and extremities. Fever, leukocytosis with neutrophilia, and a neutrophilic infiltrate in the dermis are characteristic features. Neutrophilic dermatosis of dorsal hands is a rare localized variant of Sweet′s syndrome occurring predominantly over dorsa of hands. Various degrees of vascular damage may be observed on histopathology of these lesions. Both Sweet′s syndrome and its dorsal hand variant have been reported in association with malignancies, inflammatory bowel diseases, and drugs. We report a patient with neutrophilic dermatoses of dorsal hands associated with erythema nodosum. He showed an excellent response to corticosteroids and dapsone.

  5. Hand in Hand: Media Literacy and Internet Safety

    Science.gov (United States)

    Gallagher, Frank

    2011-01-01

    Internet safety cannot be effectively taught without also teaching media literacy. The two go hand in hand, and both are necessary, but neither is sufficient. To understand why, it is important to first appreciate what the real risks to children are. Many of the early Internet safety programs were based on a fear of predators. Predators turned out…

  6. Stery-hand: A new device to support hand disinfection.

    Science.gov (United States)

    Szilagyi, Laszlo; Lehotsky, Akos; Nagy, Melinda; Haidegger, Tamas; Benyo, Balazs; Benyo, Zoltan

    2010-01-01

    Incomplete disinfection can cause serious complications in surgical care. The teaching of effective hand washing is crucial in modern medical training. To support the objective evaluation of hand disinfection, we developed a compact, mobile device, relying on digital imaging and image processing. The hardware consists of a metal case with matte black interior, ultra-violet lighting and a digital camera. Image segmentation and clustering are performed on a regular notebook. The hand washing procedures performed with a soap mixed with UV-reflective powder. This results the skin showing bright under UV light only on the treated (sterile) surfaces. When the surgeon inserts its hands into the box, the camera placed on the top takes an image of the hand for evaluation. The software performs the segmentation and clustering automatically. First, the hand contour is determined from the green intensity channel of the recorded RGB image. Then, the pixels of the green channel belonging to the hand are partitioned to three clusters using a quick, histogram based fuzzy c-means algorithm. The optimal threshold between the intensities of clean and dirty areas is extracted using these clusters, while the final approximated percentage of the clean area is computed using a weighting formula. The main advantage of our device is the ability to obtain objective and comparable result on the quality of hand disinfection. It may find its best use in the clinical education and training. PMID:21096021

  7. Spontaneous Object Recognition Memory in Aged Rats: Complexity versus Similarity

    Science.gov (United States)

    Gamiz, Fernando; Gallo, Milagros

    2012-01-01

    Previous work on the effect of aging on spontaneous object recognition (SOR) memory tasks in rats has yielded controversial results. Although the results at long-retention intervals are consistent, conflicting results have been reported at shorter delays. We have assessed the potential relevance of the type of object used in the performance of…

  8. Dynamic Hand Gesture Recognition Using the Skeleton of the Hand

    Directory of Open Access Journals (Sweden)

    Vasile Buzuloiu

    2005-08-01

    Full Text Available This paper discusses the use of the computer vision in the interpretation of human gestures. Hand gestures would be an intuitive and ideal way of exchanging information with other people in a virtual space, guiding some robots to perform certain tasks in a hostile environment, or interacting with computers. Hand gestures can be divided into two main categories: static gestures and dynamic gestures. In this paper, a novel dynamic hand gesture recognition technique is proposed. It is based on the 2D skeleton representation of the hand. For each gesture, the hand skeletons of each posture are superposed providing a single image which is the dynamic signature of the gesture. The recognition is performed by comparing this signature with the ones from a gesture alphabet, using Baddeley's distance as a measure of dissimilarities between model parameters.

  9. Dynamic Hand Gesture Recognition Using the Skeleton of the Hand

    Science.gov (United States)

    Ionescu, Bogdan; Coquin, Didier; Lambert, Patrick; Buzuloiu, Vasile

    2005-12-01

    This paper discusses the use of the computer vision in the interpretation of human gestures. Hand gestures would be an intuitive and ideal way of exchanging information with other people in a virtual space, guiding some robots to perform certain tasks in a hostile environment, or interacting with computers. Hand gestures can be divided into two main categories: static gestures and dynamic gestures. In this paper, a novel dynamic hand gesture recognition technique is proposed. It is based on the 2D skeleton representation of the hand. For each gesture, the hand skeletons of each posture are superposed providing a single image which is the dynamic signature of the gesture. The recognition is performed by comparing this signature with the ones from a gesture alphabet, using Baddeley's distance as a measure of dissimilarities between model parameters.

  10. The human hand as an inspiration for robot hand development

    CERN Document Server

    Santos, Veronica

    2014-01-01

    “The Human Hand as an Inspiration for Robot Hand Development” presents an edited collection of authoritative contributions in the area of robot hands. The results described in the volume are expected to lead to more robust, dependable, and inexpensive distributed systems such as those endowed with complex and advanced sensing, actuation, computation, and communication capabilities. The twenty-four chapters discuss the field of robotic grasping and manipulation viewed in light of the human hand’s capabilities and push the state-of-the-art in robot hand design and control. Topics discussed include human hand biomechanics, neural control, sensory feedback and perception, and robotic grasp and manipulation. This book will be useful for researchers from diverse areas such as robotics, biomechanics, neuroscience, and anthropologists.

  11. Silicosis with bilateral spontaneous pneumothorax

    OpenAIRE

    Fotedar Sanjay; Chaudhary Dhruva; Singhla Vikas; Narang Rajat

    2010-01-01

    Presentation with simultaneous bilateral pneumothorax is uncommon and usually in the context of secondary spontaneous pneumothorax. The association of pneumothorax and silicosis is infrequent and most cases are unilateral. Bilateral pneumothorax in silicosis is very rare with just a few reports in medical literature.

  12. Silicosis with bilateral spontaneous pneumothorax

    Directory of Open Access Journals (Sweden)

    Fotedar Sanjay

    2010-01-01

    Full Text Available Presentation with simultaneous bilateral pneumothorax is uncommon and usually in the context of secondary spontaneous pneumothorax.The association of pneumothorax and silicosis is infrequent and most cases are unilateral. Bilateral pneumothorax in silicosis is very rare with just a few reports in medical literature.

  13. Supercurrent and spontaneously broken supersymmetry

    International Nuclear Information System (INIS)

    The conserved Noether R current, supersymmetry current, and the energy-momentum tensor are constructed in the Akulov-Volkov model of spontaneously broken supersymmetry. An improved supersymmetry current and energy-momentum tensor are defined, which, along with the chiral R current, form components of the supercurrent. The supersymmetry Wess-Zumino consistency conditions for these component currents are verified

  14. Interference of spontaneously emitted photons

    CERN Document Server

    Beige, A; Pachos, J; Beige, Almut; Schoen, Christian; Pachos, Jiannis

    2002-01-01

    We discuss an experimental setup where two laser-driven atoms spontaneously emit photons and every photon causes a ``click'' at a point on a screen. By deriving the probability density for an emission into a certain direction from basic quantum mechanical principles we predict a spatial interference pattern. Similarities and differences with the classical double-slit experiment are discussed.

  15. Interference of spontaneously emitted photons

    OpenAIRE

    Beige, Almut; Schoen, Christian; Pachos, Jiannis

    2001-01-01

    We discuss an experimental setup where two laser-driven atoms spontaneously emit photons and every photon causes a ``click'' at a point on a screen. By deriving the probability density for an emission into a certain direction from basic quantum mechanical principles we predict a spatial interference pattern. Similarities and differences with the classical double-slit experiment are discussed.

  16. Spontaneously disappearing lumbar disc protrusion

    OpenAIRE

    Ushewokunze, Shungu; Abbas, Naeem; Dardis, Ronan; Killeen, Ian

    2008-01-01

    Spontaneous disappearance of a herniated lumbar disc is known to occur. This case study describes a 45-year-old patient whose symptoms of lumbar radiculopathy resolved and follow-up imaging showed complete disappearance of the disc prolapse. This phenomenon strengthens the role of conservative treatment in the management of lumbar disc protrusions.

  17. Prediction of Spontaneous Preterm Birth

    NARCIS (Netherlands)

    Dijkstra, Karolien

    2002-01-01

    Preterm birth is a leading cause of neonatal morbidity and mortality. It is a major goal in obstetrics to lower the incidence of spontaneous preterm birth (SPB) and related neonatal morbidity and mortality. One of the principal objectives is to discover early markers that would allow us to identify

  18. How spontaneous fission was discovered

    International Nuclear Information System (INIS)

    The 70th anniversary of the discovery of spontaneous fission by the young Russian physicists Konstantin A. Petrzhak and Georgii N. Flerov is commemorated. The situation in the 1940s is described and the activities of the 2 scientists, including their involvement in the development of the A-bomb, is outlined. (P.A.)

  19. Spontaneous resolution of subfoveal perfluorocarbon

    Directory of Open Access Journals (Sweden)

    Oellers P

    2015-03-01

    Full Text Available Patrick Oellers,1 Leon D Charkoudian,2 Paul Hahn11Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA; 2Cape Fear Retinal Associates, Wilmington, NC, USA Abstract: Perfluorocarbon liquids (PFCL have transformed the surgical approach to complex retinal detachments, but their use can be complicated by subretinal retention. Migration of peripherally located subretinal PFCL towards the fovea is well established, but spontaneous resolution of subfoveal PFCL without surgical evacuation or displacement has rarely been described. We present a case of a large single retained subfoveal PFCL droplet following vitrectomy with membrane peeling, inferior relaxing retinectomy, and silicone oil tamponade that demonstrated spontaneous resolution 3 weeks postoperatively, with subsequent anatomic and visual improvement. No residual subretinal PFCL was noted, and we hypothesize that the PFCL droplet spontaneously extruded through a transient hole created in the thinned retina overlying the droplet, which subsequently closed spontaneously. Further understanding of the mechanisms of PFCL migration and resolution may facilitate improved treatments for this complication.Keywords: perfluorocarbon, subretinal, retained, resolution

  20. Spontaneous mutation frequencies in barley

    International Nuclear Information System (INIS)

    Full text: Estimation of the spontaneous mutation frequency requires screening of very large populations and has therefore rarely been carried out in higher plants. A study on inter-allelic recombination in the ml-o locus allowed to collect some data on spontaneous chlorophyll mutants. 1866 barley plants were progeny tested in the greenhouse. 25 plants segregated for newly arisen, spontaneous chlorophyll mutant genes. Among a total of 470129 seedlings screened there were 79 mutants (1.7±0.6x10-4). If these data are pooled with others from similar materials the resulting estimate is 1.6x10-4 in about 1,43 million seedlings. The estimate of the chlorophyll mutation rate per generation is close to 6.3x10-4 per diploid genome. Assuming that the number of loci that can give rise to chlorophyll mutants is in the order of 500, the spontaneous mutation rate would be in the order of 6x10-7 per locus and haploid genome per generation. (author)

  1. The Work of the Hand

    Science.gov (United States)

    Ludick, Pat

    2013-01-01

    Recognizing Maria and Mario Montessori's reverence for the hand, Pat Ludick takes the reader into the wonder of the human body, mind, and spirit and across the planes of education, into the making of a whole personality and grounded intelligence that is ready for the adult world. Putting the hand front and center, she lyrically evolves an overview…

  2. Please wash your hands often

    OpenAIRE

    Moraru, C.

    2007-01-01

    This poster advises washing hands "before and after using the toilet, handling food, touching animals, eating, drinking, or smoking." It advocates "always use clean water / never wash your hands in used wash water!" The purpose is to protect self and others from diseases. LTRA-2 (An Agricultural Markets Model for Biodiversity Conservation)

  3. Hand controller commonality evaluation process

    Science.gov (United States)

    Stuart, Mark A.; Bierschwale, John M.; Wilmington, Robert P.; Adam, Susan C.; Diaz, Manuel F.; Jensen, Dean G.

    1993-01-01

    Hand controller selection for NASA's Orbiter and Space Station Freedom is an important area of human-telerobot interface design and evaluation. These input devices will control remotely operated systems that include large crane-like manipulators (e.g., Remote Manipulator System or RMS), smaller, more dexterous manipulators (e.g., Flight Telerobotic Servicer or FTS), and free flyers (e.g., Orbital Maneuvering Vehicle or OMV). Candidate hand controller configurations for these systems vary in many ways: shape, size, number of degrees-of-freedom (DOF), operating modes, provision of force reflection, range of movement, and 'naturalness' of use. Unresolved design implementation issues remain, including such topics as how the current Orbiter RMS rotational and translational rate hand controllers compare with the proposed Space Station Freedom hand controllers, the advantages that position hand controllers offer for these applications, and whether separate hand controller configurations are required for each application. Since previous studies contain little empirical hand controller task performance data, a controlled study is needed that tests Space Station Freedom candidate hand controllers during representative tasks. This study also needs to include anthropometric and biomechanical considerations.

  4. Canadian hand dermatitis management guidelines

    DEFF Research Database (Denmark)

    Lynde, Charles; Guenther, Lyn; Diepgen, Thomas L;

    2010-01-01

    Hand dermatitis (HD) is one of the most common skin conditions; however, it is not a homogeneous disease entity. The severity of HD may range from very mild cases to severe chronic forms, which may result in prolonged disability and, occasionally, refractory HD. Chronic hand dermatitis (CHD) is...

  5. The Left-Handed Writer.

    Science.gov (United States)

    Bloodsworth, James Gaston

    Contrary to the beliefs of many, right-handedness is not a single factor existing in almost all people, with a few exceptions termed left-handed: neither extreme exists independently of the other. During the first 4 years of life there is a period of fluctuation between right and left-handed dominance. Statistics and findings vary in determining…

  6. American Association for Hand Surgery

    Science.gov (United States)

    ... Hand Care Provider Education View 2016 Annual Meeting Photos FREE AAHS Webinar Series Visit the AAHS VuMedi Page Latest News Guides to the Evaluation of Permanent Impairment; Moving from the Fifth to the Sixth Edition. Hand Therapist and Affiliates' Corner - Rehab for Wrist ...

  7. Giant lipomas of the hand

    Directory of Open Access Journals (Sweden)

    Gokce Yildiran

    2015-04-01

    Conclusion: Giant lipomas of the hand are very rare and may cause compressions and other complications. Thus, they require a careful preoperative evaluation in order to make a proper differential diagnosis. [Hand Microsurg 2015; 4(1.000: 8-11

  8. [Hand clasping--an overview].

    Science.gov (United States)

    Reiss, M

    1999-06-01

    The literature concerning the asymmetry clasping hands is reviewed based on 192 studies. This paper describes the incidence, sex differences, age differences and genetical problems including twinning. The incidence of left hand clasping ranges from 30% to 75% (mean 43%). The review confirms the so-called east-west-gradient and there is a predominance of the left type in Europe. Age and sex differences are only small. There is only a small relationship between hand clasping and handedness. 18 authors examined hand clasping in families and 4 in twins. The family data suggest that hand clasping may be under genetic control, yet it is clear that no simple genetic model for the inheritance can be applied. Both monozygotic and dizygotic twins show a low concordance and the R-R, R-L and L-L pairs in monozygotic and dizygotic twins are in binomial distribution. PMID:10483485

  9. 3D Printed Robotic Hand

    Science.gov (United States)

    Pizarro, Yaritzmar Rosario; Schuler, Jason M.; Lippitt, Thomas C.

    2013-01-01

    Dexterous robotic hands are changing the way robots and humans interact and use common tools. Unfortunately, the complexity of the joints and actuations drive up the manufacturing cost. Some cutting edge and commercially available rapid prototyping machines now have the ability to print multiple materials and even combine these materials in the same job. A 3D model of a robotic hand was designed using Creo Parametric 2.0. Combining "hard" and "soft" materials, the model was printed on the Object Connex350 3D printer with the purpose of resembling as much as possible the human appearance and mobility of a real hand while needing no assembly. After printing the prototype, strings where installed as actuators to test mobility. Based on printing materials, the manufacturing cost of the hand was $167, significantly lower than other robotic hands without the actuators since they have more complex assembly processes.

  10. Spontaneous tempo and rhythmic entrainment in a bonobo (Pan paniscus).

    Science.gov (United States)

    Large, Edward W; Gray, Patricia M

    2015-11-01

    The emergence of speech and music in the human species represent major evolutionary transitions that enabled the use of complex, temporally structured acoustic signals to coordinate social interaction. While the fundamental capacity for temporal coordination with complex acoustic signals has been shown in a few distantly related species, the extent to which nonhuman primates exhibit sensitivity to auditory rhythms remains controversial. In Experiment 1, we assessed spontaneous motor tempo and tempo matching in a bonobo (Pan paniscus), in the context of a social drumming interaction. In Experiment 2, the bonobo spontaneously entrained and synchronized her drum strikes within a range around her spontaneous motor tempo. Our results are consistent with the hypothesis that the evolution of acoustic communication builds upon fundamental neurodynamic mechanisms that can be found in a wide range of species, and are recruited for social interactions. PMID:26147705

  11. Automatic Recognition of Facial Actions in Spontaneous Expressions

    Directory of Open Access Journals (Sweden)

    Marian Stewart Bartlett

    2006-09-01

    Full Text Available Spontaneous facial expressions differ from posed expressions in both which muscles are moved, and in the dynamics of the movement. Advances in the field of automatic facial expression measurement will require development and assessment on spontaneous behavior. Here we present preliminary results on a task of facial action detection in spontaneous facial expressions. We employ a user independent fully automatic system for real time recognition of facial actions from the Facial Action Coding System (FACS. The system automatically detects frontal faces in the video stream and coded each frame with respect to 20 Action units. The approach applies machine learning methods such as support vector machines and AdaBoost, to texture-based image representations. The output margin for the learned classifiers predicts action unit intensity. Frame-by-frame intensity measurements will enable investigations into facial expression dynamics which were previously intractable by human coding.

  12. Spontaneous pneumomediastinum on CT : related condition and its clinical significance

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Sung Hyun; Im, Jung Gi; Seo, Joon Beom; Park, Jae Hyung; Yeon, Kyung Mo; Han, Man Chung [Seoul National Univ. (Korea, Republic of). Coll. of Medicine

    1998-03-01

    The purpose of this paper is to tabulate underlying disease and to assess the clinical significance of CT-diagnosed spontaneous pneumomediastinum. We retrospectively reviewed CT scans and medical records of 11 consecutive patients with spontaneous pneumomediastinum, and analyzed their clinical history and course, and in five cases, pulmonary function. CT scans of 126 patients with idiopathic pulmonary fibrosis (IPE) collected while the 11 consecutive patients were being treated were analyzed for the prevalence of pneumomediastinum. We analyzed CT findings with respect to the amount and distribution of air in the mediastinum, and the presence of absence of air outside the mediastinum. Spontaneous pneumomediastinum might be associated with idiopathic pulmonary fibrosis and might be a poor prognostic factor in patients with IPE or BOOP. (author). 18 refs., 2 figs.

  13. Spontaneous pneumomediastinum on CT : related condition and its clinical significance

    International Nuclear Information System (INIS)

    The purpose of this paper is to tabulate underlying disease and to assess the clinical significance of CT-diagnosed spontaneous pneumomediastinum. We retrospectively reviewed CT scans and medical records of 11 consecutive patients with spontaneous pneumomediastinum, and analyzed their clinical history and course, and in five cases, pulmonary function. CT scans of 126 patients with idiopathic pulmonary fibrosis (IPE) collected while the 11 consecutive patients were being treated were analyzed for the prevalence of pneumomediastinum. We analyzed CT findings with respect to the amount and distribution of air in the mediastinum, and the presence of absence of air outside the mediastinum. Spontaneous pneumomediastinum might be associated with idiopathic pulmonary fibrosis and might be a poor prognostic factor in patients with IPE or BOOP. (author). 18 refs., 2 figs

  14. Spontaneous Plasticity of Multineuronal Activity Patterns in Activated Hippocampal Networks

    Directory of Open Access Journals (Sweden)

    Atsushi Usami

    2008-01-01

    Full Text Available Using functional multineuron imaging with single-cell resolution, we examined how hippocampal networks by themselves change the spatiotemporal patterns of spontaneous activity during the course of emitting spontaneous activity. When extracellular ionic concentrations were changed to those that mimicked in vivo conditions, spontaneous activity was increased in active cell number and activity frequency. When ionic compositions were restored to the control conditions, the activity level returned to baseline, but the weighted spatial dispersion of active cells, as assessed by entropy-based metrics, did not. Thus, the networks can modify themselves by altering the internal structure of their correlated activity, even though they as a whole maintained the same level of activity in space and time.

  15. Spontaneous pneumothorax: epidemiology, pathophysiology and cause

    OpenAIRE

    Noppen, M

    2010-01-01

    Spontaneous pneumothorax represents a common clinical problem. An overview of relevant and updated information on epidemiology, pathophysiology and cause(s) of spontaneous (primary and secondary) pneumothorax is described.

  16. Spontaneous pneumothorax: epidemiology, pathophysiology and cause

    Directory of Open Access Journals (Sweden)

    M. Noppen

    2010-09-01

    Full Text Available Spontaneous pneumothorax represents a common clinical problem. An overview of relevant and updated information on epidemiology, pathophysiology and cause(s of spontaneous (primary and secondary pneumothorax is described.

  17. A Case of Spontaneously Resolved Bilateral Primary Spontaneous Pneumothorax

    Directory of Open Access Journals (Sweden)

    Hasan Kahraman

    2014-03-01

    Full Text Available A condition of intrapleural air-space accumulation in individuals without any history of trauma or lung disease is called as primary spontaneous pneumothorax (PSP. Sixteen-years-old male patient admitted with complains of chest pain and dyspnea beginning 3 day ago. On physical examination, severity of breath sounds decreased on right side. Chest radiograph was taken and right-sided pneumothorax was detected and tube thoracostomy was inserted. Two months ago the patient referred to a doctor with similar complaints and physical examination and chest radiograph were reported as normal. The radiograph was retrospectively examined and bilateral PSP was detected. We presented the case duo to spontaneous recovery of bilateral PSP is seen very rarely and so contributes data to the literature. In patients admitted to the clinic with chest pain and shortness of breath, pneumothorax should be considered at differential diagnosis.

  18. Developing a method for quantification of Ascaris eggs on hands

    DEFF Research Database (Denmark)

    Jeandron, Aurelie; Ensink, Jeroen J. H.; Thamsborg, Stig Milan;

    In transmission of soil transmitted helminths, especially with Ascaris and Trichuris infections, the importance of hands is unclear and very limited literature exists. This is partly because of the absence of a reliable method to quantify the number of helminth eggs on hands. The aim of this study...... was to develop a method to assess the number of Ascaris eggs on hands and determine the egg recovery rate of the method. Under laboratory conditions, hands were contaminated with app. 1000 Ascaris eggs, air dried and washed in a plastic bag retaining the washing water, in order to determine recovery rates...... of eggs for two different detergents (cationic [benzethonium chloride 0.1%], anionic [7X 1% - quadrafos, glycol ether, and dioctyl sulfoccinate sodium salt]) and de-ionized water used as control. The highest recovery rate (95.6%) was achieved with a hand rinse performed with 7X 1%. Washing hands...

  19. The moral significance of spontaneous abortion.

    OpenAIRE

    Murphy, T F

    1985-01-01

    Spontaneous abortion is rarely addressed in moral evaluations of abortion. Indeed, 'abortion' is virtually always taken to mean only induced abortion. After a brief review of medical aspects of spontaneous abortion, I attempt to articulate the moral implications of spontaneous abortion for the two poles of the abortion debate, the strong pro-abortion and the strong anti-abortion positions. I claim that spontaneous abortion has no moral relevance for strict pro-abortion positions but that the ...

  20. Spontaneous Breaking of the Quantum Superposition

    OpenAIRE

    Pankovic, Vladan; Predojevic, Milan

    2007-01-01

    In this work spontaneous (non-dynamical) breaking (effective hiding) of the unitary quantum mechanical dynamical symmetry (superposition) is considered. It represents an especial but very interesting case of the general formalism of the spontaneous symmetry breaking (effective hiding). Conceptual analogies with spontaneous breaking of the gauge symmetry in Weinberg-Sallam's electro-weak interaction are pointed out. Also, consequences of the spontaneous superposition breaking in the measuremen...

  1. Sensory Evaluation in Characterization of Fabric Hand

    Institute of Scientific and Technical Information of China (English)

    Ludovic Koehl; Zhou Bin(周斌); Zeng Xian-yi; Ding Yong-sheng(丁永生)

    2004-01-01

    This paper is divided in two parts. The first part presents optimized methods for formalizing and analyzing sensory data provided by different panels on fabric hand evaluation. For achieving this challenge, we first transform each evaluation into fuzzy sets and we submit criteria for assessing the fabric hand evaluation given by experts as well as criteria for computing the distances between different panels and the employed linguistic terms in different evaluation spaces. This sensory data analysis allows us to check expert's and customer's behaviors on fabric hand.Based on this first procedure about formalization and sensory data analysis, we can study the relationships between sensory evaluation given by different experts for a fabric set and the objective data set provided by appropriate measurements. From a set of fabric samples, a database with nearly 10 parameters characterizing the touch handle is built. This way of evaluation is performed by measuring a set of physical parameters on fabrics. Those parameters constitute the input variables of our model. For the textile industry, the major difficulty lies in the fact that the performed measurements on fabrics lead to precise numerical data describing indirectly fabric hand but their relationships with the evaluation given by experts should be exploited. We implement a fuzzy model which predicts the marks reached for a set of linguistic terms.The effectiveness of these methods and criteria is shown through a number of knitted cotton fabrics.

  2. Regular use of a hand cream can attenuate skin dryness and roughness caused by frequent hand washing

    Directory of Open Access Journals (Sweden)

    Kampf Günter

    2006-02-01

    Full Text Available Abstract Background Aim of the study was to determine the effect of the regular use of a hand cream after washing hands on skin hydration and skin roughness. Methods Twenty-five subjects washed hands and forearms with a neutral soap four times per day, for 2 minutes each time, for a total of two weeks. One part of them used a hand cream after each hand wash, the others did not (cross over design after a wash out period of two weeks. Skin roughness and skin hydration were determined on the forearms on days 2, 7, 9 and 14. For skin roughness, twelve silicon imprint per subject and time point were taken from the stratum corneum and assessed with a 3D skin analyzer for depth of the skin relief. For skin hydration, five measurements per subject and time point were taken with a corneometer. Results Washing hands lead to a gradual increase of skin roughness from 100 (baseline to a maximum of 108.5 after 9 days. Use of a hand cream after each hand wash entailed a decrease of skin roughness which the lowest means after 2 (94.5 and 14 days (94.8. Skin hydration was gradually decreased after washing hands from 79 (baseline to 65.5 after 14 days. The hand wash, followed by use of a hand cream, still decreased skin hydration after 2 days (76.1. Over the next 12 days, however, skin hydration did not change significantly (75.6 after 14 days. Conclusion Repetitive and frequent hand washing increases skin dryness and roughness. Use of a hand cream immediately after each hand wash can confine both skin dryness and skin roughness. Regular use of skin care preparations should therefore help to prevent both dry and rough skin among healthcare workers in clinical practice.

  3. Hairdressers - hand eczema, hair dyes and hand protection

    OpenAIRE

    Lind, Marie-Louise

    2006-01-01

    Hand eczema is a well-known problem in occupations that involve largely manual work, in combination with long periods of wet exposure and skin contact with chemicals. Hairdressing involves dermal exposure to a number of skin damaging substances. Hair cosmetic products such as hair dyes, permanent wave solutions and bleaches can cause contact allergy and extensive wet work can cause irritant contact dermatitis (ICD). In this thesis the occurrence of hand eczema was studied i...

  4. Spontaneous Radial Nerve Palsy Subsequent to Non-Traumatic Neuroma

    OpenAIRE

    Adel Ebrahimpour; Shahram Nazerani; Reza Tavakoli Darestani; Salim Khani

    2013-01-01

    Introduction: Spontaneous radial palsy is a not rare finding in hand clinics. The anatomy of the radial nerve renders it prone to pressure paralysis as often called “Saturday night palsy”. This problem is a transient nerve lesion and an acute one but the case presented here is very unusual in that it seems this entity can also occur as an acute on chronic situation with neuroma formation.Case Presentation: A 61 year-old man presented with the chief complaint of inability to extend the wrist a...

  5. Inhibin A and B in adolescents and young adults with Turner's syndrome and no sign of spontaneous puberty

    DEFF Research Database (Denmark)

    Gravholt, Claus Højbjerg; Naeraa, Rune Weis; Andersson, Anna-Maria;

    2002-01-01

    The aim of this study was to assess levels of inhibin A and B, FSH and LH in Turner's syndrome (TS) without signs of spontaneous ovarian activity.......The aim of this study was to assess levels of inhibin A and B, FSH and LH in Turner's syndrome (TS) without signs of spontaneous ovarian activity....

  6. Corner Detection of Hand Gesture

    OpenAIRE

    Lili Zhang; Linghua Li

    2012-01-01

    This paper studies the methods of corner detection of hand gesture, and mainly introduces the orthogonal three-direction chain code (3OT) and uses it in corner detection of hand gesture. The study is discussed from four aspects: the techniques used in corner detection, the techniques of Freeman chain code, the main idea of 3OT, the process of corner detection with 3OT and the experiments on corner detectors used for hand gesture images of 26 letters in American Sign Language are described in ...

  7. Corner Detection of Hand Gesture

    Directory of Open Access Journals (Sweden)

    Lili Zhang

    2012-12-01

    Full Text Available This paper studies the methods of corner detection of hand gesture, and mainly introduces the orthogonal three-direction chain code (3OT and uses it in corner detection of hand gesture. The study is discussed from four aspects: the techniques used in corner detection, the techniques of Freeman chain code, the main idea of 3OT, the process of corner detection with 3OT and the experiments on corner detectors used for hand gesture images of 26 letters in American Sign Language are described in detail. Experiment results show that the 3OT has well performance with exact corner detection rate and least false corner’s number.

  8. On the other (invisible) hand ...

    OpenAIRE

    Anthony Brewer

    2006-01-01

    The invisible hand as it appears in the Theory of Moral Sentiments is commonly treated as an afterthought in discussions of the version in the Wealth of Nations, but it deserves attention in its own right. I will argue that there is an entirely coherent (if not entirely plausible) economic argument underpinning the invisible hand of the Theory of Moral Sentiments. It is quite different from the invisible hand argument of the Wealth of Nations, not because of any conflict but because they addr...

  9. Majoron and left-handed neutrino masses in SU(5)

    Energy Technology Data Exchange (ETDEWEB)

    Buccella, F. (Istituto Nazionale di Fisica Nucleare, Naples (Italy); Naples Univ. (Italy). Ist. di Fisica Teorica); Gelmini, G.B. (International Centre for Theoretical Physics, Trieste (Italy)); Masiero, A.; Roncadelli, M. (Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.). Werner-Heisenberg-Inst. fuer Physik)

    1984-01-16

    We consider the spontaneous breaking of B-L in SU(5) in connection with left-handed neutrino masses. We show that the ensuing Goldstone boson, 'the majoron', is harmless. The low-energy predictions are the same as in the SU(2)sub(L) x U(1) majoron model which, in particular, predicts the existence of doubly and singly charged scalars, with masses <= 250 GeV and with a mass ratio of ..sqrt..2. Going to SU(5), one would expect these scalars to escape to the grand unified mass. This does not happen and, surprisingly, even the ratio ..sqrt..2 is preserved.

  10. Spontaneous Rotational Inversion in Phycomyces

    KAUST Repository

    Goriely, Alain

    2011-03-01

    The filamentary fungus Phycomyces blakesleeanus undergoes a series of remarkable transitions during aerial growth. During what is known as the stagea IV growth phase, the fungus extends while rotating in a counterclockwise manner when viewed from above (stagea IVa) and then, while continuing to grow, spontaneously reverses to a clockwise rotation (stagea IVb). This phase lasts for 24-48Ah and is sometimes followed by yet another reversal (stageAIVc) before the overall growth ends. Here, we propose a continuum mechanical model of this entire process using nonlinear, anisotropic, elasticity and show how helical anisotropy associated with the cell wall structure can induce spontaneous rotation and, under appropriate circumstances, the observed reversal of rotational handedness. © 2011 American Physical Society.

  11. SPONTANEOUS COMBUSTION RELATED FIRE RATIOS

    Directory of Open Access Journals (Sweden)

    Cem ŞENSÖĞÜT

    1999-01-01

    Full Text Available For explaining the situation arising from spontaneous combustion, there is a necessity for quick and accurate analysis of the gaseous products of combustion. It is also very important to interpret these data correctly. This interpretation provides information prominence to mine rescue crew and the mine management concerning the withdrawal or continuity of rescue team in a rescue and recovery operation before an explosion takes place. Additionally, it is also of utmost importance to see whether the fire combating techniques are effective or the fire is under control ensuring the security of workers and equipment during and after the sealing works. Therefore, the indices related with spontaneous combustion which are still commonly in use are summarised in this work.

  12. Spontaneous esophageal-pleural fistula

    Directory of Open Access Journals (Sweden)

    Sameer Vyas

    2011-01-01

    Full Text Available Spontaneous esophageal-pleural fistula (EPF is a rare entity. We describe a case in a middle-aged female who presented with severe retrosternal chest pain and shortness of breadth. Chest computed tomography showed right EPF and hydropneumothorax. She was managed conservatively keeping the chest tube drainage and performing feeding jejunostomy. A brief review of the imaging finding and management of EPF is discussed.

  13. CSIR helps prevent spontaneous combustion

    Energy Technology Data Exchange (ETDEWEB)

    Vuuren, M. van (CSIR Energy Technology (South Africa))

    1992-03-01

    Heaps of stockpiled coal could present a fire hazard due to the risk of spontaneous combustion. Regular monitoring of stockpiles and bunker testing of coals help to prevent stockpile fires. This brief article describes the recent upgrading of the CSIR's bunker test facility that enables coal producers, users and exporters to test their products under simulated conditions that duplicate the actual conditions under which coal is stored. 2 photos.

  14. Spontaneous Emotional Facial Expression Detection

    OpenAIRE

    Zhihong Zeng; Yun Fu; Roisman, Glenn I.; Zhen Wen; Yuxiao Hu; Thomas S. Huang

    2006-01-01

    Change in a speaker’s emotion is a fundamental component in human communication. Automatic recognition of spontaneous emotion would significantly impact human-computer interaction and emotion-related studies in education, psychology and psychiatry. In this paper, we explore methods for detecting emotional facial expressions occurring in a realistic human conversation setting—the Adult Attachment Interview (AAI). Because non-emotional facial expressions have no distinct description and are exp...

  15. Spontaneous pneumomediastinum following normal labour

    OpenAIRE

    Beynon, Fenella; Mearns, Stacey

    2011-01-01

    A young, previously well primigravida presented a few hours after a short labour with sudden onset chest pain, shortness of breath and odynophagia. She had subcutaneous emphysema but did not have significant cardiorespiratory compromise. She was found to have a spontaneous pneumomediastinum, likely secondary to raised intrathoracic pressure during labour. Similar cases have been reported previously, however there are often risk factors associated such as pre-existing lung disease and illicit ...

  16. Kvinners reaksjoner etter spontan abort

    OpenAIRE

    2012-01-01

    Background: Approximately 15 percent of all verified pregnancies end in miscarriage. It is known that spontaneous abortion often cause psychological distress. The women are at risk of suffering from grief, anxiety, depression and other psychological symptoms. Psychological symptoms could persist for years after the miscarriage and there is frequently no routine to identify psychiatric morbidity among the women. Research has been conducted to identify the consequences of abortion, but the stud...

  17. Spontaneous esophageal-pleural fistula

    OpenAIRE

    Sameer Vyas; Mahesh Prakash; Lileshwar Kaman; Nidhi Bhardwaj; Niranjan Khandelwal

    2011-01-01

    Spontaneous esophageal-pleural fistula (EPF) is a rare entity. We describe a case in a middle-aged female who presented with severe retrosternal chest pain and shortness of breadth. Chest computed tomography showed right EPF and hydropneumothorax. She was managed conservatively keeping the chest tube drainage and performing feeding jejunostomy. A brief review of the imaging finding and management of EPF is discussed.

  18. Spontaneous polaron transport in biopolymers.

    OpenAIRE

    Chakrabarti, B.; Piette, B. M. A. G.; Zakrzewski, W. J.

    2012-01-01

    Polarons, introduced by Davydov to explain energy transport in $\\alpha$-helices, correspond to electrons localised on a few lattice sites because of their interaction with phonons. While the static polaron field configurations have been extensively studied, their displacement is more difficult to explain. In this paper we show that, when the next to nearest neighbour interactions are included, for physical values of the parameters, polarons can spontaneously move, at T=0, on bent chains that ...

  19. Handwashing: Clean Hands Save Lives

    Science.gov (United States)

    ... The CDC Cancel Submit Search The CDC Handwashing: Clean Hands Save Lives Note: Javascript is disabled or ... and what you can do if soap and clean, running water are not available. Whether you are ...

  20. Hand, Foot and Mouth Disease

    Science.gov (United States)

    ... Submit Button Past Emails CDC Features Hand, Foot & Mouth Disease Language: English Español (Spanish) Recommend on Facebook ... sick Is HFMD the Same as Foot-and-Mouth Disease? No. HFMD is often confused with foot- ...

  1. Spontaneous Splenic Rupture in Melanoma

    Directory of Open Access Journals (Sweden)

    Hadi Mirfazaelian

    2014-01-01

    Full Text Available Spontaneous rupture of spleen due to malignant melanoma is a rare situation, with only a few case reports in the literature. This study reports a previously healthy, 30-year-old man who came with chief complaint of acute abdominal pain to emergency room. On physical examination, abdominal tenderness and guarding were detected to be coincident with hypotension. Ultrasonography revealed mild splenomegaly with moderate free fluid in abdominopelvic cavity. Considering acute abdominal pain and hemodynamic instability, he underwent splenectomy with splenic rupture as the source of bleeding. Histologic examination showed diffuse infiltration by tumor. Immunohistochemical study (positive for S100, HMB45, and vimentin and negative for CK, CD10, CK20, CK7, CD30, LCA, EMA, and chromogranin confirmed metastatic malignant melanoma. On further questioning, there was a past history of a nasal dark skin lesion which was removed two years ago with no pathologic examination. Spontaneous (nontraumatic rupture of spleen is an uncommon situation and it happens very rarely due to neoplastic metastasis. Metastasis of malignant melanoma is one of the rare causes of the spontaneous rupture of spleen.

  2. Spontaneous shrinkage of vestibular schwannoma

    Science.gov (United States)

    Romani, Rossana; Pollock, Jonathan

    2016-01-01

    Background: “Watch, wait, and rescan” (WWR) has an established place as a successful management option for a significant proportion of vestibular schwannomas (VS) as an alternative to microsurgical removal or stereotactic radiotherapy. VS may grow slowly and continuously, followed by stagnation or even shrinkage. We present two case reports of spontaneous shrinkage of VS along with a review of the literature. Case Description: A 29-year-old female presented with a progressive history of visual blurring and intermittent diplopia over 2 months. A 29 mm of maximum intracranial diameter (ICD) VS with secondary obstructive hydrocephalus was diagnosed. The patient underwent a ventriculo-peritoneal shunt with resolution of her symptoms and opted for initial WWR management. Interval scanning between 2007 and 2014 showed progressive reduction in the maximum ICD together with reduction in the degree of central tumor enhancement. Maximum ICD at most recent follow up was 22 mm. A 28-year-old female was referred with right sensorineural deafness. A right VS of maximum ICD of 27 mm was diagnosed. Initial WWR management was planned after discussion. Serial imaging showed an initial increase in the size of the tumor followed by progressive reduction in size. The most recent follow up showed a maximum ICD of 20 mm. Conclusion: Early WWR management can be associated with spontaneous shrinkage of VS over time. Prospective clinical study of larger numbers of such cases using the UK VS database may help to identify predictive factors for the spontaneous regression of VS. PMID:27280055

  3. Etiology of primary spontaneous pneumothorax.

    Science.gov (United States)

    Lyra, Roberto de Menezes

    2016-01-01

    With the advent of HRCT, primary spontaneous pneumothorax has come to be better understood and managed, because its etiology can now be identified in most cases. Primary spontaneous pneumothorax is mainly caused by the rupture of a small subpleural emphysematous vesicle (designated a bleb) or of a subpleural paraseptal emphysematous lesion (designated a bulla). The aim of this pictorial essay was to improve the understanding of primary spontaneous pneumothorax and to propose a description of the major anatomical lesions found during surgery. RESUMO Com o advento da TCAR, o pneumotórax espontâneo primário passou a ser mais bem entendido e conduzido, pois sua etiologia pode ser atualmente identificada na maioria dos casos. O pneumotórax espontâneo primário tem como principal causa a rotura de uma pequena vesícula enfisematosa subpleural, denominada bleb ou de uma lesão enfisematosa parasseptal subpleural, denominada bulla. O objetivo deste ensaio pictórico foi melhorar o entendimento do pneumotórax espontâneo primário e propor uma descrição das principais lesões anatômicas encontradas durante a cirurgia. PMID:27383937

  4. Turbulence, Spontaneous Stochasticity and Climate

    Science.gov (United States)

    Eyink, Gregory

    Turbulence is well-recognized as important in the physics of climate. Turbulent mixing plays a crucial role in the global ocean circulation. Turbulence also provides a natural source of variability, which bedevils our ability to predict climate. I shall review here a recently discovered turbulence phenomenon, called ``spontaneous stochasticity'', which makes classical dynamical systems as intrinsically random as quantum mechanics. Turbulent dissipation and mixing of scalars (passive or active) is now understood to require Lagrangian spontaneous stochasticity, which can be expressed by an exact ``fluctuation-dissipation relation'' for scalar turbulence (joint work with Theo Drivas). Path-integral methods such as developed for quantum mechanics become necessary to the description. There can also be Eulerian spontaneous stochasticity of the flow fields themselves, which is intimately related to the work of Kraichnan and Leith on unpredictability of turbulent flows. This leads to problems similar to those encountered in quantum field theory. To quantify uncertainty in forecasts (or hindcasts), we can borrow from quantum field-theory the concept of ``effective actions'', which characterize climate averages by a variational principle and variances by functional derivatives. I discuss some work with Tom Haine (JHU) and Santha Akella (NASA-Goddard) to make this a practical predictive tool. More ambitious application of the effective action is possible using Rayleigh-Ritz schemes.

  5. Hand, Foot, and Mouth Disease

    Centers for Disease Control (CDC) Podcasts

    2013-08-08

    Hand, foot, and mouth disease is a contagious illness that mainly affects children under five. In this podcast, Dr. Eileen Schneider talks about the symptoms of hand, foot, and mouth disease, how it spreads, and ways to help protect yourself and your children from getting infected with the virus.  Created: 8/8/2013 by National Center for Immunization and Respiratory Diseases (NCIRD).   Date Released: 8/8/2013.

  6. Hand gestures mouse cursor control

    Directory of Open Access Journals (Sweden)

    Marian-Avram Vincze

    2014-05-01

    Full Text Available The paper describes the implementation of a human-computer interface for controlling the mouse cursor. The test reveal the fact: a low-cost web camera some processing algorithms are quite enough to control the mouse cursor on computers. Even if the system is influenced by the illuminance level on the plane of the hand, the current study may represent a start point for some studies on the hand tracking and gesture recognition field.

  7. Game with Hand Gesture Control

    OpenAIRE

    Kartous, Petr

    2009-01-01

    This work is focused on controlling the game by using hand gestures. The main part of the work is image segmentation and detection of the hand in picture. For the segmentation of the image are used techniques of skin detection and the background subtraction with adaptive model of the background. Also the methods of mathematical morphology to eliminate the noise from the image and the appropriate methods for transferring images of gestures to characteristic gestures in numerical form are menti...

  8. Brain plasticity and hand function

    OpenAIRE

    Björkman, Anders

    2005-01-01

    The aim of this thesis was to investigate the effects of cortical reorganisational changes following experimental deafferentation and peripheral nerve injury and apply the concept of brain plasticity to enhance sensory re-education following peripheral nerve injury and repair in the hand. In the first two papers the effects on hand function of contralateral deafferentation was investigated. Tourniquet induced anaesthesia (paper I) resulted in significant improvement in perception of to...

  9. Seesaw model in SO(10) with an upper limit on right-handed neutrino masses

    OpenAIRE

    Abud, M.; Buccella, F.; Falcone, D.; Oliver, L

    2011-01-01

    In the framework of SO(10) gauge unification and the seesaw mechanism, we show that the upper bound on the mass of the heaviest right-handed neutrino $M_{R_3} < 3 \\times 10^{11}$ GeV, given by the Pati-Salam intermediate scale of $B-L$ spontaneous symmetry breaking, constrains the observables related to the left-handed light neutrino mass matrix. We assume such an upper limit on the masses of right-handed neutrinos and, as a first approximation, a Cabibbo form for the matrix $V^L$ that diagon...

  10. The Rubber Hand Illusion: feeling of ownership and proprioceptive drift do not go hand in hand.

    Science.gov (United States)

    Rohde, Marieke; Di Luca, Massimiliano; Ernst, Marc O

    2011-01-01

    In the Rubber Hand Illusion, the feeling of ownership of a rubber hand displaced from a participant's real occluded hand is evoked by synchronously stroking both hands with paintbrushes. A change of perceived finger location towards the rubber hand (proprioceptive drift) has been reported to correlate with this illusion. To measure the time course of proprioceptive drift during the Rubber Hand Illusion, we regularly interrupted stroking (performed by robot arms) to measure perceived finger location. Measurements were made by projecting a probe dot into the field of view (using a semi-transparent mirror) and asking participants if the dot is to the left or to the right of their invisible hand (Experiment 1) or to adjust the position of the dot to that of their invisible hand (Experiment 2). We varied both the measurement frequency (every 10 s, 40 s, 120 s) and the mode of stroking (synchronous, asynchronous, just vision). Surprisingly, with frequent measurements, proprioceptive drift occurs not only in the synchronous stroking condition but also in the two control conditions (asynchronous stroking, just vision). Proprioceptive drift in the synchronous stroking condition is never higher than in the just vision condition. Only continuous exposure to asynchronous stroking prevents proprioceptive drift and thus replicates the differences in drift reported in the literature. By contrast, complementary subjective ratings (questionnaire) show that the feeling of ownership requires synchronous stroking and is not present in the asynchronous stroking condition. Thus, subjective ratings and drift are dissociated. We conclude that different mechanisms of multisensory integration are responsible for proprioceptive drift and the feeling of ownership. Proprioceptive drift relies on visuoproprioceptive integration alone, a process that is inhibited by asynchronous stroking, the most common control condition in Rubber Hand Illusion experiments. This dissociation implies that

  11. Higgs-like mechanism for spontaneous spacetime symmetry breaking

    Science.gov (United States)

    Nishimura, Kimihide

    2015-10-01

    The study of spontaneous breakdown of spacetime symmetries leads to the discovery of another type of Higgs mechanism operating in a chiral SU(2) model. Some of the Nambu-Goldstone vector mesons emergent from simultaneous violations of gauge and Lorentz symmetries are, in this case, absorbed by a left-handed doublet and endow one of the fermions with a right-handed state, while another part becomes emergent as photons. Accordingly, this mechanism allows a chiral fermion to acquire a mass, and it may enable the emergent theory to reproduce the electromagnetism equivalent to the QED sector in the standard theory. It is also mentioned that the "fermion-boson puzzle" known in the presence of a 't Hooft-Polyakov monopole does not exist in our theory.

  12. Prophylaxis of venous thrombosis in patients with spontaneous intracerebral bleeding

    Directory of Open Access Journals (Sweden)

    Emanuele Rezoagli

    2011-08-01

    Full Text Available Spontaneous intracerebral haemorrhage (SIH represents a severe clinical event that is associated with high rates of mortality and morbidity. Only a minority of SIH patients receive surgical treatment, whereas the majority are treated conservatively. Venous thromboembolism (VTE is one of the most common complications in SIH patients and a potential cause of death. Because of the lack of adequate evidences from the literature, the risk to benefit ratio of pharmacologic prophylaxis of VTE, represented on the one hand by hematoma enlargement and/or rebleeding and on the other hand by an expected reduction of the risk of VTE, remains controversial. Mechanical prophylaxis is a potentially safer alternative, but the efficacy of this approach is uncertain. In the absence of specific clinical guidelines containing clear-cut recommendations, physicians have insufficient tools to assist their therapeutic decisions.

  13. Effectiveness of a multimodal hand hygiene campaign and obstacles to success in Addis Ababa, Ethiopia

    OpenAIRE

    Schmitz, Karen; Kempker, Russell R.; Tenna, Admasu; Stenehjem, Edward; Abebe, Engida; Tadesse, Lia; Jirru, Ermias Kacha; Blumberg, Henry M.

    2014-01-01

    Background Hand hygiene is the cornerstone of infection control and reduces rates of healthcare associated infection. There are limited data evaluating hand hygiene adherence and hand hygiene campaign effect in resource-limited settings, especially in Sub-Saharan Africa. This study assessed the impact of implementing a World Health Organization (WHO)-recommended multimodal hand hygiene campaign at a hospital in Ethiopia. Methods This study included a before-and-after assessment of health care...

  14. Clinical severity and prognosis of hand eczema

    DEFF Research Database (Denmark)

    Hald, M; Agner, T; Blands, J;

    2009-01-01

    to identify factors associated with severe disease and a poor prognosis. METHODS: Study participants were 799 patients with HE from nine dermatological clinics in Denmark. Severity assessment of the HE was done at baseline and at the 6-month follow-up using the Hand Eczema Severity Index (HECSI) and......BACKGROUND: Hand eczema (HE) is a frequent, long-lasting disease with both personal and societal repercussions. Consequently, more information is needed on factors that maintain symptoms. OBJECTIVES: In this study, patients with HE were followed for 6 months from the first visit to a dermatologist...... unskilled worker was a predictor for a poor prognosis at follow-up (P = 0.04), and the presence of frequent symptoms during the previous 12 months was associated with severe initial disease (P = 0.02) and a poor prognosis (P = 0.04). CONCLUSIONS: Overall, the disease had improved 6 months after the...

  15. The upper hand on compartment syndrome.

    LENUS (Irish Health Repository)

    Dolan, Roisin T

    2012-11-01

    Metacarpal fractures are common injuries, accounting for approximately 30% to 40% of all hand fractures and with a lifetime incidence of 2.5%. Traditionally regarded as an innocuous injury, metacarpal fractures tend to be associated with successful outcomes after closed reduction and immobilization. Hand compartment syndrome (HCS) is a rare clinical entity with potential devastating consequences in terms of loss of function and quality-of-life outcomes. We discuss the case of a 44-year-old woman presenting with multiple closed metacarpal fractures as a result of low-energy trauma, complicated by acute HCS. We review the presentation, clinical assessment, and optimal surgical management of acute HCS with reference to international literature.

  16. Superweak CP-violation and right-handed horizontal interactions

    International Nuclear Information System (INIS)

    A horizontal extension of the Weinberg-Salam electroweak theory by a right-handed 0(3)sub(R)sub(H) gauge symmetry for the three fermion families is studied. By an appropriate choice of the Higgs-scalar fields the CP-symmetry of the Lagrangean is spontaneously broken, but the mixing of the left-handed fermion states, and hence the Kobayashi-Maskawa mixing matrix, remains real. The CP-violation is manifested in the superweak horizontal gauge interactions, which are suppressed by the large mass of the corresponding gauge bosons. It is, however, possible that the horizontal boson acting on the second and third families can be considerably lighter than the other two, implying an interesting phenomenology of the related CP-violation effects and flavour-changing neutral currents. (orig.)

  17. Spontaneous ultra-weak photon emission from human hands varies diurnally

    Czech Academy of Sciences Publication Activity Database

    Van Wijk, E.; Van Wijk, R.; Cifra, Michal

    Bellingham: SPIE - The International Society for Optical Engineering, 2007 - (Popp, J.; von Bally, G.), s. 66331j.1-66331j.9. (Proceedings of SPIE. Biomedical Optics. Vol. 6633). ISBN 978-0-8194-6777-5. ISSN 1605-7422. [LASER 2007: World of Photonics - European Conference on Biomedical Optics 2007 - Biophotonics: Optics in Life Science. Munich (DE), 18.06.2007-21.06.2007] Institutional research plan: CEZ:AV0Z20670512 Keywords : bioluminescence * photons * skin Subject RIV: BO - Biophysics

  18. Observation of Spontaneous Expressive Language (OSEL): A New Measure for Spontaneous and Expressive Language of Children with Autism Spectrum Disorders and Other Communication Disorders

    OpenAIRE

    Kim, So Hyun; Junker, Dörte; Lord, Catherine

    2014-01-01

    A new language measure, the Observation of Spontaneous Expressive Language (OSEL), is intended to document spontaneous use of syntax, pragmatics, and semantics in 2-12-year-old children with ASD and other communication disorders with expressive language levels comparable to typical 2-5 year olds. Because the purpose of the OSEL is to provide developmental norms for use of language, the first step involves assessment of the scale’s feasibility, validity, and reliability using a sample of 180 2...

  19. Quantity of ethanol absorption after excessive hand disinfection using three commercially available hand rubs is minimal and below toxic levels for humans

    OpenAIRE

    Toma Cyril D; Kampf Guenter; Bieber Nora; Below Harald; Kramer Axel; Huebner Nils-Olaf; Assadian Ojan

    2007-01-01

    Abstract Background Despite the increasing promotion of alcohol-based hand rubs and the worldwide use of ethanol-based hand rubs in hospitals only few studies have specifically addressed the issue of ethanol absorption when repeatedly applied to human skin. The aim of this study was to assess if ethanol absorption occurs during hygienic and surgical hand disinfection using three different alcohol-based hand-rubs, and to quantify absorption levels in humans. Methods Twelve volunteers applied t...

  20. Fighting hand to hand over physician workforce policy.

    Science.gov (United States)

    Grumbach, Kevin

    2002-01-01

    A vexing problem in health policy is getting the right number of physicians in the right specialties in the right locations at the right time. I examine market and public planning approaches to getting the number "right." After discussing the basic premises of the invisible hand of the market and the heavy hand of government regulation, I apply these concepts to a review of the past century of U.S. physician supply and workforce policy. I conclude by examining recent health system trends that make clear the need for a firm regulatory grasp on physician workforce policy. PMID:12224874

  1. Myelopathy hand in cervical radiculopathy

    International Nuclear Information System (INIS)

    The so-called 'myelopathy hand', or characteristic finger paralysis, often recognized in cervical compression myelopathy, has been considered a unique manifestation of cervical myelopathy. We used our original grip and release test, a 15-second test in which finger motion is captured with a digital camera, to investigate whether cervical radiculopathy has the same characteristics as myelopathy hand. Thirty patients with pure radiculopathy, id est (i.e.), who had radiating arm pain and evidence of corresponding nerve root impingement on X-ray images or MRI scans, but did not have spinal cord compression, served as the subjects. In contrast to other radiculopathies, C7 radiculopathy was manifested by a significant reduction in the number of finger motion cycles on the affected side in comparison with the unaffected side, the same as in myelopathy hand. Uncoordinated finger motion was significantly more frequent on the affected side in C6 radiculopathy than on the unaffected side. These findings contradict the conventional notion that myelopathy hand is a unique manifestation of cervical myelopathy, but some radiculopathies manifested the same kinds of finger paralysis observed in myelopathy hand. (author)

  2. Adequate Hand Washing and Glove Use Are Necessary To Reduce Cross-Contamination from Hands with High Bacterial Loads.

    Science.gov (United States)

    Robinson, Andrew L; Lee, Hyun Jung; Kwon, Junehee; Todd, Ewen; Rodriguez, Fernando Perez; Ryu, Dojin

    2016-02-01

    Hand washing and glove use are the main methods for reducing bacterial cross-contamination from hands to ready-to-eat food in a food service setting. However, bacterial transfer from hands to gloves is poorly understood, as is the effect of different durations of soap rubbing on bacterial reduction. To assess bacterial transfer from hands to gloves and to compare bacterial transfer rates to food after different soap washing times and glove use, participants' hands were artificially contaminated with Enterobacter aerogenes B199A at ∼9 log CFU. Different soap rubbing times (0, 3, and 20 s), glove use, and tomato dicing activities followed. The bacterial counts in diced tomatoes and on participants' hands and gloves were then analyzed. Different soap rubbing times did not significantly change the amount of bacteria recovered from participants' hands. Dicing tomatoes with bare hands after 20 s of soap rubbing transferred significantly less bacteria (P soap rubbing. Wearing gloves while dicing greatly reduced the incidence of contaminated tomato samples compared with dicing with bare hands. Increasing soap washing time decreased the incidence of bacteria recovered from outside glove surfaces (P bacterial cross-contamination in food service environments. PMID:26818993

  3. Hand-Based Biometric Analysis

    Science.gov (United States)

    Bebis, George (Inventor); Amayeh, Gholamreza (Inventor)

    2015-01-01

    Hand-based biometric analysis systems and techniques are described which provide robust hand-based identification and verification. An image of a hand is obtained, which is then segmented into a palm region and separate finger regions. Acquisition of the image is performed without requiring particular orientation or placement restrictions. Segmentation is performed without the use of reference points on the images. Each segment is analyzed by calculating a set of Zernike moment descriptors for the segment. The feature parameters thus obtained are then fused and compared to stored sets of descriptors in enrollment templates to arrive at an identity decision. By using Zernike moments, and through additional manipulation, the biometric analysis is invariant to rotation, scale, or translation or an in put image. Additionally, the analysis utilizes re-use of commonly-seen terms in Zernike calculations to achieve additional efficiencies over traditional Zernike moment calculation.

  4. [Hand hygiene: revolution and globalization].

    Science.gov (United States)

    Pittet, Didier

    2009-04-01

    Hand hygiene is the primary measure to prevent healthcare-associated infections and the spread of antimicrobial resistance. Low staff compliance remains a major problem. Successful promotion requires a multimodal strategy. The World Health Organization (WHO) proposes an approach including at least five components: system change, in particular the recourse to alcohol-based hand rubbing as the new standard of care, staff education using newly developed tools, monitoring and feedback of staff performance, reminders in the workplace, and promotion of an institutional safety climate. Patient participation in hand hygiene promotion is under testing. Early results of the strategy tested in a large number of healthcare settings in both limited- and high-resource countries are extremely encouraging. PMID:19492514

  5. Urunana Audiences at Home and Away: Together 'Hand in Hand'?

    NARCIS (Netherlands)

    H.M. Hintjens (Helen); F. Bayisenge

    2011-01-01

    textabstractUrunana (‘Hand in Hand’) is Rwanda’s first radio soap opera. The production emerged during the late 1990s from a three-way transnational production partnership between: The Great Lakes section of the BBC World Service; the Well Woman Media Project of the London-based NGO, Health Unlimite

  6. Spontaneous fission of superheavy nuclei

    Indian Academy of Sciences (India)

    R A Gherghescu; D N Poenaru

    2015-09-01

    The macroscopic–microscopic method is extended to calculate the deformation energy and penetrability for binary nuclear configurations typical for fission processes. The deformed two-centre shell model is used to obtain single-particle energy levels for the transition region of two partially overlapped daughter and emitted fragment nuclei. The macroscopic part is obtained using the Yukawa-plus-exponential potential. The microscopic shell and pairing corrections are obtained using the Strutinsky and BCS approaches and the cranking formulae yield the inertia tensor. Finally, the WKB method is used to calculate penetrabilities and spontaneous fission half-lives. Calculations are performed for the decay of 282,292120 nuclei.

  7. Treatment of Chronic Spontaneous Urticaria

    OpenAIRE

    Kaplan, Allen P

    2012-01-01

    Chronic spontaneous urticaria is defined as persistent symptoms of urticaria for 6 weeks or more. It is associated with autoimmunity in approximately 45 percent of patients. Therapy is often difficult however the initial approach should employ high-dose non-sedating antihistamines; 4-6 tablets/day may be necessary. It has been shown that the response to 4 tablets/day exceeds 3, and exceeds 2, which exceeds 1. However the dose that corresponds to the maximal dose of first generation antihistam...

  8. Spontaneous violation of mirror symmetry

    CERN Document Server

    Dyatlov, Igor T

    2015-01-01

    A symmetry violation model is considered for a system that can spontaneously choose between identical states which differ from each other only in weak properties (R-L). Such mirror symmetry allows reproduction of observed qualitative properties of quark and lepton mixing matrices. The lepton mixing matrix evidences in this case in favor of the inverse mass spectrum and the Dirac nature of SM neutrino. Notwithstanding the Dirac properties of neutrino, an exchange of lepton numbers such as $e^{-}+\\mu^{+}\\rightarrow e^{+}+\\mu^{-}$ is possible but with only leptons participating in the process.

  9. Spontaneous osteonecrosis of the knee

    International Nuclear Information System (INIS)

    Spontaneous osteonecrosis of the knee presents with acute onset of severe, pain in elderly patients, usually female and usually without a history of trauma. Originally described as idiopathic osteonecrosis, the exact etiology is still debated. Evidence suggests that an acute fracture occurs as a result of chronic stress or minor trauma to a weakened subchondral bone plate. The imaging characteristics on MR reflect the age of the lesion and the symptoms. More appropriate terminology may be ' subchondral insufficiency fracture of the knee' or 'focal subchondral osteonecrosis'

  10. Spontaneous osteonecrosis of the knee

    Energy Technology Data Exchange (ETDEWEB)

    Kattapuram, Taj M. [Department of Radiology, Massachusetts General Hospital (United States); Kattapuram, Susan V. [Department of Radiology, Massachusetts General Hospital (United States)], E-mail: skattapuram@partners.org

    2008-07-15

    Spontaneous osteonecrosis of the knee presents with acute onset of severe, pain in elderly patients, usually female and usually without a history of trauma. Originally described as idiopathic osteonecrosis, the exact etiology is still debated. Evidence suggests that an acute fracture occurs as a result of chronic stress or minor trauma to a weakened subchondral bone plate. The imaging characteristics on MR reflect the age of the lesion and the symptoms. More appropriate terminology may be ' subchondral insufficiency fracture of the knee' or 'focal subchondral osteonecrosis'.

  11. Spontaneous Breaking of Flavor Symmetry

    CERN Document Server

    Törnqvist, N A

    1996-01-01

    It is shown that part of the quark masses of the standard model can be generated spontaneously within the strong interactions of QCD. After the breaking of U(Nf) x U(Nf) symmetry by the vacuum, also the resulting flavor symmetric, degenerate meson mass spectrum is shown to be unstable with respect to quantum loops, for rather general models. For a C-degenerate meson spectrum the stable mass spectrum obeys the Okubo-Zweig-Iizuka rule and the approximateequal spacing rule.

  12. From mind wandering to involuntary retrieval: Age-related differences in spontaneous cognitive processes.

    Science.gov (United States)

    Maillet, David; Schacter, Daniel L

    2016-01-01

    The majority of studies that have investigated the effects of healthy aging on cognition have focused on age-related differences in voluntary and deliberately engaged cognitive processes. Yet many forms of cognition occur spontaneously, without any deliberate attempt at engaging them. In this article we review studies that have assessed age-related differences in four such types of spontaneous thought processes: mind-wandering, involuntary autobiographical memory, intrusive thoughts, and spontaneous prospective memory retrieval. These studies suggest that older adults exhibit a reduction in frequency of both mind-wandering and involuntary autobiographical memory, whereas findings regarding intrusive thoughts have been more mixed. Additionally, there is some preliminary evidence that spontaneous prospective memory retrieval may be relatively preserved in aging. We consider the roles of age-related differences in cognitive resources, motivation, current concerns and emotional regulation in accounting for these findings. We also consider age-related differences in the neural correlates of spontaneous cognitive processes. PMID:26617263

  13. Racial variation in the number of spontaneous abortions before a first successful pregnancy, and effects on subsequent pregnancies

    OpenAIRE

    Oliver-Williams, Clare T.; Steer, Philip J

    2015-01-01

    Objective To assess the relationship between race and spontaneous abortion, whether the relationship varies by risk factors, and the effect of spontaneous abortions on subsequent pregnancies. Methods A retrospective study was undertaken using data collected in London, UK, between 1988 and 2000. Logistic regression evaluated histories of spontaneous abortion and associations with small-for-gestational-age and preterm births in black African, black Caribbean, and South Asian women relative to w...

  14. Multifocal osteoblastoma of the hand

    International Nuclear Information System (INIS)

    Osteoblastoma is a benign bone tumor with uncertain radiologic and typical histologic pattern that, in most cases, can be diagnosed without any problems. Usually, it is a solitary bone tumor. The case presented is a 9-year-old child with multiple osteoblastomas occurring in multiple bones of the right hand. The child had pain in his right hand for several weeks. On physical examination, no swelling or other symptoms were elicited. All lesions noted radiologically were treated by curettage, and in all the pattern of osteoblastoma was diagnosed. (orig.)

  15. Lionfish envenomation of the hand.

    Science.gov (United States)

    Patel, M R; Wells, S

    1993-05-01

    Lionfish (Pterois volitans) envenomation of the hand causes excruciating pain and occurs in three grades: (1) erythematous reaction, (2) blister formation, and (3) dermal necrosis. The initial treatment in all cases is to soak the hand in nonscalding water (45 degrees C) until the pain subsides by denaturing the thermolabile venom proteins. The blisters should be immediately excised to prevent dermal necrosis, inasmuch as the blister fluid contains residual active venom. To prevent a hypersensitivity reaction, any further contact with the fish should be avoided. PMID:8515029

  16. Crows spontaneously exhibit analogical reasoning.

    Science.gov (United States)

    Smirnova, Anna; Zorina, Zoya; Obozova, Tanya; Wasserman, Edward

    2015-01-19

    Analogical reasoning is vital to advanced cognition and behavioral adaptation. Many theorists deem analogical thinking to be uniquely human and to be foundational to categorization, creative problem solving, and scientific discovery. Comparative psychologists have long been interested in the species generality of analogical reasoning, but they initially found it difficult to obtain empirical support for such thinking in nonhuman animals (for pioneering efforts, see [2, 3]). Researchers have since mustered considerable evidence and argument that relational matching-to-sample (RMTS) effectively captures the essence of analogy, in which the relevant logical arguments are presented visually. In RMTS, choice of test pair BB would be correct if the sample pair were AA, whereas choice of test pair EF would be correct if the sample pair were CD. Critically, no items in the correct test pair physically match items in the sample pair, thus demanding that only relational sameness or differentness is available to support accurate choice responding. Initial evidence suggested that only humans and apes can successfully learn RMTS with pairs of sample and test items; however, monkeys have subsequently done so. Here, we report that crows too exhibit relational matching behavior. Even more importantly, crows spontaneously display relational responding without ever having been trained on RMTS; they had only been trained on identity matching-to-sample (IMTS). Such robust and uninstructed relational matching behavior represents the most convincing evidence yet of analogical reasoning in a nonprimate species, as apes alone have spontaneously exhibited RMTS behavior after only IMTS training. PMID:25532894

  17. Spontaneous Biliary Peritonitis in Children

    Directory of Open Access Journals (Sweden)

    Supreethi Kohli

    2013-01-01

    Full Text Available Pediatric Spontaneous Bile duct perforation is a rare clinical condition with only around 150 cases reported worldwide. Early management gives excellent prognosis but the condition often presents a diagnostic dilemma. Hepato-biliary Technetium-99m-iminodiacetic acid scintiscan is the diagnostic investigation of choice but its availability in third world countries is limited. We present two cases of spontaneous biliary peritonitis in children, which were diagnosed without scintiscanning. The first case was a one-and -a half-year-old child, who was diagnosed with biliary peritonitis without pneumoperitoneum by a combination of Ultrasound (USG, Contrast enhanced computed tomography (CECT, and Magnetic Resonance Imaging (MRI. The child underwent USG-guided drainage and subsequent cholecystectomy with hepatico-jejunostomy. The second child also had biliary peritonitis without pneumoperitoneum, which was initially suspected on USG. CECT revealed dilated gall bladder and fluid collection in sub-hepatic space and pelvis. Abdominal paracentesis revealed presence of bile. The child responded to conservative therapy. Both are doing well on two-year follow-up. In a patient with jaundice, biliary tract abnormalities and/or free fluid, either generalized or localized to peri-cholecystic/sub-hepatic space on USG/CT/MRI, in the absence of pneumoperitoneum, suggest a diagnosis of biliary perforation even in the absence of scintiscanning.

  18. Spontaneous Intestinal Perforation in Neonates

    Directory of Open Access Journals (Sweden)

    Charu Tiwari

    2015-03-01

    Full Text Available Background: The term Spontaneous Intestinal Perforation (SIP suggests a perforation in the gastrointestinal tract of a newborn with no demonstrable cause.Methods: Four neonates presenting with spontaneous bowel perforation were analyzed with respect to clinical presentation, management and outcome.Results: The mean age at presentation was 11.4 days. There were three males and one female. One of the neonates was preterm, very low birth weight and the other three were full term. Two neonates underwent emergency exploratory laparotomy and two were initially managed by peritoneal drainage in view of poor general condition; one of them improved and did not require further operative intervention. The preterm very low birth weight neonate was stabilized and explored after 48 hours. Intra-operatively, two of them had two ileal perforations each which required ileostomy; one had single perforation in the transverse colon which was primarily repaired. All four had an uneventful recovery.Conclusion: SIP is a distinct clinical entity and has better outcome than neonates with intestinal perforation secondary to Necrotizing Enterocolitis (NEC.

  19. A Case of Multiple Spontaneous Keloid Scars

    Directory of Open Access Journals (Sweden)

    Abdulhadi Jfri

    2015-07-01

    Full Text Available Keloid scars result from an abnormal healing response to cutaneous injury or inflammation that extends beyond the borders of the original wound. Spontaneous keloid scars forming in the absence of any previous trauma or surgical procedure are rare. Certain syndromes have been associated with this phenomenon, and few reports have discussed the evidence of single spontaneous keloid scar, which raises the question whether they are really spontaneous. Here, we present a 27-year-old mentally retarded single female with orbital hypertelorism, broad nasal bridge, repaired cleft lip and high-arched palate who presented with progressive multiple spontaneous keloid scars in different parts of her body which were confirmed histologically by the presence of typical keloidal collagen. This report supports the fact that keloid scars can appear spontaneously and are possibly linked to a genetic factor. Furthermore, it describes a new presentation of spontaneous keloid scars in the form of multiple large lesions in different sites of the body.

  20. Thermally active TRPV1 tonically drives central spontaneous glutamate release

    OpenAIRE

    Shoudai, Kiyomitsu; Peters, James H.; McDougall, Stuart J.; Fawley, Jessica A.; Andresen, Michael C.

    2010-01-01

    Central synapses spontaneously release neurotransmitter at low rates. In brainstem, cranial visceral afferent terminals in caudal solitary tract nucleus (NTS) display pronounced activity-dependent asynchronous release of glutamate and this extra release depends on TRPV1 receptors (TRPV1+). Asynchronous release is absent for afferents lacking TRPV1 (TRPV1-) and resting EPSC frequency was greater in TRPV1+. Here, we studied this basal activity difference by assessing thermal sensitivity of spon...

  1. Spontaneous breathing during anaesthesia: first, do no harm

    OpenAIRE

    2007-01-01

    Controlled respiration and mechanical ventilation have long been part of anaesthetic practice. Modern surgery, anaesthetic techniques, and new agents require a reappraisal of this established habit. In many circumstances the adverse effects of mechanical ventilation can be avoided by the use of the laryngeal mask and allowing spontaneous ventilation. In addition to the more prominent advantages, such as less sore throat, reliable assessment of anaesthetic depth, and good recovery, there may b...

  2. Testing spontaneous localization theories with matter-wave interferometry

    CERN Document Server

    Nimmrichter, Stefan; Haslinger, Philipp; Arndt, Markus

    2011-01-01

    We propose to test the theory of continuous spontaneous localization (CSL) in an all-optical time-domain Talbot-Lau interferometer for clusters with masses exceeding $10^6\\,$amu. By assessing the relevant environmental decoherence mechanisms, as well as the growing size of the particles relative to the grating fringes, we argue that it will be feasible to test the quantum superposition principle in a mass range excluded by recent estimates of the CSL effect.

  3. American Society for Surgery of the Hand

    Science.gov (United States)

    ... Welcome to ASSH.org Home of the American Society for Surgery of the Hand. The American Society for Surgery of the Hand is the oldest and most prestigious medical society dedicated to the hand and upper extremity. Our ...

  4. Why Am I Left-Handed?

    Science.gov (United States)

    ... does since most hitters are right-handed. In basketball and other sports, a left-handed player can ... change in strategy. For instance, a left-handed basketball player will dribble with his or her left ...

  5. Hand, Foot, and Mouth Disease (HFMD)

    Science.gov (United States)

    ... with infected people Commonly Confused With Foot-and-Mouth Disease Hand, foot, and mouth disease is often ... and-Mouth Disease . Outbreaks of Hand, Foot, and Mouth Disease Large outbreaks of hand, foot, and mouth ...

  6. The effect of improved hand hygiene on nosocomial MRSA control

    OpenAIRE

    Marimuthu, Kalisvar; Pittet, Didier; Harbarth, Stephan

    2014-01-01

    The purpose of this review is to examine studies that have assessed the association between hand hygiene enhancement and methicillin-resistant Staphylococcus aureus (MRSA) rates and to explore controversies surrounding this association. Many studies have been published confirming the link between improved hand hygiene compliance and reduction in MRSA acquisition and infections, including bacteremia. These studies have also shown the cost-beneficial nature of these programmes. Despite consider...

  7. Extinction and spontaneous recovery of spatial behavior in pigeons.

    Science.gov (United States)

    Leising, Kenneth J; Wong, Jared; Blaisdell, Aaron P

    2015-10-01

    We investigated extinction and spontaneous recovery of spatial associations using a landmark-based appetitive search task in a touchscreen preparation with pigeons. Four visual landmarks (A, B, C, and D) were separately established as signals of a hidden reinforced target among an 8 × 7 array of potential target locations. The target was located above landmarks (LM) A and C and below B and D. After conditioning, A and B were extinguished. Responding to A and C was assessed on probe tests 2 days following extinction, whereas, B and D were tested 14 days after extinction. We observed spontaneous recovery from spatial extinction following a 14-day, but not a 2-day, postextinction retention interval. Furthermore, by plotting the spatial distribution of responding across the X and Y axes during testing, we found that spontaneous recovery of responding to the target in our task was due to enhanced spatial control (i.e., a change in the overall distribution of responses) following the long delay to testing. These results add spatial extinction and spontaneous recovery to the list of findings supporting the assertion that extinction involves new learning that attenuates the originally acquired response, and that original learning of the spatial relationship between paired events survives extinction. (PsycINFO Database Record PMID:26437383

  8. A natural human hand model

    NARCIS (Netherlands)

    Van Nierop, O.A.; Van der Helm, A.; Overbeeke, K.J.; Djajadiningrat, T.J.P.

    2007-01-01

    We present a skeletal linked model of the human hand that has natural motion. We show how this can be achieved by introducing a new biology-based joint axis that simulates natural joint motion and a set of constraints that reduce an estimated 150 possible motions to twelve. The model is based on obs

  9. Hands-On Nuclear Physics

    Science.gov (United States)

    Whittaker, Jeff

    2013-01-01

    Nuclear science is an important topic in terms of its application to power generation, medical diagnostics and treatment, and national defense. Unfortunately, the subatomic domain is far removed from daily experience, and few learning aids are available to teachers. What follows describes a low-tech, hands-on method to teach important concepts in…

  10. Unusual case of cleft hand

    Directory of Open Access Journals (Sweden)

    Sahasrabudhe Parag

    2007-01-01

    Full Text Available We present a case of a six-year-old male child with cleft hand deformity involving the dominant right hand. It was a rare case of atypical cleft hand with no missing tissue but cleft extending to metacarpal level and associated hypoplasia of thumb and index finger. As per Manske′s classification of cleft hand our patient belongs to the Class III variety. There was associated malposition of the index finger with absence of first web space and syndactly of thumb and index finger at the metacarpal level. A modified Snow-Littler procedure was planned. The surgical plan involved closure of cleft, release of thumb and index finger syndactly and reconstruction of the first web space. The functional outcome was good considering hypoplasia of the index finger and thumb. Depending upon the function of the thumb tendon transfers can be planned to augment thumb function at a later date along with correction of rotational deformities of the index and middle finger.

  11. Spontaneous Ratchet Effect in a Granular Gas

    OpenAIRE

    2003-01-01

    The spontaneous clustering of a vibrofluidized granular gas is employed to generate directed transport in two different compartmentalized systems: a "granular fountain" in which the transport takes the form of convection rolls, and a "granular ratchet" with a spontaneous particle current perpendicular to the direction of energy input. In both instances, transport is not due to any system-intrinsic anisotropy, but arises as a spontaneous collective symmetry breaking effect of many interacting ...

  12. Spontaneous ratchet effect in a granular gas

    OpenAIRE

    Meer, van der, J.; Reimann, Peter; Weele, van, M; Lohse, Detlef

    2004-01-01

    The spontaneous clustering of a vibrofluidized granular gas is employed to generate directed transport in two different compartmentalized systems: a granular fountain in which the transport takes the form of convection rolls, and a granular ratchet with a spontaneous particle current perpendicular to the direction of energy input. In both instances, transport is not due to any systemintrinsic anisotropy, but arises as a spontaneous collective symmetry breaking effect of many interacting granu...

  13. Spontaneous enterocutaneous fistula due to femoral hernia

    OpenAIRE

    Kumar, Awanish; Pahwa, Harvinder Singh; Pandey, Anand; Kumar, Suresh

    2012-01-01

    Spontaneous enterocutaneous fistula is a rare entity. We encountered a case of spontaneous enterocutaneous fistula in the groin region due to femoral hernia. A 60-year-old man presented with spontaneous enterocutaneous fistula in the left groin region without signs of peritonitis. He was kept on conservative treatment, but on third postadmission day, he developed a swelling in his right groin, which became firm and irreducible with signs of intestinal obstruction. On exploratory laparotomy, b...

  14. Basic theory research of coal spontaneous combustion

    Institute of Scientific and Technical Information of China (English)

    WANG Ji-ren; SUN Yan-qiu; ZHAO Qing-fu; DENG Cun-bao; DENG Han-zhong

    2008-01-01

    Discussed latest research results of basic theory research of coal spontaneous combustion in detail, with quantum chemical theory and method and experiment systematically studied chemical structure of coal molecule, adsorption mechanism of coal surface to oxygen molecule and chemical reaction mechanism and process of spontaneous combustion of organic macromolecule and low molecular weight compound in coal from microcosmic view, and established complete theoretical system of the mechanism of coal spontaneous combustion.

  15. Spontaneous pneumothorax in silicotuberculosis of lung

    International Nuclear Information System (INIS)

    The authors describe the case of 62 years old man with the appearance of spontaneous pneumothorax, in whom the basic pulmonary disease was silicotuberculosis of the lung. At clinic of occupational diseases in Kosice have been evidence 965 cases of silicosis and silicotuberculosis. From 1971 they have now the first case of spontaneous pneumothorax. The authors make discussion about possible mechanical and biochemical factors, which cause relatively low incidence of spontaneous pneumothorax in silicosis of the lung. (authors)

  16. Complementary Hand Responses Occur in Both Peri- and Extrapersonal Space.

    Directory of Open Access Journals (Sweden)

    Tim W Faber

    Full Text Available Human beings have a strong tendency to imitate. Evidence from motor priming paradigms suggests that people automatically tend to imitate observed actions such as hand gestures by performing mirror-congruent movements (e.g., lifting one's right finger upon observing a left finger movement; from a mirror perspective. Many observed actions however, do not require mirror-congruent responses but afford complementary (fitting responses instead (e.g., handing over a cup; shaking hands. Crucially, whereas mirror-congruent responses don't require physical interaction with another person, complementary actions often do. Given that most experiments studying motor priming have used stimuli devoid of contextual information, this space or interaction-dependency of complementary responses has not yet been assessed. To address this issue, we let participants perform a task in which they had to mirror or complement a hand gesture (fist or open hand performed by an actor depicted either within or outside of reach. In three studies, we observed faster reaction times and less response errors for complementary relative to mirrored hand movements in response to open hand gestures (i.e., 'hand-shaking' irrespective of the perceived interpersonal distance of the actor. This complementary effect could not be accounted for by a low-level spatial cueing effect. These results demonstrate that humans have a strong and automatic tendency to respond by performing complementary actions. In addition, our findings underline the limitations of manipulations of space in modulating effects of motor priming and the perception of affordances.

  17. Complementary Hand Responses Occur in Both Peri- and Extrapersonal Space.

    Science.gov (United States)

    Faber, Tim W; van Elk, Michiel; Jonas, Kai J

    2016-01-01

    Human beings have a strong tendency to imitate. Evidence from motor priming paradigms suggests that people automatically tend to imitate observed actions such as hand gestures by performing mirror-congruent movements (e.g., lifting one's right finger upon observing a left finger movement; from a mirror perspective). Many observed actions however, do not require mirror-congruent responses but afford complementary (fitting) responses instead (e.g., handing over a cup; shaking hands). Crucially, whereas mirror-congruent responses don't require physical interaction with another person, complementary actions often do. Given that most experiments studying motor priming have used stimuli devoid of contextual information, this space or interaction-dependency of complementary responses has not yet been assessed. To address this issue, we let participants perform a task in which they had to mirror or complement a hand gesture (fist or open hand) performed by an actor depicted either within or outside of reach. In three studies, we observed faster reaction times and less response errors for complementary relative to mirrored hand movements in response to open hand gestures (i.e., 'hand-shaking') irrespective of the perceived interpersonal distance of the actor. This complementary effect could not be accounted for by a low-level spatial cueing effect. These results demonstrate that humans have a strong and automatic tendency to respond by performing complementary actions. In addition, our findings underline the limitations of manipulations of space in modulating effects of motor priming and the perception of affordances. PMID:27120470

  18. Fog spontaneously folds mosquito wings

    Science.gov (United States)

    Dickerson, Andrew K.; Liu, Xing; Zhu, Ting; Hu, David L.

    2015-02-01

    The flexibility of insect wings confers aerodynamic benefits, but can also present a hazard if exposed to fog or dew. Fog can cause water to accumulate on wings, bending them into tight taco shapes and rendering them useless for flight. In this combined experimental and theoretical study, we use high-speed video to film the spontaneous folding of isolated mosquito wings due to the evaporation of a water drop. We predict shapes of the deformed wing using two-dimensional elastica theory, considering both surface tension and Laplace pressure. We also recommend fold-resistant geometries for the wings of flapping micro-aerial vehicles. Our work reveals the mechanism of insect wing folding and provides a framework for further study of capillarity-driven folding in both natural and biomimetic systems at small scales.

  19. Spontaneous Emotional Facial Expression Detection

    Directory of Open Access Journals (Sweden)

    Zhihong Zeng

    2006-08-01

    Full Text Available Change in a speaker’s emotion is a fundamental component in human communication. Automatic recognition of spontaneous emotion would significantly impact human-computer interaction and emotion-related studies in education, psychology and psychiatry. In this paper, we explore methods for detecting emotional facial expressions occurring in a realistic human conversation setting—the Adult Attachment Interview (AAI. Because non-emotional facial expressions have no distinct description and are expensive to model, we treat emotional facial expression detection as a one- class classification problem, which is to describe target objects (i.e., emotional facial expressions and distinguish them from outliers (i.e., non-emotional ones. Our preliminary experiments on AAI data suggest that one-class classification methods can reach a good balance between cost (labeling and computing and recognition performance by avoiding non-emotional expression labeling and modeling.

  20. Cosmological Aspects of Spontaneous Baryogenesis

    CERN Document Server

    De Simone, Andrea

    2016-01-01

    We investigate cosmological aspects of spontaneous baryogenesis driven by a scalar field, and present general constraints that are independent of the particle physics model. The relevant constraints are obtained by studying the backreaction of the produced baryons on the scalar field, the cosmological expansion history after baryogenesis, and the baryon isocurvature perturbations. We show that cosmological considerations alone provide powerful constraints, especially for the minimal scenario with a quadratic scalar potential. Intriguingly, we find that for a given inflation scale, the other parameters including the reheat temperature, decoupling temperature of the baryon violating interactions, and the mass and decay constant of the scalar are restricted to lie within ranges of at most a few orders of magnitude. We also discuss possible extensions to the minimal setup, and propose two ideas for evading constraints on isocurvature perturbations: one is to suppress the baryon isocurvature with nonquadratic scal...

  1. Spontaneous polaron transport in biopolymers

    Science.gov (United States)

    Chakrabarti, B.; Piette, B. M. A. G.; Zakrzewski, W. J.

    2012-02-01

    Polarons, introduced by Davydov to explain energy transport in α-helices, correspond to electrons localised on a few lattice sites because of their interaction with phonons. While the static polaron field configurations have been extensively studied, their displacement is more difficult to explain. In this paper we show that, when the next-to-nearest-neighbour interactions are included, for physical values of the parameters, polarons can spontaneously move, at T=0, on bent chains that exhibit a positive gradient in their curvature. At room temperature polarons perform a random walk but a curvature gradient can induce a non-zero average speed similar to the one observed at zero temperature. We also show that, at zero temperature, a polaron bounces on sharply kinked junctions. We interpret these results in the light of the energy transport by transmembrane proteins.

  2. Spontaneous onset of atrial fibrillation

    Science.gov (United States)

    Zemlin, Christian W.; Mitrea, Bogdan G.; Pertsov, Arkady M.

    2009-06-01

    Most commonly, atrial fibrillation is triggered by rapid bursts of electrical impulses originating in the myocardial sleeves of pulmonary veins (PVs). However, the nature of such bursts remains poorly understood. Here, we propose a mechanism of bursting consistent with the extensive empirical information about the electrophysiology of the PVs. The mechanism is essentially non-local and involves the spontaneous initiation of non-sustained spiral waves in the distal end of the muscle sleeves of the PVs. It reproduces the experimentally observed dynamics of the bursts, including their frequency, their intermittent character, and the unusual shape of the electrical signals in the pulmonary veins that are reminiscent of so-called early afterdepolarizations (EADs).

  3. Spontaneous Emission in Nonlocal Materials

    CERN Document Server

    Ginzburg, Pavel; Nasir, Mazhar E; Olvera, Paulina Segovia; Krasavin, Alexey V; Levitt, James; Hirvonen, Liisa M; Wells, Brian; Suhling, Klaus; Richards, David; Podolskiy, Viktor A; Zayats, Anatoly V

    2016-01-01

    Light-matter interactions can be dramatically modified by the surrounding environment. Here we report on the first experimental observation of molecular spontaneous emission inside a highly nonlocal metamaterial based on a plasmonic nanorod assembly. We show that the emission process is dominated not only by the topology of its local effective medium dispersion, but also by the nonlocal response of the composite, so that metamaterials with different geometric parameters but the same local effective medium properties exhibit different Purcell factors. A record-high enhancement of a decay rate is observed, in agreement with the developed quantitative description of the Purcell effect in a nonlocal medium. An engineered material nonlocality introduces an additional degree of freedom into quantum electrodynamics, enabling new applications in quantum information processing, photo-chemistry, imaging, and sensing.

  4. 脑梗死后自发性出血转化及其影像学评价%Spontaneous Hemorrhagic Transformation After Cerebral Infarction and Its Imaging Assessment

    Institute of Scientific and Technical Information of China (English)

    杨飞; 刘怀军; 杨冀萍

    2008-01-01

    The research of hemorrhagic transformation (HT) after cerebral infarction is now focus on HT after thrombolytic therapy. However, attention should also be aroused to the occurrence of spontaneous HT in most patients who cannot receive thrombolysis promptly because of various reasons, for it has important influence on the treatment of cerebral infarction and prognosis. This article reviews the concept, typing, pathogenesis, correlation factors, imaging diagnosis and prediction of HT, as well as the effects of non-thrombolytic therapies on HT, such as antiplatelet, defibrase, anticoagulant, anti-free radical, and the relations between HT typing and prognosis.%脑梗死后出血性转化(HT)的研究目前多关注于溶栓治疗后HT.但是,对大多数因各种原因未能及时行溶栓治疗而发生的自发性HT亦应引起关注,因其对脑梗死的治疗和预后具有重要影响.文章对HT的概念、分型、发病机制、相关因素、影像学诊断和预测,以及抗血小板、降纤、抗凝、抗自由基等非溶栓疗法对HT的影响,HT分型与预后的关系等进行了综述.

  5. Matrine ameliorates spontaneously developed colitis in interleukin-10-deficient mice.

    Science.gov (United States)

    Wu, Cong; Xu, Zheng; Gai, Renhua; Huang, Kehe

    2016-07-01

    Interleukin-10 (IL-10)-deficient mice spontaneously develop T cell-mediated colitis. Previous reports have shown that Matrine may reduce the symptoms of acute colitis induced by trinitrobenzene sulfonic acid (TNBS). However, whether Matrine impacts chronic colitis remains unknown. In this study, we investigated whether Matrine could limit the symptoms of spontaneously developed colitis and its potential molecular mechanisms. IL-10 deficient mice were given Matrine or a PBS control by oral gavage daily for 4weeks and were euthanized at week 2 or week 4. We measured body weight, colon length and weight, and histological scores. We also evaluated the spontaneous secretion of IL-12/23p40, IFN-γ and IL-17 in colon explant cultures as well as IFN-γ and IL-17 secretion in unseparated mesenteric lymph node (MLN) cells, and assessed IFN-γ, IL-17, IL-1β and IL-6 mRNA expression in colon tissue. In addition, we analyzed the proportions of CD4-positive and CD8-positive cells in unseparated MLN cells. Our results show that Matrine-treated mice exhibited better body weight recovery than controls and that histological scores and spontaneously secreted IL-12/23p40, IFN-γ and IL-17 in colon tissue were significantly decreased in treated mice compared with controls. The proportion of CD4-positive cells of MLNs in treated mice was significantly smaller than that in controls at week 4. Both cytokine production and mRNA expression of IFN-γ and IL-17 were significantly reduced in treated mice compared with controls. Taken together, our results indicate that Matrine may ameliorate spontaneously developed chronic colitis and could be considered as a therapeutic alternative for chronic colitis. PMID:27179305

  6. Argan (Argania spinosa) oil lowers blood pressure and improves endothelial dysfunction in spontaneously hypertensive rats.

    Science.gov (United States)

    Berrougui, Hicham; Alvarez de Sotomayor, Maria; Pérez-Guerrero, Concepción; Ettaib, Abdelkader; Hmamouchi, Mohamed; Marhuenda, Elisa; Herrera, Maria Dolores

    2004-12-01

    Traditionally hand-pressed argan oil, obtained from Argania spinosa seeds, is eaten raw in south-west Morocco; its rich composition of tocopherols, MUFA and PUFA make a study of its actions on risk factors for CVD, such as hypertension, interesting. The effects of 7 weeks of treatment with argan oil (10 ml/kg) on the blood pressure and endothelial function of spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats were investigated. Systolic blood pressure and heart rate were measured every week by the tail-cuff method and endothelial function was assessed by carbachol (10(-8) to 10(-4) M)-induced relaxations of aortic rings and small mesenteric arteries pre-contracted with phenylephrine. Argan-oil administration reduced the mean blood pressure of SHR after the fifth week of treatment (Pargan-oil treatment of SHR. Experiments in the presence of the thromboxane A2-prostaglandin H2 receptor antagonist ICI 192,605 (10(-5) M) confirmed this result. Results after incubation with the antioxidants superoxide dismutase and catalase suggested that a decreased oxidative stress might contribute to explain the beneficial effects of argan-oil treatment. PMID:15613254

  7. Hand kinematics of piano playing.

    Science.gov (United States)

    Furuya, Shinichi; Flanders, Martha; Soechting, John F

    2011-12-01

    Dexterous use of the hand represents a sophisticated sensorimotor function. In behaviors such as playing the piano, it can involve strong temporal and spatial constraints. The purpose of this study was to determine fundamental patterns of covariation of motion across joints and digits of the human hand. Joint motion was recorded while 5 expert pianists played 30 excerpts from musical pieces, which featured ∼50 different tone sequences and fingering. Principal component analysis and cluster analysis using an expectation-maximization algorithm revealed that joint velocities could be categorized into several patterns, which help to simplify the description of the movements of the multiple degrees of freedom of the hand. For the thumb keystroke, two distinct patterns of joint movement covariation emerged and they depended on the spatiotemporal patterns of the task. For example, the thumb-under maneuver was clearly separated into two clusters based on the direction of hand translation along the keyboard. While the pattern of the thumb joint velocities differed between these clusters, the motions at the metacarpo-phalangeal and proximal-phalangeal joints of the four fingers were more consistent. For a keystroke executed with one of the fingers, there were three distinct patterns of joint rotations, across which motion at the striking finger was fairly consistent, but motion of the other fingers was more variable. Furthermore, the amount of movement spillover of the striking finger to the adjacent fingers was small irrespective of the finger used for the keystroke. These findings describe an unparalleled amount of independent motion of the fingers. PMID:21880938

  8. Tools used for hand deburring

    Energy Technology Data Exchange (ETDEWEB)

    Gillespie, L.K.

    1981-03-01

    This guide is designed to help in quick identification of those tools most commonly used to deburr hand size or smaller parts. Photographs and textual descriptions are used to provide rapid yet detailed information. The data presented include the Bendix Kansas City Division coded tool number, tool description, tool crib in which the tool can be found, the maximum and minimum inventory requirements, the cost of each tool, and the number of the illustration that shows the tool.

  9. Ultra-weak photon emission of hands in aging prediction.

    Science.gov (United States)

    Zhao, Xin; van Wijk, Eduard; Yan, Yu; van Wijk, Roeland; Yang, Huanming; Zhang, Yan; Wang, Jian

    2016-09-01

    Aging has been one of the several topics intensely investigated during recent decades. More scientists have been scrutinizing mechanisms behind the human aging process. Ultra-weak photon emission is known as one type of spontaneous photon emission that can be detected with a highly sensitive single photon counting photomultiplier tube (PMT) from the surface of human bodies. It may reflect the body's oxidative damage. Our aim was to examine whether ultra-weak photon emission from a human hand is able to predict one's chronological age. Sixty subjects were recruited and grouped by age. We examined four areas of each hand: palm side of fingers, palm side of hand, dorsum side of fingers, and dorsum side of hand. Left and right hand were measured synchronously with two independent PMTs. Mean strength and Fano factor values of photon counts were utilized to compare the UPE patterns of males and females of different age groups. Subsequently, we utilized UPE data from the most sensitive PMT to develop an age prediction model. We randomly picked 49 subjects to construct the model, whereas the remaining 11 subjects were utilized for validation. The results demonstrated that the model was a good regression compared to the observed values (Pearson's r=0.6, adjusted R square=0.4, p=9.4E-7, accuracy=49/60). Further analysis revealed that the average difference between the chronological age and predicted age was only 7.6±0.8years. It was concluded that this fast and non-invasive photon technology is sufficiently promising to be developed for the estimation of biological aging. PMID:27472904

  10. Incidences of asymmetries for the palmar grasp reflex in neonates and hand preference in adults

    OpenAIRE

    Tan, Uner; Tan, Meliha

    1999-01-01

    It was hypothesized that adult handedness might be predicted from the neonatal grasp reflex. Grasp reflex was measured from right and left hand (10 trials for each hand) in neonates. According to significance for the difference between the mean grasp reflex strength from the right and left hands, the subjects were designated as right-, left-, and mixed-handers. Adult hand preference was assessed by Edinburgh Handedness Inventory. The percentage of left-handedness (8.3%) in neonates coincided ...

  11. Spontaneously occurring images and early memories in people with body dysmorphic disorder

    OpenAIRE

    Osman, Selen; Cooper, Myra; Hackmann, Ann; Veale, David

    2004-01-01

    A semi-structured interview assessing the presence and characteristics of spontaneous appearance-related images was designed and administered. A total of 18 patients with body dysmorphic disorder (BDD) and 18 normal controls took part. The BDD patients were found to have spontaneously occurring appearance-related images that were significantly more negative, recurrent, and viewed from an observer perspective than control participants. These images were more vivid and detailed and typically in...

  12. The hands of the projectionist.

    Science.gov (United States)

    Cartwright, Lisa

    2011-09-01

    This essay considers the work of projection and the hand of the projectionist as important components of the social space of the cinema as it comes into being in the nineteenth century and the early decades of the twentieth. I bring the concept ofMaurice Merleau-Ponty on the place of the body as an entity that applies itself to the world "like a hand to an instrument" into a discussion of the pre-cinematic projector as an instrument that we can interpret as evidence of the experience of the work of the projectionist in the spirit of film theory and media archaeology, moving work on instrumentation in a different direction from the analysis of the work of the black box in laboratory studies. Projection is described as a psychological as well as a mechanical process. It is suggested that we interpret the projector not simply in its activity as it projects films, but in its movement from site to site and in the workings of the hand of its operator behind the scenes. This account suggests a different perspective on the cinematic turn of the nineteenth century, a concept typically approached through the study of the image, the look, the camera, and the screen. PMID:21995224

  13. Laterality of hand function in naturalistically housed chimpanzees (Pan troglodytes).

    Science.gov (United States)

    Fletcher, Alison W; Weghorst, Jennifer A

    2005-05-01

    Studies of laterality of hand function in chimpanzees (Pan troglodytes) have the potential to tell us about the origins of handedness in Homo sapiens. However, the data are confusing, with discrepancies present between studies done in the field and the laboratory: the former show wild chimpanzees to be unlateralised at the population level, while the latter show captive chimpanzees as lateralised at the population level. This study of 26 semi-free ranging chimpanzees of Chester Zoo, UK, aimed to investigate a situation between the wild and captivity and provided ethological data for 43 categories of spontaneous manual use and 14 categories of tool use. Other variables recorded were subordinate hand activity, whether the subject was arboreal or terrestrial, and the identity of the subject. Using switching focal subject sampling, 23,978 bouts of hand use and 1,090 bouts of tool use were recorded. No population-level handedness was present for manual non-tool use activities in the naturalistically housed chimpanzees of Chester Zoo in a similar way to studies of wild chimpanzees. However, about half of the individuals were lateralised to one side or the other for the foraging behaviours of pick up, eat, and pluck. Using a modified version of McGrew and Marchant's (1997) Laterality Framework, these results are comparable to some wild and captive populations for similar foraging tasks. Bimanuality was rare and thus prevented comparison with captive experimental studies that have reported population right handedness. Behaviour involving contact with water elicited stronger lateralisation. Chester chimpanzees were more likely to exhibit hand preferences for manual tasks with increasing age but there were no effects of sex or rearing history on hand specialisations in adult individuals. Lateralisation was biased in tool use, which evoked significant left hand preferences in half the individuals, with no effect of age. Results are discussed comparatively with reference to

  14. A new class of spontaneously polarized materials

    DEFF Research Database (Denmark)

    Field, David; Plekan, Oksana; Cassidy, Andrew;

    2011-01-01

    Very large electric fields form spontaneously within films of seemingly prosaic chemicals such as nitrous oxide or propane.We describe how the discovery of this unexpected phenomenon took place and how we attempt to understand the nature of the new class of spontaneously polarized materials...

  15. Primary Spontaneous Bilateral Pneumothorax in a Neonate

    OpenAIRE

    Kamaldeep Arora; Shasanka Shekhar Panda; Rashmi Ranjan Das; Pankaj Kumar Mohanty; Meely Panda

    2014-01-01

    Pneumothorax, though rare, is a recognized cause of respiratory distress in the immediate newborn period. It may occur spontaneously or secondary to various underlying lung diseases. Here we share our experience of a neonate with spontaneous pneumothorax with mild to moderate respiratory distress, who recovered completely with conservative management with an oxygen-enriched atmosphere and no surgical intervention.

  16. Spontaneous pneumothorax caused by metastatic hemangioendothelioma

    International Nuclear Information System (INIS)

    A patient with hemangioendothelioma is described, who developed a metastatic pulmonary nodule, subsequently a bollous lesion contiguous to the nodule, and finally spontaneous pneumothorax. In such cases, newly formed bullous lesions may conceal originally visible metastatic foci and can be a potential source of spontaneous pneumothorax. (orig.)

  17. Cooperative spontaneous emission in nonuniform media

    OpenAIRE

    Rudziński, Adam

    2010-01-01

    The subject of this paper is modification of cooperative spontaneous emission by a nonuniform medium, with nonuniform distributions of electromagnetic field. A brief analyzis is presented and it is postulated, that if spontaneous emission from an atom is strongly suppressed, cooperative emission with another atom may be a preferred emission channel and counteract the suppression.

  18. Simultaneous and spontaneous bilateral quadriceps tendons rupture.

    Science.gov (United States)

    Celik, Evrim Coşkun; Ozbaydar, Mehmet; Ofluoglu, Demet; Demircay, Emre

    2012-07-01

    Simultaneous and spontaneous bilateral quadriceps tendon rupture is an uncommon injury that is usually seen in association with multiple medical conditions and some medications. We report a case of simultaneous and spontaneous bilateral quadriceps tendon rupture that may be related to the long-term use of a statin. PMID:22561379

  19. Spontaneous pneumomediastinum: A complication of swine flu.

    Science.gov (United States)

    Padhy, Ajit Kumar; Gupta, Anubhav; Aiyer, Palash; Jhajhria, Narender Singh; Grover, Vijay; Gupta, Vijay Kumar

    2015-10-01

    The occurrence of spontaneous pneumomediastinum in swine flu, or H1N1 influenza A infection, is a rare phenomenon and only few cases have been reported in children. We describe a case of spontaneous pneumomediastinum in adult infected with swine flu. PMID:25939913

  20. Primary Spontaneous Bilateral Pneumothorax in a Neonate

    Directory of Open Access Journals (Sweden)

    Kamaldeep Arora

    2014-09-01

    Full Text Available Pneumothorax, though rare, is a recognized cause of respiratory distress in the immediate newborn period. It may occur spontaneously or secondary to various underlying lung diseases. Here we share our experience of a neonate with spontaneous pneumothorax with mild to moderate respiratory distress, who recovered completely with conservative management with an oxygen-enriched atmosphere and no surgical intervention.

  1. Spontaneous fission properties and lifetime systematics

    International Nuclear Information System (INIS)

    Half-lives for spontaneous fission of nuclides with even and odd numbers of particles are compared with recent theoretical calculations. A summary of odd particle hindrance factors is given. The most recent measurements of kinetic-energy and mass distributions and neutron emission for spontaneous fission of the heaviest nuclides are summarized and discussed. 51 refs., 9 figs

  2. Human hand modelling: kinematics, dynamics, applications

    NARCIS (Netherlands)

    Gustus, A.; Stillfried, G.; Visser, J.; Jörntell, H.; Van der Smagt, P.

    2012-01-01

    An overview of mathematical modelling of the human hand is given. We consider hand models from a specific background: rather than studying hands for surgical or similar goals, we target at providing a set of tools with which human grasping and manipulation capabilities can be studied, and hand funct

  3. Urunana Audiences at Home and Away: Together 'Hand in Hand'?

    OpenAIRE

    Hintjens, Helen; Bayisenge, F.

    2011-01-01

    textabstractUrunana (‘Hand in Hand’) is Rwanda’s first radio soap opera. The production emerged during the late 1990s from a three-way transnational production partnership between: The Great Lakes section of the BBC World Service; the Well Woman Media Project of the London-based NGO, Health Unlimited; and a group of dramatists and broadcasters working in Rwanda. Broadcast by the BBC World Service, the production was initially produced and edited by Health Unlimite. It is now produced by the U...

  4. Audit of hand hygiene at Broadmoor, a high secure psychiatric hospital.

    Science.gov (United States)

    Ahmed, K

    2010-06-01

    Increased security measures at high secure psychiatric hospitals can complicate hand hygiene. This audit assessed the availability of appropriate hand hygiene equipment and the practice of good hand hygiene at Broadmoor Hospital using the local hand hygiene policy as the standard for comparison. A data collection tool used to audit the hand hygiene equipment on 23 wards in the hospital showed that there were significant deficits in the supply of hand hygiene equipment on the wards. In addition, a staff survey was conducted using a questionnaire designed to assess awareness, training and hand decontamination practice among nursing staff. This survey identified a need to increase awareness of the hand hygiene policy and the appropriate timing of hand decontamination procedures. As a result of the audit, appropriate equipment was ordered and the duties of infection prevention link nurses on each ward were made more explicit; namely, to check and order equipment for hand hygiene as necessary, to conduct regular reminder sessions of the hand decontamination procedure and to raise awareness of hand hygiene policy. Posters were also placed on wards in patient areas to increase awareness of hand hygiene among patients, and alcohol gel dispensers were introduced into nursing stations. Similar audits may prove beneficial at other psychiatric hospitals. PMID:20304525

  5. HAND OSTEOARTHROSIS: ON THE QUALITY OF LIFE AND AESTHETIC DISCOMFORT

    Directory of Open Access Journals (Sweden)

    Anastasia Viktorovna Sarapulova

    2013-01-01

    Full Text Available Osteoarthrosis (OA is one of the most common causes of hand pains, leading to lower quality of life (QL. In addition to pain and functional impairment, the patients' aesthetic dissatisfaction that cannot be now determined or measuredis of prime importanceObjective: to assess a number of QL aspects and to measure the level of aesthetic discomfort in patients with hand OA.Subjects and methods. Sixty women aged 45–75 years with hand OA were included. The number of painful and deformed joints was determined and functional impairments were evaluated using the AUSCAN questionnaire. The patients filled out the questionnaire to determine the level of dissatisfaction with the appearance of their hands; the Ellis stress test for irrational beliefs was carried out.Results. The patients with hand OA were found to have significant aesthetic discomfort comparable with level of joint pain. Deformity phobia in the future and external discomfort because of hand deformity were most pronounced; a wish for surgical correction was less pronounced. Comparison of the results obtained in different age groups determined the highest levels of anxiety and wish for surgical correction in younger women. The patients' aesthetic dissatisfaction was also influenced by employment and internet usage.Conclusion. Aesthetic discomfort is an important component of lower QL in patients with hand OA. Further investigation of this factor and elaboration of criteria for its estimation are needed.

  6. Fuzzy rule-based hand gesture recognition

    OpenAIRE

    Bedregal, Benjamín C.; Costa, Antônio Carlos da Rocha; Dimuro, Graçaliz P.

    2006-01-01

    This paper introduces a fuzzy rule-based method for the recognition of hand gestures acquired from a data glove, with an application to the recognition of some sample hand gestures of LIBRAS, the Brazilian Sign Language. The method uses the set of angles of finger joints for the classification of hand configurations, and classifications of segments of hand gestures for recognizing gestures. The segmentation of gestures is based on the concept of monotonic gesture segment, sequences of hand co...

  7. Effects of thalamic deep brain stimulation on spontaneous language production.

    Science.gov (United States)

    Ehlen, Felicitas; Vonberg, Isabelle; Kühn, Andrea A; Klostermann, Fabian

    2016-08-01

    The thalamus is thought to contribute to language-related processing, but specifications of this notion remain vague. An assessment of potential effects of thalamic deep brain stimulation (DBS) on spontaneous language may help to delineate respective functions. For this purpose, we analyzed spontaneous language samples from thirteen (six female / seven male) patients with essential tremor treated with DBS of the thalamic ventral intermediate nucleus (VIM) in their respective ON vs. OFF conditions. Samples were obtained from semi-structured interviews and examined on multidimensional linguistic levels. In the VIM-DBS ON condition, participants used a significantly higher proportion of paratactic as opposed to hypotactic sentence structures. This increase correlated negatively with the change in the more global cognitive score, which in itself did not change significantly. In conclusion, VIM-DBS appears to induce the use of a simplified syntactic structure. The findings are discussed in relation to concepts of thalamic roles in language-related cognitive behavior. PMID:27267813

  8. Strategy and your stronger hand.

    Science.gov (United States)

    Moore, Geoffrey A

    2005-12-01

    There are two kinds of businesses in the world, says the author. Knowing what they are--and which one your company is--will guide you to the right strategic moves. One kind includes businesses that compete on a complex-systems model. These companies have large enterprises as their primary customers. They seek to grow a customer base in the thousands, with no more than a handful of transactions per customer per year (indeed, in some years there may be none), and the average price per transaction ranges from six to seven figures. In this model, 1,000 enterprises each paying dollar 1 million per year would generate dollar 1 billion in annual revenue. The other kind of business competes on a volume-operations model. Here, vendors seek to acquire millions of customers, with tens or even hundreds of transactions per customer per year, at an average price of relatively few dollars per transaction. Under this model, it would take 10 million customers each spending dollar 8 per month to generate nearly dollar 1 billion in revenue. An examination of both models shows that they could not be further apart in their approach to every step along the classic value chain. The problem, though, is that companies in one camp often attempt to create new value by venturing into the other. In doing so, they fail to realize how their managerial habits have been shaped by the model they've grown up with. By analogy, they have a "handedness"--the equivalent of a person's right- or left-hand dominance--that makes them as adroit in one mode as they are awkward in the other. Unless you are in an industry whose structure forces you to attempt ambidexterity (in which case, special efforts are required to manage the inevitable dropped balls), you'll be far more successful making moves that favor your stronger hand. PMID:16334582

  9. The fraction of total hand surface area involved in young children's outdoor hand-to-object contacts

    International Nuclear Information System (INIS)

    Information on the fraction of total hand surface area touching a contaminated object is necessary in accurately estimating contaminant (e.g., pesticides, pathogens) loadings onto the hands during hand-to-object contacts. While several existing physical-stochastic human exposure models require such surface area data to estimate dermal and non-dietary ingestion exposure, there are very limited data sets. This paper provides statistical distributions of fractional surface areas (FSAs) for children's outdoor hand contacts. These distributions were constructed by combining information collected from two distinct studies exploring children's activity patterns and quantifying hand contact surface area. Results show that for outdoor contacts with 'All Objects', a range of 0.13-0.27 captured median FSAs, while a range of 0.12-0.24 captured time-weighted FSAs. Overall, an FSA of 0.31 captured 80-100% of FSAs involved in each child's outdoor hand contacts, depending upon the object of interest. These values are much lower than the often conservative assumptions of up to 1 (i.e., the entire hand) that researchers currently make regarding FSAs involved in indoor and outdoor contacts [USEPA, 1997. Standard operating procedures (SOPs) for residential exposure assessments. Contract no. 68-W6-0030.

  10. Spontaneous gestures during mental rotation tasks: Insights into the microdevelopment of the motor strategy

    OpenAIRE

    Chu, M; Kita, S.

    2008-01-01

    This study investigated the motor strategy involved in mental rotation tasks by examining 2 types of spontaneous gestures (hand–object interaction gestures, representing the agentive hand action on an object, vs. object-movement gestures, representing the movement of an object by itself) and different types of verbal descriptions of rotation. Hand–object interaction gestures were produced earlier than object-movement gestures, the rate of both types of gestures decreased, and gestures became ...

  11. Hand modulation of visual, preparatory, and saccadic activity in the monkey frontal eye field.

    Science.gov (United States)

    Thura, David; Hadj-Bouziane, Fadila; Meunier, Martine; Boussaoud, Driss

    2011-04-01

    Behavioral studies have shown that hand position influences saccade characteristics. This study examined the neuronal changes that could underlie this behavioral observation. Single neurons were recorded in the frontal eye field (FEF) of 2 monkeys as they executed a visually guided saccade task, while holding their hand at given locations on a touch screen. The task was performed with the hand either visible or invisible, in order to assess the relative contribution of visual and proprioceptive information on hand position. Among the 224 neurons tested, the visual, saccadic and/or preparatory activity of more than half of them was modulated by hand position, whether the hand was visible or invisible. Comparison of lower (hand's workspace) and upper (out of reach) visual targets showed that hand modulation was predominant in the hand's workspace. Finally, some cells preferred congruency of hand and target in space, others preferred incongruency. Interestingly, hand modulation of saccadic activity correlated with hand position effects on saccade reaction times. We conclude that visual and proprioceptive signals derived from the hand are integrated by FEF neurons. These signals can modulate target selection through attention and allow the oculomotor system to use hand-related somatosensory signals for the initiation of visually guided saccades. PMID:20713503

  12. Sonography of pathological changes in the hand.

    Science.gov (United States)

    Dębek, Anna; Czyrny, Zbigniew; Nowicki, Paweł

    2014-03-01

    Everyday medical practice shows that most common problems within the hand result from overload, injuries and degeneration. Dorsal side pathologies such as de Quervain's and Wartenberg's disease, intersection syndrome or degenerative lesions of carpometa-carpal joint of the thumb discussed in the paper can be accurately diagnosed and differentiated by means of ultrasound examination. Ultrasound is similarly powerful in detection and grading of traumatic lesions involving extensor tendons and their sagittal bands or the flexor tendons and their pulleys. In the case of carpal tunnel syndrome one can not only visualize the median nerve but also other structures of the tunnel that may cause compression. Similarly ulnar nerve compression within the Guyon's canal can be well evaluated. In cases of nerve trauma one can precisely define the level, and in cases of nerve discontinuity, the distance between stumps can be measured which is important in surgery planning. Often nerve trauma is a sequelae of tendon reconstruction. In such cases scars and nerve entrapment can be depicted. Tumors within a hand are usually benign, of which the most common are ganglia. On ultrasound examination a connection between a ganglion and its source (usually a joint or sheath) can frequently be defined. The relationship of tumors to nerves, tendon sheaths or vessels may suggest their nature. Ultrasound with dynamic tissue assessment is a very valuable adjunct to clinical examination. PMID:26675521

  13. Spontaneous Retropharyngeal and Mediastinal Emphysema.

    Science.gov (United States)

    Cho, Do-Yeon; Aaron, Geoffrey P; Shepard, Kimberly G

    2016-06-01

    A 14-year-old girl with no significant medical history presented at Emergency Department with sore throat and odynophagia after one episode of nonviolent coughing. She denied any respiratory distress, voice change, foreign body ingestion, retching, substance abuse, dental procedures, or trauma. She was afebrile with normal oxygen saturation and physical examination including the head and neck was unremarkable with the exception of bilateral neck crepitus without tenderness on palpation. Fiberoptic laryngoscopy revealed a patent laryngeal airway with normal vocal fold movement. Lateral neck X-ray demonstrated a linear air-column in the retropharyngeal space and computed tomography confirmed emphysema involving the retropharyngeal space and mediastinum with no evidence of fluid collection or abscess formation. Spontaneous retropharyngeal and mediastinal emphysema are clinical entities where free air is present within the confines of retropharyngeal space and mediastinum without obvious cause. It is benign and self-limited in nature and allows for conservative management. This case is presented with a review of literature. PMID:27090269

  14. Bilateral spontaneous hemotympanum: Case report

    Directory of Open Access Journals (Sweden)

    Economou Nicolas C

    2006-10-01

    Full Text Available Abstract Background The most common causes of hemotympanum are therapeutic nasal packing, epistaxis, blood disorders and blunt trauma to the head. Hemotympanum is characterized as idiopathic, when it is detected in the presence of chronic otitis media. A rare case of spontaneous bilateral hemotympanum in a patient treated with anticoagulants is presented herein. Case presentation A 72-year-old male presented with acute deterioration of hearing. In the patient's medical history aortic valve replacement 1 year before presentation was reported. Since then he had been administered regularly coumarinic anticoagulants, with INR levels maintained between 3.4 and 4.0. Otoscopy revealed the presence of bilateral hemotympanum. The audiogram showed symmetrical moderately severe mixed hearing loss bilaterally, with the conductive component predominating. Tympanograms were flat bilaterally with absent acoustic reflexes. A computerized tomography scan showed the presence of fluid in the mastoid and middle ear bilaterally. Treatment was conservative and consisted of a 10-day course of antibiotics, anticongestants and temporary interruption of the anticoagulant therapy. After 3 weeks, normal tympanic membranes were found and hearing had returned to previous levels. Conclusion Anticoagulant intake should be included in the differential diagnosis of hemotympanum, because its detection and appropriate treatment may lead to resolution of the disorder.

  15. Spontaneous pneumomediastinum: Time for consensus

    Directory of Open Access Journals (Sweden)

    Sonu Sahni

    2013-01-01

    Full Text Available Pneumomediastinum (PM is defined as the presence of free air in the mediastinal cavity. It is often regarded as a revealing sign of a more serious medical condition. PM is broken down into two categories, one, with an instigating event, referred to as secondary PM. The other is when free air is discovered in the mediastinal cavity without a clear etiology, referred to as spontaneous pneumomediastinum (SPM. Often misdiagnosed due to the vague nature of presenting symptoms, SPM must be part of the differential diagnosis of a chest pain patient to expedite discovery and if necessary, management. A MedLine/PubMED search was performed identifying all relevant articles with "SPM" in the title. Six case series were reviewed to determine what clinical scenario constitutes a possible case of SPM. Results showed that almost all patients with SPM exhibited some chest pain, but Hamman′s crunch was present in only one-fifth of patients. Patients with certain pre-existing pulmonary diseases showed a greater propensity for the presence of free air in the mediastinal cavity. SPM must be diagnosed and managed promptly due to rare, but serious complications and any chest pain with an unknown etiology should contain SPM in the differential diagnosis.

  16. Radiologic study of spontaneous pneumothorax

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, Oh Cheung; Chung, Jin Heung; Rhee, Byung Chull [Chungnam National University College of Medicine, Taejeon (Korea, Republic of)

    1983-06-15

    The authors reviewed serial chest films of 113 patients of spontaneous pneumothorax which were treated by closed tube thoracotomy during the period from May, 1979 till July 1982 in CNUH. The results are as follows: 1. Male was most frequently affected than female, and the sex ratio was 3.5 : 1. 2. 71.1 percent of patients were over 31 years of age. 3. Of the 113 cases, 51.3 percent were on the right, 48.7% percent on the left. 4. The most common underlying pulmonary diseases was pulmonary tuberculosis (39.8%), the next was belb or bulla (17.7%), and the last was pneumonia (8.8%). No diseases evident case was 31.9 percent. 5. Pneumothorax was the most common type in pulmonary tuberculosis (66.7%), and pyopneumothorax in pneumonia (80.0%). 6. Among 103 cases in complete re-expansion of collapsed lung after closed the thoracotomy, 39.5 percent was expanded completely within 1 week in presence of visceral and/ or parietal pleural thickening, and 86.2 percent in none of it. According to the degree of pneumothorax, the more severe degree of pneumothorax, the more delay in re-expansion times. 7. Most common chest finding after re-expansion of collapsed lung was pleural thickening (51.4%)

  17. Radiologic study of spontaneous pneumothorax

    International Nuclear Information System (INIS)

    The authors reviewed serial chest films of 113 patients of spontaneous pneumothorax which were treated by closed tube thoracotomy during the period from May, 1979 till July 1982 in CNUH. The results are as follows: 1. Male was most frequently affected than female, and the sex ratio was 3.5 : 1. 2. 71.1 percent of patients were over 31 years of age. 3. Of the 113 cases, 51.3 percent were on the right, 48.7% percent on the left. 4. The most common underlying pulmonary diseases was pulmonary tuberculosis (39.8%), the next was belb or bulla (17.7%), and the last was pneumonia (8.8%). No diseases evident case was 31.9 percent. 5. Pneumothorax was the most common type in pulmonary tuberculosis (66.7%), and pyopneumothorax in pneumonia (80.0%). 6. Among 103 cases in complete re-expansion of collapsed lung after closed the thoracotomy, 39.5 percent was expanded completely within 1 week in presence of visceral and/ or parietal pleural thickening, and 86.2 percent in none of it. According to the degree of pneumothorax, the more severe degree of pneumothorax, the more delay in re-expansion times. 7. Most common chest finding after re-expansion of collapsed lung was pleural thickening (51.4%)

  18. Spontaneous Vesicles Modulated by Polymers

    Directory of Open Access Journals (Sweden)

    Francisco Ortega

    2011-08-01

    Full Text Available Vesicles are widely used in technological applications including cosmetic products, in microencapsulation for drug delivery, as anticancer agents and in the technology of adhesives, paints and inks. The vesicle size and the surface charge are very important properties from a technological point of view. Thus, the challenge in formulation is to find inexpensive stable vesicles with well-defined sizes and to modulate the surface charge of these aggregates. In this work we analyze the effect of different polymers on the structural properties of vesicles of the biodegradable surfactant sodium bis(2-ethyl-hexyl sulfosuccinate, Aerosol OT. Using fluorescence, conductivity, electrophoretic mobility and dynamic light scattering measurements we study the effect of the polymer nature, molecular weight and polymer concentration on the stability and the vesicle size properties. Results demonstrate that it is possible to modulate both the size and the electric surface charge of spontaneous vesicles of Aerosol OT by the addition of very small percentages of poly(allylamine and poly(maleic anhydride-alt-1-octadecen.

  19. Surgical management of hand deformities in hereditary dystrophic epidermolysis bullosa

    Directory of Open Access Journals (Sweden)

    Panajotović Ljubomir

    2003-01-01

    Full Text Available In the period 1996-2001 in the Clinic for Plastic Surgery and Burns of the Military Medical Academy, 18 patients. 12 male and 6 female, with hereditary dystrophic epidermolysis bullosa (HDEB and hand deformities were surgically treated, to achieve the complete separation of fingers, correction of the thumb adduction contracture and flexion or extension contracture of finger joints. The period of wound healing on flat surfaces after surgery, and the period between two operations was estimated. The most common deformity was the flexion contractures of metacarpophalangeal (MP joints (45% and one or both interphalangeal (IP joints (types A1, A2. In 20% of the hands MP joint was streched with the flexion contracture in distal interphalangeal (DIP or both IP joints (types B1, B2. In 35% of hands MP joint was in hyperextension with folded proximal interphalangeal (PIP or both IP joints (C1 i C2. The adduction deformity of the thumb type 1, without the possibility of abduction, was present in 15%, type 2, when the thumb was placed above the palm in 60% and type 3, when the thumb was fused in the palm in 25%. Pseudosyndactyly of the first degree (till PIP joint was found in 30% of hands, the second degree (till DIP joint in 25%, and the third degree (the whole finger length in 45% of hands. Fingers were completely separated and stretched surgically. The period of spontaneous healing was 15 days on the average. EBDC represents great medical and social problem that requires multidisciplinary approach of physicians of various specialties (surgeons, dermatologists, pediatrists, geneticists, nutritionists physiatrists, ophtalmologists, dentists, ENT, as well as specially trained persons and families. The efficient specific systemic therapy aiming to increase the skin resistence to mechanical trauma does not exist yet, and should be developed in the field of gene therapy. The surgical correction of hand deformities, acrylate glove use in the longer post

  20. Universality of spontaneous chiral symmetry breaking in gauge theories

    International Nuclear Information System (INIS)

    We investigate one-flavor QCD with an additional chiral scalar field. For a large domain in the space of coupling constants, this model belongs to the same universality class as QCD, and the effects of the scalar become unobservable. This is connected to a 'bound-state fixed point' of the renormalization flow for which all memory of the microscopic scalar interactions is lost. The QCD domain includes a microscopic scalar potential with minima at a nonzero field. On the other hand, for a scalar mass term m2 below a critical value mc2, the universality class is characterized by perturbative spontaneous chiral symmetry breaking which renders the quarks massive. Our renormalization group analysis shows how this universality class is continuously connected with the QCD universality class

  1. Theory of the spontaneous condensation of steam during expansion

    International Nuclear Information System (INIS)

    When steam expands in a nozzle or turbine, it cools and, at a certain pressure level, the saturation limit is exceeded. The appearance of moisture does not comply with the simple laws of thermodynamic balance. The liquid phase appears only as from a certain sub-cooling of the steam, at which stage it forms suddenly as a finely dispersed mist. On the basis of the kinetic theory of gases and the critical radius concept, Oswatitch produced a theory on spontaneous condensation which was checked by tests in nozzles. On the other hand, this theory does not fully explain that which is observed in turbines or manifolds fed with fluids other than steam. Modifications have been made to the conventional theory in an endeavour to corroborate the experimental results

  2. Spontaneous chiral symmetry breaking of Hall magnetohydrodynamic turbulence.

    Science.gov (United States)

    Meyrand, Romain; Galtier, Sébastien

    2012-11-01

    Hall magnetohydrodynamics (MHD) is investigated through three-dimensional direct numerical simulations. We show that the Hall effect induces a spontaneous chiral symmetry breaking of the turbulent dynamics. The normalized magnetic polarization is introduced to separate the right- (R) and left-handed (L) fluctuations. A classical k(-7/3) spectrum is found at small scales for R magnetic fluctuations which corresponds to the electron MHD prediction. A spectrum compatible with k(-11/3) is obtained at large-scales for the L magnetic fluctuations; we call this regime the ion MHD. These results are explained heuristically by rewriting the Hall MHD equations in a succinct vortex dynamical form. Applications to solar wind turbulence are discussed. PMID:23215387

  3. Steam generator hand hole shielding.

    Science.gov (United States)

    Cox, W E

    2000-05-01

    Seabrook Station is an 1198 MWE Pressurized Water Reactor (PWR) that began commercial operation in 1990. Expensive and dose intensive Steam Generator Replacement Projects among PWR operators have led to an increase in steam generator preventative maintenance. Most of this preventative maintenance is performed through access ports in the shell of the steam generator just above the tube sheet known as secondary side hand holes. Secondary side work activities performed through the hand holes are typically performed without the shielding benefit of water in the secondary side of the steam generator. An increase in cleaning and inspection work scope has led to an increase in dose attributed to steam generator secondary side maintenance. This increased work scope and the station goal of maintaining personnel radiation dose ALARA led to the development of the shielding concept described in this article. This shield design saved an estimated 2.5 person-rem (25 person-Smv) the first time it was deployed and is expected to save an additional 50 person-rem (500 person-mSv) over the remaining life of the plant. PMID:10770158

  4. European Hands-on Universe

    Science.gov (United States)

    Doran, Rosa; Ferlet, Roger; Gómez de Castro, Ana I.; Hill, Robert; Horellou, Cathy; Mankiewicz, Lech; Melchior, Anne-Laure; Metaxa, Margarita; Zanazzi, Alessandra

    2007-08-01

    Hands-on Universe is a project born at UC@Berkeley. A project devoted to enrich the teaching of Astronomy within the classroom environment with a different approach, more connected to the new technologies. Its main goals are not only to promote the use of such technologies but also to reawaken on students the taste for STEM (Science, technologies, engineering and math) related issues and also to increase their scientific culture. Eight countries in Europe decided to adopt the method and, funded by MINERVA, formed the European Hands-on Universe. Several resources were produced and a data reduction software developed http://www.euhou.net/.Other European countries are interested and should join this coordinated effort in the near future. At an international level there are 20 countries using this approach. There are plans to develop scientific cooperation among these countries. Pilot scientific research projects in schools are being tested in EU-HOU schools, Russia and USA. There is also a game being developed to be used as a new tool for teaching scientific content in the classroom environment. An effort to develop an international network of scientific / educational collaboration is the next step.

  5. Hand, foot and mouth disease

    Directory of Open Access Journals (Sweden)

    Radhika Muppa

    2011-01-01

    Full Text Available Hand, foot and mouth disease (HFMD is an acute viral illness with a distinct clinical presentation of oral and characteristic distal extremity lesions. Knowledge of this is important for the dentists as the oral lesions are the first clinical signs and sometimes may be the only sign because the condition occasionally may regress even before the lesions appear on the extremities. This case describes a 5-year-old boy in whom low-grade fever of 38.7°C and oral lesions were the initial manifestations. Proper diagnosis was established later based on the typical location of the initial intraoral ulcers on the soft palate followed by cutaneous lesions on the hands and feet with vesicle formation surrounded by an erythematous halo. The recognition of HFMD is important for both pediatricians and pedodontists as oral manifestations are the first signs and may mimic many other conditions like acute herpetic gingivostomstomatitis, apthous stomatitis, chickenpox, erythema multiformae and misdiagnosis may involve an inappropriate prescription of medication.

  6. Spontaneous Triplets Carried in a Uterus Didelphys

    OpenAIRE

    Jessica R. Jackson; Brittney Williams; James Thorp

    2014-01-01

    Background: Spontaneous triplets in a uterus didelphys are an extremely rare finding. Only four other cases are reported in the literature. Case: A 24 year old gravida 3 para 2-0-0-2 conceived spontaneous triplets in a uterine didelphys. She developed cervical insufficiency and underwent cerclage placement at 17 weeks. After spontaneous rupture of membranes at 29 weeks gestation, she underwent repeat cesarean section, with delivery of three viable fetuses. Mother and all three babies are c...

  7. Spontaneous Bacterial Peritonitis in Subclinical Hypothyroidism

    Directory of Open Access Journals (Sweden)

    Dalip Gupta

    2013-11-01

    Full Text Available Hypothyroidism is an uncommon cause of ascites. Here we describe a case of a 75 year-old female patient with spontaneous bacterial peritonitis and subclinical hypothyroidism that resolved with thyroid replacement and antibiotic therapy respectively. Ascitic fluid analysis revealed a gram-positive bacterium on gram staining. A review of the literature revealed just one other reported case of myxoedema ascites with concomitant spontaneous bacterial peritonitis and no case has till been reported of spontaneous bacterial peritonitis in subclinical hypothyroidism.

  8. Herpetic viruses and spontaneous recovery in melanoma.

    Science.gov (United States)

    Motofei, I G

    1996-08-01

    The malignant melanoma may display extremely variable forms of development, from clinical forms with a lethal course to the unforeseeable situations of spontaneous cures. The basic immunotherapeutic procedures, as well as hypotheses regarding the mechanisms involved in courses towards spontaneous regressions, are presented. Since viruses of the herpes genus are involved in the mechanisms assumed to be at the basis of spontaneous regressions, it is suggested that these viruses (selected strains) be used in the clinic, in order to check the advanced hypothesis, an opportunity which could permit to study also the very probable therapeutic alternative offered by this virus, namely the association of the well-known immunotherapeutic methods. PMID:8869920

  9. The origin of the spontaneous electric polarization

    CERN Document Server

    Mushkolaj, Shpend

    2009-01-01

    The phenomenon of the spontaneous electric polarization (ferro- and antiferroelectricity) is one of the fundamental problems of the solid-state physics. Although, there has been lot of experimental and theoretical progress, still needs to be made to understand the origine of the spontaneous electric polarization. A new microscopic theory that is based on the perfectly elastic electron-atom and atom-atom collisions, crystal structure and the chemical composition of the compounds is developed to calculate the critical temperatures for materials with spontaneous electric polarization. The reliability of this model was examined by comparing the experimental results with calculated values.

  10. Predictability of hand skill and cognitive abilities from craniofacial width in right- and left-handed men and women: relation of skeletal structure to cerebral function

    OpenAIRE

    Dayi, Ertunc; Okuyan, Mukadder; Tan, Uner

    2002-01-01

    Recently, a family of homeobox genes involved in brain and craniofacial development was identified. In light of this genetic background, we hypothesized that some functional characteristics of human brain (hand skill, cognition) may be linked to some structural characteristics of human skull (e.g. craniofacial width) in humans. Hand preference was assessed by the Oldfield`s Handedness Questionaire. Hand skill was measured by Peg Moving Task. Face width was measured from the anteroposterior ce...

  11. The morphological changes of cardiomyocytes and mitochondrial dysfunction in spontaneous hypertensive rats with experimental diabetes mellitus

    Directory of Open Access Journals (Sweden)

    Kolesnyk M.Yu.

    2013-01-01

    Full Text Available The conception of energetic deficiency in the pathogenesis of arterial hypertension and diabetes mellitus presents new perspectives in the understanding of molecular and biochemical mechanisms of these diseases. It was performed the comparison between morphological changes and mitochondrial dysfunction in spontaneous hypertensive rats with experimental diabetes mellitus. The mitochondrial state was assessed by investigation of the permeability of the giant mitochondrial pore. It was found that the permeability of mitochondrial pore is increased in spontaneous hypertensive rats. It was registrated the significant increasing of mitochondrial membrane permeability in case of diabetes. It was observed the increased area of cardiomyocytes’ nuclei and decreased nuclear cytoplasmic ratio in diabetic animals. It was demonstrated that nucleic and cytoplasmic RNA concentration is decreased in comparison with the intact spontaneous hypertensive rats. The RNA biosynthesis abnormalities are associated with the degree of mitochondrial dysfunction in the myocardium of spontaneous hypertensive rats with experimental diabetes mellitus.

  12. Enhancing Lean Manufacturing Learning Experience through Hands-On Simulation

    Science.gov (United States)

    Elbadawi, Isam; McWilliams, Douglas L.; Tetteh, Edem G.

    2010-01-01

    Finding appropriate interactive exercises to increase students' learning in technical topic courses is always challenging to educators. In this study, several paper plane hands-on simulation exercises were developed, used, and tested in a lean manufacturing course for beginning college students. A pretest and posttest was used to assess the…

  13. Hand lay-up techniques

    Science.gov (United States)

    Wittman, C.; Shook, G. D.

    The materials, processes, and techniques, as well as comparisons of various hand and spray-up FRP finished product manufacturing procedures are presented. The steps followed in producing a finished product are noted to nominally comprise coating a form with a gel, build-up of the structure with reinforcing fibers and catalyzed polyester resin, curing, and impaction to remove trapped air. The part emerges with a finished surface prepainted by the gel. Design choices for the percentages and orientation of the reinforcement, the types of fillers, and the types of resins are dictated by the types and intensity of stresses to be encountered by the part in actual use. Examples are provided of the manufacture of a machine cover, a pressure tank formerly made of metal. Techniques for assuring integrity of the laminate in changes of thickness, joints, openings, and severe contours are described.

  14. Spontaneous splenic rupture in Waldenstrom's macroglobulinemia: a case report

    Directory of Open Access Journals (Sweden)

    Charakidis Michail

    2010-09-01

    Full Text Available Abstract Introduction We report the case of a patient with Waldenstrom's macroglobulinemia complicated by spontaneous splenic rupture. Case presentation A 49-year-old Caucasian woman was referred to our emergency department by her general practitioner following a three-week history of malaise, night sweats, six kilograms of weight loss, intermittent nausea and vomiting, progressive upper abdominal pain and easy bruising. On the fourth day following her admission, she had a rapid clinical deterioration, with subsequent radiological investigations revealing a splenic rupture. Her morphology, biochemistry, flow cytometry and histology were strongly suggestive of Waldenstrom's macroglobulinemia. Conclusions Spontaneous splenic rupture is not an expected complication of low-grade lymphoplasmacytic lymphomas, such as Waldenstrom's macroglobulinemia. To the best of our knowledge, this is the only reported case of early spontaneous splenic rupture due to Waldenstrom's macroglobulinemia. Our case highlights that despite the typical disease course of low-grade hematological malignancies, signs and symptoms of imminent splenic rupture should be considered when formulating a clinical assessment.

  15. Genetics Home Reference: primary spontaneous pneumothorax

    Science.gov (United States)

    ... increase the risk of primary spontaneous pneumothorax . One theory is that the altered folliculin protein may trigger ... be inherited? More about Inheriting Genetic Conditions Diagnosis & Management These resources address the diagnosis or management of ...

  16. Spontaneously reduced isolated orbital roof fracture.

    Science.gov (United States)

    Itinteang, Tinte; Lambe, Gerald Francis; MacKinnon, Craig; Agir, Hakan

    2012-07-01

    We report a case of a spontaneously reduced isolated orbital roof blow-in fracture with resolution of associated diplopia and blepharoptosis highlighting the need for a low threshold for reimaging this cohort of facial fracture patients. PMID:22801127

  17. Spontane abdominale arteriovenøse fistler

    DEFF Research Database (Denmark)

    Flarup, S; Lindholt, J S

    1997-01-01

    Spontaneous arteriovenous fistulas between major abdominal vessels (AAVF) complicates about 1% of abdominal aortic aneurysms. AAVF produces severe circulatory disturbances with high operative mortality. Preoperative diagnosis is important but difficult due to the varied nature of presentation. For...

  18. Absolute calibration technique for spontaneous fission sources

    International Nuclear Information System (INIS)

    An absolute calibration technique for a spontaneously fissioning nuclide (which involves no arbitrary parameters) allows unique determination of the detector efficiency for that nuclide, hence of the fission source strength

  19. SPONTANEOUS ESOPHAGEAL PERFORATION: WHEN NOT TO OPERATE

    Directory of Open Access Journals (Sweden)

    Shenthil Prabhu

    2015-10-01

    Full Text Available Spontaneous Oesophageal perforation is lethal unless managed appropriately. Oesophageal perforation can be spontaneous (Boerhaeve, post traumatic, malignant or foreign body induced. Appropriate treatment depends on the size of perforation, time of presentation between rupture and diagnosis and general condition of the patient. Not all patients need surgical management and when carefully selected there are subset of patients who can be managed medically. CASE REPORT: A case of spontaneous oesophageal perforation due to intense retching following alcohol intake in a 35year old male is described here with a review of pertinent literature. The patient had presented with intense retching followed by vomiting which contained undigested food particles initially only to be followed by hematemesis, chest pain, fever with left sided pleural effusion. Computed tomographic scan demonstrated a pneumomediastinum, and left sided pleural effusion. The patient was managed successfully by conservative treatment. CONCLUSION:Spontaneous oesophageal perforation can be managed conservatively in a selected set of patients .

  20. Spontaneous pneumomediastinum: a complication of anorexia nervosa?

    OpenAIRE

    Fergusson, R J; Shaw, T R; Turnbull, C M

    1985-01-01

    We describe a patient with anorexia nervosa who developed a spontaneous pneumomediastinum. Five other patients have been reported with this association, suggesting that tissue changes in anorexia nervosa may predispose to this condition.

  1. PATTERN OF POST BURN CONTRACTURE OF HAND IN EASTERN INDIA

    Directory of Open Access Journals (Sweden)

    Nishith M

    2016-05-01

    Full Text Available BACKGROUND Contracture of the hand poises great morbidity. Despite increasing sophistication in the overall management of acute thermal injuries, contractures still occur and are the most common cause of skin contracture in the hand. The problem of post burn contracture is largely preventable by good initial care. We studied 60 consecutive patients of post burn contracture of hand treated at Rajendra Institute of Medical Sciences, Ranchi, India with the aim to observe different patterns of post-traumatic contracture in hand and to assess the result of various treatment modalities. RESULTS Children and infants were most commonly involved with M:F ratio being 1.3:1. Flame burn was found to be the most common etiological factor. Right hand was involved in 53.33% of cases. Fingers were the most common anatomical site involving 90% of patients followed by wrist and palm. Only 23.33% patients were initially treated by a specialist while majorities i.e. 46.67% were initially treated by quacks or paramedical personnel. Z-Plasty was used as a method of reconstruction in 50% of cases and was the most common surgical intervention used followed by V-Y plasty in 20% cases. CONCLUSION Major causes of neglect in the treatment of post burns contracture were illiteracy. Reconstructive procedures can greatly improve the function of the hands. Appropriate choice of procedures and timely surgery is the key for treatment.

  2. Clean Hands Save Lives: Emergency Situations

    Science.gov (United States)

    ... Hurricanes Landslides Tornadoes Tsunamis Volcanoes Wildfires Winter Weather Clean Hands Save Lives: Emergency Situations DISASTER RECOVERY FACT ... water can be difficult. However, keeping your hands clean helps you avoid getting sick. It is best ...

  3. Monitor for alpha beta contamination of hands

    International Nuclear Information System (INIS)

    The following specifications of hands alpha beta contamination monitor are presented: the position of the hands, the detection and separation of alpha and beta, the information processing, the programming, the results presentation and general characteristics. (A.L.B.)

  4. Hand-Foot-and-Mouth Disease

    Science.gov (United States)

    ... clinical tools newsletter | contact Share | Hand-Foot-and-Mouth Disease A parent's guide for infants and babies ... a herpes virus infection. Overview Hand-foot-and-mouth disease is a common illness of infants and ...

  5. A study on prevalence of bacteria in the hands of children and their perception on hand washing in two schools of Bangalore and Kolkata

    Directory of Open Access Journals (Sweden)

    Sandip Kumar Ray

    2011-01-01

    Full Text Available Background: Contaminated hands play a major role in fecal-oral transmission of diseases. In 1847, Dr Semmelweis Ignac pointed to the link between infection and unclean hands, and demonstrated that washing hands could reduce transmission of puerperal fever (child birth fever, a dreaded disease with high mortality in those days. Materials and Methods: A cross-sectional study was conducted to find out the extent of germs present in hand, and also the students′ perception on hand washing. This was assessed by questionnaire as well as by collection of swab from hand and performing bacteriological culture in the laboratory. Results: In regard to students′ perception about the dirty areas of the hands, it was observed that majority (78% felt palm was likely to be more dirty while less than 70% felt that web spaces could harbor dirt. Almost 86% reported that they washed hands before eating lunch, but only 21.3% said they always used soap while 47.3% never used it. Availability of soap all the time in the school was reported by only 18.4% students. The swabs of 61% children showed potential pathogens. The commonest of these was Staphylococcus aureus which was seen in 44% samples. Conclusion: The students′ hands were contaminated before taking food. Although they washed hands before meals, they hardly used soap due to non-availability of soap. The school authority should be asked to keep soaps in the toilets for hand washing.

  6. Spontaneous lung herniation after a single cough

    International Nuclear Information System (INIS)

    Herniation of the lung is commonly caused by congenital rib abnormalities, blunt trauma, or thoracic surgery. Spontaneous hernias are rarely described in the literature. We report a case of a spontaneous intercostal pulmonary hernia following a single cough. In addition, a review of the literature is presented which outlines the classification, causes, and incidence of lung hernias. Some reference is made to possible methods of treatment. (orig.)

  7. Filum ependymoma mimicking spontaneous intracranial hypotension.

    Science.gov (United States)

    Schievink, Wouter I; Akopov, Sergey E

    2005-05-01

    A 34-year-old man with a 2-week history of orthostatic headaches and a "dry tap" at lumbar puncture was found to have a lumbar intradural mass on magnetic resonance imaging (MRI) examination. A myxopapillary ependymoma was resected and the patient's headache completely resolved. The combination of spontaneous orthostatic headaches and a "dry tap" at the time of lumbar puncture does not always indicate the presence of a spontaneous cerebrospinal fluid (CSF) leak and intracranial hypotension. PMID:15953283

  8. Role of Development of Spontaneity in Teambuilding

    Directory of Open Access Journals (Sweden)

    Andrii TROFIMOV

    2015-12-01

    Full Text Available The presentation lightens the results of testing a forming program of development of spontaneity as a mean of building a team. It was found that spontaneity and creativity are important components of interaction between team members. The study showed that spontaneity is needed in order to cope with unexpected situations and difficulties which would inevitably arise even in the most predictable situation among the well-coordinated team. Previous studies have indicated that members of the creative team interact freely with each other, inspire each other and work together purposefully. The program of development of spontaneity was developed and approved. Elements of Playback Theatre were used as the main component of spontaneity. Playback Theatre is a theater of improvisation and spontaneity, where viewers tell their stories, and the actors play them immediately on the scene. Directions of training actors of Playback Theatre include: the development of self-reflection, emotional sensitivity, interaction skills, creativity imagination and the ability to feel and hold one selves body and voice. The forming program consists of 6 blocks and is designed for 10 sessions. Based on the findings developed forming program of the development personality’s spontaneity can be considered as an effective means of building a team. During the program there was a process of personal development, together with the obvious process of teambuilding. This program can be useful and used for a wide range of applications in different contexts, which is reflected in the recommendations on the use of forming program of development of spontaneity.

  9. Spontaneous regression of metastatic Merkel cell carcinoma.

    LENUS (Irish Health Repository)

    Hassan, S J

    2010-01-01

    Merkel cell carcinoma is a rare aggressive neuroendocrine carcinoma of the skin predominantly affecting elderly Caucasians. It has a high rate of local recurrence and regional lymph node metastases. It is associated with a poor prognosis. Complete spontaneous regression of Merkel cell carcinoma has been reported but is a poorly understood phenomenon. Here we present a case of complete spontaneous regression of metastatic Merkel cell carcinoma demonstrating a markedly different pattern of events from those previously published.

  10. Spontaneous corynebacterium spondylodiskitis in an immunocompetent patient

    DEFF Research Database (Denmark)

    Sharifi, Guive; Hosseinzadeh Bakhtevari, Mehrdad; Nabizadeh, Naveed; Jabbari, Reza; Samadian, Mohammad; Rezaei, Omidvar

    2016-01-01

    Background Spontaneous Corynebacterium spondylodiskitis is an unusual diagnosis of spondylodiskitis, especially in healthy patients without any significant past medical history. Materials and methods We describe the case of a 78-year-old man with progressive low back pain for 3 months, irradiating...... Corynebacterium infection. Results One month after surgery, the pain diminished dramatically and the CRP titer diminished significantly. Conclusion Although cases are very rare, spontaneous Corynebacterium spondylodiskitis, with substantial invasion of the spine, may develop in patients lacking any history of...

  11. Spontaneous Bile Duct Rupture in Pregnancy

    OpenAIRE

    Piotrowski, Joseph J.; Greg Van Stiegmann; R. Dale Liechty

    1990-01-01

    Spontaneous bile duct rupture occurred in a 23-year-old who required emergency Cesarean section for fetal distress. This condition has not been reported in association with pregnancy. Only forty cases of spontaneous bile duct perforation in adults have been previously reported. Seventy percent of these perforations were related to biliary calculi. Sites of perforation were evenly distributed between common hepatic duct and common bile duct. Recommended treatment includes cholecystectomy, comm...

  12. Spontaneous Hemothorax: Analysis of 5 Cases

    OpenAIRE

    Fuat Sayır; Ufuk Çobanoğlu; Bünyamin Sertoğullarından; Duygu Mergan

    2012-01-01

    Aim: Spontan hemothorax is disease that bleeding in the pleural space, because of nontrauma. Generally, the underlying cause is a primary pathology. It can be life-threatening. We reviewed the relevant literature 5 patients developed hemothorax without a history of trauma. Material and Method: In our clinic between 2005 and 2011 were treated 220 cases of hemothorax. In 5 cases (2.2%) were detected spontaneous hemothorax. The patients were evaluated according to age, gender, the affected area,...

  13. Spontaneous fission of 256Rf, new data

    Science.gov (United States)

    Svirikhin, A. I.; Yeremin, A. V.; Izosimov, I. N.; Isaev, A. V.; Kuznetsov, A. N.; Malyshev, O. N.; Popeko, A. G.; Popov, Yu. A.; Sokol, E. A.; Chelnokov, M. L.; Chepigin, V. I.; Andel, B.; Asfari, M. Z.; Gall, B.; Yoshihiro, N.; Kalaninova, Z.; Mullins, S.; Piot, J.; Stefanova, E.; Tonev, D.

    2016-07-01

    Spontaneous fission properties of the short-lived neutron-deficient 256Rf nucleus produced in the complete fusion reaction with a beam of multiply charged heavy 50Ti ions from the U-400 cyclotron (FLNR, JINR) are experimentally investigated. Its half-life and decay branching ratio are measured. The average number of neutrons per spontaneous fission of 256Rf (bar v = 4.47 ± 0.09) is determined for the first time.

  14. Hand Hygiene Practices among Medical Students

    OpenAIRE

    Azzam al Kadi; Sajad Ahmad Salati

    2012-01-01

    Background. Hand hygiene is a cost-effective method in preventing infection transmission. Hand hygiene practices have been found to be faulty in most healthcare settings. We conducted a study to evaluate the awareness, and compliance of hand hygiene among undergraduate medical students during their clinical phase in Qassim College of Medicine, Saudi Arabia. Methods. A questionnaire based on World Health Organization's concept of “Five Moments for Hand Hygiene” was used to evaluate the awarene...

  15. Future Perspectives for Hand Transplant in Iran

    OpenAIRE

    M. J. Fatemi; M. Masoumi; Esfandiari, E

    2011-01-01

    Hand transplant program is a communion of physicians and researchers during the current de¬cade. 72 hands and digits were transplanted in 53 patients over the past 13 years. Unlike a solid organ transplant, hand transplantation involves various tissues, so it is called “composite tissue allotransplantation.” This article discusses the plans for performing the first hand transplant in Iran.

  16. Survival of pneumococcus on hands and fomites

    OpenAIRE

    Beissbarth Jemima; Crichton Faith; Smith-Vaughan Heidi; Morris Peter S; Leach Amanda J

    2008-01-01

    Abstract Background Pneumococcal hand contamination in Indigenous children in remote communities is common (37%). It is not clear whether this requires frequent inoculation, or if pneumococci will survive on hands for long periods of time. Thus the aim of this study was to determine the survival time of pneumococci on hands and fomites. Findings The hands of 3 adult volunteers, a glass plate and plastic ball were inoculated with pneumococci suspended in two different media. Survival at specif...

  17. Tool making, hand morphology and fossil hominins

    OpenAIRE

    Marzke, Mary W.

    2013-01-01

    Was stone tool making a factor in the evolution of human hand morphology? Is it possible to find evidence in fossil hominin hands for this capability? These questions are being addressed with increasingly sophisticated studies that are testing two hypotheses; (i) that humans have unique patterns of grip and hand movement capabilities compatible with effective stone tool making and use of the tools and, if this is the case, (ii) that there exist unique patterns of morphology in human hands tha...

  18. Hand Functioning in Children with Cerebral Palsy

    OpenAIRE

    Arnould, Carlyne; Bleyenheuft, Yannick; Thonnard, Jean-Louis

    2014-01-01

    Brain lesions may disturb hand functioning in children with cerebral palsy (CP), making it difficult or even impossible for them to perform several manual activities. Most conventional treatments for hand dysfunction in CP assume that reducing the hand dysfunctions will improve the capacity to manage activities (i.e., manual ability, MA). The aim of this study was to investigate the directional relationships (direct and indirect pathways) through which hand skills influence MA in children wit...

  19. Hand functioning in children with cerebral palsy

    OpenAIRE

    CarlyneArnould; YannickBleyenheuft; Jean-LouisThonnard

    2014-01-01

    Brain lesions may disturb hand functioning in children with cerebral palsy (CP), making it difficult or even impossible for them to perform several manual activities. Most conventional treatments for hand dysfunction in CP assume that reducing the hand dysfunctions will improve the capacity to manage activities (i.e., manual ability, MA). The aim of this study was to investigate the directional relationships (direct and indirect pathways) through which hand skills influence MA in children wit...

  20. FEL gain optimisation and spontaneous radiation

    Energy Technology Data Exchange (ETDEWEB)

    Bali, L.M.; Srivastava, A.; Pandya, T.P. [Lucknow Univ. (India)] [and others

    1995-12-31

    Colson have evaluated FEL gains for small deviations from perfect electron beam injection, with radiation of the same polarisation as that of the wiggler fields. We find that for optimum gain the polarisation of the optical field should be the same as that of the spontaneous emission under these conditions. With a helical wiggler the axial oscillations resulting from small departures from perfect electron beam injection lead to injection dependent unequal amplitudes and phases of the spontaneous radiation in the two transverse directions. Viewed along the axis therefore the spontaneous emission is elliptically polarised. The azimuth of the ellipse varies with the difference of phase of the two transverse components of spontaneous emission but the eccentricity remains the same. With planar wigglers the spontaneous emission viewed in the axial direction is linearly polarised, again with an injection dependent azimuth. For optimum coherent gain of a radiation field its polarisation characteristics must be the same as those of the spontaneous radiation with both types of wiggler. Thus, with a helical wiggler and the data reported earlier, an increase of 10% in the FEL gain at the fundamental frequency and of 11% at the fifth harmonic has been calculated in the small gain per pass limit. Larger enhancements in gain may result from more favourable values of input parameters.