WorldWideScience

Sample records for mono-task hand work

  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. Time off work after occupational hand injuries

    DEFF Research Database (Denmark)

    Skov, O; Jeune, B; Lauritsen, Jens;

    1999-01-01

    This study analysed the impact of several factors on the start and duration of time off work among 802 patients with occupational hand injuries, in order to identify prognostic indicators. The study showed that external factors such as work and social condition seemed to have less influence on time...

  3. Risk factors for hand-wrist disorders in repetitive work

    DEFF Research Database (Denmark)

    Thomsen, J. F.; Mikkelsen, S.; Andersen, JH

    2007-01-01

    (wrist pain and palpation tenderness) were determined in 3123 employees in 19 industrial settings. With the use of questionnaires and video recordings of homogenous work tasks number of wrist movements, hand force requirements and wrist position were analysed as risk factors for hand-wrist disorders......OBJECTIVES: To identify the risk of hand-wrist disorders related to repetitive movements, use of hand force and wrist position in repetitive monotonous work. METHODS: Using questionnaires and physical examinations, the prevalence and incidence of hand-wrist pain and possible extensor tendonitis...... were less consistent. Working with the hand in a non-neutral position could not be identified as a risk factor...

  4. Work-related hand dermatitis : epidemiological studies in occupational dermatology

    NARCIS (Netherlands)

    Smit, Henriette Anita

    1993-01-01

    Hand eczema or hand dermatitis is a well-known problem in occupations with regular exposure to water and irritating agents ("wet work"). It is experienced frequently by nurses, hairdressers, housewives, food handlers and metal workers. Although hand dermatitis is a relatively infrequent cause of

  5. Work-related hand dermatitis epiemiological studies in occupational dermatology

    NARCIS (Netherlands)

    Smit, H.A.

    1993-01-01

    Hand eczema or hand dermatitis is a well-known problem in occupations with regular exposure to water and irritating agents ("wet work"). It is experienced frequently by nurses, hairdressers, housewives, food handlers and metal workers. Although hand dermatitis is a relatively infrequent cause of

  6. Determinants of return to work in patients with hand disorders and hand Injuries

    NARCIS (Netherlands)

    Opsteegh, L.; Reinders-Messelink, H.A.; Schollier, D.; Groothoff, J.W.; Postema, K.; Dijkstra, P.U.; van der Sluis, C.K.

    2009-01-01

    Introduction Return to work (RTW) in patients with hand disorders and hand injuries is determined by several determinants not directly related to the physical situation. Besides biomedical determinants, work-related and psychosocial determinants may influence RTW as well. This study is conducted to

  7. 是"hard work",还是"hand work"?

    Institute of Scientific and Technical Information of China (English)

    王维民

    2004-01-01

    @@ 编辑: 贵刊内容丰富,读后思维开阔,受益匪浅.在仔细阅读中发现了一个错误,提出供参考:2004年第2期77页"格言与幽默"中写到 "Surgery is derived from the Latin chirugery meaning hard work……"这里的hard work应为hand work.因为拉丁语chirugery的意思是"用手的工作".故英文"外科"一词的意思应为"用手的工作",而不是"努力工作".

  8. The Robonaut 2 Hand - Designed to do Work with Tools

    Science.gov (United States)

    Bridgwater, L. B.; Ihrke, C. A.; Diftler, M. A.; Abdallah, M. E.; Radford, N. A.; Rogers, J. M.; Yayathi, S.; Askew, R. S.; Linn, D. M.

    2011-01-01

    The second generation Robonaut hand has many advantages over its predecessor. This mechatronic device is more dexterous and has improved force control and sensing giving it the capability to grasp and actuate a wider range of tools. It can achieve higher peak forces at higher speeds than the original. Developed as part of a partnership between General Motors and NASA, the hand is designed to more closely approximate a human hand. Having a more anthropomorphic design allows the hand to attain a larger set of useful grasps for working with human interfaces. Key to the hand s improved performance is the use of lower friction drive elements and a redistribution of components from the hand to the forearm, permitting more sensing in the fingers and palm where it is most important. The following describes the design, mechanical/electrical integration, and control features of the hand. Lessons learned during the development and initial operations along with planned refinements to make it more effective are presented.

  9. Influence On Physical Work While Working With Segmental Vibration Inducing Hand Operated Power Tools

    Directory of Open Access Journals (Sweden)

    Sudhir Vinayakrao. Deshmukh

    2012-10-01

    Full Text Available Study evaluates and assesses the work done by vibrating equipments. It includes the assessment of influence of various independent variables associated with hand tools, operators, work & environmental factors on various dependent variables. Three tools selected for study include Rock drill (Dry type (Tool-1, Concrete breaker (Tool-2, Hand grinder (Tool-3. The impact of vibration exposure on health of operators is assessed by the help of survey. It is found that the human energy expenditure is more in the subjects having low grip strength whereas it is less in the subjects of more grip strength. The subjects having more grip strength show less change in touch sensation. The human energy expenditure of subjects of hand grinder is significantly less than the subjects of rock drill and concrete breaker. The presence of hand arm vibration Syndrome (HAVS in the subjects under heavy work, like rock drill and concrete breaker found very high.

  10. Wet work exposure and hand eczema among healthcare workers - a cross-sectional study.

    Science.gov (United States)

    Hamnerius, N; Svedman, C; Bergendorff, O; Björk, J; Bruze, M; Pontén, A

    2017-07-19

    Hand eczema is more common in healthcare workers compared to the general population. The hands are subject to changing occupational exposures due to mandatory hygiene regulations for health care workers. To describe the exposure due to hygiene procedures and investigate the associations between occupational hand washing, use of non-sterile gloves, and hand disinfectant and self-reported hand eczema. Cross-sectional study with an electronic questionnaire distributed to 28 762 hospital employees in southern Sweden. Respondents working as nurses, assistant nurses or physicians constituted the group of healthcare workers analysed. Adjustments were made for gender, age, wet work at home, life-style factors and atopic dermatitis. 12 288 (43%) responded including 9051 healthcare workers. In this group the 1-year prevalence of self-reported hand eczema was 21%. On a daily basis, 30% reported hand washing with soap >20 times at work, 45% used hand disinfectants >50 times, and 54% used non-sterile gloves > 2 hours. After adjustment for confounding factors, a dose-dependent association with self-reported hand eczema was found for the daily number of hand washes with soap at work and time working with disposable gloves, but not for alcoholic disinfectant use. Hand washing outside work was not associated with self-reported hand eczema in the adjusted multivariate analysis. In this study, we found a higher 1-year prevalence of self-reported hand eczema among Swedish healthcare workers than reported in the general population. Hand washing with soap and use of disposable gloves were associated with the occurrence of self-reported hand eczema in a dose-dependent way. Use of hand disinfectant was not associated with self-reported hand eczema. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  11. Is compliance with hand disinfection in the intensive care unit related to work experience?

    Science.gov (United States)

    Noritomi, Danilo Teixeira; Chierego, Marialuisa; Byl, Bauduin; Menestrina, Nicola; Carollo, Tiziana; Struelens, Marc; Vincent, Jean-Louis

    2007-03-01

    The performance of hand disinfection by staff in a 31-bed department of intensive care was monitored. During 32 hours of observation, 727 opportunities for hand disinfection were observed, and the compliance rate was 27.9%. The level of work experience was not correlated with hand disinfection compliance rates.

  12. Approach strategy and working posture in manual hand tool operation

    NARCIS (Netherlands)

    Chang, S.W.; Delleman, N.J.; Wang, M.J.J.

    2010-01-01

    The strategy for approaching a manual work position is an important reference for describing a goal-directed task. However, knowledge on this aspect of human behavior is scarce. The objectives of this study are twofold: (1) to describe and understand the strategy people tend to adopt for approaching

  13. Non-powered hand tool improvement research for prevention of work-related problems: a review.

    Science.gov (United States)

    Jain, Rahul; Sain, Manoj Kumar; Meena, Makkhan Lal; Dangayach, Govind Sharan; Bhardwaj, Awadhesh Kumar

    2017-03-28

    In lower-middle-income countries, most of the work is performed manually using non-ergonomic hand tools which results in work-related health problems. Using hand tools designed in line with ergonomic principles may play an important role in reducing work-related health concerns significantly. Scientific databases (PubMed, EBSCOhost) and e-publishers were searched for articles from 1985 to 2015 using the following keywords: 'hand tool', 'ergonomics', 'usability' and 'design'. After applying selection criteria to 614 articles, 58 articles related to the physical design of hand tools were selected. Seventeen articles were related to hand tool improvement in the manufacturing sector. Musculoskeletal disorders were found to be the most frequently occurring work-related health problems. Most of the articles focused on product and qualitative variables for improvement in hand tools, while few articles considered human and task variables. Literature shows that hand tool improvement studies have been given less importance in low-income and lower-middle-income countries. However, some work of significance is reported in the agriculture sectors of these countries. Hence, it is concluded that ergonomic intervention in hand tools is much needed for those industries which employ traditional methods of working.

  14. How to balance hearing loss and work life – when individual and organizational action go hand in hand

    DEFF Research Database (Denmark)

    Lund, Katja; Rosenstand, Claus Andreas Foss

    2015-01-01

    stressors and resistance builders in hearing-impaired employees during everyday life. An ecological momentary storytelling method was applied in order to investigate, on the one hand, the narratives related to the hearing loss, and on the other hand, the narratives related to work-life in order to reach...... an understanding of the research question: How is it possible for a hearing-impaired employee to keep up a strong narrative about self and at the same time make sure that the needs related to hearing loss are met? By applying the method, we also obtained information on everyday stressors in the lives of six......Sick leave and early withdrawal from the labour market is more frequent among the hearing-impaired population than people with normal hearing. The focus of this study is to gain a deeper understanding of the determinants that lead to a fragile and a strong labour market attachment by investigating...

  15. Entry into vocational rehabilitation program following work-related hand injury: Potential candidates

    Directory of Open Access Journals (Sweden)

    Yueh-Hsia Chen

    2015-10-01

    Full Text Available Objectives: This case-control study aimed to investigate the predictors of return to work (RTW following work-related major forearm, wrist or hand injury at the preparation stage of return to work. Material and Methods: A total of 80 clients were recruited and divided into 2 groups depending on their readiness of RTW. The groups were compared with each other with regard to their demographics, compensation status, hand injury severity, health perception, and time off work (TOW using correlation coefficient. Predictors of RTW were measured by logistic regression analysis. Results: There were no significant differences in demographics and the severity of hand injury between 2 groups. Self-perceived physical functioning (p = 0.04, vitality (p = 0.01, mental health (p = 0.03 and TOW (p = 0.001 were significantly different between Action group and Preparation group. With binary logistic regression analysis, self-perceived vitality (odds ratio (OR = 1.041 and TOW (OR = 0.996 were shown to be strongly predictive of RTW at the preparation stage of return to work. Conclusions: This study has shown that shorter TOW and better self-perceived vitality could predict early readiness for RTW after major work-related forearm, wrist or hand injury.

  16. The effects of joint torque, pace and work:rest ratio on powered hand tool operations.

    Science.gov (United States)

    Lin, Jia-Hua; McGorry, Raymond W; Maikala, Rammohan V

    2012-01-01

    Repetitive use of hand-held power tools is associated with work-related upper extremity musculoskeletal disorders. Using a pneumatic nutrunner, 21 men completed twelve 360 repetitive fastener-driving sessions on three joints (hard, soft and control) at slow and fast pace, and two different work:rest patterns. Handgrip force and perceived exertions were collected throughout each session. For the control joint, the mean grip force exerted was 39.6% of maximum voluntary exertion (MVE) whereas during hard and soft joint sessions it was 48.9% MVE and 56.9% MVE, respectively. Throughout each session, the grip force decreased, more while operating soft and hard joints as compared with the control joint (regression slope: -0.022 and -0.023, compared with -0.007 N/drive, respectively), suggesting considerable upper extremity muscular effort by participants during torque buildup. Fast work pace resulted in higher average grip forces by participants but a greater decrease in the force as the session progressed. Providing rest breaks reduced perceived exertions. The findings gain additional knowledge for assembly task design to possibly reduce the hand/arm injury risks for the operator. Practitioner Summary: Powered hand tools are widely used in assembly and manufacturing industries. However, the nature of their repetitive use on human operator biomechanical and perceptual responses is not fully understood. This study examined work-related risk factors such as joint torque, pace and work:rest ratios on powered hand tool performance.

  17. Staff perception of interprofessional working relationships after a work redesign intervention in a Danish orthopaedic hand unit outpatient clinic.

    Science.gov (United States)

    de Beijer, Anke Elisabeth; Hansen, Torben Bæk; Stilling, Maiken; Jakobsen, Flemming

    2016-01-01

    There is evidence that clinical pathways improve quality of care; however, knowledge is limited concerning the influence on and the benefits experienced by the interprofessional teams working with these pathways. Our working methods in a hand unit in an orthopaedic outpatient clinic in Denmark were redesigned to include, among other changes, the introduction of clinical pathways. Changes included standardising treatment and communication methods, delegating tasks from medical specialists to nurses, and providing nurses with their own consultation room. Using focus group interviews before and after the implementation of the new working methods, we investigated staff-perceived experiences of the effects on working relationships and the utilisation of professional skills and attitudes, resulting from the mentioned change in working methods. The results were changes in daily communication methods among healthcare staff and improvements in the actual communication and collaborative problem solving skills concerning standard patients with simple hand pathology; however, there are still challenges for patients with more complex hand pathology. Though this new interprofessional arrangement improves the use of nurse and medical specialist professional competencies, it also requires a high degree of trust among the team members.

  18. Working conditions of Iranian hand-sewn shoe workers and associations with musculoskeletal symptoms.

    Science.gov (United States)

    Dianat, Iman; Salimi, Arezou

    2014-01-01

    The working conditions and the prevalence of self-reported musculoskeletal symptoms among 180 Iranian hand-sewn shoe workers were evaluated in this cross-sectional study. Data were collected using both questionnaire (for assessing musculoskeletal symptoms and associated risk factors) and direct observations of posture (by the Rapid Upper Limb Assessment [RULA] method). The prevalence and severity of symptoms was very high among the study population. The mean RULA grand score of 6.2 indicates that in most cases the workers' postures at their workstations need to be investigated and some changes are required immediately. Multiple logistic regression models indicated that the job experience, daily working hours, duration of continuous work without breaks, feeling pressure due to work and working postures were significantly associated with musculoskeletal symptoms of different body regions. The results are discussed in terms of their implications for hand-sewing tasks. These findings can help to better understand the working conditions of those jobs involving hand-sewing operation and highlight the potential for ergonomic interventions to reduce musculoskeletal symptoms among these working groups.

  19. Skin protection in nursing work : promoting the use of gloves and hand alcohol

    NARCIS (Netherlands)

    Jungbauer, FHW; van der Harst, J.J.; Groothoff, J.W.; Coenraads, PJ

    Nursing has been identified as a wet-work occupation, with a high prevalence of occupational irritant contact dermatitis. Reduction of exposure to skin irritants contributes to the prevention of occupational skin disease in nurses. The role of the use of soap and water, hand alcohol and gloves in

  20. Skin protection in nursing work : promoting the use of gloves and hand alcohol

    NARCIS (Netherlands)

    Jungbauer, FHW; van der Harst, J.J.; Groothoff, J.W.; Coenraads, PJ

    2004-01-01

    Nursing has been identified as a wet-work occupation, with a high prevalence of occupational irritant contact dermatitis. Reduction of exposure to skin irritants contributes to the prevention of occupational skin disease in nurses. The role of the use of soap and water, hand alcohol and gloves in pr

  1. Work-related hand and lower-arm injuries in New Zealand, 1979 to 1988.

    Science.gov (United States)

    Burridge, J D; Marshall, S W; Laing, R M

    1997-08-01

    The aim of this study was to describe the epidemiology of work-related hand and lower-arm injuries in New Zealand. Nonfatal hand and lower-arm injuries were identified from New Zealand's national database of hospital admissions for the period 1979 to 1988. Thirty-seven per cent (9714) of all such injuries (26,228) were work-related. Piercing and cutting instruments (38.5 per cent) and machinery (37.2 per cent) were the two most common agents of work-related hand and lower-arm injury. Specific occupations in which the number of cases was high included meat workers (n = 1020, 3.3 per 1000 employees), carpenters (n = 548, 2.2 per 1000), machine operators (n = 450, 11.9 per 1000) and sawmill workers (n = 498, 7.7 per 1000). The injury rate for meat workers, carpenter-joiners, machine operators and sawmillers increased significantly over the 10-year study period.

  2. Do low burnout and high work engagement always go hand in hand?: investigation of the energy and identification dimensions in longitudinal data.

    Science.gov (United States)

    Mäkikangas, Anne; Feldt, Taru; Kinnunen, Ulla; Tolvanen, Asko

    2012-01-01

    The aim of the present 2-year follow-up study among young managers (N=433) was to investigate the intraindividual developmental patterns of burnout and work engagement as well as their interconnections. More specifically, we examined the interconnectedness of the varying patterns (i.e., latent classes) of exhaustion and vigor (i.e., the energy dimension) and cynicism and dedication (i.e., the identification dimension) across time. The latent class solutions supported by the growth mixture modeling indicated four latent classes for exhaustion and five for vigor. In addition, four latent classes were found for cynicism and six for dedication. Cynicism and dedication represented opposites with a strong negative relationship, whereas exhaustion and vigor were not connected and seemed to be two independent constructs. Overall, the present findings confirmed the results of earlier studies relating to the energy and identification continua and underlined the importance of investigating the subdimensions of burnout and work engagement. Thus, our study showed that high cynicism goes hand in hand with low dedication, but high exhaustion and low vigor do not necessarily appear together.

  3. [A device for measuring contamination of hands in work places with open radiation sources].

    Science.gov (United States)

    Husák, V; Kleinbauer, K; Erban, J

    1989-01-01

    The device manufactured is equipped with the NaI(Tl) scintillation crystal situated in a thick lead shielding. The cavity in the lead shielding allows inserting a hand which is in contact with the detector during the measurements. The apparatus exhibits low values of the minimum detectable superficial activity of radionuclides emitting low energy gamma-rays (e.g. 125I, 99mTc). The apparatus complies with the requirements for a sensitive and prompt monitoring the contamination of hands in departments of nuclear medicine with the numerous staff.

  4. [Compliance on hand-hygiene among healthcare providers working at secondary and tertiary general hospitals in Chengdu].

    Science.gov (United States)

    Han, Ke; Dou, Feng-man; Zhang, Li-jie; Zhu, Bao-ping

    2011-11-01

    To evaluate the compliance on hand-hygiene and related factors among healthcare providers working at secondary and tertiary hospitals in Chengdu. On-site observations regarding hand-hygiene compliance and facilities were conducted in 6 hospitals in Chengdu. Doctors and nurses were asked and recorded about their knowledge regarding hand-hygiene. Of 1535 activities where hand-hygiene was deemed necessary, under observating healthcare providers would perform hand-hygiene procedures 17.8% of the time (12.8% of the time before touching a patient, 21.0% of the time before touching objects around a patient, 27.3% of the time after touching a patient, and 31.5% of the time after removing gloves). Only 2.2% of the treating rooms were equipped with foot-operated or automatic faucets;of these only 24.5% had soap or alcohol-based hand-sanitizer, and 6.3% had paper towel or other hand-drying equipment. 92.8% of the healthcare providers knew of the six-step method on hand-washing. More than 90.0% of the healthcare providers knew that both palm and back of the hands as well as the front and back of the fingers should be washed. However, only 22.8% knew that the hand-washing procedure should last ≥ 15 seconds. Rates on hand hygiene among chief or more senior physicians (14.6%), attending physicians (9.2%) and junior doctors (15.6%), nurses in chief (25.0%), senior nurses (26.3%) and junior nurses (20.5%) showed no significant differences (P > 0.05). Similarly, scores on related knowledge between chief or senior physicians (12.4 ± 3.2), attending physicians (13.6 ± 3.3) and junior doctors (13.4 ± 2.9), nurses in charge (15.2 ± 2.0), senior nurses (14.8 ± 2.1) and junior nurses (14.3 ± 2.6) also showed no significant differences (P > 0.05). Rate on hand hygiene among nurses (22.7%) was significantly higher than that of the doctors (13.6%). Rate of hand hygiene among 50 - 59 years old healthcare providers (7.4%) was significantly lower than those of all the other age groups

  5. STOPFLU: is it possible to reduce the number of days off in office work by improved hand-hygiene?

    Directory of Open Access Journals (Sweden)

    Roivainen Merja

    2010-06-01

    Full Text Available Abstract Background Acute infectious diseases are major causes of short periods of days off from work, day care and school. These diseases are mainly caused by viruses and hands have a key role in their transmission. Thus, hypothetically, they can be controlled with means of intensified hand hygiene. In this study we aim to elucidate the effect of acute infectious diseases on the work contribution in common office work and study the influence of improved hand hygiene on possible reduction of infectious disease episodes and days off from work due to acute infectious diseases. Design The voluntary participants have been recruited from six companies in the Helsinki region. The designated 21 study clusters were identified as operationally distinct working units each containing at least 50 people. The clusters were matched and randomized based on results of a pre-trial contagion risk survey. Improved hand hygiene is being executed with guided hand-washing with soap and water in one intervention arm and with alcohol based hand rubbing disinfectant in the other. Participants in both arms have received guidance on how to avoid infections and how to implement contagion stopping habits. A control arm is acting as before regarding hand hygiene. Data collection for evaluation of the efficacy of the interventions is based on self-reporting through weekly electronic reports. The questionnaire is enquiring about possible respiratory or gastrointestinal symptoms during the preceding week, and requests a daily report of presence of symptoms and working capacity. Etiology of the symptoms is not searched for individually, but contribution of different viruses is evaluated by sentinel surveillance, where occupational health clinics located in the premises of the participating companies collect specimens from employees visiting the clinic. Common causative agents of the diseases are being searched for using real-time PCR techniques. The duration of the intervention

  6. Working hard to make a simple definition of synergies. Comment on: "Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands" by Marco Santello et al.

    Science.gov (United States)

    Alessandro, Cristiano; Oliveira Barroso, Filipe; Tresch, Matthew

    2016-07-01

    The paper "Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands" [1] presents a comprehensive review of the work carried out as part of the EU funded project "The Hand Embodied". The work uses the concept of "synergy" to study the neuromuscular control of the human hand and to design novel robotics systems. The project has been very productive and has made important contributions. We are therefore confident that it will lead to further advancements and experiments in the future.

  7. A Hand Up: How State Earned Income Tax Credits Help Working Families Escape Poverty. 2000 Edition.

    Science.gov (United States)

    Johnson, Nicholas

    An Earned Income Tax Credit (EITC) is a tax reduction and a wage supplement for low- and moderate-income working families. The federal government, and some states, administer an EITC through the income tax. States that enact EITCs can reduce child poverty, support welfare-to-work efforts, and cut taxes for families struggling to make ends meet.…

  8. A Hand Up: How State Earned Income Tax Credits Help Working Families Escape Poverty. 1999 Edition.

    Science.gov (United States)

    Johnson, Nicholas

    An Earned Income Tax Credit (EITC) is a tax reduction and a wage supplement for low- and moderate-income working families. The federal government administers an EITC through the income tax, as do some states. States that enact EITCs can reduce child poverty, support welfare-to-work efforts, and cut taxes for families struggling to make ends meet.…

  9. Work hands and feet in motion on the vertical ladder into the prosthesis disabled lower limb

    Directory of Open Access Journals (Sweden)

    Li Yugang

    2012-08-01

    Full Text Available The influence of the conditions of ascent and descent on the stairs with disabilities is shown. The study involved 12 persons with lower limb prosthetic right or left foot. The purpose was to determine the specific conditions of disabled people in the process of adaptation to the complicated conditions of their life. Underlying this approach is the study of the biomechanical characteristics the movements of disabled people in special terms. The factors that influence the effectiveness of the disability movement on the stairs is shown. These include slope angle, a compensatory effort of the hands and the ability to maintain balance while moving. These studies are the basis for a meaningful solution to improve the disability movement in the complicated conditions.

  10. What to Trust: Reconciling Mathematical Work Done by Hand with Conflicting Graphing Calculator Solutions

    Science.gov (United States)

    McCulloch, Allison W.; Kenney, Rachael H.; Keene, Karen Allen

    2013-01-01

    This paper reports on a mixed-methods study of 111 Advanced Placement calculus students' self-reports of their graphing calculator use, comfort, and rationale for trusting a solution produced with or without a graphing calculator when checking written work. It was found that there was no association between gender, teacher-reported…

  11. What to Trust: Reconciling Mathematical Work Done by Hand with Conflicting Graphing Calculator Solutions

    Science.gov (United States)

    McCulloch, Allison W.; Kenney, Rachael H.; Keene, Karen Allen

    2013-01-01

    This paper reports on a mixed-methods study of 111 Advanced Placement calculus students' self-reports of their graphing calculator use, comfort, and rationale for trusting a solution produced with or without a graphing calculator when checking written work. It was found that there was no association between gender, teacher-reported mathematical…

  12. Hand Eczema

    NARCIS (Netherlands)

    Coenraads, Pieter-Jan

    2012-01-01

    A 33-year-old woman presents with redness of the hands and reports the intermittent occurrence of tiny vesicles, scaling, and fissuring, accompanied by itching on the palms, fingers, and dorsal sides of the hands. She has two young children and works as a nurse in a nearby hospital. She has a histor

  13. Communication and meaning construction in teacher education: work by many hands

    Directory of Open Access Journals (Sweden)

    Tania Maria Esperon Porto

    2014-06-01

    Full Text Available This text aims to bring a crop of three processes of research conducted in different contexts: two public schools in elementary and high school and a public university, with the confluence of the experience of communication, sharing and collaborative construction of meaning experienced by us, educators and researchers. We talked to teachers and the media and their languages. We have lived and investigated processes of teacher training in communicative methodology, which made it possible to create experiences, to ask questions and reflections about everyday teaching, treated in the light of theoretical education and communication. The communication practices provided practical experiences of the world, reveal directions of teachers, allowing an interaction between subject and their contexts. Working among several different people is to provide means to cope with complex situations that individually we can not manage.

  14. Physical capacity and psychological mood in association with self-reported work ability in vibration-exposed patients with hand symptoms

    OpenAIRE

    Edlund Maria; Gerhardsson Lars; Hagberg Mats

    2012-01-01

    Abstract Background The aim of this study was to investigate whether self-reports of work ability correlated to the results of quantitative tests measuring physical capacity and a questionnaire assessing psychological mood in vibration-exposed patients with hand symptoms. Methods The participants comprised 47 patients (36 men and eleven women) with exposure to hand vibration and vascular and/or neurological symptoms in the hands. They performed several quantitative tests (manual dexterity, ha...

  15. Physical capacity and psychological mood in association with self-reported work ability in vibration-exposed patients with hand symptoms

    Directory of Open Access Journals (Sweden)

    Edlund Maria

    2012-11-01

    Full Text Available Abstract Background The aim of this study was to investigate whether self-reports of work ability correlated to the results of quantitative tests measuring physical capacity and a questionnaire assessing psychological mood in vibration-exposed patients with hand symptoms. Methods The participants comprised 47 patients (36 men and eleven women with exposure to hand vibration and vascular and/or neurological symptoms in the hands. They performed several quantitative tests (manual dexterity, hand grip strength, finger strength and completed the Work Ability Index (WAI and Hospital Anxiety and Depression Scale (HADS questionnaires. Results Correlation analysis revealed statistically significant associations between the WAI results, the HADS indices, hand grip and finger strength, and manual dexterity measured using the Purdue Pegboard®. Multiple regression analysis revealed age and HADS indices as the strongest predictors of work ability. Conclusions The patient’s age and psychological mood may be stronger predictors of work ability compared with results from tests measuring physical capacity of the hands in vibration-exposed patients with hand symptoms. When using the WAI as an instrument for assessing work ability in these patients, health care providers need to be more aware of the impact of the psychological mood.

  16. Cognitive Achievement and Motivation in Hands-on and Teacher-Centred Science Classes: Does an additional hands-on consolidation phase (concept mapping) optimise cognitive learning at work stations?

    Science.gov (United States)

    Gerstner, Sabine; Bogner, Franz X.

    2010-05-01

    Our study monitored the cognitive and motivational effects within different educational instruction schemes: On the one hand, teacher-centred versus hands-on instruction; on the other hand, hands-on instruction with and without a knowledge consolidation phase (concept mapping). All the instructions dealt with the same content. For all participants, the hands-on approach as well as the concept mapping adaptation were totally new. Our hands-on approach followed instruction based on "learning at work stations". A total of 397 high-achieving fifth graders participated in our study. We used a pre-test, post-test, retention test design both to detect students' short-term learning success and long-term learning success, and to document their decrease rates of newly acquired knowledge. Additionally, we monitored intrinsic motivation. Although the teacher-centred approach provided higher short-term learning success, hands-on instruction resulted in relatively lower decrease rates. However, after six weeks, all students reached similar levels of newly acquired knowledge. Nevertheless, concept mapping as a knowledge consolidation phase positively affected short-term increase in knowledge. Regularly placed in instruction, it might increase long-term retention rates. Scores of interest, perceived competence and perceived choice were very high in all the instructional schemes.

  17. Project Hand-Up. Helping Adolescents Needing Direction-Unlimited Partnership (HAND-UP): Stimulating Coordination and Linkage between Occupational Work Adjustment Programs and the Job Training Partnership Act (JTPA). Final Report.

    Science.gov (United States)

    Ohio State Dept. of Education, Columbus. Div. of Vocational and Career Education.

    Project HAND-UP (Helping Adolescents Needing Direction-Unlimited Partnership) was a 2-year program to enhance dropout prevention services to at-risk youth by establishing a closer linkage between Job Training Partnership (JTPA)-Ohio and the Ohio Department of Education's Occupational Work Adjustment (OWA) programs. The project's major activities…

  18. Hand to hand.

    Science.gov (United States)

    Bedell, Susanna E; Graboys, Thomas B

    2002-08-01

    Examination of the hands has the potential to transform the encounter between physician and patient. Taking the hands conveys a sense of warmth and connectedness and is a means to communicate the physician's mindfulness. The hands can focus the examination on the individual patient as a complete human being, and not merely a disease or a collection of symptoms. The hands provide readily accessible information that may not be available through other evaluations, and they offer clues to a patient's physical and mental health. Commonplace observations, such as those revealed in the hands, can unravel medical mysteries and provide profound clinical insights.

  19. Associations of work activities requiring pinch or hand grip or exposure to hand-arm vibration with finger and wrist osteoarthritis

    DEFF Research Database (Denmark)

    Hammer, Paula E C; Shiri, Rahman; Kryger, Ann I;

    2014-01-01

    -analyses. RESULTS: Of the 19 studies included, 17 were cross-sectional, 1 was a prospective cohort, and 1 a case-control study. The meta-analyses of studies that controlled their estimates for at least age and gender showed the associations of pinch grip work with proximal interphalangeal joint [OR 1.56, 95...

  20. When work and satisfaction with life do not go hand in hand: health barriers and personal resources in the participation of people with chronic physical disabilities.

    NARCIS (Netherlands)

    Campen, C. van; Cardol, M.

    2009-01-01

    People with chronic physical disabilities participate less in both paid and voluntary work and are less satisfied with their lives than people without health problems. Governments and scientists have suggested that participation in employment is the main road to well-being. We analysed national surv

  1. 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

  2. Working length changes in curved canals after coronal flaring by using rotary files and hand file: An in vitro study

    Directory of Open Access Journals (Sweden)

    Rahul Kumar

    2013-01-01

    Full Text Available Aim: This in vitro investigation examined the effect of early coronal flaring (CF and late CF on the working length (WL in curved root canals. Background: The objective of this study was to determine if canal length is altered as a result of CF in curved canals of molar roots. Study Design: The conditions compared were combinations of (a stainless steel hand files using Gates Glidden (G. G. drills (SS versus nickel-titanium rotary files (Ni-Ti; and (b early CF (flaring completed before WL determination versus late CF (flaring completed after WL determination. Selected were 90 canals of extracted maxillary or mandibular first molars (mesial root of mandibular molars and the mesiobuccal root of the maxillary molars from three groups. CF was accomplished for the SS group using G. G. drills and for the Ni-Ti group using rotary ProTaper and Hero Shaper files. WL was determined by a digital vernier caliper before CF, immediately after CF, and again after canal preparation. Statistical Analysis: A repeated measures analysis of variance (ANOVA test and a Tukey′s multiple prosthoc test were used for this study. Results: Results indicated that WL decreased for all canals as a result of canal preparation. The mean decrease in WL was significantly greater for the SS group (−0.77 ± 0.42 mm than for the Ni-Ti groups (−0.33 mm ± 0.44. Less change in WL occurred in all groups when initial WL was determined after CF. Conclusion: WL in curved canals consistently decreases during the course of instrumentation. Clinician should keep this in mind for better treatment outcome.

  3. Hand washing with soap and water together with behavioural recommendations prevents infections in common work environment: an open cluster-randomized trial.

    Science.gov (United States)

    Savolainen-Kopra, Carita; Haapakoski, Jaason; Peltola, Piia A; Ziegler, Thedi; Korpela, Terttu; Anttila, Pirjo; Amiryousefi, Ali; Huovinen, Pentti; Huvinen, Markku; Noronen, Heikki; Riikkala, Pia; Roivainen, Merja; Ruutu, Petri; Teirilä, Juha; Vartiainen, Erkki; Hovi, Tapani

    2012-01-16

    Hand hygiene is considered as an important means of infection control. We explored whether guided hand hygiene together with transmission-limiting behaviour reduces infection episodes and lost days of work in a common work environment in an open cluster-randomized 3-arm intervention trial. A total of 21 clusters (683 persons) were randomized to implement hand hygiene with soap and water (257 persons), with alcohol-based hand rub (202 persons), or to serve as a control (224 persons). Participants in both intervention arms also received standardized instructions on how to limit the transmission of infections. The intervention period (16 months) included the emergence of the 2009 influenza pandemic and the subsequent national hand hygiene campaign influencing also the control arm. In the total follow-up period there was a 6.7% reduction of infection episodes in the soap-and water arm (p = 0.04). Before the onset of the anti-pandemic campaign, a statistically significant (p = 0.002) difference in the mean occurrence of infection episodes was observed between the control (6.0 per year) and the soap-and-water arm (5.0 per year) but not between the control and the alcohol-rub arm (5.6 per year). Neither intervention had a decreasing effect on absence from work. We conclude that intensified hand hygiene using water and soap together with behavioural recommendations can reduce the occurrence of self-reported acute illnesses in common work environment. Surprisingly, the occurrence of reported sick leaves also increased in the soap-and water-arm. ClinicalTrials.gov: NCT00981877 The Finnish Work Environment Fund and the National Institute for Health and Welfare.

  4. Hand washing with soap and water together with behavioural recommendations prevents infections in common work environment: an open cluster-randomized trial

    Directory of Open Access Journals (Sweden)

    Savolainen-Kopra Carita

    2012-01-01

    Full Text Available Abstract Background Hand hygiene is considered as an important means of infection control. We explored whether guided hand hygiene together with transmission-limiting behaviour reduces infection episodes and lost days of work in a common work environment in an open cluster-randomized 3-arm intervention trial. Methods A total of 21 clusters (683 persons were randomized to implement hand hygiene with soap and water (257 persons, with alcohol-based hand rub (202 persons, or to serve as a control (224 persons. Participants in both intervention arms also received standardized instructions on how to limit the transmission of infections. The intervention period (16 months included the emergence of the 2009 influenza pandemic and the subsequent national hand hygiene campaign influencing also the control arm. Results In the total follow-up period there was a 6.7% reduction of infection episodes in the soap-and water arm (p = 0.04. Before the onset of the anti-pandemic campaign, a statistically significant (p = 0.002 difference in the mean occurrence of infection episodes was observed between the control (6.0 per year and the soap-and-water arm (5.0 per year but not between the control and the alcohol-rub arm (5.6 per year. Neither intervention had a decreasing effect on absence from work. Conclusions We conclude that intensified hand hygiene using water and soap together with behavioural recommendations can reduce the occurrence of self-reported acute illnesses in common work environment. Surprisingly, the occurrence of reported sick leaves also increased in the soap-and water-arm. Trial Registration ClinicalTrials.gov: NCT00981877 Source of funding The Finnish Work Environment Fund and the National Institute for Health and Welfare.

  5. Hand washing with soap and water together with behavioural recommendations prevents infections in common work environment: an open cluster-randomized trial

    Science.gov (United States)

    2012-01-01

    Background Hand hygiene is considered as an important means of infection control. We explored whether guided hand hygiene together with transmission-limiting behaviour reduces infection episodes and lost days of work in a common work environment in an open cluster-randomized 3-arm intervention trial. Methods A total of 21 clusters (683 persons) were randomized to implement hand hygiene with soap and water (257 persons), with alcohol-based hand rub (202 persons), or to serve as a control (224 persons). Participants in both intervention arms also received standardized instructions on how to limit the transmission of infections. The intervention period (16 months) included the emergence of the 2009 influenza pandemic and the subsequent national hand hygiene campaign influencing also the control arm. Results In the total follow-up period there was a 6.7% reduction of infection episodes in the soap-and water arm (p = 0.04). Before the onset of the anti-pandemic campaign, a statistically significant (p = 0.002) difference in the mean occurrence of infection episodes was observed between the control (6.0 per year) and the soap-and-water arm (5.0 per year) but not between the control and the alcohol-rub arm (5.6 per year). Neither intervention had a decreasing effect on absence from work. Conclusions We conclude that intensified hand hygiene using water and soap together with behavioural recommendations can reduce the occurrence of self-reported acute illnesses in common work environment. Surprisingly, the occurrence of reported sick leaves also increased in the soap-and water-arm. Trial Registration ClinicalTrials.gov: NCT00981877 Source of funding The Finnish Work Environment Fund and the National Institute for Health and Welfare. PMID:22243622

  6. Assessment of nickel and cobalt release from 200 unused hand-held work tools for sale in Denmark — Sources of occupational metal contact dermatitis?

    DEFF Research Database (Denmark)

    Thyssen, Jacob P.; Jensen, Peter; Lidén, Carola

    2011-01-01

    tools for sale in 2 retailers of home improvement and construction products were analyzed qualitatively for metal release using the colorimetric nickel and cobalt spot tests. ResultsNickel release was identified from 5% of 200 work tools using the dimethylglyoxime (DMG) test. In 8 of 10, positive......IntroductionNickel and cobalt allergy remain frequent in dermatitis patients. It is important to determine possible nickel and cobalt exposures at work as these may offer important information to regulators and physicians who perform patch testing. Clinical relevance of metal exposure is usually...... assessed by the treating physician via the medical history and by presentation of allergic contact dermatitis. ObjectivesTo screen unused non-powered hand-held work tools for nickel and cobalt release by using colorimetric spot tests. Materials & methodsA random selection of 200 non-powered hand-held work...

  7. Work of the Hand through the Curriculum and across the Planes of Development: A Compilation of Creative Ideas

    Science.gov (United States)

    NAMTA Journal, 2013

    2013-01-01

    This article and the one that follows, "Quilt-Making in the Elementary Class" (EJ1077043), emerge from Mountain Laurel Montessori School and provide examples of the intrinsic links between the hand and academic lessons. This article features a compilation of artful recipes for young children (Soap Sculpting Clay, Easy Flour Paste, Face…

  8. Physical Performance Characteristics of Military Aircraft Maintenance Personnel Resistant to Work-Related Musculoskeletal Disorders of the Hand and Wrist

    Science.gov (United States)

    2006-01-01

    inflammatory disorders include tendonitis, trigger finger, and tenosynovitis. Nerve compression conditions include carpal tunnel syndrome and ulnar ...workers with about 20% attributed to the wrist, hand, or finger (BLS, 2005). Inflammatory, nerve compression, and degenerative conditions such as...tendonitis, carpal tunnel syndrome , and arthritis are included in the category of WMSDs. Risk factors such as repetition, vibration, awkward positions

  9. Using pliers in assembly work: short and long task duration effects of gloves on hand performance capabilities and subjective assessments of discomfort and ease of tool manipulation.

    Science.gov (United States)

    Dianat, Iman; Haslegrave, Christine M; Stedmon, Alex W

    2012-03-01

    The present study investigated the effects of wearing typical industrial gloves on hand performance capabilities (muscle activity, wrist posture, touch sensitivity, hand grip and forearm torque strength) and subjective assessments for an extended duration of performing a common assembly task, wire tying with pliers, which requires a combination of manipulation and force exertion. Three commercially available gloves (cotton, nylon and nitrile gloves) were tested and compared with a bare hand condition while participants performed the simulated assembly task for 2 h. The results showed that wearing gloves significantly increased the muscle activity, wrist deviation, and discomfort whilst reducing hand grip strength, forearm torque strength and touch sensitivity. The combined results showed that the length of time for which gloves are worn does affect hand performance capability and that gloves need to be evaluated in a realistic working context. The results are discussed in terms of selection of gloves for industrial assembly tasks involving pliers. Copyright © 2011 Elsevier Ltd and The Ergonomics Society. All rights reserved.

  10. Arthritis of the Hand

    Science.gov (United States)

    .org Arthritis of the Hand Page ( 1 ) The hand and wrist have multiple small joints that work together to ... a shoelace. When the joints are affected by arthritis, activities of daily living can be difficult. Arthritis ...

  11. Effectiveness of alcohol-based hand disinfectants in a public administration: Impact on health and work performance related to acute respiratory symptoms and diarrhoea

    Directory of Open Access Journals (Sweden)

    Hübner Nils-Olaf

    2010-08-01

    Full Text Available Abstract Background The economical impact of absenteeism and reduced productivity due to acute infectious respiratory and gastrointestinal disease is normally not in the focus of surveillance systems and may therefore be underestimated. However, large community studies in Europe and USA have shown that communicable diseases have a great impact on morbidity and lead to millions of lost days at work, school and university each year. Hand disinfection is acknowledged as key element for infection control, but its effect in open, work place settings is unclear. Methods Our study involved a prospective, controlled, intervention-control group design to assess the epidemiological and economical impact of alcohol-based hand disinfectants use at work place. Volunteers in public administrations in the municipality of the city of Greifswald were randomized in two groups. Participants in the intervention group were provided with alcoholic hand disinfection, the control group was unchanged. Respiratory and gastrointestinal symptoms and days of work were recorded based on a monthly questionnaire over one year. On the whole, 1230 person months were evaluated. Results Hand disinfection reduced the number of episodes of illness for the majority of the registered symptoms. This effect became statistically significant for common cold (OR = 0.35 [0.17 - 0.71], p = 0.003, fever (OR = 0.38 [0.14-0.99], p = 0.035 and coughing (OR = 0.45 [0.22 - 0.91], p = 0.02. Participants in the intervention group reported less days ill for most symptoms assessed, e.g. colds (2.07 vs. 2.78%, p = 0.008, fever (0.25 vs. 0.31%, p = 0.037 and cough (1.85 vs. 2.00%, p = 0.024. For diarrhoea, the odds ratio for being absent became statistically significant too (0.11 (CI 0.01 - 0.93. Conclusion Hand disinfection can easily be introduced and maintained outside clinical settings as part of the daily hand hygiene. Therefore it appears as an interesting, cost-efficient method within the scope

  12. Cognitive Achievement and Motivation in Hands-On and Teacher-Centred Science Classes: Does an Additional Hands-On Consolidation Phase (Concept Mapping) Optimise Cognitive Learning at Work Stations?

    Science.gov (United States)

    Gerstner, Sabine; Bogner, Franz X.

    2010-01-01

    Our study monitored the cognitive and motivational effects within different educational instruction schemes: On the one hand, teacher-centred versus hands-on instruction; on the other hand, hands-on instruction with and without a knowledge consolidation phase (concept mapping). All the instructions dealt with the same content. For all…

  13. Hand Anatomy

    Science.gov (United States)

    ... Z Videos Infographics Symptom Picker Anatomy Bones Joints Muscles Nerves Vessels Tendons About Hand Surgery What is a Hand Surgeon? What is a Hand Therapist? Media Find a Hand Surgeon Home Anatomy Bones Joints Muscles Nerves Vessels Tendons Anatomy The upper extremity is ...

  14. Android Hands

    DEFF Research Database (Denmark)

    Vlachos, Evgenios; Schärfe, Henrik

    2014-01-01

    . 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 objects...

  15. Lending a Helping Hand at Work: A Multilevel Investigation of Prosocial Motivation, Inclusive Climate and Inclusive Behavior.

    Science.gov (United States)

    Nelissen, Philippe T J H; Hülsheger, Ute R; van Ruitenbeek, Gemma M C; Zijlstra, Fred R H

    2016-11-11

    Purpose People with disabilities often encounter difficulties at the workplace such as exclusion or unfair treatment. Researchers have therefore pointed to the need to focus on behavior that fosters inclusion as well as variables that are antecedents of such 'inclusive behavior'. Therefore the purpose of this study was to research the relationship between prosocial motivation, team inclusive climate and employee inclusive behavior. Method A survey was conducted among a sample of 282 paired employees and colleagues, which were nested in 84 teams. Employees self-rated prosocial motivation and team inclusive climate, their inclusive behavior was assessed by colleagues. Hypotheses were tested using multilevel random coefficient modeling. Results Employees who are prosocially motivated will display more inclusive behavior towards people with disabilities, and this relationship is moderated by team inclusive climate in such a way that the relationship is stronger when the inclusive climate is high. Conclusion This study shows that inclusive organizations, which value a diverse workforce, need to be aware of not only individual employee characteristics, but also team level climate to ensure the smooth integrations of people with disabilities into regular work teams.

  16. Hand Fractures

    Science.gov (United States)

    ... Z Videos Infographics Symptom Picker Anatomy Bones Joints Muscles Nerves Vessels Tendons About Hand Surgery What is a Hand Surgeon? What is ... serve as a framework. This framework supports the muscles that make the wrist ... When one of these hand bones is broken (fractured), it can prevent you ...

  17. 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.

  18. Work.

    Science.gov (United States)

    Haines, Annette M.

    2003-01-01

    Draws upon Maria Montessori's writings to examine work as a universal human tendency throughout life. Discusses the work of adaptation of the infant, work of "psycho-muscular organism" for the preschooler, work of the imagination for the elementary child, community work of the adolescent, and work of the adult. Asserts that…

  19. Hand eczema.

    Science.gov (United States)

    Agarwal, Uma Shankar; Besarwal, Raj Kumar; Gupta, Rahul; Agarwal, Puneet; Napalia, Sheetal

    2014-05-01

    Hand eczema is often a chronic, multifactorial disease. It is usually related to occupational or routine household activities. Exact etiology of the disease is difficult to determine. It may become severe enough and disabling to many of patients in course of time. An estimated 2-10% of population is likely to develop hand eczema at some point of time during life. It appears to be the most common occupational skin disease, comprising 9-35% of all occupational diseases and up to 80% or more of all occupational contact dermatitis. So, it becomes important to find the exact etiology and classification of the disease and to use the appropriate preventive and treatment measures. Despite its importance in the dermatological practice, very few Indian studies have been done till date to investigate the epidemiological trends, etiology, and treatment options for hand eczema. In this review, we tried to find the etiology, epidemiology, and available treatment modalities for chronic hand eczema patients.

  20. [Hand infections].

    Science.gov (United States)

    Schiele, Philippe; Le Nen, Dominique

    2013-11-01

    Superficial and deep hand infections are frequent in general medical practice. Clinical examination is a crucial step for an adapted provided care. Most of the time, surgery is the only way to heal infections. However, in some cases (like bites), empiric antibiotherapy is first indicated to limit infection. Staphyloccocus aureus as well as Group Beta Streptococcus are the most frequently pathogenes associated with hand infections. Methicillin resistant S. Aureus must always be considered in the diagnoses. Whatever treatment is provided, clinical assessement must be repeated within two days. An early adaquated treatment prevent functional complications and in some cases death of the patients.

  1. Exposures related to hand eczema

    DEFF Research Database (Denmark)

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

    2012-01-01

    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....... 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......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...

  2. Hand eczema

    Directory of Open Access Journals (Sweden)

    Uma Shankar Agarwal

    2014-01-01

    Full Text Available Hand eczema is often a chronic, multifactorial disease. It is usually related to occupational or routine household activities. Exact etiology of the disease is difficult to determine. It may become severe enough and disabling to many of patients in course of time. An estimated 2-10% of population is likely to develop hand eczema at some point of time during life. It appears to be the most common occupational skin disease, comprising 9-35% of all occupational diseases and up to 80% or more of all occupational contact dermatitis. So, it becomes important to find the exact etiology and classification of the disease and to use the appropriate preventive and treatment measures. Despite its importance in the dermatological practice, very few Indian studies have been done till date to investigate the epidemiological trends, etiology, and treatment options for hand eczema. In this review, we tried to find the etiology, epidemiology, and available treatment modalities for chronic hand eczema patients.

  3. Hand Osteoblastoma

    Directory of Open Access Journals (Sweden)

    M. Farzan

    2006-06-01

    Full Text Available Background and Aim: Osteoblastoma is one of the rarest primary bone tumors. Although, small bones of the hands and feet are the third most common location for this tumor, the hand involvement is very rare and few case observations were published in the English-language literature. Materials and Methods: In this study, we report five cases of benign osteoblastoma of the hand, 3 in metacarpals and two in phalanxes. The clinical feature is not specific. The severe nocturnal, salicylate-responsive pain is not present in patients with osteoblastoma. The pain is dull, persistent and less localized. The clinical course is usually long and there is often symptoms for months before medical attention are sought. Swelling is a more persistent finding in osteoblastoma of the hand that we found in all of our patients. The radiologic findings are indistinctive, so preoperative diagnosis based on X-ray appearance is difficult. In all of our 5 cases, we fail to consider osteoblastoma as primary diagnosis. Pathologically, osteoblastoma consisting of a well-vascularized connective tissue stroma in which there is active production of osteoid and primitive woven bone. Treatment depends on the stage and localization of the tumor. Curettage and bone grafting is sufficient in stage 1 or stage 2, but in stage 3 wide resection is necessary for prevention of recurrence. Osteosarcoma is the most important differential diagnosis that may lead to inappropriate operation.

  4. 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 atopic...

  5. 规范化职业康复护理对手外伤患者重返工作的影响%Effects of normalized vocational rehabilitation nursing on returning to work after hand injury

    Institute of Scientific and Technical Information of China (English)

    刘月花

    2012-01-01

    目的 探讨规范化职业康复护理对手外伤患者重返工作的影响.方法 选择2009年1~12月本院收治的136例手外伤患者,术后进行规范化的职业康复护理,观察患者手功能的恢复情况及其重返工作岗位的情况.结果 术后随访6个月~2年,中位随访时间1.1年,103例患者随访成功,33例失访.其中获得随访的103例患者手功能恢复优36例、良57例、可7例、差3例,优良率为90.3%:重返工作岗位92例,重返工作率89.3%.结论 手外伤患者术后存在手功能障碍的问题,对重返工作带来影响,而规范化的职业康复护理能有效促进患者按步骤进行康复锻炼,提高患者的治疗效果,有利于患者早日恢复工作.%Objective To investigate the effects of normalized vocational rehabilitation nursing on returning to work after hand injury. Methods A total of 136 patients with hand injury from our hospital involved in the study from January to December 2009. After surgery they were treated with normalized vocational rehabilitation nursing, their hands' working conditions and their resumption to work recorded. Results Follow-up ranged from 6 months to 2 years, averaged 1.1 years after surgery. 103 patients had their hand functions recovered, among whom 36 reached excellent recovery in their hand function, 57 good, 7 fairly good and 3 poor, with a good rate of 90.3%. 92 patients returned to work, taking up 89.3%. Conclusions The patients with hand injury usually suffer from a problem of hand dysfunction, which affects their returning to work. The normalized vocational rehabilitation nursing can effectively lead the patients to carry out rehabilitation exercise step by step, improve their therapeutic efficacy, and help them return to work as soon as possible.

  6. Man and his hand

    NARCIS (Netherlands)

    J.C.H.M. van der Meulen (Jacques)

    1976-01-01

    textabstractIntroduction: In a world where mechanisation and automation have led to a devaluation of skilled manual work, and where only certain press and publicity media doubt the superiority of the mind, the following operating-theatre dialogue is refreshing: Surgeon: The surgeon's hands are his f

  7. Effect of hand lotion on the effectiveness of hygienic hand antisepsis: Implications for practicing hand hygiene.

    Science.gov (United States)

    Paula, Helga; Hübner, Nils-Olaf; Assadian, Ojan; Bransmöller, Katja; Baguhl, Romy; Löffler, Harald; Kramer, Axel

    2017-08-01

    Skin protection products should be used after washing hands with soap, during breaks, after work, and during leisure time. Aside from their beneficial effects, skin care products may also interact with alcohol-based hand disinfectants by reducing their efficacy. The aim of this study was to investigate the effect of a hand lotion on the effectiveness of hygienic hand antisepsis using an alcohol-based handrub. The effect of a protective hand lotion against an isopropyl alcohol-based handrub was investigated in 20 healthy volunteers according to the European standard test procedure EN 1500 in the following combinations: handwashing and application of hand lotion, only application of hand lotion, and no washing and no hand lotion (control), each for 5 minutes or 1 hour before hand antisepsis. The difference in microbiologic before-and-after values were expressed as log reduction factor. The effectiveness of hand antisepsis was not significantly affected in any of the groups using the tested hand lotion. Hand antisepsis may be delayed for 5 minutes after hand lotion application. Shorter time intervals might be possible but were not tested. Copyright © 2017 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

  8. [Costs of hand emergencies].

    Science.gov (United States)

    Raimbeau, G

    2003-10-01

    In France at the present time, there is no comprehensive registry of hand injuries. Three types of occurrences; motor vehicle accidents, work accidents, and accidents incident to activities of daily living, are covered by different types of insurance. It is the individual insurance companies, payers of the indemnification, who maintain registries of these accidents. Statistics on work accidents are very detailed and consistent, but they are oriented toward risk management. The aggregate cost of traumatic injuries to the hand is not known. Only large financial institutions are equipped to determine appropriate preventive measures and to establish premium rates based on loss experience. In 2001, hand injuries accounted for 27% of work accidents causing loss of work of at least 1 day. About 29.8% of these work accidents caused permanent partial impairment. About 17.7% of total days lost and 18.2% of the total costs of permanent impairment were due to hand injuries. In the system of compensation for work accidents, there is a major difference in the cost according to the severity of the impairment. If the permanent impairment is equal to or less than 9%, a lump sum payment is made, but if the permanent impairment is over 9%, the worker receives regular payments for the rest of his life. In 2000, the average cost of a work injury with partial permanent impairment of over 9% was [symbol: see text] 85,405, while the average cost of a lump sum settlement was only [symbol: see text] 1479, a ratio of 57 to 1. The compensation costs represent 80% of the cost of work accidents, while the cost of treatment, including all providers and institutions, makes up only 20% of the cost. Compensation for sequelae of accidents in the course of daily life is new for the insurance companies, although these accidents are frequent and often cause significant repercussions in the professional lives of victims because of the loss of hand function. Provision of optimal treatment for these

  9. 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.

  10. Hands Off!

    DEFF Research Database (Denmark)

    Foss, Kirsten; Foss, Nicolai

    a crucial issue when organizations want to sustain the advantages that may flow from delegation: Such advantages are dependent on motivated employees, and managerial overruling or reneging is harmful to motivation. However, little work has been done on how organizations can make delegation credible. We...... intervention that may harm employee motivation. This introduces a neglected incentive dimension to the organizational design literature. Moreover, it is argued that harmful intervention may be reduced by increasing managers' costs of intervening. Refutable propositions are derived.......Credible delegation of discretion obtains when it is a rational strategy for managers not to overrule employee decisions that are based on delegated decision rights or renege on the level of delegated discretion (and this is common knowledge). Making delegation of discretion credible becomes...

  11. Assessment of nickel and cobalt release from 200 unused hand-held work tools for sale in Denmark - Sources of occupational metal contact dermatitis?

    DEFF Research Database (Denmark)

    Thyssen, Jacob P; Jensen, Peter; Lidén, Carola

    2011-01-01

    Nickel and cobalt allergy remain frequent in dermatitis patients. It is important to determine possible nickel and cobalt exposures at work as these may offer important information to regulators and physicians who perform patch testing. Clinical relevance of metal exposure is usually assessed by ...

  12. Hand Dominance and Common Hand Conditions.

    Science.gov (United States)

    Lutsky, Kevin; Kim, Nayoung; Medina, Juana; Maltenfort, Mitchell; Beredjiklian, Pedro K

    2016-05-01

    The goals of this study were to (1) assess how frequently patients present for evaluation of common hand disorders in relation to hand dominance and (2) evaluate the effect of hand dominance on function in patients with these conditions. The authors hypothesized that (1) the majority of patients who seek evaluation would have a condition that affects the dominant hand, and (2) disability scores would be worse if the dominant hand is involved. They retrospectively reviewed the records of consecutive patients who presented for treatment to their institution with unilateral symptoms of 5 common disorders of the hand: carpal tunnel syndrome (CTS), de Quervain's tenosynovitis (DEQ), lateral epicondylitis (LE), hand osteoarthritis (OA), and trigger finger (TF). The authors assessed the effect of diagnosis and hand dominance on Disabilities of the Arm, Shoulder and Hand (DASH) scores. The study group comprised 1029 patients (379 men and 650 women) with a mean age of 59.5 years. Ninety percent were right-hand dominant. The dominant and nondominant hands were affected with relatively equal frequency for CTS, DEQ, OA, and TF (range, 45%-53%). Patients with LE had a significantly higher incidence of dominant hand involvement. Men had lower DASH scores than women by an average of 7.9 points, and DASH scores were significantly but slightly higher for the overall group (3.2 points) when the dominant side was affected. Men with LE and women with TF and OA had significantly higher DASH scores when their dominant extremity was affected. Common hand disorders such as CTS, DEQ, OA, and TF affect the dominant and nondominant hands in roughly equivalent proportions, whereas LE is more common on the dominant side. Dominant hand involvement results in significantly worse DASH scores, although the magnitude of this is relatively small. Women have significantly higher DASH scores than men for the conditions evaluated. [Orthopedics. 2016; 39(3):e444-e448.].

  13. Cinematic Motion by Hand

    DEFF Research Database (Denmark)

    Graca, Marina Estela

    2006-01-01

    if we could ascertain a specific ontology for animation within technology that would explain how its marginality is rooted to its essence at least in one of its forms? In this paper I will try to argue that, by overwhelming the cinematic technical standard workings with their hand, authors exposed its...... functional scheme to contingency, thus opening the production process to new unpredictable expressive and communicative possibilities. I will attempt to explain how this corresponds to a renewed way of comprehending technology by, simultaneously, revealing the human reality it contains and physiologically...

  14. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... children, parents, and public health professionals. More > Hand Hygiene Saves Lives (5:10) Recommend on Facebook Tweet Share Compartir Hand Hygiene Saves Lives Hand Hygiene Saves Lives Transcript [28 KB, 2 pages] High ...

  15. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... including, children, parents, and public health professionals. More > Hand Hygiene Saves Lives (5:10) Recommend on Facebook Tweet Share Compartir Hand Hygiene Saves Lives Hand Hygiene Saves Lives Transcript [28 KB, 2 pages] High ...

  16. Hand Hygiene Saves Lives

    Science.gov (United States)

    ... including, children, parents, and public health professionals. More > Hand Hygiene Saves Lives (5:10) Recommend on Facebook Tweet Share Compartir Hand Hygiene Saves Lives Hand Hygiene Saves Lives Transcript [28 KB, 2 pages] High ...

  17. Guideline Implementation: Hand Hygiene.

    Science.gov (United States)

    Goldberg, Judith L

    2017-02-01

    Performing proper hand hygiene and surgical hand antisepsis is essential to reducing the rates of health care-associated infections, including surgical site infections. The updated AORN "Guideline for hand hygiene" provides guidance on hand hygiene and surgical hand antisepsis, the wearing of fingernail polish and artificial nails, proper skin care to prevent dermatitis, the wearing of jewelry, hand hygiene product selection, and quality assurance and performance improvement considerations. This article focuses on key points of the guideline to help perioperative personnel make informed decisions about hand hygiene and surgical hand antisepsis. The key points address the necessity of keeping fingernails and skin healthy, not wearing jewelry on the hands or wrists in the perioperative area, properly performing hand hygiene and surgical hand antisepsis, and involving patients and visitors in hand hygiene initiatives. Perioperative RNs should review the complete guideline for additional information and for guidance when writing and updating policies and procedures.

  18. Hand-it-on”

    DEFF Research Database (Denmark)

    Dieckmann, Gerhard Peter; Graae Zeltner, Louise; Helsø, Anne-Mette

    2016-01-01

    and where they can apply them in their work. It complements existing approaches to teaching NTS by limiting the complexity of the game and by removing medical content, allowing learners to concentrate on NTS. Hand-it-on is relevant for groups and teams working across the range of different healthcare...... variations that can be used in different contexts, focusing the exercise on different learning goals. We also offer the theoretical rationale for using an out-of-context simulation in combination with other forms of teaching. Although we did not evaluate Hand-it-on formally, oral feedback from participants...... and the replication of Hand-it-on by many simulation teams support its value....

  19. Fatores associados ao retorno ao trabalho após um trauma de mão: uma abordagem qualiquantitativa Factors associated with return to work following a hand injury: a qualitative/quantitative approach

    Directory of Open Access Journals (Sweden)

    Lúcia H. A. Cabral

    2010-04-01

    Full Text Available OBJETIVOS: Descrever os trabalhadores que retornaram ao trabalho após um trauma de mão e analisar os fatores que se associaram a esse desfecho após três anos da alta da reabilitação. MÉTODOS: Foi realizado um estudo observacional, de corte transversal, com triangulação dos métodos quantitativo e qualitativo. A análise quantitativa utilizou um banco de dados com informações sociodemográficas, funcionais e clínicas referentes a 35 indivíduos, classificados em dois grupos (retornou/não retornou ao trabalho. Foi conduzida análise multivariada, utilizando o algoritmo CART (Classification and Regression Tree para avaliar o valor preditivo de quatro modelos, identificando trabalhadores que retornaram ou não ao trabalho. A partir dos resultados da análise estatística, foi elaborado um roteiro semiestruturado para as entrevistas que foram realizadas com sete trabalhadores selecionados aleatoriamente da amostra. RESULTADOS: Dos 35 trabalhadores que participaram deste estudo, 30 retornaram e cinco não retornaram ao trabalho. A maioria era do sexo masculino, com média de idade de 37 anos, casada e de baixa escolaridade. As variáveis com maior força preditiva foram força de preensão, escores do desempenho ocupacional, categoria ocupacional e idade. O estudo qualitativo confirmou a natureza multifatorial do retorno ao trabalho, demonstrando que a presença de um profissional para acompanhar o processo, alguns ajustes no posto e no horário de trabalho, possibilitando uma continuidade do tratamento, e o auxílio-acidente podem contribuir para o sucesso do retorno. CONCLUSÕES: Este estudo evidenciou a complexidade do retorno ao trabalho de trabalhadores com lesão de mão, apontando vários fatores associados a esse desfecho e a importância de uma avaliação individualizada, centrada no trabalhadorOBJECTIVES: To describe workers who returned to work after a hand injury and to analyze the factors associated with this outcome three

  20. Hand eczema in the TOACS cohort

    DEFF Research Database (Denmark)

    Mortz, C G; Bindslev-Jensen, C; Andersen, Klaus Ejner

    2014-01-01

    in women. At the clinical examination 6.4% (30/469) had hand eczema. Factors in childhood of importance for adult hand eczema were atopic dermatitis together with hand eczema. Wet work in adulthood was a risk factor together with taking care of small children at home. Interestingly, hand eczema among...... unselected young adults, was associated with sick leave/pension/rehabilitation indicating possible severe social consequences. LIMITATIONS: Only 39% participated in the clinical examination while 75% answered the questionnaire. CONCLUSIONS: A high incidence and prevalence of hand eczema was found in 28...

  1. Classification of hand eczema

    DEFF Research Database (Denmark)

    Agner, T; Aalto-Korte, K; Andersen, K E;

    2015-01-01

    BACKGROUND: Classification of hand eczema (HE) is mandatory in epidemiological and clinical studies, and also important in clinical work. OBJECTIVES: The aim was to test a recently proposed classification system of HE in clinical practice in a prospective multicentre study. METHODS: Patients were...... HE, protein contact dermatitis/contact urticaria, hyperkeratotic endogenous eczema and vesicular endogenous eczema, respectively. An additional diagnosis was given if symptoms indicated that factors additional to the main diagnosis were of importance for the disease. RESULTS: Four hundred and twenty......%) could not be classified. 38% had one additional diagnosis and 26% had two or more additional diagnoses. Eczema on feet was found in 30% of the patients, statistically significantly more frequently associated with hyperkeratotic and vesicular endogenous eczema. CONCLUSION: We find that the classification...

  2. Hand eczema in hairdressers: a Danish register-based study of the prevalence of hand eczema and its career consequences

    DEFF Research Database (Denmark)

    Lysdal, Susan Hovmand; Søsted, Heidi; Andersen, Klaus Ejner

    2011-01-01

    Occupational hand eczema is common in hairdressers, owing to wet work and hairdressing chemicals.......Occupational hand eczema is common in hairdressers, owing to wet work and hairdressing chemicals....

  3. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... public health professionals. More > Hand Hygiene Saves Lives (5:10) Recommend on Facebook Tweet Share Compartir Hand ... High resolution [22.9 MB] Open Captioned [14.5 MB] Request a higher resolution file Copy the ...

  4. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... future Salt Matters: Preserving Choice, Protecting Health More Information Hand Hygiene Clean Hands Basics Send Us Feedback ... 2013 Page last updated: November 22, 2013 Content source: Centers for Disease Control and Prevention Page maintained ...

  5. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... 22.9 MB] Open Captioned [14.5 MB] Request a higher resolution file Copy the code below ... future Salt Matters: Preserving Choice, Protecting Health More Information Hand Hygiene Clean Hands Basics Send Us Feedback ...

  6. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Tricky Treats Hygiene Fight Germs. Wash Your Hands! Go with the Flow Hand Hygiene Saves Lives Wash ... Wes Studi: Signs (:30) Traveler’s Health Way to Go Way to Go: Many Healthy Returns (4:00) ...

  7. Hands in Systemic Disease

    Science.gov (United States)

    ... Z Videos Infographics Symptom Picker Anatomy Bones Joints Muscles Nerves Vessels Tendons About Hand Surgery What is a Hand Surgeon? What is ... nerves, skin and skin-related tissues, bones, and ... a systemic diseases. The hands may show changes noticed by the patient or ...

  8. Robotic hand and fingers

    Energy Technology Data Exchange (ETDEWEB)

    Salisbury, Curt Michael; Dullea, Kevin J.

    2017-06-06

    Technologies pertaining to a robotic hand are described herein. The robotic hand includes one or more fingers releasably attached to a robotic hand frame. The fingers can abduct and adduct as well as flex and tense. The fingers are releasably attached to the frame by magnets that allow for the fingers to detach from the frame when excess force is applied to the fingers.

  9. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Matters: Preserving Choice, Protecting Health (4:30) Salt Matters: Preserving Choice, Protecting Health (2:00) Tricky Treats Hygiene Fight Germs. Wash Your Hands! Go with the Flow Hand Hygiene Saves Lives Wash Your Hands Physical Activity Knees Lifted High Making Health Easier: Active ...

  10. 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.

  11. 南昌市办公场所吸烟与二手烟暴露现况调查%Survey on the current status of smoking and Second-Hand smoking exposure in Work places in Nanchang

    Institute of Scientific and Technical Information of China (English)

    吴金星; 陈海婴; 范义兵; 杨树

    2012-01-01

    OBJECTIVE To explore the current status of smoking and Second-Hand smoking exposure in work places in Nanchang City, provide evidence for policy-making, and to promote enacting ' Non-smoking workplace' legislation. METHODS Field observation, questionnaire survey and the TSI Side Pak was used to measure indoor air PM2.5 level in workplaces. RESULTS Field observation was conducted among 29 work places, of which 2 were smoke-free places regulated by the ordinance, 16 had established smoking areas and No-smoking areas; In the smoke-free places, the percentage of smoking phenomenon ratio in (10, 50) was 50%. Among the survey workers, the general passive smoking rate was 51.9%; 60.7% of smokers smoked in the no-smoking areas, and the percentage of worker's discourage rate was only 5.9%. The average indoor air PM2.5 level was 49.7 μg/m3 in work places with complete smoke free policies, 67.6μg/m3 in work places with partial smoke free policies, 66.0μg/m3 in work places with no rules or restrictions on smoking. CONCLUSION The smoking phenomenon in the work places in Nanchang City was seriously, and the rate of Second-Hand smoking exposure to high. Anti-smoking measures was imperfect, and the charged with smoke was not sufficient. Need to enhance smoker's awareness of the harm of smoking and Second-Hand smoking, and enter corresponding "Non-smoking workplace" local code and legislation.%目的 了解南昌市办公场所吸烟和二手烟暴露情况,为政府决策提供依据,促进“无烟工作场所”立法.方法 采用现场观察,问卷拦截调查和对工作场所空气中PM2.5浓度进行监测等方法,分析南昌市办公场所吸烟和二手烟暴露情况.结果 现场观察了29家办公场所,禁烟场所2家,16家场所划分了吸烟区和非吸烟区;全面禁烟场所吸烟现象比例在(10,50]的分布为50%.被调查工作人员中,有51.9%在工作单位受到二手烟的侵害;有60.7%的吸烟者在工作场所的非吸烟区内吸

  12. Working Status and Influencing Factors of Return to Work In Occupational Hand Inj ury Pa-tients in Suichang%遂昌县职业性手外伤患者回归工作状况及其影响因素

    Institute of Scientific and Technical Information of China (English)

    章彤云; 朱俊峰; 王启斌; 赵晓梅

    2014-01-01

    探讨遂昌县职业性手外伤患者的回归工作情况及其影响因素.方法便利选取2012年6月至2013年6月在遂昌县人民医院住院治疗的192例职业性手外伤患者,记录患者的一般资料,并于出院前评估患者的希望水平,伤后3个月随访其回归工作的情况.结果截至伤后3个月,有122例(63.5%)患者回归工作,缺勤时间中位数为28 d(13~86 d). Logistic多元回归分析显示,伤后对家庭总收入水平的影响、受伤部位、手外伤严重程度和希望水平是职业性手外伤患者未回归工作的独立影响因素(均P<0.05).结论遂昌县职业性手外伤患者的回归工作率较低,生物、心理、社会因素均能影响患者的回归,而针对性的心理护理将有助于患者更好地回归工作.%Objective To discuss the working status and influencing factors of return to work in occupa-tional hand injury patients in Suichang.Methods Totally 192 individuals diagnosed with occupational hand inju-ries were randomly selected.The general information were recorded,level of hope were assessed before discharged, and the status of return to work was followed up at 3 months after inj ury.Results 1 2 2 cases (6 3.5%)returned to work,and the median absenteeism duration was 28 days (13-86 days).Logistic regression analysis showed that the impact of inj ury on the family income level,the inj ured region,hand inj ury severity and the level of hope were independent risk factors for failing to return to work (all P<0.05).Conclusion Occupational hand injury patients in area of Suichang have a lower rate of return to work.Biological,psychological and social factors can affect the patient’s return to work.Targeted psychological care measures will better help patients to return to work.

  13. Underactuated hands: fundamentals, performance analysis and design

    NARCIS (Netherlands)

    Kragten, G. A.

    2011-01-01

    There is an emerging need to apply adaptive robotic hands to substitute humans in dangerous, laborious, or monotonous work. The state-of-the-art robotic hands cannot fulfill this need, because they are expensive, hard to control and they consist of many vulnerable motors and sensors. It is aimed to

  14. Hand eczema classification

    DEFF Research Database (Denmark)

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

    2008-01-01

    Summary Background Hand eczema is a long-lasting disease with a high prevalence in the background population. The disease has severe, negative effects on quality of life and sometimes on social status. Epidemiological studies have identified risk factors for onset and prognosis, but treatment...... of 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...... for hand eczema is needed. Objectives The present study attempts to characterize subdiagnoses of hand eczema with respect to basic demographics, medical history and morphology. Methods Clinical data from 416 patients with hand eczema from 10 European patch test clinics were assessed. Results...

  15. The alien hand syndrome

    Science.gov (United States)

    Panikkath, Deepa; Mojumder, Deb; Nugent, Kenneth

    2014-01-01

    A 77-year-old woman presented with the complaint of observing her left hand moving without her knowledge while watching television. Her left hand stroked her face and hair as if somebody was controlling it. These movements lasted only half an hour but on recovery, she had left hemiparesis. Alien hand syndrome as the presentation of cardioembolic stroke is extremely rare but can be terrifying to patients. PMID:24982566

  16. 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. Copyright © 2016 Elsevier Inc. All rights reserved.

  17. [Optimizing surgical hand disinfection].

    Science.gov (United States)

    Kampf, G; Kramer, A; Rotter, M; Widmer, A

    2006-08-01

    For more than 110 years hands of surgeons have been treated before a surgical procedure in order to reduce the bacterial density. The kind and duration of treatment, however, has changed significantly over time. Recent scientific evidence suggests a few changes with the aim to optimize both the efficacy and the dermal tolerance. Aim of this article is the presentation and discussion of new insights in surgical hand disinfection. A hand wash should be performed before the first disinfection of a day, ideally at least 10 min before the beginning of the disinfection as it has been shown that a 1 min hand wash significantly increases skin hydration for up to 10 min. The application time may be as short as 1.5 min depending on the type of hand rub. Hands and forearms should be kept wet with the hand rub for the recommended application time in any case. A specific rub-in procedure according to EN 12791 has been found to be suitable in order to avoid untreated skin areas. The alcohol-based hand rub should have a proven excellent dermal tolerance in order to ensure appropriate compliance. Considering these elements in clinical practice can have a significant impact to optimize the high quality of surgical hand disinfection for prevention of surgical site infections.

  18. Efficient human hand kinematics for manipulation tasks

    OpenAIRE

    Cobos Guzmán, Salvador; Ferre Perez, Manuel; Sanchez-Uran Gonzalez, Miguel Angel; Ortego la Moneda, Javier; Peña, César

    2008-01-01

    This work is focused on obtaining efficient human hand models that are suitable for manipulation tasks. A 24 DoF kinematic model of the human hand is defined to realistic movements. This model is based on the human skeleton. Dynamic and Static constraints have been included in order to improve the movement realism. Two simplified hand models with 9 and 6 DoF have been developed according to the constraints predefined. These simplified models involve some errors in reconstructing the hand post...

  19. [Hand surgery training].

    Science.gov (United States)

    Moutet, F; Haloua, J P

    2003-10-01

    Training of the hand surgeon HAND SURGEON A CONCEPT: The hand surgeon is supposed to be in charge of all the hand lesions regarding, skeleton, muscles, tendons, nerves and vessels. He has to be able to insure reparation and coverage of all of them. So he is involved in all the structures, which insure integrity and function of the hand. PURPOSE AND WAYS OF TRAINING: To obtain the asked ability, the hand surgeon training has to be global and sustained by two underlying surgical specialities: orthopedic surgery and plastic and reconstructive surgery. From 2000 after many years of dealings, a Right to the Title in Hand Surgery was born. This Right to the Title wants to be the formal recognition of the specific training of the hand surgeon. For the well-recognized ancient hand surgeons they need to be confirmed by one's peers. Now a day the hand surgeon has to satisfy to this specific training: Passed the complete training and exam of the Orthopedic or Plastic surgery board. Spent at least 6 months as resident in the other underlying specialty. Passed a microsurgery examination. Passed one of the four national Hand Surgery diplomas (DIU/Inter-Universitary Diploma). The examinations have been harmonized. A common formation is delivered regarding hand surgery, the way of examination is the same and the formation is 2 years long. The final exam is presented in front of board of examiners where a teacher of one of the other three national diplomas is present. Spent at least 2 years in a formative hand surgery unit, listed by the French College of Hand Surgeons, as senior surgeon. Those requirements are heavy to assume and need a heavy personal involvement. That seems to be necessary to have an ability level as high as possible. Emergency surgery practice is absolutely necessary in this training. All the 17 university formative hand surgery units listed by the French College of Hand Surgeons are members of the FESUM (European Federation of the Emergency Hand Units

  20. Hands as markers of fragmentation

    Directory of Open Access Journals (Sweden)

    A. Barnard

    2005-07-01

    Full Text Available Margaret Atwood is an internationally read, translated, and critiqued writer whose novels have established her as one of the most esteemed authors in English (McCombs & Palmer, 1991:1. Critical studies of her work deal mainly with notions of identity from psychoanalytical perspectives. This study has identified a gap in current critical studies on Atwood’s works, namely the challenging of textual unity which is paralleled in the challenging of the traditional (single narrative voice. The challenging of textual unity and the single narrative voice brings about the fragmentation of both. This article will focus on the role that hands play as markers of fragmentation in “The Blind Assassin” (2000. In the novel, the writing hand destabilises the narrative voice, since it is not connected to the voice of a single author. If the author of the text – the final signified – is eliminated, the text becomes fragmentary and open, inviting the reader to contribute to the creation of meaning. Hands play a signficant role in foregrounding the narrator’s fragmented identity, and consequently, the fragmentation of the text. We will investigate this concept in the light of Roland Barthes’ notion of the scriptor, whose hand is metaphorically severed from his or her “voice”. Instead of the text being a unified entity, it becomes unstable and it displays the absence of hierarchical textual levels. Based mainly on Barthes’ writings, this article concludes that hands foreground the narrator’s fragmented identity, which is paralleled in the fragmented text.

  1. Wash Your Hands

    Science.gov (United States)

    ... don't have soap and clean, running water? Washing hands with soap and water is the best way to get rid of germs in most situations. If soap and water are not available, use an alcohol-based hand sanitizer [423 KB] that contains at least 60% alcohol. ...

  2. Pneumatically actuated hand tool

    NARCIS (Netherlands)

    Cool, J.C.; Rijnsaardt, K.A.

    1996-01-01

    Abstract of NL 9401195 (A) Pneumatically actuated hand tool for carrying out a mechanical operation, provided with an exchangeable gas cartridge in which the gas which is required for pneumatic actuation is stored. More particularly, the hand tool is provided with at least one pneumatic motor, at

  3. HAND INJURIES IN VOLLEYBALL

    NARCIS (Netherlands)

    BHAIRO, NH; NIJSTEN, MWN; VANDALEN, KC; TENDUIS, HJ

    We studied the long-term sequelae of hand injuries as a result of playing volleyball. In a retrospective study, 226 patients with injuries of the hand who were seen over a 5-year period at our Trauma Department, were investigated. Females accounted for 66 % of all injuries. The mean age was 26

  4. Hand measuring eqipment

    DEFF Research Database (Denmark)

    De Chiffre, Leonardo

    This note is used in connection with a 3 x 2 hours laboratory exercise as a part of the course GEOMETRICAL METROLOGY AND MACHINE TESTING. The laboratory includes a demonstration of a series of hand measuring tools as well as a number of exercises, illustrating the use of hand measuring equipment...

  5. HAND INJURIES IN VOLLEYBALL

    NARCIS (Netherlands)

    BHAIRO, NH; NIJSTEN, MWN; VANDALEN, KC; TENDUIS, HJ

    1992-01-01

    We studied the long-term sequelae of hand injuries as a result of playing volleyball. In a retrospective study, 226 patients with injuries of the hand who were seen over a 5-year period at our Trauma Department, were investigated. Females accounted for 66 % of all injuries. The mean age was 26 years

  6. Comfort in using hand tools : theory, design and evaluation

    OpenAIRE

    Kuijt-Evers, L.F.M.

    2007-01-01

    Everyone uses hand tools in their daily life, like knife and fork. Moreover, many people use hand tools in their profession as well as during leisure time. It is important that they can work with hand tools that provide comfort. Until now, the avoidance of discomfort was emphasized during the design process of hand tools, like screwdrivers, hand saws and paint brushes. In the near future, the focus will shift towards providing comfort. However, some questions need to be answered to make this ...

  7. Hand Hygiene: When and How

    Science.gov (United States)

    ... handrub? How to handwash? RUB HANDS FOR HAND HYGIENE! WASH HANDS WHEN VISIBLY SOILED Duration of the entire procedure: ... from its use. When? YOUR 5 MOMENTS FOR HAND HYGIENE 1 BEFORETOUCHINGA PATIENT 2 B P ECFLOER R ...

  8. Occupational hand injury patterns at Avicenna University Hospital

    Directory of Open Access Journals (Sweden)

    Abdelmoughit Echchaoui

    2017-08-01

    Conclusion: Hand injuries are common in the workplace and affect mostly active and working-age people. Preventive measures are required and should receive appropriate attention and resources. [Hand Microsurg 2017; 6(2.000: 75-80

  9. New optimum humanoid hand design for prosthetic applications.

    Science.gov (United States)

    El-Sheikh, Mogeeb A; Taher, Mona F; Metwalli, Sayed M

    2012-04-30

    To address the need for a commercially feasible prosthetic hand, the current work presents the design of a new humanoid hand actuated using shape memory alloy (SMA) artificial muscle wires. The hand has 3 compliant fingers and a thumb attached to the palm. The palm structure is a novel design, which is based on the natural arches of the human hand to provide better grasping capabilities. A compact actuator module is proposed to house and cool the SMA wires. Design parameters of the hand were selected to maximize the work density. The hand is lightweight, low cost, and operates silently. It has functional opening and closing speeds and fingertip force.

  10. Factors associated with combined hand and foot eczema Associations between foot and hand eczema

    DEFF Research Database (Denmark)

    Agner, T; Aalto-Korte, K; Andersen, K E;

    2017-01-01

    BACKGROUND: As for hand eczema, the etiology of foot eczema is multifactorial, and not very well understood. The aim of the present study was to identify factors associated with foot eczema in a cohort of hand eczema patients being classified into different subgroups. METHODS: Associations between...... foot and hand eczema was studied in a cross sectional design in a cohort of hand eczema patients. Consecutive patients were recruited from 9 different European Centres during the period October 2011 - September 2012. Data on demographic factors, presence of foot eczema, hand eczema duration...... and severity, and whether the hand eczema was work-related or not were available, as well as patch-test results. RESULTS: Of a total of 427 hand eczema patients identified, information on foot eczema was available in 419 patients who were included in the present study. 125 patients (29.8 %) had concomitant...

  11. About Hand Surgery

    Science.gov (United States)

    ... us eat, dress, write, earn a living, create art and do many other activities. To accomplish these ... 2009 American Society for Surgery of the Hand. Definition developed by ASSH Council. Other Links CME Mission ...

  12. Osteoarthritis of the Hand

    Science.gov (United States)

    ... Therapist? Media Find a Hand Surgeon Home Anatomy Osteoarthritis Email to a friend * required fields From * To * ... for those with osteoarthritis. TREATMENT The Diagnosis of Osteoarthritis When diagnosing osteoarthritis, your doctor will ask you ...

  13. Stiffness in the Hand

    Science.gov (United States)

    ... include: Arthritis Fractures Dislocations Bad sprains Tendon and muscle injuries Evaluating Hand Stiffness Your doctor will ask when the stiffness ... scan. CAUSES SIGNS AND ... stretching exercises for the joints and muscles to help loosen them. Different types of splints ...

  14. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... captioning. Videos are prepared for different audiences including, children, parents, and public health professionals. More > Hand Hygiene ... captioning. Videos are prepared for different audiences including, children, parents, and public health professionals. More > File Formats ...

  15. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... get more than a million infections in the hospital while being treated for something else. The best ... reminding healthcare providers to practice hand hygiene in hospitals and other healthcare facilities. Release Date: 8/4/ ...

  16. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... To Health (4:17) Vital Signs High Blood Pressure Spanish Diseases & Conditions Hablemos de la Influenza Influenza ... Videos are prepared for different audiences including, children, parents, and public health professionals. More > Hand Hygiene Saves ...

  17. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Lives shows how patients can play an active role in reminding healthcare providers to practice hand hygiene ... Director for Communication, Division of News and Electronic Media Email Recommend Tweet YouTube Instagram Listen Watch RSS ...

  18. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Please Parents Want To Do What′s Best The Obesity Epidemic Outbreaks CDC: Protecting Americans through Global Health ... captioning. Videos are prepared for different audiences including, children, parents, and public health professionals. More > Hand Hygiene ...

  19. Hand lotion poisoning

    Science.gov (United States)

    ... lotion or cream can be harmful if swallowed: Dimethicone Mineral oil Paraffins (waxes) Petrolatum Various alcohols Where ... Hand cream poisoning References Caraccio TR, McFee RB. Cosmetics and toilet articles. In: Shannon MW, Borron SW, ...

  20. Second Hand Smoke: Danger

    Science.gov (United States)

    ... What's this? Submit Button Past Emails Second Hand Smoke: Danger! Recommend on Facebook Tweet Share Compartir Make ... the United States are still exposed to secondhand smoke, even though cigarette smoking rates are dropping and ...

  1. Mind the hand

    DEFF Research Database (Denmark)

    Davidsen, Jacob; Christiansen, Ellen Tove

    2014-01-01

    , to construct and problem solve, and to show and imitate. The analyses show how a space emerges from the interaction between the children and the touchscreen, and how their hand movements reveal intelligence-as-action. Three situations with three different pairs were analysed to explore how children use......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...... their hands in activities around touchscreens, focusing in particular on how they collaborate. The analysis presented here is part of a research study on the use of touchscreens in children’s embodied and multimodal collaborative learning activities in their everyday classrooms. The general aim of the study...

  2. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Thinking The Value of Systems Thinking (10:09) Systems Mapping: The Basics ... how patients can play an active role in reminding healthcare providers to practice hand hygiene in hospitals and ...

  3. Evolution of one-handed piano compositions.

    Science.gov (United States)

    Drozdov, Ignat; Kidd, Mark; Modlin, Irvin M

    2008-01-01

    Electronic searches were performed to investigate the evolution of one-handed piano compositions and one-handed music techniques, and to identify individuals responsible for the development of music meant for playing with one hand. Particularly, composers such as Liszt, Ravel, Scriabin, and Prokofiev established a new model in music by writing works to meet the demands of a variety of pianist-amputees that included Count Géza Zichy (1849-1924), Paul Wittgenstein (1887-1961), and Siegfried Rapp (b. 1915). Zichy was the first to amplify the scope of the repertoire to improve the variety of one-handed music; Wittgenstein developed and adapted specific and novel performance techniques to accommodate one-handedness; and Rapp sought to promote the stature of one-handed pianists among a musically sophisticated public able to appreciate the nuances of such maestros.

  4. 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

  5. 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.

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

    Science.gov (United States)

    Kapil, R; Bhavsar, H K; Madan, M

    2015-01-01

    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. 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. 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. 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 active education by demonstrating the proper hand hygiene technique

  7. 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

  8. Hand hygiene in emergency medical services.

    Science.gov (United States)

    Teter, Jonathan; Millin, Michael G; Bissell, Rick

    2015-01-01

    Hospital-acquired infections (HAIs) affect millions of patients annually (World Health Organization. Guidelines on Hand Hygiene in Healthcare. Geneva: WHO Press; 2009). Hand hygiene compliance of clinical staff has been identified by numerous studies as a major contributing factor to HAIs around the world. Infection control and hand hygiene in the prehospital environment can also contribute to patient harm and spread of infections. Emergency medical services (EMS) practitioners are not monitored as closely as hospital personnel in terms of hand hygiene training and compliance. Their ever-changing work environment is less favorable to traditional hospital-based aseptic techniques and education. This study aimed to determine the current state of hand hygiene practices among EMS providers and to provide recommendations for improving practices in the emergency health services environment. This study was a prospective, observational prevalence study and survey, conducted over a 2-month period. We selected participants from visits to three selected hospital emergency departments in the mid-Atlantic region. There were two data components to the study: a participant survey and hand swabs for pathogenic cultures. This study recruited a total sample of 62 participants. Overall, the study revealed that a significant number of EMS providers (77%) have a heavy bacterial load on their hands after patient care. All levels of providers had a similar distribution of bacterial load. Survey results revealed that few providers perform hand hygiene before (34%) or in between patients (24%), as recommended by the Centers for Disease Control and Prevention guidelines. This study demonstrates that EMS providers are potential vectors of microorganisms if proper hand hygiene is not performed properly. Since EMS providers treat a variety of patients and operate in a variety of environments, providers may be exposed to potentially pathogenic organisms, serving as vectors for the exposure of

  9. Hand and power tools: A compilation

    Science.gov (United States)

    1976-01-01

    Some hand and power tools were described. Section One describes several tools and shop techniques that may be useful in the home or commercial shop. Section Two contains descriptions of tools that are particularly applicable to industrial work, and in Section Three a number of metal working tools are presented.

  10. Guidelines for hand hygiene in hospital

    Directory of Open Access Journals (Sweden)

    Christina Sotnikova

    2013-10-01

    Full Text Available The appropriate compliance of rules regarding hand hygiene, have been and continue to be, one of the basic points of all prevention programs of nosocomial infections. Aim: The aim of the present study was the presentation of guidelines for hand hygiene by nurses. Method and material: Study of international and Greek literature from electronic databases Medline, PubMed and scientific journals, KEELPNO mainly from the last three years. The keywords used were: nosocomial infections, hand hygiene, antiseptics and guidelines. Results: There are numerous studies that demonstrate the central role of hand hygiene of employees in transmission of microorganisms in the hospital environment. Hand hygiene is a process, which should not be omitted or replaced by the use of antiseptics. The professionals position in the hospital, the workplace and staff shortages, in conjunction with the large number of hospitalized patients seem to be the main factors that negatively affect the compliance with hand hygiene. The staff working in the hospital, especially with high-risk patients (ICU, surgery should not wear artificial nails, nail polish and jewelry - rings and should not have inflammation or infection on their hands. Conclusions: Hand hygiene should be applied before and after contact with each patient. Nurses have to comply with these guidelines, in order for the effective prevention and control of nosocomial infections.

  11. Therapy after injury to the hand.

    Science.gov (United States)

    Dorf, Erik; Blue, Carla; Smith, Beth P; Koman, L Andrew

    2010-08-01

    Surgical and nonsurgical management of upper extremity disorders benefits from the collaboration of a therapist, the treating physician, and the patient. Hand therapy plays a role in many aspects of treatment, and patients with upper extremity injuries may spend considerably more time with a therapist than with a surgeon. Hand therapists coordinate edema control; pain management; minimization of joint contractures; maximization of tendon gliding, strengthening, and work hardening; counseling; and ongoing diagnostic evaluation. Modalities used to manage hand injuries include ultrasound, splinting, Fluidotherapy (Chattanooga Group, Chattanooga, TN), cryotherapy, various electrical modalities, phonophoresis, and iontophoresis.

  12. Right-handed and left-landed

    Institute of Scientific and Technical Information of China (English)

    李悦

    2005-01-01

    Today about 15% of the number of people is left-handed.But why are people left-handed? The answer is the way the brain (大脑) works.The brain has two halves——the right half and the left half.The right half controls (控制)the left side of the body,and the left controls the right side of the body.

  13. Comfort in using hand tools: theory, design and evaluation

    NARCIS (Netherlands)

    Kuijt-Evers, L.F.M.

    2007-01-01

    Everyone uses hand tools in their daily life, like knife and fork. Moreover, many people use hand tools in their profession as well as during leisure time. It is important that they can work with hand tools that provide comfort. Until now, the avoidance of discomfort was emphasized during the desig

  14. Three-Fingered Robot Hand

    Science.gov (United States)

    Ruoff, C. F.; Salisbury, J. K.

    1984-01-01

    Mechanical joints and tendons resemble human hand. Robot hand has three "human-like" fingers. "Thumb" at top. Rounded tips of fingers covered with resilient material provides high friction for griping. Hand potential as prosthesis for humans.

  15. 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.

  16. Skin irritation and dryness associated with two hand-hygiene regimens: soap-and-water hand washing versus hand antisepsis with an alcoholic hand gel.

    Science.gov (United States)

    Boyce, J M; Kelliher, S; Vallande, N

    2000-07-01

    To compare the frequency of skin irritation and dryness associated with using an alcoholic-hand-gel regimen for hand antisepsis versus using soap and water for hand washing. Prospective randomized trial with crossover design. Irritation and dryness of nurses' hands were evaluated by self-assessment and by visual assessment by a study nurse. Epidermal water content of the dorsal surface of nurses' hands was estimated by measuring electrical capacitance of the skin. Miriam Hospital, a 200-bed university-affiliated teaching hospital. Thirty-two nurses working on three hospital wards participated in the trial, which lasted 6 weeks. Self-assessment scores of skin irritation and dryness decreased slightly during the 2 weeks when nurses used the alcoholic-hand-gel regimen (mean baseline score, 2.72; mean final score, 2.0; P=.08) but increased substantially during the 2 weeks when nurses used soap and water (mean baseline score, 2.0; mean final score, 4.8; Phand-gel regimen was used (mean baseline and final scores were both 0.55), but scores increased substantially when nurses used soap and water (baseline score, 0.59; mean final score, 1.21; P=.05). Epidermal water content of the dorsal surface of nurses' hands changed little when the alcoholic-hand-gel regimen was used (mean+/-standard deviation baseline electrical capacitance reading, 24.8+/-6.8; mean final reading, 25.7+/-7.3), but decreased significantly (skin became dryer) with soap-and-water hand washing (mean baseline, 25.9+/-7.5; mean final reading, 20.5+/-5.4; P=.0003). Hand antisepsis with an alcoholic-hand-gel regimen was well tolerated and did not result in skin irritation and dryness of nurses' hands. In contrast, skin irritation and dryness increased significantly when nurses washed their hands with the unmedicated soap product available in the hospital. Newer alcoholic hand gels that are tolerated better than soap may be more acceptable to staff and may lead to improved hand-hygiene practices.

  17. 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.

  18. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... practice hand hygiene in hospitals and other healthcare facilities. Release Date: 8/4/2010 Source: Healthcare-associated ... choose "Save target as…", save file in desired location. Firefox/Chrome: Right-click on the link, choose " ...

  19. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... CDC-TV videos cover a variety of health, safety and preparedness topics and include closed-captioning. Videos are prepared for different audiences including, children, parents, and public health professionals. More > Hand Hygiene Saves Lives (5:10) Recommend on Facebook Tweet ...

  20. De hand van Huizinga

    NARCIS (Netherlands)

    Huizinga, Johan

    2009-01-01

    De hand van Huizinga bevat een nieuwe selectie van de belangrijkste essays uit het omvangrijke oeuvre van de wereldberoemde Nederlandse historicus Johan Huizinga. Deze essays en studies zijn geselecteerd op basis van de diverse disciplines waarmee Huizinga zich bezighield - van de Middeleeuwen tot

  1. Shanghai Hand Puppet Tcoupe

    Institute of Scientific and Technical Information of China (English)

    1993-01-01

    PUPPETRY n ancient artform, has had difficulties ca-tering to children’s aesthet-ic needs and perceptions.ShanghaiHand Puppet Troupe has,however,successfully reached children audi-ences with its new science fictlonpiece,Nuozha Meets the Inhabitants of Tai star.

  2. Hands-On Hydrology

    Science.gov (United States)

    Mathews, Catherine E.; Monroe, Louise Nelson

    2004-01-01

    A professional school and university collaboration enables elementary students and their teachers to explore hydrology concepts and realize the beneficial functions of wetlands. Hands-on experiences involve young students in determining water quality at field sites after laying the groundwork with activities related to the hydrologic cycle,…

  3. Passive hand prostheses.

    Science.gov (United States)

    Soltanian, Hooman; de Bese, Genevieve; Beasley, Robert W

    2003-02-01

    For many mangled hands, appropriately designed passive prostheses now available, alone or in conjunction with surgical reconstruction, can offer the best available improvement, provided they are of high quality and backed by prompt and reliable after-delivery services. Invariably, there is improvement in physical capability along with restoration of good social presentation.

  4. 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.

  5. Hands-On Hydrology

    Science.gov (United States)

    Mathews, Catherine E.; Monroe, Louise Nelson

    2004-01-01

    A professional school and university collaboration enables elementary students and their teachers to explore hydrology concepts and realize the beneficial functions of wetlands. Hands-on experiences involve young students in determining water quality at field sites after laying the groundwork with activities related to the hydrologic cycle,…

  6. Rotationally Actuated Prosthetic Hand

    Science.gov (United States)

    Norton, William E.; Belcher, Jewell G., Jr.; Carden, James R.; Vest, Thomas W.

    1991-01-01

    Prosthetic hand attached to end of remaining part of forearm and to upper arm just above elbow. Pincerlike fingers pushed apart to degree depending on rotation of forearm. Simpler in design, simpler to operate, weighs less, and takes up less space.

  7. Hand chemical burns.

    Science.gov (United States)

    Robinson, Elliot P; Chhabra, A Bobby

    2015-03-01

    There is a vast and ever-expanding variety of potentially harmful chemicals in the military, industrial, and domestic landscape. Chemical burns make up a small proportion of all skin burns, yet they can cause substantial morbidity and mortality. Additionally, the hand and upper extremity are the most frequently involved parts of the body in chemical burns, and therefore these injuries may lead to severe temporary or permanent loss of function. Despite this fact, discussion of the care of these injuries is sparse in the hand surgery literature. Although most chemical burns require only first response and wound care, some require the attention of a specialist for surgical debridement and, occasionally, skin coverage and reconstruction. Exposure to certain chemicals carries the risk of substantial systemic toxicity and even mortality. Understanding the difference between thermal and chemical burns, as well as special considerations for specific compounds, will improve patient treatment outcomes.

  8. 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.

  9. A study of yeast carriage on hands of hospital personnel.

    Science.gov (United States)

    Kumar, S; Batra, R

    2000-01-01

    The present study was conducted by culture with a modified broth wash technique to examine the frequency of yeast carriage on the hands of 60 nurses and 35 nonnursing hospital employees. Seventy two percent of the nurses and 80% of the nonnurses were harbouring yeast on their hands. Candida spp. were isolated in 57% on of nurses and 34% of nonnurses. Ninety percent of nurses working in nursing home care unit (NHCU), 50% working in intensive care unit (ICU) and 75% working in outpatient department (OPD) carried yeasts on their hands. Only 80% of nonnurses staff harboured yeasts on their hands.

  10. Tying the Manager's Hands

    DEFF Research Database (Denmark)

    Foss, Kirsten; Foss, Nicolai Juul; Vázquez-Vicente, Xosé H.

    2003-01-01

    AbstractWe discuss and empirically examine a firm-level equivalent of the ancient problem of `tying the King's hands,' namely how to maximize managerial intervention for `good cause,' while avoiding intervention for `bad cause.' Managers may opportunistically intervene when such intervention...... produces private benefits. Overall firm performance is harmed as a result, because opportunistic managerial intervention harms employee motivation. The central point of the paper is that various mechanisms and factors, such as managers staking their personal reputation, employees controlling important...

  11. Pediatric hand treadmill injuries.

    Science.gov (United States)

    Banever, Gregory T; Moriarty, Kevin P; Sachs, Barry F; Courtney, Richard A; Konefal, Stanley H; Barbeau, Lori

    2003-07-01

    The great popularity of physical fitness in modern society has brought many pieces of exercise equipment into our homes for convenience and privacy. This trend has come with an increasing rate of injuries to children who curiously touch moving parts, including treadmill belts. Experience with a recent series of treadmill contact burns to children's hands is described in this article. A retrospective chart review at a tertiary referral center from June 1998 until June 2001 found six children sustaining hand burns from treadmills. The patients' ages at presentation ranged from 15 to 45 months (average of 31 months, three boys and three girls). All injuries occurred in the home while a parent was using the treadmill. Burns involved the palmar aspect of the hand, mostly confined to the fingers, and the severity ranged from partialto full-thickness burns. All patients were initially managed with collagenase and bacitracin zinc/polymyxin B powder dressings to second- and third-degree burns, along with splinting and range-of-motion exercises. Two patients required skin grafting at 2 weeks and 2 months for full-thickness tissue loss and tight joint contracture, respectively. At an average follow-up of 12 months, all patients had full range of motion and no physical limitation. The rate of children injured by exercise equipment is expected to increase. Friction burns to the hands remain a concern, although early recognition and appropriate management are associated with excellent functional outcomes. Protective modification of exercise machines seems to be the best approach to eliminating these injuries.

  12. Hand Hygiene Saves Lives

    Medline Plus

    Full Text Available ... Vital Signs Vital Signs – Presión Arterial Alta Other Languages Arabic احصل على التطعيم لتجنب الحصبة French Faites- ... captioning. Videos are prepared for different audiences including, children, parents, and public health professionals. More > Hand Hygiene ...

  13. Compact Dexterous Robotic Hand

    Science.gov (United States)

    Lovchik, Christopher Scott (Inventor); Diftler, Myron A. (Inventor)

    2001-01-01

    A compact robotic hand includes a palm housing, a wrist section, and a forearm section. The palm housing supports a plurality of fingers and one or more movable palm members that cooperate with the fingers to grasp and/or release an object. Each flexible finger comprises a plurality of hingedly connected segments, including a proximal segment pivotally connected to the palm housing. The proximal finger segment includes at least one groove defining first and second cam surfaces for engagement with a cable. A plurality of lead screw assemblies each carried by the palm housing are supplied with power from a flexible shaft rotated by an actuator and output linear motion to a cable move a finger. The cable is secured within a respective groove and enables each finger to move between an opened and closed position. A decoupling assembly pivotally connected to a proximal finger segment enables a cable connected thereto to control movement of an intermediate and distal finger segment independent of movement of the proximal finger segment. The dexterous robotic hand closely resembles the function of a human hand yet is light weight and capable of grasping both heavy and light objects with a high degree of precision.

  14. "Virtual unwrapping" of a mummified hand.

    Science.gov (United States)

    Winder, R J; Glover, W; Golz, T; Wulf, J; McClure, S; Cairns, H; Elliott, M

    2006-01-01

    The purpose of this work is to demonstrate the feasibility of medical virtual reality technologies in the investigation of a mummified hand. The Ulster Museum obtained the mummy hand, which originated from Thebes, without any identifying information. The mummified hand was investigated using conventional X-ray and 3D multi-slice Computed Tomography (CT). Imaging revealed a range of fractures of the wrist, metacarpals and phalanges whilst 3D CT demonstrated internal structures using volume rendering. The absence of any features of bone healing at the fracture sites would imply that they occurred just prior to death or in the mummified state possibly during excavation. Conventional X-ray imaging indicated that the hand, although small, was likely to have originated from an adult. Medical imaging and virtual reality display will enable us to produce a rapid prototyped model using fused deposition technology. Therefore, further paleopathological research can be performed on the replica without the need to handle the original specimen.

  15. Performance Comparison Between FEDERICA Hand and LARM Hand

    Directory of Open Access Journals (Sweden)

    Giuseppe Carbone

    2015-07-01

    Full Text Available This paper describes two robotic hands that have been developed at University Federico II of Naples and at the University of Cassino. FEDERICA Hand and LARM Hand are described in terms of design and operational features. In particular, careful attention is paid to the differences between the above-mentioned hands in terms of transmission systems. FEDERICA Hand uses tendons and pulleys to drive phalanxes, while LARM Hand uses cross four-bar linkages. Results of experimental tests are reported to show how key design issues affect each robotic hand’s performance.

  16. Human hand descriptions and gesture recognition for object manipulation.

    Science.gov (United States)

    Cobos, Salvador; Ferre, Manuel; Sánchez-Urán, M Ángel; Ortego, Javier; Aracil, Rafael

    2010-06-01

    This work focuses on obtaining realistic human hand models that are suitable for manipulation tasks. A 24 degrees of freedom (DoF) kinematic model of the human hand is defined. The model reasonably satisfies realism requirements in simulation and movement. To achieve realism, intra- and inter-finger constraints are obtained. The design of the hand model with 24 DoF is based upon a morphological, physiological and anatomical study of the human hand. The model is used to develop a gesture recognition procedure that uses principal components analysis (PCA) and discriminant functions. Two simplified hand descriptions (nine and six DoF) have been developed in accordance with the constraints obtained previously. The accuracy of the simplified models is almost 5% for the nine DoF hand description and 10% for the six DoF hand description. Finally, some criteria are defined by which to select the hand description best suited to the features of the manipulation task.

  17. Back to basics: hand hygiene and surgical hand antisepsis.

    Science.gov (United States)

    Spruce, Lisa

    2013-11-01

    Health care-associated infections (HAIs) are a significant issue in the United States and throughout the world, but following proper hand hygiene practices is the most effective and least expensive way to prevent HAIs. Hand hygiene is inexpensive and protects patients and health care personnel alike. The four general types of hand hygiene that should be performed in the perioperative environment are washing hands that are visibly soiled, hand hygiene using alcohol-based products, surgical hand scrubs, and surgical hand scrubs using an alcohol-based surgical hand rub product. Barriers to proper hand hygiene may include not thinking about it, forgetting, skin irritation, a lack of role models, or a lack of a safety culture. One strategy for improving hand hygiene practices is monitoring hand hygiene as part of a quality improvement project, but the most important aspect for perioperative team members is to set an example for other team members by following proper hand hygiene practices and reminding each other to perform hand hygiene.

  18. Management of Hand Burns

    Directory of Open Access Journals (Sweden)

    Fatih Irmak

    2017-09-01

    Full Text Available Objective: The hand is one of the most frequently affected body parts by burn injuries with a rate of 80% among all burn wounds. Early and effective treatment ensures the best chance of survival as well as a good functional prognosis. The aim of this study was to determine the epidemiology, variation, relationship between etiology and hospital stay, clinical features, and management of hand burns. Material and Methods: This retrospective study was conducted the University of Health Sciences; Şişli Hamidiye Etfal Application and Research Center, Departmant of Plastic, Reconstructive and Aesthetic Surgery and the Intensive Burn Care Unit between April 2009 and April 2014. Burns were assessed based on etiology, anatomical location, percentage of total body surface area affected, and depth of injury. Treatment was categorized as conservative, elective operative, or urgent operative. Results: In the study period, 788 patients were admitted to our Burn Unit. Of these, 240 were females (30.5% and 548 were males (69.5%. The most common type of burn injury in this study was thermal injury (695 cases; 88.2%, followed by electrical injury (67 cases; 8.5%, and chemical, frictional or unknown injuries (26 cases; 3.3%. Majority (more than 85% of the patients had second-degree burns, and some had third-degree burns. Conclusions: Burns commonly affect the hands, and many functional problems may develop if appropriate basic treatments are neglected. The best treatment for burns is prevention. Appropriate indoor arrangement and simple but effective measures that can be taken at home can significantly reduce burn trauma exposure.

  19. 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......-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 to mid...

  20. Recognizing the Operating Hand and the Hand-Changing Process for User Interface Adjustment on Smartphones.

    Science.gov (United States)

    Guo, Hansong; Huang, He; Huang, Liusheng; Sun, Yu-E

    2016-08-20

    As the size of smartphone touchscreens has become larger and larger in recent years, operability with a single hand is getting worse, especially for female users. We envision that user experience can be significantly improved if smartphones are able to recognize the current operating hand, detect the hand-changing process and then adjust the user interfaces subsequently. In this paper, we proposed, implemented and evaluated two novel systems. The first one leverages the user-generated touchscreen traces to recognize the current operating hand, and the second one utilizes the accelerometer and gyroscope data of all kinds of activities in the user's daily life to detect the hand-changing process. These two systems are based on two supervised classifiers constructed from a series of refined touchscreen trace, accelerometer and gyroscope features. As opposed to existing solutions that all require users to select the current operating hand or confirm the hand-changing process manually, our systems follow much more convenient and practical methods and allow users to change the operating hand frequently without any harm to the user experience. We conduct extensive experiments on Samsung Galaxy S4 smartphones, and the evaluation results demonstrate that our proposed systems can recognize the current operating hand and detect the hand-changing process with 94.1% and 93.9% precision and 94.1% and 93.7% True Positive Rates (TPR) respectively, when deciding with a single touchscreen trace or accelerometer-gyroscope data segment, and the False Positive Rates (FPR) are as low as 2.6% and 0.7% accordingly. These two systems can either work completely independently and achieve pretty high accuracies or work jointly to further improve the recognition accuracy.

  1. Recognizing the Operating Hand and the Hand-Changing Process for User Interface Adjustment on Smartphones

    Directory of Open Access Journals (Sweden)

    Hansong Guo

    2016-08-01

    Full Text Available As the size of smartphone touchscreens has become larger and larger in recent years, operability with a single hand is getting worse, especially for female users. We envision that user experience can be significantly improved if smartphones are able to recognize the current operating hand, detect the hand-changing process and then adjust the user interfaces subsequently. In this paper, we proposed, implemented and evaluated two novel systems. The first one leverages the user-generated touchscreen traces to recognize the current operating hand, and the second one utilizes the accelerometer and gyroscope data of all kinds of activities in the user’s daily life to detect the hand-changing process. These two systems are based on two supervised classifiers constructed from a series of refined touchscreen trace, accelerometer and gyroscope features. As opposed to existing solutions that all require users to select the current operating hand or confirm the hand-changing process manually, our systems follow much more convenient and practical methods and allow users to change the operating hand frequently without any harm to the user experience. We conduct extensive experiments on Samsung Galaxy S4 smartphones, and the evaluation results demonstrate that our proposed systems can recognize the current operating hand and detect the hand-changing process with 94.1% and 93.9% precision and 94.1% and 93.7% True Positive Rates (TPR respectively, when deciding with a single touchscreen trace or accelerometer-gyroscope data segment, and the False Positive Rates (FPR are as low as 2.6% and 0.7% accordingly. These two systems can either work completely independently and achieve pretty high accuracies or work jointly to further improve the recognition accuracy.

  2. Real-Time Hand Gesture Recognition Using Finger Segmentation

    Directory of Open Access Journals (Sweden)

    Zhi-hua Chen

    2014-01-01

    Full Text Available Hand gesture recognition is very significant for human-computer interaction. In this work, we present a novel real-time method for hand gesture recognition. In our framework, the hand region is extracted from the background with the background subtraction method. Then, the palm and fingers are segmented so as to detect and recognize the fingers. Finally, a rule classifier is applied to predict the labels of hand gestures. The experiments on the data set of 1300 images show that our method performs well and is highly efficient. Moreover, our method shows better performance than a state-of-art method on another data set of hand gestures.

  3. Real-time hand gesture recognition using finger segmentation.

    Science.gov (United States)

    Chen, Zhi-hua; Kim, Jung-Tae; Liang, Jianning; Zhang, Jing; Yuan, Yu-Bo

    2014-01-01

    Hand gesture recognition is very significant for human-computer interaction. In this work, we present a novel real-time method for hand gesture recognition. In our framework, the hand region is extracted from the background with the background subtraction method. Then, the palm and fingers are segmented so as to detect and recognize the fingers. Finally, a rule classifier is applied to predict the labels of hand gestures. The experiments on the data set of 1300 images show that our method performs well and is highly efficient. Moreover, our method shows better performance than a state-of-art method on another data set of hand gestures.

  4. Interventions for preventing occupational irritant hand dermatitis

    NARCIS (Netherlands)

    Bauer, Andrea; Schmitt, Jochen; Bennett, Cathy; Coenraads, Pieter-Jan; Elsner, Peter; English, John; Williams, Hywel C.

    2010-01-01

    Background Occupational irritant hand dermatitis (OIHD) is an important cause of discomfort in the working population. Different preventive measures are in place but it is not clear how effective these are. Objectives To assess the effect of interventions for preventing OIHD in healthy people who wo

  5. PREVALENCE OF HAND DERMATITIS IN DIFFERENT OCCUPATIONS

    NARCIS (Netherlands)

    SMIT, HA; COENRAADS, PJ

    The prevalence of hand dermatitis in different occupational groups was estimated using a standardized questionnaire in a series of surveys among workers of a chemical company, a municipal electricity company, municipal public works, nurses and surgical assistants. A survey in a sample of the general

  6. Interventions for preventing occupational irritant hand dermatitis

    NARCIS (Netherlands)

    Bauer, Andrea; Schmitt, Jochen; Bennett, Cathy; Coenraads, Pieter-Jan; Elsner, Peter; English, John; Williams, Hywel C.

    2010-01-01

    Background Occupational irritant hand dermatitis (OIHD) is an important cause of discomfort in the working population. Different preventive measures are in place but it is not clear how effective these are. Objectives To assess the effect of interventions for preventing OIHD in healthy people who

  7. Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands

    Science.gov (United States)

    Santello, Marco; Bianchi, Matteo; Gabiccini, Marco; Ricciardi, Emiliano; Salvietti, Gionata; Prattichizzo, Domenico; Ernst, Marc; Moscatelli, Alessandro; Jörntell, Henrik; Kappers, Astrid M. L.; Kyriakopoulos, Kostas; Albu-Schäffer, Alin; Castellini, Claudio; Bicchi, Antonio

    2016-07-01

    The term 'synergy' - from the Greek synergia - means 'working together'. The concept of multiple elements working together towards a common goal has been extensively used in neuroscience to develop theoretical frameworks, experimental approaches, and analytical techniques to understand neural control of movement, and for applications for neuro-rehabilitation. In the past decade, roboticists have successfully applied the framework of synergies to create novel design and control concepts for artificial hands, i.e., robotic hands and prostheses. At the same time, robotic research on the sensorimotor integration underlying the control and sensing of artificial hands has inspired new research approaches in neuroscience, and has provided useful instruments for novel experiments. The ambitious goal of integrating expertise and research approaches in robotics and neuroscience to study the properties and applications of the concept of synergies is generating a number of multidisciplinary cooperative projects, among which the recently finished 4-year European project "The Hand Embodied" (THE). This paper reviews the main insights provided by this framework. Specifically, we provide an overview of neuroscientific bases of hand synergies and introduce how robotics has leveraged the insights from neuroscience for innovative design in hardware and controllers for biomedical engineering applications, including myoelectric hand prostheses, devices for haptics research, and wearable sensing of human hand kinematics. The review also emphasizes how this multidisciplinary collaboration has generated new ways to conceptualize a synergy-based approach for robotics, and provides guidelines and principles for analyzing human behavior and synthesizing artificial robotic systems based on a theory of synergies.

  8. Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands.

    Science.gov (United States)

    Santello, Marco; Bianchi, Matteo; Gabiccini, Marco; Ricciardi, Emiliano; Salvietti, Gionata; Prattichizzo, Domenico; Ernst, Marc; Moscatelli, Alessandro; Jörntell, Henrik; Kappers, Astrid M L; Kyriakopoulos, Kostas; Albu-Schäffer, Alin; Castellini, Claudio; Bicchi, Antonio

    2016-07-01

    The term 'synergy' - from the Greek synergia - means 'working together'. The concept of multiple elements working together towards a common goal has been extensively used in neuroscience to develop theoretical frameworks, experimental approaches, and analytical techniques to understand neural control of movement, and for applications for neuro-rehabilitation. In the past decade, roboticists have successfully applied the framework of synergies to create novel design and control concepts for artificial hands, i.e., robotic hands and prostheses. At the same time, robotic research on the sensorimotor integration underlying the control and sensing of artificial hands has inspired new research approaches in neuroscience, and has provided useful instruments for novel experiments. The ambitious goal of integrating expertise and research approaches in robotics and neuroscience to study the properties and applications of the concept of synergies is generating a number of multidisciplinary cooperative projects, among which the recently finished 4-year European project "The Hand Embodied" (THE). This paper reviews the main insights provided by this framework. Specifically, we provide an overview of neuroscientific bases of hand synergies and introduce how robotics has leveraged the insights from neuroscience for innovative design in hardware and controllers for biomedical engineering applications, including myoelectric hand prostheses, devices for haptics research, and wearable sensing of human hand kinematics. The review also emphasizes how this multidisciplinary collaboration has generated new ways to conceptualize a synergy-based approach for robotics, and provides guidelines and principles for analyzing human behavior and synthesizing artificial robotic systems based on a theory of synergies.

  9. Hand preference, performance abilities and hand selection in children

    Directory of Open Access Journals (Sweden)

    Sara Marie Scharoun

    2014-02-01

    Full Text Available It is widely know that the pattern of human handedness is such that approximately 90% of the population is right handed with the remainder being left handed, at least in the adult population. What is less well understood is how handedness develops and at what age adult-like handedness patterns emerge. Quantified in terms of both preference and performance, a plethora of different behavioural assessments are currently in use with both children and adults. Handedness questionnaires are commonly used; however, these possess inherent limitations, considering their subjective nature. Hand performance measures have also been implemented; however, such tasks appear to measure different components of handedness. In addition to these traditional measures, handedness has been successfully assessed through observation of hand selection in reaching, which has proven to be a unique and effective manner in understanding the development of handedness in children. Research over the past several decades has demonstrated that young children display weak, inconsistent hand preference tendencies and are slower with both hands. Performance differences between the hands are larger for young children, and consistency improves with age. However, there remains some controversy surrounding the age at which hand preference and hand performance abilities can be considered fully developed. The following paper will provide a review of the literature pertaining to hand preference, performance abilities and hand selection in children in an attempt to ascertain the age at which adult-like patterns of hand preference and performance emerge.

  10. Illumination-invariant hand gesture recognition

    Science.gov (United States)

    Mendoza-Morales, América I.; Miramontes-Jaramillo, Daniel; Kober, Vitaly

    2015-09-01

    In recent years, human-computer interaction (HCI) has received a lot of interest in industry and science because it provides new ways to interact with modern devices through voice, body, and facial/hand gestures. The application range of the HCI is from easy control of home appliances to entertainment. Hand gesture recognition is a particularly interesting problem because the shape and movement of hands usually are complex and flexible to be able to codify many different signs. In this work we propose a three step algorithm: first, detection of hands in the current frame is carried out; second, hand tracking across the video sequence is performed; finally, robust recognition of gestures across subsequent frames is made. Recognition rate highly depends on non-uniform illumination of the scene and occlusion of hands. In order to overcome these issues we use two Microsoft Kinect devices utilizing combined information from RGB and infrared sensors. The algorithm performance is tested in terms of recognition rate and processing time.

  11. Electronic artificial hand controlled by reconstructed digit

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    Objecive: To treat the loss of part of the forearm with a multi-dimension-freedom electronic artificial hand,which is controlled by a reconstructed finger transplanted from the second toe to the forearm stump.Methods: The female patient was 19 years old, whose right hand and wrist were crushed into pieces by machine at work and her forearm was amputated at the level of 8 cm proximal to the wrist. The second toe of her left foot was transplanted to reconstruct the digit onto the stump of her forearm. Two months after the transplantation, the patient was transferred to the rehabilitation center for further rehabilitation training, which consisted of: training for adaptation to weight bearing, testing and training of sensibility to weight. testing and training for stability of the hand, and testing and training for the controlling function of the reconstructed digit. Results: The transplanted toe survived well. After rehabilitation the reconstructed digit functioned well. In testing the performance under control mandate, the accuracy rate of the electronic artificial hand was 100%.Conclusions: A 100% accuracy rate of the electronic artificial hand can be achieved by transplantation of the toe onto the stump of the forearm. It provides a useful pathway and an example for improvement of control accuracy of a multiple-freedom electronic artificial hand and reduction of false action.

  12. iHand: an interactive bare-hand-based augmented reality interface on commercial mobile phones

    Science.gov (United States)

    Choi, Junyeong; Park, Jungsik; Park, Hanhoon; Park, Jong-Il

    2013-02-01

    The performance of mobile phones has rapidly improved, and they are emerging as a powerful platform. In many vision-based applications, human hands play a key role in natural interaction. However, relatively little attention has been paid to the interaction between human hands and the mobile phone. Thus, we propose a vision- and hand gesture-based interface in which the user holds a mobile phone in one hand but sees the other hand's palm through a built-in camera. The virtual contents are faithfully rendered on the user's palm through palm pose estimation, and reaction with hand and finger movements is achieved that is recognized by hand shape recognition. Since the proposed interface is based on hand gestures familiar to humans and does not require any additional sensors or markers, the user can freely interact with virtual contents anytime and anywhere without any training. We demonstrate that the proposed interface works at over 15 fps on a commercial mobile phone with a 1.2-GHz dual core processor and 1 GB RAM.

  13. Design and Development of Robot Hand System

    Directory of Open Access Journals (Sweden)

    Panchumarthy Seetharamaiah

    2011-01-01

    Full Text Available Research on robot hand design is being carried out to accommodate a variety of tasks such as grasping and manipulation of objects in the field of industrial applications, service robots and rehabilitation robots. Problem statement: To design and develop a microcontroller-based four fingered robotic hand with a simple and minimal control strategy to pick and place application with object detection by simple IR sensor logic. Approach: The methodology is based on anthropomorphic design with three fingers and an opposing thumb. Each finger has three links and three double revolute joints. Each finger is actuated by a single opposing pair of tendons. The robot hand system is interfaced to microcontroller with software control by means of 14 independent commands for the motion of joints: close and open for fore finger, middle finger, ring finger and thumb finger and wrist up and down, base clockwise and counter clockwise, pick and place and home position. The tendoning system and wireless feedback logic provide the hand with the ability to confirm to object topology and therefore providing the advantage of using a simple control structure. Results: Reliable grasping and releasing is achieved with simple control mechanisms and IR sensors/push-button switches. The hand can pick a variety of objects with different surface characteristics and shapes without having to reconstruct its surface description. Picking of the object is successfully completed as long as the object is within the workspace of the hand and placed the object at the desired position within the workspace by relevant software control using keyboard commands. Conclusion: Hardware and software development of microcontroller-based four-fingered robotic hand is addressed. Details of hand control software for mainly pick and place applications are presented. Results of the experimental work for pick and place application of different objects is enumerated.

  14. Handwashing: Clean Hands Save Lives

    Science.gov (United States)

    ... traveling, or already sick, find out how good hand hygiene can protect you, your family, and others. More… ... creating a handwashing campaign for your school community. Hand Hygiene in Healthcare Settings Resources for healthcare workers and ...

  15. Surgical anatomy of hand allotransplantation.

    Science.gov (United States)

    Carlsen, Brian T; Al-Mufarrej, Faisal; Moran, Steven L

    2013-07-01

    The hand is the most refined anatomical terminal device known and the leading edge of the sensorium. Further, the hand is second only to the face in terms of visibility and is a vitally important aspect aesthetic and body image. Hand amputation represents a devastating loss of function and independence. Restoring function after limb loss is a challenge and traditionally includes autologous methods and prosthetics. In the last 15 years, hand transplantation has become a viable option for select patients.

  16. [Hand injuries management of care and hand prevention networks].

    Science.gov (United States)

    Couturier, Christian

    2013-11-01

    Injuries of the hand are common and sometimes more serious than it appears on a non-specialist initial examination. They are a public health issue with some major impact on the continued activity of patients who have been victims of those injuries. The European Federation of Hand Emergency Services (FESUM) accredits SOS Hand centers, dedicated hand trauma organizations in which the specialized medical cares is optima, avoiding the loss of chance to inadequate primary orientation. If nevertheless a serious injury leaves a debilitating sequela Hand Prevention networks, organized by practitioners of SOS Hand centers, help patients establish a process of socio-professional rehabilitation as soon as possible. These networks organize primary, secondary and tertiary prevention of hand trauma and disabilities that can accompany them. Innovative organizations, they resemble a national association that supports the development of new structures. They are open to all professionals of health and their patients, members or not of the network.

  17. 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

  18. Management of Atopic Hand Dermatitis

    DEFF Research Database (Denmark)

    Halling-Overgaard, Anne-Sofie; Zachariae, Claus; Thyssen, Jacob P

    2017-01-01

    This article provides an overview of clinical aspects of hand eczema in patients with atopic dermatitis. Hand eczema can be a part of atopic dermatitis itself or a comorbidity, for example, as irritant or allergic contact dermatitis. When managing hand eczema, it is important to first categorize...

  19. Gravitons that shake hands

    CERN Document Server

    Gubitosi, Giulia

    2016-01-01

    We examine some of the roots of parity violation for gravitons and uncover a closely related new effect: correlations between right and left handed gravitons. Such correlators have spin 4 if they involve gravitons moving along the same direction, and spin zero for gravitons moving with opposite directions. In the first case, the most immediate implication would be a degree of linear polarization for the tensor vacuum fluctuations, which could be seen by gravity wave detectors sensitive enough to probe the primordial background, its degree of polarization and anisotropies. Looking at the anisotropy of the gravity waves linear polarization we identify the parity respecting and violating components of the effect. The imprint on the CMB temperature and polarization would be more elusive, since it averages to zero in the two-point functions, appearing only in their cosmic variance or in fourth order correlators. In contrast, spin zero correlations would have an effect on the two point function of the CMB temperatu...

  20. Second-hand signals

    DEFF Research Database (Denmark)

    Bergenholtz, Carsten

    2014-01-01

    Studies of signaling theory have traditionally focused on the dyadic link between the sender and receiver of the signal. Within a science‐based perspective this framing has led scholars to investigate how patents and publications of firms function as signals. I explore another important type...... of signal of firms, which is based on a formalized common practice of external, academic experts referring to firms in their peer reviewed publications. The findings provide qualitative evidence that helps explain why and how this new type of ‘second‐hand’ signal is created, validated and systematically...... used by various agents in their search for and assessment of products and firms. I conclude by arguing how this second‐hand nature of signals goes beyond a simple dyadic focus on senders and receivers of signals, and thus elucidates the more complex interrelations of the various types of agents...

  1. Contamination of healthcare workers' hands with bacterial spores.

    Science.gov (United States)

    Sasahara, Teppei; Ae, Ryusuke; Watanabe, Michiyo; Kimura, Yumiko; Yonekawa, Chikara; Hayashi, Shunji; Morisawa, Yuji

    2016-08-01

    Clostridium species and Bacillus spp. are spore-forming bacteria that cause hospital infections. The spores from these bacteria are transmitted from patient to patient via healthcare workers' hands. Although alcohol-based hand rubbing is an important hand hygiene practice, it is ineffective against bacterial spores. Therefore, healthcare workers should wash their hands with soap when they are contaminated with spores. However, the extent of health care worker hand contamination remains unclear. The aim of this study is to determine the level of bacterial spore contamination on healthcare workers' hands. The hands of 71 healthcare workers were evaluated for bacterial spore contamination. Spores attached to subject's hands were quantitatively examined after 9 working hours. The relationship between bacterial spore contamination and hand hygiene behaviors was also analyzed. Bacterial spores were detected on the hands of 54 subjects (76.1%). The mean number of spores detected was 468.3 CFU/hand (maximum: 3300 CFU/hand). Thirty-seven (52.1%) and 36 (50.7%) subjects were contaminated with Bacillus subtilis and Bacillus cereus, respectively. Nineteen subjects (26.8%) were contaminated with both Bacillus species. Clostridium difficile was detected on only one subject's hands. There was a significant negative correlation between the hand contamination level and the frequency of handwashing (r = -0.44, P < 0.01) and a significant positive correlation between the hand contamination level and the elapsed time since last handwashing (r = 0.34, P < 0.01). Healthcare workers' hands may be frequently contaminated with bacterial spores due to insufficient handwashing during daily patient care.

  2. Hand or foot spasms

    Science.gov (United States)

    ... panic Muscle cramps , usually caused by overuse during sports or work activity Pregnancy, more often during the ... be done. Tests may include: Potassium, calcium and magnesium levels Hormone levels Kidney function tests Vitamin D ...

  3. Your left-handed brain

    OpenAIRE

    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...

  4. On the other hand: dummy hands and peripersonal space.

    Science.gov (United States)

    Makin, Tamar R; Holmes, Nicholas P; Ehrsson, H Henrik

    2008-08-05

    Where are my hands? The brain can answer this question using sensory information arising from vision, proprioception, or touch. Other sources of information about the position of our hands can be derived from multisensory interactions (or potential interactions) with our close environment, such as when we grasp or avoid objects. The pioneering study of multisensory representations of peripersonal space was published in Behavioural Brain Research almost 30 years ago [Rizzolatti G, Scandolara C, Matelli M, Gentilucci M. Afferent properties of periarcuate neurons in macaque monkeys. II. Visual responses. Behav Brain Res 1981;2:147-63]. More recently, neurophysiological, neuroimaging, neuropsychological, and behavioural studies have contributed a wealth of evidence concerning hand-centred representations of objects in peripersonal space. This evidence is examined here in detail. In particular, we focus on the use of artificial dummy hands as powerful instruments to manipulate the brain's representation of hand position, peripersonal space, and of hand ownership. We also review recent studies of the 'rubber hand illusion' and related phenomena, such as the visual capture of touch, and the recalibration of hand position sense, and discuss their findings in the light of research on peripersonal space. Finally, we propose a simple model that situates the 'rubber hand illusion' in the neurophysiological framework of multisensory hand-centred representations of space.

  5. Dissociated small hand muscle atrophy in aging: the 'senile hand' is a split hand.

    NARCIS (Netherlands)

    Voermans, N.C.; Schelhaas, H.J.; Munneke, M.; Zwarts, M.J.

    2006-01-01

    The term 'split hand' refers to a pattern of dissociated atrophy of hand muscles and was first described in ALS. We hypothesize that this phenomenon also occurs in 'normal' aging. We investigated healthy subjects of different ages and found a progressive dissociation in atrophy of the hand muscles,

  6. Hand Spring Operated Movement Enhancer (HandSOME): a portable, passive hand exoskeleton for stroke rehabilitation.

    Science.gov (United States)

    Brokaw, Elizabeth B; Black, Iian; Holley, Rahsaan J; Lum, Peter S

    2011-08-01

    Stroke patients often have flexor hypertonia and finger extensor weakness, which makes it difficult to open their affected hand for functional grasp. Because of this impairment, hand rehabilitation after stroke is essential for restoring functional independent lifestyles. The goal of this study is to develop a passive, lightweight, wearable device to assist with hand function during performance of activities of daily living. The device, Hand Spring Operated Movement Enhancer (HandSOME), assists with opening the patient's hand using a series of elastic cords that apply extension torques to the finger joints and compensates for the flexor hypertonia. Device design and calibration are described as well as functional and usability testing with stroke subjects with a wide range of hand impairments. In initial testing with eight stroke subjects with finger flexor hypertonia, use of the HandSOME significantly increased range of motion and functional ability (p=0.002) . There was some decrease in grip strength with the HandSOME device at the subject's ideal setting, however this was not statistically significant (p=0.167) and did not seem to have a significant effect on function. Overall HandSOME shows promise as a training tool to facilitate repetitive task practice for improving hand function in stroke patients. HandSOME can be used as part of a home-based therapy program, or as an orthotic for replacing lost function.

  7. Robotically enhanced rubber hand illusion.

    Science.gov (United States)

    Arata, Jumpei; Hattori, Masashi; Ichikawa, Shohei; Sakaguchi, Masamichi

    2014-01-01

    The rubber hand illusion is a well-known multisensory illusion. In brief, watching a rubber hand being stroked by a paintbrush while one's own unseen hand is synchronously stroked causes the rubber hand to be attributed to one's own body and to "feel like it's my hand." The rubber hand illusion is thought to be triggered by the synchronized tactile stimulation of both the subject's hand and the fake hand. To extend the conventional rubber hand illusion, we introduce robotic technology in the form of a master-slave telemanipulator. The developed one degree-of-freedom master-slave system consists of an exoskeleton master equipped with an optical encoder that is worn on the subject's index finger and a motor-actuated index finger on the rubber hand, which allows the subject to perform unilateral telemanipulation. The moving rubber hand illusion has been studied by several researchers in the past with mechanically connected rigs between the subject's body and the fake limb. The robotic instruments let us investigate the moving rubber hand illusion with less constraints, thus behaving closer to the classic rubber hand illusion. In addition, the temporal delay between the body and the fake limb can be precisely manipulated. The experimental results revealed that the robotic instruments significantly enhance the rubber hand illusion. The time delay is significantly correlated with the effect of the multisensory illusion, and the effect significantly decreased at time delays over 100 ms. These findings can potentially contribute to the investigations of neural mechanisms in the field of neuroscience and of master-slave systems in the field of robotics.

  8. Active Appearance Model Based Hand Gesture Recognition

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    This paper addresses the application of hand gesture recognition in monocular image sequences using Active Appearance Model (AAM). For this work, the proposed algorithm is conposed of constructing AAMs and fitting the models to the interest region. In training stage, according to the manual labeled feature points, the relative AAM is constructed and the corresponding average feature is obtained. In recognition stage, the interesting hand gesture region is firstly segmented by skin and movement cues.Secondly, the models are fitted to the image that includes the hand gesture, and the relative features are extracted.Thirdly, the classification is done by comparing the extracted features and average features. 30 different gestures of Chinese sign language are applied for testing the effectiveness of the method. The Experimental results are given indicating good performance of the algorithm.

  9. Prosthetic helping hand

    Science.gov (United States)

    Vest, Thomas W. (Inventor); Carden, James R. (Inventor); Norton, William E. (Inventor); Belcher, Jewell G. (Inventor)

    1992-01-01

    A prosthetic device for below-the-elbow amputees, having a C-shaped clamping mechanism for grasping cylindrical objects, is described. The clamping mechanism is pivotally mounted to a cuff that fits on the amputee's lower arm. The present invention is utilized by placing an arm that has been amputated below the elbow into the cuff. The clamping mechanism then serves as a hand whenever it becomes necessary for the amputee to grasp a cylindrical object such as a handle, a bar, a rod, etc. To grasp the cylindrical object, the object is jammed against the opening in the C-shaped spring, causing the spring to open, the object to pass to the center of the spring, and the spring to snap shut behind the object. Various sizes of clamping mechanisms can be provided and easily interchanged to accommodate a variety of diameters. With the extension that pivots and rotates, the clamping mechanism can be used in a variety of orientations. Thus, this invention provides the amputee with a clamping mechanism that can be used to perform a number of tasks.

  10. Digit and hand replantation.

    Science.gov (United States)

    Beris, Alexandros E; Lykissas, Marios G; Korompilias, Anastasios V; Mitsionis, Gregory I; Vekris, Marios D; Kostas-Agnantis, Ioannis P

    2010-09-01

    For the past 45 years, the advent of microsurgery has led to replantation of almost every amputated part such as distal phalanx, finger tip, etc. Replantation of digits and hand can restore not only circulation, but also function and cosmetic of the amputated part. The goals of replantation are to restore circulation and regain sufficient function and sensation of the amputated part. Strict selection criteria are necessary to optimize the functional result. The management of this type of injuries includes meticulous preoperative management, microsurgical experience and continuous postoperative care. Among various factors influencing the outcome, the most important are the type and the level of injury, ischemia time, history of diabetes, age, sex, and smoking history. During the replantation procedure, bone stabilization, tendon repair, arterial anastomoses, venous anastomoses, nerve coaptation, and skin coverage should be performed. All structures should be repaired primarily, unless a large nerve gap or a flexor tendon avulsion injury is present. Adequate postoperative evaluation is mandatory to avoid early or late complications. To improve functional results, many replantation patients may need further reconstructive surgery.

  11. 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 ...

  12. Modelling natural and artificial hands with synergies.

    Science.gov (United States)

    Bicchi, Antonio; Gabiccini, Marco; Santello, Marco

    2011-11-12

    We report on recent work in modelling the process of grasping and active touch by natural and artificial hands. Starting from observations made in human hands about the correlation of degrees of freedom in patterns of more frequent use (postural synergies), we consider the implications of a geometrical model accounting for such data, which is applicable to the pre-grasping phase occurring when shaping the hand before actual contact with the grasped object. To extend applicability of the synergy model to study force distribution in the actual grasp, we introduce a modified model including the mechanical compliance of the hand's musculotendinous system. Numerical results obtained by this model indicate that the same principal synergies observed from pre-grasp postural data are also fundamental in achieving proper grasp force distribution. To illustrate the concept of synergies in the dual domain of haptic sensing, we provide a review of models of how the complexity and heterogeneity of sensory information from touch can be harnessed in simplified, tractable abstractions. These abstractions are amenable to fast processing to enable quick reflexes as well as elaboration of high-level percepts. Applications of the synergy model to the design and control of artificial hands and tactile sensors are illustrated.

  13. The prevalence and severity of hand eczema among nurses working in three hospitals in Harbin, as well as its possible associated risk factors%护士手部湿疹发病率及其致病因素的相关性分析和对策

    Institute of Scientific and Technical Information of China (English)

    张丹; 高敏; 刘萍; 王秀东

    2014-01-01

    目的:探讨护士手部湿疹的发病率并对致病因素进行相关性分析。方法选择黑龙江省哈尔滨市内三家有代表性的三级甲等医院,对从业护士做一次大规模的流行病学调查研究,总结分析出手部湿疹的发病率,探讨其发病相关因素;进一步和国内外的研究结果对比,并结合我省我市及我国的实际情况,提出护士手部湿疹的防治建议。结果三家医院一共随机选取了1322名来自于不同科室的护士进行问卷调查,两周后共有934名护士填写了调查问卷并返回,响应率为70.7%(934/1322)。手部湿疹的患病率大致为19.6%,自身和家族特异性体质者湿疹发病率高(68.0%:28.2%;18.5%:15.4%,P20 times per day, wearing gloves most of the time during work, no applying emollient after wet work were independent risk factors for hand eczema. Conclusion Hand eczema is common and severe among Harbin nurses. the results of this study suggest that hand eczema is an important problem for nurses and that preventive measures should be emphasized.

  14. Hand spring operated movement enhancer (HandSOME) device for hand rehabilitation after stroke.

    Science.gov (United States)

    Brokaw, Elizabeth B; Holley, Rahsaan J; Lum, Peter S

    2010-01-01

    Hand rehabilitation after stroke is essential for restoring functional independent lifestyles. After stroke, patients often have flexor hypertonia, making it difficult to open their hand for functional grasp. The development and initial testing of a passive hand rehabilitation device is discussed. The device, Hand Spring Operated Movement Enhancer (HandSOME), assists with opening the patient's hand using a series of bungee cords that apply extension torques to the finger joints that compensate for the flexor hypertonia. This results in significant increase in range of motion and functional use when wearing HandSOME, even in severely impaired subjects. Device design, calibration, and range of motion are described as well as functional and usability testing with stroke subjects.

  15. 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.

  16. Cell fate in the hand of Plk4

    NARCIS (Netherlands)

    Tanenbaum, Marvin E.; Medema, Rene H.

    2007-01-01

    The transcription factor Hand1 is required for cell-fate determination during placental development. Recent work shows that release of Hand1 from the nucleolus controls differentiation of trophoblast stem cells into trophoblast giant cells, and this switch is controlled by the antagonistic activitie

  17. [Hand involvement in systemic sclerosis].

    Science.gov (United States)

    Mouthon, Luc

    2013-12-01

    Hand involvement is very common in patients with systemic sclerosis and represents an important tool for the early diagnosis of the disease. Vascular involvement of the hands is at the forefront of systemic sclerosis, with Raynaud's phenomenon, which may be complicated by digital ulcers, digital necrosis causing pain, infection and significant disability. Joint inflammation can also be disabling and causes the occurrence of contractures and deformities resulting in a marked hand disability. Skin sclerosis involving fingers and hands leads to the occurrence of pain and functional impairment. Hand involvement contributes to 75 % of global disability in patients with systemic sclerosis. Only a comprehensive care, taking into account the vascular, skin and joint manifestations, including physical therapy if needed can improve hand function in patients with systemic sclerosis.

  18. Hands-on Virtual Clay

    OpenAIRE

    Pihuit, Adeline; Kry, Paul; Cani, Marie-Paule

    2008-01-01

    poster; International audience; This paper presents a new interaction system designed for hands-on 3D shape modeling and deformation through natural hand gestures. Our system is made of a Phantom haptic device coupled with a deformable foam ball that supports pressure sensors. These sensors detect forces exerted by the user's fingertips, and are used to control the configuration of a compliant virtual hand that is modeling soft virtual clay. During interaction, the user is provided both passi...

  19. On Semantic Development of HAND

    Institute of Scientific and Technical Information of China (English)

    黎金娥

    2015-01-01

    The body-part term, HAND, ranks 48 in Swadesh's 100-Word List.This paper discusses the origin and meanings, and then the rules of semantic development in the HAND semantic field by comparing with other languages.The word itself does not only denote the body part but also things resembling hands in shape, position, function and things associated with hands.Plenty of linguistic evidence can be found to illustrate that all human beings regard their bodies as the basis and starting point of recognition of the whole world.

  20. 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.

  1. 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…

  2. 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.

  3. 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…

  4. Augmented robotic device for EVA hand manoeuvres

    Science.gov (United States)

    Matheson, Eloise; Brooker, Graham

    2012-12-01

    During extravehicular activities (EVAs), pressurised space suits can lead to difficulties in performing hand manoeuvres and fatigue. This is often the cause of EVAs being terminated early, or taking longer to complete. Assistive robotic gloves can be used to augment the natural motion of a human hand, meaning work can be carried out more efficiently with less stress to the astronaut. Lightweight and low profile solutions must be found in order for the assistive robotic glove to be easily integrated with a space suit pressure garment. Pneumatic muscle actuators combined with force sensors are one such solution. These actuators are extremely light, yet can output high forces using pressurised gases as the actuation drive. Their movement is omnidirectional, so when combined with a flexible exoskeleton that itself provides a degree of freedom of movement, individual fingers can be controlled during flexion and extension. This setup allows actuators and other hardware to be stored remotely on the user's body, resulting in the least possible mass being supported by the hand. Two prototype gloves have been developed at the University of Sydney; prototype I using a fibreglass exoskeleton to provide flexion force, and prototype II using torsion springs to achieve the same result. The gloves have been designed to increase the ease of human movements, rather than to add unnatural ability to the hand. A state space control algorithm has been developed to ensure that human initiated movements are recognised, and calibration methods have been implemented to accommodate the different characteristics of each wearer's hands. For this calibration technique, it was necessary to take into account the natural tremors of the human hand which may have otherwise initiated unexpected control signals. Prototype I was able to actuate the user's hand in 1 degree of freedom (DOF) from full flexion to partial extension, and prototype II actuated a user's finger in 2 DOF with forces achieved

  5. An Investigation For Control Aspect Towards Modeled Dexterous Hand System

    Directory of Open Access Journals (Sweden)

    Rahul Roy ,

    2014-07-01

    Full Text Available The research domain of prosthetic technology has always remained a dialectic zone of creativity, yoking together technology and biomedical necessity. Any part of the human body replication procedure commences the prosthetic control science. Dexterity, adroitness in using the hands or body, is the prime or essential aspect in modeling dexterous hand. Simulation procedure implies to build up stability of the reference transfer function of Dexterous Hand. The present work deals with the discussion of stability criteria and simulation in discrete domain of Dexterous Hand.

  6. 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.

  7. Tactile display on the remaining hand for unilateral hand amputees

    Directory of Open Access Journals (Sweden)

    Li Tao

    2016-09-01

    Full Text Available Human rely profoundly on tactile feedback from fingertips to interact with the environment, whereas most hand prostheses used in clinics provide no tactile feedback. In this study we demonstrate the feasibility to use a tactile display glove that can be worn by a unilateral hand amputee on the remaining healthy hand to display tactile feedback from a hand prosthesis. The main benefit is that users could easily distinguish the feedback for each finger, even without training. The claimed advantage is supported by preliminary tests with healthy subjects. This approach may lead to the development of effective and affordable tactile display devices that provide tactile feedback for individual fingertip of hand prostheses.

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

    Directory of Open Access Journals (Sweden)

    Coquin Didier

    2005-01-01

    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. Repercusión Ocupacional de las Amputaciones Traumáticas en Dedos de la Mano por Accidente de Trabajo Impact Occupational of Traumatic Amtutation In Fingers of the Hand by Work Accident

    Directory of Open Access Journals (Sweden)

    Lía Clara López Sullaez

    2009-12-01

    Full Text Available Introducción: Las amputaciones de los dedos de la mano incapacitan al trabajador de forma permanente para realizar sus actividades de la vida diaria y ocupacional, dependiendo de los dedos afectados. Objetivo: Determinar la repercusión ocupacional de las amputaciones traumáticas de los dedos de la mano por accidente de trabajo según los dictámenes de invalidez. Materiales y métodos: Estudio descriptivo retrospectivo, que se realizó mediante 112 formularios de dictamen de invalidez emitidos por la Entidad Encargada de Calificar de las gestiones 2005 a 2008. Resultados: La ocupación fue recortada en el 42,9% (3/7 de los trabajadores con amputación del pulgar y en el 72,4% (21/29 cuando la amputación fue del índice. La amputación de 2 y 3 dedos hizo que la ocupación fuera recortada en 64% (16/25 y 66,7% (2/3 respectivamente. La ocupación fue adaptada en la amputación de 4 dedos (4/4 y transmetacarpiana (2/2; y confinada cuando afectó más de 5 dedos (2/2. Conclusión: La amputación de los dedos de la mano produce diferentes grados de minusvalía ocupacional de acuerdo al dedo o dedos lesionados, por lo que se deben implementar medidas de prevención en las diferentes empresas para disminuir la accidentabilidad.Introduction: Amputations of the fingers disabling worker for a permanent form fir to realize their activities of daily living and occupational, depending on the affected fingers. Aim: To determine the impact of occupational traumatic amputations of the fingers by work accident according to disability form. Materials and methods: Retrospective descriptive study, realized trhought 112 forms of disability issued by the Entidad Encargada de Calificar, during years 2005 to 2008. Results: The occupation was clip in 42.9% (3/7 of workers with amputation of the thumb and 72.4% (21/29 when it was in the forefinger. Amputation of two and three fingers was clipped occupation in 64% (16/25 and 66.7% (2/3 respectively. The occupation was

  11. Hand Gesture Recognition Using Ultrasonic Waves

    KAUST Repository

    AlSharif, Mohammed Hussain

    2016-04-01

    Gesturing is a natural way of communication between people and is used in our everyday conversations. Hand gesture recognition systems are used in many applications in a wide variety of fields, such as mobile phone applications, smart TVs, video gaming, etc. With the advances in human-computer interaction technology, gesture recognition is becoming an active research area. There are two types of devices to detect gestures; contact based devices and contactless devices. Using ultrasonic waves for determining gestures is one of the ways that is employed in contactless devices. Hand gesture recognition utilizing ultrasonic waves will be the focus of this thesis work. This thesis presents a new method for detecting and classifying a predefined set of hand gestures using a single ultrasonic transmitter and a single ultrasonic receiver. This method uses a linear frequency modulated ultrasonic signal. The ultrasonic signal is designed to meet the project requirements such as the update rate, the range of detection, etc. Also, it needs to overcome hardware limitations such as the limited output power, transmitter, and receiver bandwidth, etc. The method can be adapted to other hardware setups. Gestures are identified based on two main features; range estimation of the moving hand and received signal strength (RSS). These two factors are estimated using two simple methods; channel impulse response (CIR) and cross correlation (CC) of the reflected ultrasonic signal from the gesturing hand. A customized simple hardware setup was used to classify a set of hand gestures with high accuracy. The detection and classification were done using methods of low computational cost. This makes the proposed method to have a great potential for the implementation in many devices including laptops and mobile phones. The predefined set of gestures can be used for many control applications.

  12. Robotic hand with locking mechanism using TCP muscles for applications in prosthetic hand and humanoids

    Science.gov (United States)

    Saharan, Lokesh; Tadesse, Yonas

    2016-04-01

    This paper presents a biomimetic, lightweight, 3D printed and customizable robotic hand with locking mechanism consisting of Twisted and Coiled Polymer (TCP) muscles based on nylon precursor fibers as artificial muscles. Previously, we have presented a small-sized biomimetic hand using nylon based artificial muscles and fishing line muscles as actuators. The current study focuses on an adult-sized prosthetic hand with improved design and a position/force locking system. Energy efficiency is always a matter of concern to make compact, lightweight, durable and cost effective devices. In natural human hand, if we keep holding objects for long time, we get tired because of continuous use of energy for keeping the fingers in certain positions. Similarly, in prosthetic hands we also need to provide energy continuously to artificial muscles to hold the object for a certain period of time, which is certainly not energy efficient. In this work we, describe the design of the robotic hand and locking mechanism along with the experimental results on the performance of the locking mechanism.

  13. 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

  14. Please wash your hands often

    OpenAIRE

    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)

  15. 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...

  16. 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 a...

  17. 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.

  18. 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…

  19. Robot Forearm and Dexterous Hand

    Science.gov (United States)

    Lovchik, Christopher S.

    2005-01-01

    An electromechanical hand-and-forearm assembly has been developed for incorporation into an anthropomorphic robot that would be used in outer space. The assembly is designed to offer manual dexterity comparable to that of a hand inside an astronaut s suit; thus, the assembly may also be useful as a prosthesis or as an end effector on an industrial robot.

  20. Risks of occupational expsoures to hand-transmitted vibration: VIBRISKS

    OpenAIRE

    Griffin, Michael J.; Lewis, Christopher H.; Bovenzi, Massimo; Lemerle, Pierre; Lundström, Ronnie

    2004-01-01

    VIBRISKS seeks to improve understanding of the risk of injury from hand-transmitted vibration and whole-body vibration by means of epidemiological studies supported by fundamental laboratory research. VIBRISKS is a consortium of six partners from six European countries (France, Germany, Italy, Sweden, The Netherlands, UK). The four-year research project, which commenced in 2003, involves three work packages devoted to hand-transmitted vibration and three work packages devoted to whole-body vi...

  1. Hand-related physical function in rheumatic hand conditions

    DEFF Research Database (Denmark)

    Klokker, Louise; Terwee, Caroline B; Wæhrens, Eva Ejlersen;

    2016-01-01

    INTRODUCTION: There is no consensus about what constitutes the most appropriate patient-reported outcome measurement (PROM) instrument for measuring physical function in patients with rheumatic hand conditions. Existing instruments lack psychometric testing and vary in feasibility and their psych......INTRODUCTION: There is no consensus about what constitutes the most appropriate patient-reported outcome measurement (PROM) instrument for measuring physical function in patients with rheumatic hand conditions. Existing instruments lack psychometric testing and vary in feasibility...... and their psychometric qualities. We aim to develop a PROM instrument to assess hand-related physical function in rheumatic hand conditions. METHODS AND ANALYSIS: We will perform a systematic search to identify existing PROMs to rheumatic hand conditions, and select items relevant for hand-related physical function...... as well as those items from the Patient Reported Outcomes Measurement Information System (PROMIS) Physical Function (PF) item bank that are relevant to patients with rheumatic hand conditions. Selection will be based on consensus among reviewers. Content validity of selected items will be established...

  2. Hand Transplantation Versus Hand Prosthetics: Pros and Cons.

    Science.gov (United States)

    Salminger, S; Roche, A D; Sturma, A; Mayer, J A; Aszmann, O C

    Composite tissue transplantation and new developments in the field of prosthetics have opened new frontiers in the restoration of function among upper limb amputees. It is now possible to restore hand function in affected patients; however, the indications, advantages, and limitations for either hand transplantation or prosthetic fitting must be carefully considered depending on the level and extent of the limb loss. Hand transplantation allows comprehensive hand function to be restored, yet composite tissue transplantation comes with disadvantages, making this method a controversial topic in the hand surgical community. Alternatively, prosthetic limb replacement represents the standard of care for upper limb amputees, but results in the known limitations of function, sensation, and usage. The indication for hand transplantation or prosthetic fitting strongly depends on the level of amputation, as well as on the extent (unilateral/bilateral) of the amputation. In this review, we discuss the advantages and disadvantages of hand transplantation and prosthetic replacement for upper limb amputees in general, as well as in regard to the different levels of amputation.

  3. Hand eczema - prognosis and consequences

    DEFF Research Database (Denmark)

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

    2014-01-01

    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 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 self-administrated photographic guide. Additional information was obtained from a questionnaire. RESULTS: Based on the photographic guide, 73% experienced a clinical improvement. Notably, 20% had moderate to very severe hand eczema at follow-up. Severe hand eczema or frequent eruptions at baseline...

  4. Hand Detection Using HSV Model

    Directory of Open Access Journals (Sweden)

    Uzma Noreen

    2015-08-01

    Full Text Available Natural Human Computer Interaction HCI is the demand of todays technology oriented world. Detecting and tracking of face and hands are important for gesture recognition. Skin detection is a very popular and useful technique for detecting and tracking human-body parts. It has been much attention mainly because of its vast range of applications such as face detection and tracking naked people detection hand detection and tracking people retrieval in databases and Internet etc. Many models and algorithms are being used for detection of face hand and its gesture. Hand detection using model or classification is to build a decision rule that will discriminate between skin and non-skin pixels. Identifying skin color pixels involves finding the range of values for which most skin pixels would fall in a given color space. All external factors will be eliminated to detect the hand and its color in the image in complex background.

  5. 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.

  6. Eye-dominance, writing hand, and throwing hand.

    Science.gov (United States)

    McManus, I C; Porac, C; Bryden, M P; Boucher, R

    1999-04-01

    Handedness and eye-dominance are undoubtedly associated statistically, although a previous meta-analysis has found that the precise relationship is difficult to explain, with about 35% of right-handers and 57% of left-handers being left eye dominant. Of particular difficulty to genetic or other models is that the proportions are distributed asymmetrically around 50%. The present study asked whether this complicated pattern of association occurred because, following Peters, it is necessary to divide right-and left-handers into consistent handers (who write and throw with the same hand) and inconsistent handers (who write and throw with opposite hands). In an analysis of 10,635 subjects from questionnaire studies, 28.8% of left-handers and 1.6% of right-handers by writing were inconsistent for throwing. Our results also showed that writing hand and throwing hand both relate independently to eyedness, that throwing hand is somewhat more strongly associated with eyedness, and that the awkward asymmetry around 50% is now removed, 24.2% of consistent right-handers being left eye dominant compared with 72.3% of consistent left-handers, and 55.4% of inconsistent right-handers compared with 47.0% of inconsistent left-handers. We conclude that eyedness is phenotypically secondary to writing and throwing handedness. In our discussion we note that eyedness runs in families, we present new data suggesting that writing hand and throwing hand are co-inherited, and we argue that further data are now required to model properly the associations of writing hand, throwing hand, and eyedness, as well as probably also footedness and language dominance.

  7. Bite the hand that sprays you.

    Science.gov (United States)

    Ismailjee, Sameer B; Bernstein, Jack M; Burdette, Steven D

    2006-01-01

    A 56-year-old man presented with a cutaneous lesion on his right hand (Figure 1). Approximately 6 weeks previously, he had traveled to Costa Rica for missionary work. During his travel he used a diethyltoluamide-containing insect repellant, but spent one night in the jungle without a mosquito net. Four weeks after his return, he noted a 3 x 2.5-cm ulcer with raised edges and surrounding erythema on the dorsum of his right hand. The patient recalled applying insect repellant with his right hand to other exposed areas of his body but was remiss in applying it to the right hand itself. On examination, the patient was noted to have an ulcerated nodule near his right earlobe (Figure 2) and a second 2 x 1-cm ulcer on the volar aspect of his right wrist (Figure 3). There were no mucocutaneous lesions noted. During the next several weeks, numerous nodules developed in a sporotrichoid pattern on the extensor surface of his right arm (Figure 4). Skin biopsy was performed at the time of initial evaluation and revealed cutaneous leishmaniasis due to Leishmania panamensis. After discussing the different treatment options, miltefosine was administered orally for 28 days. The patient experienced an excellent response to therapy.

  8. Hand-related physical function in rheumatic hand conditions

    DEFF Research Database (Denmark)

    Klokker, Louise; Terwee, Caroline B; Wæhrens, Eva Ejlersen

    2016-01-01

    through the use of focus groups. If patients deem necessary, we will develop new items based on the patients' input. We will examine whether it is valid to score all selected and developed items on the same scale as the original items from the PROMIS PF item bank. Our analyses will follow the methods used...... will be obtained from all participants. We aim to disseminate the results of the study through publication in international peer-reviewed journals and at international conferences....... and their psychometric qualities. We aim to develop a PROM instrument to assess hand-related physical function in rheumatic hand conditions. METHODS AND ANALYSIS: We will perform a systematic search to identify existing PROMs to rheumatic hand conditions, and select items relevant for hand-related physical function...

  9. 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.

  10. Hand function after nerve repair.

    Science.gov (United States)

    Lundborg, G; Rosén, B

    2007-02-01

    Treatment of injuries to major nerve trunks in the hand and upper extremity remains a major and challenging reconstructive problem. Such injuries may cause long-lasting disabilities in terms of lost fine sensory and motor functions. Nowadays there is no surgical repair technique that can ensure recovery of tactile discrimination in the hand of an adult patient following nerve repair while very young individuals usually regain a complete recovery of functional sensibility. Post-traumatic nerve regeneration is a complex biological process where the outcome depends on multiple biological and environmental factors such as survival of nerve cells, axonal regeneration rate, extent of axonal misdirection, type of injury, type of nerve, level of the lesion, age of the patient and compliance to training. A major problem is the cortical functional reorganization of hand representation which occurs as a result of axonal misdirection. Although protective sensibility usually occurs following nerve repair, tactile discriminative functions seldom recover--a direct result of cortical remapping. Sensory re-education programmes are routinely applied to facilitate understanding of the new sensory patterns provided by the hand. New trends in hand rehabilitation focus on modulation of central nervous processes rather than peripheral factors. Principles are being evolved to maintain the cortical hand representation by using the brain capacity for visuo-tactile and audio-tactile interaction for the initial phase following nerve injury and repair (phase 1). After the start of the re-innervation of the hand (phase 2), selective de-afferentation, such as cutaneous anaesthesia of the forearm of the injured hand, allows expansion of the nerve-injured cortical hand representation, thereby enhancing the effects of sensory relearning. Recent data support the view that training protocols specifically addressing the relearning process substantially increase the possibilities for improved

  11. 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.

  12. Compartment Syndrome of the Hand.

    Science.gov (United States)

    Oak, Nikhil R; Abrams, Reid A

    2016-07-01

    Hand compartment syndrome has many etiologies; untreated, it has dire functional consequences. Intracompartmental pressure exceeding capillary filling pressure causes decreased tissue perfusion resulting in progressive ischemic death of compartment contents. Clinical findings can evolve. Serial physical examinations are recommended and, if equivocal, interstitial pressure monitoring is indicated. Definitive management is emergent fasciotomies with incisions designed to decompress the involved hand compartments, which could include the thenar, hypothenar, and interosseous compartments, and the carpal tunnel. Careful wound care, edema management, splinting, and hand therapy are critical. Therapy should start early postoperatively, possibly before wound closure. Copyright © 2016 Elsevier Inc. All rights reserved.

  13. Responsibility and hand washing behaviour.

    Science.gov (United States)

    Taylor, Jasmine; Purdon, Christine

    2016-06-01

    Recent research suggests that compulsions persist due to a self-perpetuating mechanism of poor memory confidence and repetition. However, most of this work has examined checking compulsions and findings may not generalize well to washing compulsions. This study examined the role of responsibility in the persistence of washing behaviour. Hand washing was examined in undergraduates (n = 80) high and low in contamination fears (CF) under conditions of high or low responsibility (RL). Wash duration and number of visits to objects/locations key to the wash (e.g., soap) were examined. Overvalued responsibility predicted washing duration across groups. Neither wash duration nor number of visits was associated with memory for the wash. Wash duration predicted post-wash certainty that the wash had prevented harm, but only in the high CF group, and that effect varied according to RL: longer wash duration predicted greater certainty under conditions of low RL but predicted less certainty under conditions of high RL. Greater repetition predicted poorer sensory confidence, but only in the high CF group under high RL conditions. The data were collected in an analogue sample of modest size. Replication in a clinical sample is required. Self-perpetuating mechanisms identified in perseverative checking seem to also be present in perseverative washing, but only under conditions of high responsibility. Sensory confidence may be more important to perseverative washing than memory confidence. More research is required to understand self-perpetuating mechanisms at play when washing to under conditions of high responsibility. Copyright © 2016 Elsevier Ltd. All rights reserved.

  14. [Health services research: the example of hand eczema].

    Science.gov (United States)

    Apfelbacher, C J; Diepgen, T L

    2011-03-01

    Hand eczema is one of the most frequent skin diseases with a lifetime prevalence of up to 15% and a median incidence rate of 6 cases per 1000 person-years. Female gender, contact allergy, atopic eczema and wet work have been identified as the most important associated risk factors. Hand eczema has a high public health and socio-economic significance, since the vast majority of occupational skin disease is hand eczema. Hand eczema is often chronic, chronically relapsing or persisting. It entails substantial impairment of health-related quality of life for the affected individual. The cost-of-illness of hand eczema is estimated to be in the range of moderate to severe psoriasis and even higher than that of atopic eczema. Although various therapeutic options to treat hand eczema exist, an assessment of these options in randomized, controlled clinical trials to build up an evidence base is mostly lacking. The investigation of the treatment of chronic hand eczema under everyday conditions in dermatological clinics and private practices has only just begun. The first register of patients with chronic hand eczema (acronym: carpe) is expected to yield substantial insights in the effectiveness and safety of different therapeutic measures. A related task is the assessment of the quality of care in the light of the guidelines for the management of chronic hand eczema.

  15. Hands-On Bulletin Boards.

    Science.gov (United States)

    Henneman, Dawn

    1984-01-01

    Patterns and directions are given for making bulletin boards that teach language arts and mathematics skills through hands-on student involvement. The boards help teach multiplication tables, word contractions, letter sounds, homonyms, compound words, alphabetization, and other skills. (PP)

  16. Arthritis of the hand - Rheumatoid

    Science.gov (United States)

    ... Media Find a Hand Surgeon Home Anatomy Rheumatoid Arthritis Email to a friend * required fields From * To * DESCRIPTION In its most literal sense, arthritis means “inflamed joint.” Arthritis describes any condition where ...

  17. Neural bases of hand synergies.

    Science.gov (United States)

    Santello, Marco; Baud-Bovy, Gabriel; Jörntell, Henrik

    2013-01-01

    The human hand has so many degrees of freedom that it may seem impossible to control. A potential solution to this problem is "synergy control" which combines dimensionality reduction with great flexibility. With applicability to a wide range of tasks, this has become a very popular concept. In this review, we describe the evolution of the modern concept using studies of kinematic and force synergies in human hand control, neurophysiology of cortical and spinal neurons, and electromyographic (EMG) activity of hand muscles. We go beyond the often purely descriptive usage of synergy by reviewing the organization of the underlying neuronal circuitry in order to propose mechanistic explanations for various observed synergy phenomena. Finally, we propose a theoretical framework to reconcile important and still debated concepts such as the definitions of "fixed" vs. "flexible" synergies and mechanisms underlying the combination of synergies for hand control.

  18. American Association for Hand Surgery

    Science.gov (United States)

    ... Hand Care Provider Connect With Us: Notice Regarding Hurricane Irma and Hurricane Maria in Puerto Rico The AAHS ... closely monitoring the situation in Puerto Rico following Hurricane Irma and Hurricane Maria. Leadership and staff have been ...

  19. American Society of Hand Therapists

    Science.gov (United States)

    ... there is brush and fuel for the fire. Residence in the area next to these foothills (like ... Hope Orthopedics - Salem, OR CHT/Hand Therapist - Duke University Hospital - Adult Ambulatory Division PT/OT - Durham, NC ...

  20. Hands-On Bulletin Boards.

    Science.gov (United States)

    Henneman, Dawn

    1984-01-01

    Patterns and directions are given for making bulletin boards that teach language arts and mathematics skills through hands-on student involvement. The boards help teach multiplication tables, word contractions, letter sounds, homonyms, compound words, alphabetization, and other skills. (PP)

  1. Principles of Hand Fracture Management

    Science.gov (United States)

    Haughton, DN; Jordan, D; Malahias, M; Hindocha, S; Khan, W

    2012-01-01

    The hand is essential in humans for physical manipulation of their surrounding environment. Allowing the ability to grasp, and differentiated from other animals by an opposing thumb, the main functions include both fine and gross motor skills as well as being a key tool for sensing and understanding the immediate surroundings of their owner. Hand fractures are the most common fractures presenting at both accident and emergency and within orthopaedic clinics. Appropriate evaluation at first presentation, as well as during their management, can significantly prevent both morbidity and disability to a patient. These decisions are dependant on a wide range of factors including age, hand dominance, occupation and co-morbidities. A fracture is best described as a soft tissue injury with an associated bony injury. Despite this being the case, this paper intends to deal mainly with the bone injury and aims to discuss both the timing, as well as the methods available, of hand fracture management. PMID:22423303

  2. Right-handed sector lepto-genesis

    Energy Technology Data Exchange (ETDEWEB)

    Frigerio, M. [CEA Saclay, Service de Physique Theorique, 91 - Gif-sur-Yvette (France); Hambye, Th. [Madrid Universidad Autonoma, Instituto de F sica Te rica, Cantoblanco (Spain); Ma, E. [California Univ., Physics Dept., Riverside, California (United States)

    2006-07-01

    Instead of creating the observed baryon asymmetry of the universe by the decay of right-handed (RH) neutrinos to left-handed leptons, we propose to generate it dominantly by the decay of the RH neutrinos to RH leptons. This mechanism turns out to be successful in large regions of the parameter space. It may work, in particular, at a scale as low as a few TeV, with no need to invoke quasi-degenerate RH neutrino masses to resonantly enhance the asymmetry. Such a possibility can be probed experimentally by the observation at colliders of a singlet charged Higgs particle and of RH neutrinos. Other mechanisms which may lead to successful lepton-genesis from the RH lepton sector interactions are also briefly presented. The incorporation of these scenarios in left-right symmetric and unified models is discussed. (authors)

  3. SOPHIA: Soft Orthotic Physiotherapy Hand Interactive Aid

    Directory of Open Access Journals (Sweden)

    Alistair C. McConnell

    2017-06-01

    Full Text Available This work describes the design, fabrication, and initial testing of a Soft Orthotic Physiotherapy Hand Interactive Aid (SOPHIA for stroke rehabilitation. SOPHIA consists of (1 a soft robotic exoskeleton, (2 a microcontroller-based control system driven by a brain–machine interface (BMI, and (3 a sensorized glove for passive rehabilitation. In contrast to other rehabilitation devices, SOPHIA is the first modular prototype of a rehabilitation system that is capable of three tasks: aiding extension based assistive rehabilitation, monitoring patient exercises, and guiding passive rehabilitation. Our results show that this prototype of the device is capable of helping healthy subjects to open their hand. Finger extension is triggered by a command from the BMI, while using a variety of sensors to ensure a safe motion. All data gathered from the device will be used to guide further improvements to the prototype, aiming at developing specifications for the next generation device, which could be used in future clinical trials.

  4. 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.

  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 function after nerve repair.

    OpenAIRE

    Lundborg, Göran; Rosén, Birgitta

    2007-01-01

    Treatment of injuries to major nerve trunks in the hand and upper extremity remains a major and challenging reconstructive problem. Such injuries may cause long-lasting disabilities in terms of lost fine sensory and motor functions. Nowadays there is no surgical repair technique that can ensure recovery of tactile discrimination in the hand of an adult patient following nerve repair while very young individuals usually regain a complete recovery of functional sensibility. Post-traumatic nerve...

  7. Replantation (Finger, Hand, or Arm)

    Science.gov (United States)

    ... per month. The number of inches from the injury to the tip of a finger gives the minimum number of months after which ... Replantation refers to the surgical reattachment of a finger, hand, or arm that has been completely cut from a person’s ... 2017 by American Society for Surgery of the Hand × Search Tips Tip 1: Start with the basics like "carpal ...

  8. 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

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

    Directory of Open Access Journals (Sweden)

    Marieke Rohde

    Full Text Available 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

  10. Bimanual-vertical hand movements.

    Science.gov (United States)

    Kwon, Jay C; Cohen, Matthew L; Williamson, John; Burtis, Brandon; Heilman, Kenneth M

    2011-07-01

    Patients often demonstrate attentional and action-intentional biases in both the transverse and coronal planes. In addition, when making forelimb movements in the transverse plane, normal participants also have spatial and magnitude asymmetries, but forelimb spatial asymmetries have not been studied in coronal space. Thus, to learn if when normal people make vertical movements they have right-left spatial and magnitude biases, seventeen healthy, blindfolded volunteers had their hands (holding pens) placed vertically in their midsagittal plane, 10 inches apart, on pieces of paper positioned above, below, and at eye-level. Participants were asked to move their hands together vertically and meet in the middle. Participants demonstrated less angular deviation in the below-eye condition than in the other spatial conditions, when moving down than up, and with their right than left hand. Movements toward eye level from upper or lower space were also more accurate than movements in the other directions. Independent of hand, lines were longer with downward than upward movements and the right hand moved more distance than the left. These attentional-intentional asymmetries may be related to gravitational force, hand-hemispheric dominance, and spatial "where" asymmetries; however, the mechanisms accounting for these asymmetries must be ascertained by future research.

  11. Work environment quality

    DEFF Research Database (Denmark)

    Knudsen, Herman; Busck, Ole Gunni; Lind, Jens

    2011-01-01

    The article explores how employee participation influences the quality of the work environment and workers’ well-being at 11 Danish workplaces from within six different industries. Both direct participation and representative forms of participation at the workplace level were studied. Statistical...... as well as qualitative comparative analyses reveal that work environment quality and high levels of participation go hand in hand. Within a typology of participation models the highest level of participation, including strong elements of collective participation, and also the best work environment......, measured as ‘psychosocial well-being’, were found at workplaces managed in accordance with democratic principles....

  12. Work environment quality

    DEFF Research Database (Denmark)

    Knudsen, Herman; Busck, Ole Gunni; Lind, Jens

    2011-01-01

    The article explores how employee participation influences the quality of the work environment and workers’ well-being at 11 Danish workplaces from within six different industries. Both direct participation and representative forms of participation at the workplace level were studied. Statistical...... as well as qualitative comparative analyses reveal that work environment quality and high levels of participation go hand in hand. Within a typology of participation models the highest level of participation, including strong elements of collective participation, and also the best work environment...

  13. Making Science Teams Work

    Science.gov (United States)

    Miller, Roxanne Greitz

    2004-01-01

    Science teachers, likely have more experience with students working together than teachers in any other subject area due to teaming students for hands-on activities. While the importance of teamwork is emphasized in the National Science Education Standards, getting teams to actually work-meaning getting students to share equally in the academic…

  14. Cloisonne Works of Beijing

    Institute of Scientific and Technical Information of China (English)

    1995-01-01

    CLOISONNE, or enamel work on red copper, is a traditional handicraft in Beijing. It has a history of more than 500 years in China. Cloisonne requires precise and careful work. The body is made of red copper, tapped into shape by hand. Then thin copper wires are twisted into the desired shapes and

  15. 3D Visual Sensing of the Human Hand for the Remote Operation of a Robotic Hand

    Directory of Open Access Journals (Sweden)

    Pablo Gil

    2014-02-01

    Full Text Available New low cost sensors and open free libraries for 3D image processing are making important advances in robot vision applications possible, such as three- dimensional object recognition, semantic mapping, navigation and localization of robots, human detection and/or gesture recognition for human-machine interaction. In this paper, a novel method for recognizing and tracking the fingers of a human hand is presented. This method is based on point clouds from range images captured by a RGBD sensor. It works in real time and it does not require visual marks, camera calibration or previous knowledge of the environment. Moreover, it works successfully even when multiple objects appear in the scene or when the ambient light is changed. Furthermore, this method was designed to develop a human interface to control domestic or industrial devices, remotely. In this paper, the method was tested by operating a robotic hand. Firstly, the human hand was recognized and the fingers were detected. Secondly, the movement of the fingers was analysed and mapped to be imitated by a robotic hand.

  16. 3D Visual Sensing of the Human Hand for the Remote Operation of a Robotic Hand

    Directory of Open Access Journals (Sweden)

    Pablo Gil

    2014-02-01

    Full Text Available New low cost sensors and open free libraries for 3D image processing are making important advances in robot vision applications possible, such as three-dimensional object recognition, semantic mapping, navigation and localization of robots, human detection and/or gesture recognition for human-machine interaction. In this paper, a novel method for recognizing and tracking the fingers of a human hand is presented. This method is based on point clouds from range images captured by a RGBD sensor. It works in real time and it does not require visual marks, camera calibration or previous knowledge of the environment. Moreover, it works successfully even when multiple objects appear in the scene or when the ambient light is changed. Furthermore, this method was designed to develop a human interface to control domestic or industrial devices, remotely. In this paper, the method was tested by operating a robotic hand. Firstly, the human hand was recognized and the fingers were detected. Secondly, the movement of the fingers was analysed and mapped to be imitated by a robotic hand.

  17. Hand infections: a retrospective analysis

    Directory of Open Access Journals (Sweden)

    Tolga Türker

    2014-09-01

    Full Text Available Purpose. Hand infections are common, usually resulting from an untreated injury. In this retrospective study, we report on hand infection cases needing surgical drainage in order to assess patient demographics, causation of infection, clinical course, and clinical management.Methods. Medical records of patients presenting with hand infections, excluding post-surgical infections, treated with incision and debridement over a one-year period were reviewed. Patient demographics; past medical history; infection site(s and causation; intervals between onset of infection, hospital admission, surgical intervention and days of hospitalization; gram stains and cultures; choice of antibiotics; complications; and outcomes were reviewed.Results. Most infections were caused by laceration and the most common site of infection was the palm or dorsum of the hand. Mean length of hospitalization was 6 days. Methicillin-resistant Staphylococcus aureus, beta-hemolytic Streptococcus and methicillin-susceptible Staphylococcus aureus were the most commonly cultured microorganisms. Cephalosporins, clindamycin, amoxicillin/clavulanate, penicillin, vancomycin, and trimethoprim/sulfamethoxazole were major antibiotic choices. Amputations and contracture were the primary complications.Conclusions. Surgery along with medical management were key to treatment and most soft tissue infections resolved without further complications. With prompt and appropriate care, most hand infection patients can achieve full resolution of their infection.

  18. Predicting Sustainable Work Behavior

    DEFF Research Database (Denmark)

    Hald, Kim Sundtoft

    2013-01-01

    Sustainable work behavior is an important issue for operations managers – it has implications for most outcomes of OM. This research explores the antecedents of sustainable work behavior. It revisits and extends the sociotechnical model developed by Brown et al. (2000) on predicting safe behavior....... Employee characteristics and general attitudes towards safety and work condition are included in the extended model. A survey was handed out to 654 employees in Chinese factories. This research contributes by demonstrating how employee- characteristics and general attitudes towards safety and work...... condition influence their sustainable work behavior. A new definition of sustainable work behavior is proposed....

  19. Hands deliverable 1.3.4: Annual progress report

    DEFF Research Database (Denmark)

    Øhrstrøm, Peter; Aagaard, Morten; Paulsen, Emil;

    2011-01-01

    This document presents an overview of the work carried out within the HANDS project in the period from June 1, 2010, to October 31, 2011. It refers to the description of the project in Annex 1 (updated version in 2011). The objectives stated in Annex I are summarized and the work in the reporting...

  20. Design of Piano -playing Robotic Hand

    Directory of Open Access Journals (Sweden)

    Lin Jen-Chang

    2013-09-01

    Full Text Available Unlike the market slowdown of industrial robots, service & entertainment robots have been highly regarded by most robotics reseach and market research agencies. In this study we developed a music playing robot (which can also work as a service robot for public performance. The research is mainly focused on the mechanical and electrical control of piano-playing robot, the exploration of correlations among music theory, rhythm and piano keys, and eventually the research on playing skill of keyboard instrument. The piano-playing robot is capable of control linear motor, servo-motor and pneumatic devices in accordance with the notes and rhythm in order to drive the mechanical structure to proper positions for pressing the keys and generating music. The devices used for this robot are mainly crucial components produced by HIWIN Technology Corp. The design of robotic hand is based on the direction of anthropomorphic hand such that five fingers will be used for playing piano. The finger actuations include actions of finger rotation, finger pressing, and finger lifting; time required for these 3 stages must meet the requirement of rhythm. The purpose of entertainment robot can be achieved by playing electric piano with robotic hand, and we hope this research can contribute to the development of domestic entertainment music playing robots.

  1. Your hands are precious, look after them!

    CERN Multimedia

    2003-01-01

    With their 27 bones, 33 muscles and 22 joints, hands are the most complicated and at the same time the most useful parts of the body. Without them, we would not be able to grip things between our fingers, pick them up, turn them, lift them, hold them or handle them. Due to this very usefulness, however, they are more prone to injury than any other part of the body. This year, over 30% of CERN's industrial accidents involved hand injuries. Many of these accidents could have been avoided if the people concerned had worn suitable gloves or, quite simply, made proper use of tools adapted to the work they were doing. 1. Mechanically sustained injuries Most hand injuries are mechanically sustained. - Cuts and pricks often occur during the use or handling of sharp objects and tools. The Medical Service has treated many patients with cuts received when handling iron plates or when using cutters without taking adequate precautions. Such injuries range from superficial cuts to deep wounds with severed tendons or bl...

  2. Alcohol hand gel--a potential fire hazard.

    Science.gov (United States)

    O'Leary, Fionnuala M; Price, Gareth J

    2011-01-01

    Alcohol hand gel and wipes are the common method of disinfecting the hands of healthcare workers and working surfaces in clinical settings. We present a case of a 40-year-old health care support worker who was referred acutely to our burns unit following flame burns in association with alcohol gel use. Fortunately she was able to extinguish the flames without sustaining a significant thermal injury however this case highlights the potential danger associated with alcohol gel use, especially with smokers. With the ever increasing use of alcohol hand gel, not only in healthcare settings but also in the general population there needs to be clearer warnings regarding the potential for ignition after use. Alcohol hand gel and wipes are the common method of disinfecting the hands of healthcare workers and working surfaces in clinical settings. Most trusts have strict policies regarding mandatory sanitisation of hands before and after patient contact. This is most easily achieved by the use of alcohol gel due to its ease of use and quick drying properties. As a result alcohol hand disinfectant is available is a variety of formats including foam, gel and wipes. It is also now widely available for use to the general public.

  3. Retirement Planning Among Hispanics: In God's Hands?

    Science.gov (United States)

    Blanco, Luisa R; Aguila, Emma; Gongora, Arturo; Duru, O Kenrik

    2016-12-15

    We conducted a qualitative study on retirement preparedness among middle-aged and older low-income Hispanics in Los Angeles. Data were derived from four focus groups conducted in the greater Los Angeles area. Findings demonstrate how behavioral and cultural factors-family experiences, religiosity, and denial of retirement-explain the lack of savings and preparedness for retirement. Findings also indicate that the majority of participants want to be economically independent and to keep working until they are unable to do so. Participants helped their parents financially but did not feel comfortable asking their own children for help. Instead, participants placed their survival in retirement "in God's hands."

  4. Hand transplantation--a review.

    Science.gov (United States)

    MacKay, Brendan J; Nacke, Elliot; Posner, Martin

    2014-01-01

    Hand transplantation is a treatment option for complex injuries that leave patients with structural, functional, and aesthetic deficits that cannot be addressed by other means. It is a form of vascularized composite tissue allotransplantation (CTA). CTA is the highest rung the reconstructive ladder due to its complex technical and immunologic challenges. Despite completion of the first successful hand transplant in 1999, our understanding of hand transplantation is still evolving. Ongoing research is needed to improve functional outcomes and decrease the morbidity associated with long-term immunosuppression. This review will discuss the current protocols for upper extremity donation, transplant receipt, surgical technique, postoperative rehabilitation and immunosuppression, nerve regeneration, functional outcomes, ethical issues, and financial considerations.

  5. 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.

  6. [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.

  7. Left hand dominance affects supra-second time processing

    Directory of Open Access Journals (Sweden)

    Carmelo Mario Vicario

    2011-10-01

    Full Text Available Previous works exploring the brain functions of left-handed and right-handed people have shown variances in spatial and motor abilities that might be explained according to consistent structural and functional differences. Given the role of both spatial and motor information in the processing temporal intervals, we designed a study investigating timing abilities in left-handed subjects. To this purpose left-handed and right-handed subjects were asked to perform a time reproduction of sub-second vs. supra-second time intervals with their left and right hand.Our results show that left-handed participants sub-estimated the processing of the supra-second intervals, independently of the hand used to perform the task, while no differences were reported for the sub-second intervals. These results are discussed according to recent advances on suprasecond motor timing research as well as emerging evidences which suggest a linear representation of time with a left-to-right displacing.

  8. Natural control capabilities of robotic hands by hand amputated subjects.

    Science.gov (United States)

    Atzori, Manfredo; Gijsberts, Arjan; Caputo, Barbara; Muller, Henning

    2014-01-01

    People with transradial hand amputations who own a myoelectric prosthesis currently have some control capabilities via sEMG. However, the control systems are still limited and not natural. The Ninapro project is aiming at helping the scientific community to overcome these limits through the creation of publicly available electromyography data sources to develop and test machine learning algorithms. In this paper we describe the movement classification results gained from three subjects with an homogeneous level of amputation, and we compare them with the results of 40 intact subjects. The number of considered subjects can seem small at first sight, but it is not considering the literature of the field (which has to face the difficulty of recruiting trans-radial hand amputated subjects). The classification is performed with four different classifiers and the obtained balanced classification rates are up to 58.6% on 50 movements, which is an excellent result compared to the current literature. Successively, for each subject we find a subset of up to 9 highly independent movements, (defined as movements that can be distinguished with more than 90% accuracy), which is a deeply innovative step in literature. The natural control of a robotic hand in so many movements could lead to an immediate progress in robotic hand prosthetics and it could deeply change the quality of life of amputated subjects.

  9. 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

  10. Hand Allograft Saved by an Ultrathin Groin Flap

    Science.gov (United States)

    Château, Joseph; Gazarian, Aram; Boucher, Fabien; Badet, Lionel; Braye, Fabienne; Saint-Cyr, Michel

    2016-01-01

    Summary: We report a case of a young double-hand allotransplant patient who presented with a full-thickness skin necrosis of the dorsum of the left hand after vascular compromise of the allotransplantation. Considering the lack of viable dorsal tissue overlying the extensor tendons and the need for early hand rehabilitation, an ultrathin pedicled groin flap was used for the coverage. This procedure resulted in salvaging the allotransplantation, and the patient was able to successfully return to work after his surgery. To our knowledge, this is the only case of an upper extremity allotransplant salvaged by a pedicled flap.

  11. Recognizing the Operating Hand and the Hand-Changing Process for User Interface Adjustment on Smartphones †

    Science.gov (United States)

    Guo, Hansong; Huang, He; Huang, Liusheng; Sun, Yu-E

    2016-01-01

    As the size of smartphone touchscreens has become larger and larger in recent years, operability with a single hand is getting worse, especially for female users. We envision that user experience can be significantly improved if smartphones are able to recognize the current operating hand, detect the hand-changing process and then adjust the user interfaces subsequently. In this paper, we proposed, implemented and evaluated two novel systems. The first one leverages the user-generated touchscreen traces to recognize the current operating hand, and the second one utilizes the accelerometer and gyroscope data of all kinds of activities in the user’s daily life to detect the hand-changing process. These two systems are based on two supervised classifiers constructed from a series of refined touchscreen trace, accelerometer and gyroscope features. As opposed to existing solutions that all require users to select the current operating hand or confirm the hand-changing process manually, our systems follow much more convenient and practical methods and allow users to change the operating hand frequently without any harm to the user experience. We conduct extensive experiments on Samsung Galaxy S4 smartphones, and the evaluation results demonstrate that our proposed systems can recognize the current operating hand and detect the hand-changing process with 94.1% and 93.9% precision and 94.1% and 93.7% True Positive Rates (TPR) respectively, when deciding with a single touchscreen trace or accelerometer-gyroscope data segment, and the False Positive Rates (FPR) are as low as 2.6% and 0.7% accordingly. These two systems can either work completely independently and achieve pretty high accuracies or work jointly to further improve the recognition accuracy. PMID:27556461

  12. Mind your hand during the energy crunch: Functional Outcome of Circular Saw Hand Injuries.

    Science.gov (United States)

    Frank, Matthias; Hecht, Juliane; Napp, Matthias; Lange, Joern; Grossjohann, Rico; Stengel, Dirk; Schmucker, Uli; Ekkernkamp, Axel; Hinz, Peter

    2010-09-06

    Although injuries due to circular saws are very common all over the world, there is surprisingly little information available about their functional outcomes. As the socioeconomic impact of these injuries is immense and determined by the casualties' disability and impairment, it is the objective of this study to present data on the functional outcome, disability, and impairment of hand injuries due to electric circular saws. Patients treated from 1999 through 2007 for circular saw-related hand injuries were contacted and asked for clinical follow-up assessment. The clinical follow-up protocol consisted of a physical examination and an assessment of static muscle power (grip and pinch strength). For assessment of the subjective experience of the patients regarding their injury-related disability and impairment, the DASH follow-up questionnaire was used. The occupational impact of these injuries was measured by number of lost working days. Finally, safety-related behaviour of the patients was investigated. 114 Patients were followed-up on average 52 months after the injury. Average in-house treatment was 8.8 days. Average time lost from work was 14.8 weeks. A significant reduction of static muscle testing parameters compared with the uninjured hand was revealed for grip strength, tip pinch, key pinch, and palmar pinch. Average DASH score was 17.4 (DASH work 15.8, DASH sports/music 17.7). Most patients had more than ten years experience in using these power tools. The everyday occurrence of circular saw-related hand injuries followed by relatively short periods of in-house treatment might distort the real dimension of the patients' remaining disability and impairment. While the trauma surgeon's view is generally confined to the patients' clinical course, the outcome parameters in this follow-up investigation, with loss of working time as the key factor, confirm that the whole socioeconomic burden is much greater than the direct cost of treatment.

  13. Stability Analysis of Grasps with a Robotic Multifingered Hand

    Institute of Scientific and Technical Information of China (English)

    WAN An-hua

    2005-01-01

    Stability is a significant property for a robot hand grasp to perform complex tasks similar to human hands. The common method to investigate the stability of robotic multi-fingered grasp system is Lyapunov direct method, but usually it is rather difficult to construct a proper Lyapunov function. Avoiding the hard work of constructing a Lyapunov function, we propose the sufficient conditions for stability of the robotic grasp system.

  14. Hand based visual intent recognition algorithm for wheelchair motion

    CSIR Research Space (South Africa)

    Luhandjula, T

    2010-05-01

    Full Text Available Speed Variation Vertical motion Down Increase speed Vertical motion Up Decrease speed No Vertical motion (Centred hand) Move at constant speed For direction classification the method consists in extracting a symmetry curve from the input... image with the hand as object of interest, and a classifier (in this work the classification task has been performed using a neural network and a support vector machine) is used to distinguish between the symmetry curves associated the different...

  15. Viewpoint Invariant Gesture Recognition and 3D Hand Pose Estimation Using RGB-D

    Science.gov (United States)

    Doliotis, Paul

    2013-01-01

    The broad application domain of the work presented in this thesis is pattern classification with a focus on gesture recognition and 3D hand pose estimation. One of the main contributions of the proposed thesis is a novel method for 3D hand pose estimation using RGB-D. Hand pose estimation is formulated as a database retrieval problem. The proposed…

  16. Hand eczema among healthcare professionals in the Netherlands: prevalence, absenteeism, and presenteeism

    NARCIS (Netherlands)

    Meer, E.W. van der; Boot, C.R.L.; Gulden, J.W.J. van der; Jungbauer, F.H.; Coenraads, P.J.; Anema, J.R.

    2013-01-01

    BACKGROUND: Healthcare professionals have a high risk of developing hand eczema. Hand eczema can interfere with their work. OBJECTIVES: To investigate the prevalence of self-reported hand eczema among healthcare professionals in the Netherlands, and to investigate absenteeism and presenteeism result

  17. Hand eczema among healthcare professionals in the Netherlands : prevalence, absenteeism, and presenteeism

    NARCIS (Netherlands)

    van der Meer, Esther W. C.; Boot, Cecile R. L.; van der Gulden, Joost W. J.; Jungbauer, Frank H. W.; Coenraads, Pieter Jan; Anema, Johannes R.

    2013-01-01

    Background. Healthcare professionals have a high risk of developing hand eczema. Hand eczema can interfere with their work. Objectives. To investigate the prevalence of self-reported hand eczema among healthcare professionals in the Netherlands, and to investigate absenteeism and presenteeism result

  18. Intrinsic contractures of the hand.

    Science.gov (United States)

    Paksima, Nader; Besh, Basil R

    2012-02-01

    Contractures of the intrinsic muscles of the fingers disrupt the delicate and complex balance of intrinsic and extrinsic muscles, which allows the hand to be so versatile and functional. The loss of muscle function primarily affects the interphalangeal joints but also may affect etacarpophalangeal joints. The resulting clinical picture is often termed, intrinsic contracture or intrinsic-plus hand. Disruption of the balance between intrinsic and extrinsic muscles has many causes and may be secondary to changes within the intrinsic musculature or the tendon unit. This article reviews diagnosis, etiology, and treatment algorithms in the management of intrinsic contractures of the fingers. Copyright © 2012 Elsevier Inc. All rights reserved.

  19. Hand Recognition in Live-Streaming Video

    OpenAIRE

    Mikhail, Belov

    2011-01-01

    The article describes the algorithmic component of the pattern recognition method for extracting hand patterns from a video stream. Methods removing excess information from frames, localizing fragments with a hand and extracting hand contours to classify them are described.

  20. 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…

  1. 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…

  2. 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

  3. Management of chronic hand eczema

    NARCIS (Netherlands)

    Diepgen, Thomas L.; Agner, Tove; Aberer, Werner; Berth-Jones, John; Cambazard, Frederic; Elsner, Peter; McFadden, John; Coenraads, Pieter Jan

    2007-01-01

    Hand eczema (HE) is one of the most frequent skin diseases and has often a chronically relapsing course with a poor prognosis resulting in a high social and economic impact for the individual and the society. In this article, we highlight the results of an expert workshop on the 'management of sever

  4. Hand hygiene among laboratory workers.

    NARCIS (Netherlands)

    Alp, E.; Haverkate, D.; Voss, A.

    2006-01-01

    We performed a study to measure the compliance of laboratory personnel with different components of hand hygiene. The level of compliance at the end of duty was 100%; however, 36.7% of subjects wore a ring, 46.9% wore a watch, and 6.1% wore a bracelet. Pathogenic microorganisms were exclusively

  5. Hand hygiene among laboratory workers.

    NARCIS (Netherlands)

    Alp, E.; Haverkate, D.; Voss, A.

    2006-01-01

    We performed a study to measure the compliance of laboratory personnel with different components of hand hygiene. The level of compliance at the end of duty was 100%; however, 36.7% of subjects wore a ring, 46.9% wore a watch, and 6.1% wore a bracelet. Pathogenic microorganisms were exclusively foun

  6. Hand-held medical robots.

    Science.gov (United States)

    Payne, Christopher J; Yang, Guang-Zhong

    2014-08-01

    Medical robots have evolved from autonomous systems to tele-operated platforms and mechanically-grounded, cooperatively-controlled robots. Whilst these approaches have seen both commercial and clinical success, uptake of these robots remains moderate because of their high cost, large physical footprint and long setup times. More recently, researchers have moved toward developing hand-held robots that are completely ungrounded and manipulated by surgeons in free space, in a similar manner to how conventional instruments are handled. These devices provide specific functions that assist the surgeon in accomplishing tasks that are otherwise challenging with manual manipulation. Hand-held robots have the advantages of being compact and easily integrated into the normal surgical workflow since there is typically little or no setup time. Hand-held devices can also have a significantly reduced cost to healthcare providers as they do not necessitate the complex, multi degree-of-freedom linkages that grounded robots require. However, the development of such devices is faced with many technical challenges, including miniaturization, cost and sterility, control stability, inertial and gravity compensation and robust instrument tracking. This review presents the emerging technical trends in hand-held medical robots and future development opportunities for promoting their wider clinical uptake.

  7. Hand Washing: Do's and Dont's

    Science.gov (United States)

    ... aren't available. However, be sure to supervise young children using alcohol-based hand sanitizers. Remind your child to make sure the sanitizer completely dries before he or she touches anything. Store ... in child care settings. Young children cared for in groups outside the home ...

  8. Prosthetic Hand Lifts Heavy Loads

    Science.gov (United States)

    Carden, James R.; Norton, William; Belcher, Jewell G.; Vest, Thomas W.

    1991-01-01

    Prosthetic hand designed to enable amputee to lift diverse heavy objects like rocks and logs. Has simple serrated end effector with no moving parts. Prosthesis held on forearm by system of flexible straps. Features include ruggedness, simplicity, and relatively low cost.

  9. Factors used by program directors to select hand surgery fellows.

    Science.gov (United States)

    Nies, Matthew S; Bollinger, Alexander J; Cassidy, Charles; Jebson, Peter J L

    2014-11-01

    To identify factors and attributes hand surgery fellowship program directors consider important in selecting applicants for interview and ranking. A web-based questionnaire was sent to all hand fellowship program directors in the United States. The questionnaire was designed to identify the most important criteria in granting an interview, sources of letters of recommendation, the interview process, and factors used to rank a candidate. Each criterion was ranked in importance on a 1 to 5 Likert scale, with 1 being not important and 5 being critical. All responses were anonymous. The most important criterion for each section of the survey was determined by comparing the average Likert scores. Fifty-two of 76 program directors responded (68%). The criteria with the highest mean Likert scores for offering an applicant an interview were, in order, quality letters of recommendation from hand surgeons, completion of an orthopedic surgery residency, comments regarding the applicant's technical competence, applicant having an MD degree (as opposed to a DO degree), and residency program reputation. The letters of recommendation with the highest value were from the division chief of hand surgery and another hand surgeon in the division/department. The most important features of the interview were maturity of applicant, ability of applicant to articulate thoughts, ability to listen well, self-confidence, and relevant questions asked. The most important factors in ranking a candidate were applicant integrity, commitment to hard work, quality of letters of recommendation, quality of the interview, and ability to work well with other members of the hand surgery team. There are identifiable factors considered important by hand surgery fellowship directors when selecting and ranking an applicant. This information may be valuable to medical students and residents contemplating careers in hand surgery. Copyright © 2014 American Society for Surgery of the Hand. Published by Elsevier

  10. Postural Hand Synergies during Environmental Constraint Exploitation

    Directory of Open Access Journals (Sweden)

    Cosimo Della Santina

    2017-08-01

    Full Text Available Humans are able to intuitively exploit the shape of an object and environmental constraints to achieve stable grasps and perform dexterous manipulations. In doing that, a vast range of kinematic strategies can be observed. However, in this work we formulate the hypothesis that such ability can be described in terms of a synergistic behavior in the generation of hand postures, i.e., using a reduced set of commonly used kinematic patterns. This is in analogy with previous studies showing the presence of such behavior in different tasks, such as grasping. We investigated this hypothesis in experiments performed by six subjects, who were asked to grasp objects from a flat surface. We quantitatively characterized hand posture behavior from a kinematic perspective, i.e., the hand joint angles, in both pre-shaping and during the interaction with the environment. To determine the role of tactile feedback, we repeated the same experiments but with subjects wearing a rigid shell on the fingertips to reduce cutaneous afferent inputs. Results show the persistence of at least two postural synergies in all the considered experimental conditions and phases. Tactile impairment does not alter significantly the first two synergies, and contact with the environment generates a change only for higher order Principal Components. A good match also arises between the first synergy found in our analysis and the first synergy of grasping as quantified by previous work. The present study is motivated by the interest of learning from the human example, extracting lessons that can be applied in robot design and control. Thus, we conclude with a discussion on implications for robotics of our findings.

  11. A demonstration of the transition from ready-to-hand to unready-to-hand.

    Directory of Open Access Journals (Sweden)

    Dobromir G Dotov

    Full Text Available The ideas of continental philosopher Martin Heidegger have been influential in cognitive science and artificial intelligence, despite the fact that there has been no effort to analyze these ideas empirically. The experiments reported here are designed to lend empirical support to Heidegger's phenomenology and more specifically his description of the transition between ready-to-hand and unready-to-hand modes in interactions with tools. In experiment 1, we found that a smoothly coping cognitive system exhibits type positively correlated noise and that its correlated character is reduced when the system is perturbed. This indicates that the participant and tool constitute a self-assembled, extended device during smooth coping and this device is disrupted by the perturbation. In experiment 2, we examine the re-organization of awareness that occurs when a smoothly coping, self-assembled, extended cognitive system is perturbed. We found that the disruption is accompanied by a change in attention which interferes with participants' performance on a simultaneous cognitive task. Together these experiments show that a smoothly coping participant-tool system can be temporarily disrupted and that this disruption causes a change in the participant's awareness. Since these two events follow as predictions from Heidegger's work, our study offers evidence for the hypothesized transition from readiness-to-hand to unreadiness-to-hand.

  12. Robotic approaches for rehabilitation of hand function after stroke.

    Science.gov (United States)

    Lum, Peter S; Godfrey, Sasha B; Brokaw, Elizabeth B; Holley, Rahsaan J; Nichols, Diane

    2012-11-01

    The goal of this review was to discuss the impairments in hand function after stroke and present previous work on robot-assisted approaches to movement neurorehabilitation. Robotic devices offer a unique training environment that may enhance outcomes beyond what is possible with conventional means. Robots apply forces to the hand, allowing completion of movements while preventing inappropriate movement patterns. Evidence from the literature is emerging that certain characteristics of the human-robot interaction are preferable. In light of this evidence, the robotic hand devices that have undergone clinical testing are reviewed, highlighting the authors' work in this area. Finally, suggestions for future work are offered. The ability to deliver therapy doses far higher than what has been previously tested is a potentially key advantage of robotic devices that needs further exploration. In particular, more efforts are needed to develop highly motivating home-based devices, which can increase access to high doses of assisted movement therapy.

  13. A study of the difference between nominal and actual hand forces in two-handed sagittal plane whole-body exertions.

    Science.gov (United States)

    Hoffman, Suzanne G; Reed, Matthew P; Chaffin, Don B

    2011-01-01

    Given a task posture, changes in hand force magnitude and direction with regard to joint locations result in variations in joint loads. Previous work has quantified considerable vertical force components during push/pull exertions. The objective of this work was to quantify and statistically model actual hand forces in two-hand, standing exertions relative to the required nominal horizontal and vertical hand forces for a population of widely varying stature and strength. A total of 19 participants exerted force on a fixed handle while receiving visual feedback on the magnitude of force exerted in the required horizontal or vertical direction. A set of regression equations with adjusted R(2) values ranging from 0.20 to 0.66 were developed to define actual hand force vectors by predicting off-axis forces from the required hand force magnitude. Off-axis forces significantly increase the overall magnitude of force exerted in two-hand push/pull and up/down standing force exertions. STATEMENT OF RELEVANCE: This study quantifies and statistically models actual hand forces in two-hand, standing exertions. Inaccuracies in hand force estimates affect the ability to accurately assess task-oriented strength capability. Knowledge of the relationship between nominal and actual hand forces can be used to improve existing ergonomic analysis tools, including biomechanical simulations of manual tasks.

  14. Knowledge work and work-related stress

    DEFF Research Database (Denmark)

    Ipsen, Christine

    2006-01-01

    Work-related stress is an increasing problem in Europe. Earlier studies have stated that knowledge-work comprises working conditions which reflect a good psychosocial environment. Recent Danish studies, however, point at stress being an increasing problem in knowledge-intensive companies...... as good and stimulating, but has on the other hand sides to it which can cause frustration and stress. The implication of organisational characteristics of the knowledge-intensive companies studied is a transfer of the responsibility for ones own working-life. Consequently, issues are dealt...... with informally, individu-ally and incidentally. It is only when problems exist that enhanced support is offered in order to help an employee to cope or recover. As most workplace initiatives work at this tertiary level, the sources of work-related and organiza-tional stress are not reduced or eliminated...

  15. Natural-pose hand detection in low-resolution images

    Directory of Open Access Journals (Sweden)

    Nyan Bo Bo1

    2009-07-01

    Full Text Available Robust real-time hand detection and tracking in video sequences would enable many applications in areas as diverse ashuman-computer interaction, robotics, security and surveillance, and sign language-based systems. In this paper, we introducea new approach for detecting human hands that works on single, cluttered, low-resolution images. Our prototype system, whichis primarily intended for security applications in which the images are noisy and low-resolution, is able to detect hands as smallas 2424 pixels in cluttered scenes. The system uses grayscale appearance information to classify image sub-windows as eithercontaining or not containing a human hand very rapidly at the cost of a high false positive rate. To improve on the false positiverate of the main classifier without affecting its detection rate, we introduce a post-processor system that utilizes the geometricproperties of skin color blobs. When we test our detector on a test image set containing 106 hands, 92 of those hands aredetected (86.8% detection rate, with an average false positive rate of 1.19 false positive detections per image. The rapiddetection speed, the high detection rate of 86.8%, and the low false positive rate together ensure that our system is useable asthe main detector in a diverse variety of applications requiring robust hand detection and tracking in low-resolution, clutteredscenes.

  16. Healthcare Workers’ Hand Microbiome May Mediate Carriage of Hospital Pathogens

    Directory of Open Access Journals (Sweden)

    Mariana Rosenthal

    2013-12-01

    Full Text Available One function of skin microbiota is to resist colonization and infection by external microorganisms. We sought to detect whether the structure of the hand microbiota of 34 healthcare workers (HCW in a surgical intensive care unit mediates or modifies the relationship between demographic and behavioral factors and potential pathogen carriage on hands after accounting for pathogen exposure. We used a taxonomic screen (16S rRNA to characterize the bacterial community, and qPCR to detect presence of Staphylococcus aureus, Enterococcus spp., methicillin-resistant Staphylococcus aureus (MRSA, and Candida albicans on their dominant hands. Hands were sampled weekly over a 3-week period. Age, hand hygiene, and work shift were significantly associated with potential pathogen carriage and the associations were pathogen dependent. Additionally, the overall hand microbiota structure was associated with the carriage of potential pathogens. Hand microbiota community structure may act as a biomarker of pathogen carriage, and modifying that structure may potentially limit pathogen carriage among HCW.

  17. 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

  18. 29 CFR 1917.51 - Hand tools.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Hand tools. 1917.51 Section 1917.51 Labor Regulations...) MARINE TERMINALS Cargo Handling Gear and Equipment § 1917.51 Hand tools. (a) Hand tools used by employees shall be maintained in safe operating condition. (b)(1) Hand-held portable electric tools shall...

  19. 29 CFR 1926.301 - Hand tools.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 8 2010-07-01 2010-07-01 false Hand tools. 1926.301 Section 1926.301 Labor Regulations...) SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION Tools-Hand and Power § 1926.301 Hand tools. (a) Employers shall not issue or permit the use of unsafe hand tools. (b) Wrenches, including adjustable, pipe,...

  20. Does "grief work" work?

    NARCIS (Netherlands)

    Stroebe, M; Stroebe, W

    1991-01-01

    This article challenges the long-standing belief in the necessity of "grief work" for adjustment to bereavement. Evidence is offered from a prospective study of 30 widows and 30 widowers that indicates that grief work is not always as essential for adjustment to bereavement as theorists and clinicia

  1. The Ambiguity of Work

    DEFF Research Database (Denmark)

    Humle, Didde Maria

    2014-01-01

    drawing on the results of an ethnographic case study of a consultancy house; more specifically, it comprises an exploration of the narrative identity work of consultants as they perform work practice stories of self, work, and the organization negotiating why the work they do is both challenging...... contributes by showing that some of the elements perceived to make the work meaningful and rewarding are the same ones also described as potentially demanding and challenging. Furthermore, the article contributes by arguing that studying work practice stories as (ante)narrative identity work provides a rich......This article contributes to the current debate among organizational and work-life researchers on the double-sided nature of knowledge work, which offers great freedom and satisfaction on the one hand and the potential to be overly demanding and stressful on the other. This contribution involves...

  2. Ergonomic Evaluation of Biomechanical Hand Function

    Directory of Open Access Journals (Sweden)

    Kyung-Sun Lee

    2015-03-01

    Full Text Available The human hand is a complex structure that performs various functions for activities of daily living and occupations. This paper presents a literature review on the methodologies used to evaluate hand functions from a biomechanics standpoint, including anthropometry, kinematics, kinetics, and electromyography (EMG. Anthropometry describes the dimensions and measurements of the hand. Kinematics includes hand movements and the range of motion of finger joints. Kinetics includes hand models for tendon and joint force analysis. EMG is used on hand muscles associated with hand functions and with signal-processing technology.

  3. [My hands hurt so much!].

    Science.gov (United States)

    Rüst, Christoph A; Rosemann, Thomas; Knechtle, Beat

    2014-11-26

    We present the case of a 48-year-old man complaining of pain in his hands. In a first step, a two-sided carpal tunnel syndrome was found, and in the further course of the disease an acromegaly. The combinations of carpal tunnel syndrome, impaired glucose tolerance and radiological findings in the area of the sella turcica were the clues for the diagnosis of acromegaly.

  4. Traumatic hand amputation while wakeboarding

    Science.gov (United States)

    Woodacre, Timothy; Marshall, Morwena

    2011-01-01

    Wakeboarding is a sport increasing in popularity in the UK and the rest of the world. It is known to be associated with a high incidence of relatively minor injuries to the participating sportsperson. The authors present the case of a traumatic hand amputation to an associated third party and highlight the potential for serious injuries to all those directly involved with the sport. The authors demonstrate the successful application of military principles to a traumatic amputation in a civilian setting. PMID:22693318

  5. 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.

  6. 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.

  7. 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.

  8. Hand eczema, atopic dermatitis and filaggrin mutations in adult Danes

    DEFF Research Database (Denmark)

    Heede, Nina G; Thuesen, Betina H; Thyssen, Jacob P

    2017-01-01

    BACKGROUND: Atopic dermatitis and hand eczema often impair the ability of people to work. Only a few studies have investigated whether individuals with loss-of-function filaggrin gene (FLG) mutations, who often have severe and early onset of dermatitis, experience occupational consequences....... OBJECTIVE: To investigate the personal consequences of having atopic dermatitis and/or hand eczema and FLG mutations. METHOD: Adult Danes from the general population (n = 3247) and patients with atopic dermatitis and/or hand eczema (n = 496) were genotyped for common FLG mutations, and completed...... in the general population, especially among individuals with a history of atopic dermatitis. Moreover, self-reported hand eczema and atopic dermatitis were associated with particularly high risk of disability pension among FLG mutation carriers [odds ratio (OR) 4.02 and 95% confidence interval (CI): 1...

  9. Hand posture recognizer based on separator wavelet networks

    Science.gov (United States)

    Bouchrika, Tahani; Jemai, Olfa; Zaied, Mourad; Ben Amar, Chokri

    2015-12-01

    This paper presents a novel hand posture recognizer based on separator wavelet networks (SWNs). Aiming at creating a robust and rapid hand posture recognizer, we have contributed by proposing a new training algorithm for the wavelet network classifier based on fast wavelet transform (FWN). So, the contribution resides in reducing the number of WNs modeling training data. To make that, inspiring from the adaboost feature selection method, we thought to create SWNs (n-1 WNs for n classes) instead of modeling each training sample by its wavelet network (WN). By proposing the new training algorithm, the recognition phase will be positively influenced. It will be more rapid thanks to the reduction of the number of comparisons between test images WNs and training WNs. Comparisons with other works, employing universal hand posture datasets are presented and discussed. Obtained results have shown that the new hand posture recognizer is comparable to previously established ones.

  10. Simultaneous Hand-Eye-Workspace and Camera Calibration using Laser Beam Projection

    OpenAIRE

    Jwu-Sheng Hu; Yung-Jung Chang

    2014-01-01

    This work presents a novel calibration technique capable of simultaneously calibrating a camera’s intrinsic parameters and hand-eye-workspace relations. In addition to relaxing the requirement of a precise calibration reference to achieve manipulator accuracy, the proposed method functions when the hand is not in the view field of the eye. The calibration method uses a laser pointer mounted on the hand to project laser beams onto a planar object, which serves as the working plane. Collected l...

  11. Ergonomic Evaluation of Biomechanical Hand Function

    OpenAIRE

    Lee, Kyung-Sun; Jung, Myung-Chul

    2014-01-01

    The human hand is a complex structure that performs various functions for activities of daily living and occupations. This paper presents a literature review on the methodologies used to evaluate hand functions from a biomechanics standpoint, including anthropometry, kinematics, kinetics, and electromyography (EMG). Anthropometry describes the dimensions and measurements of the hand. Kinematics includes hand movements and the range of motion of finger joints. Kinetics includes hand models for...

  12. Work teams and psychosocial risks and work stress

    NARCIS (Netherlands)

    Oeij, P.; Kraan, K.O.; Dhondt, S.

    2014-01-01

    Teamworking is a ‘double-edged sword’. On the one hand, teamworking has been recognised as a way of reducing work-related stress work-related stress by enhancing employees’ job autonomy. Conversely, there is a risk that teamworking could increase employee stress levels by enhancing work pressure. Th

  13. Work teams and psychosocial risks and work stress

    NARCIS (Netherlands)

    Oeij, P.; Kraan, K.O.; Dhondt, S.

    2014-01-01

    Teamworking is a ‘double-edged sword’. On the one hand, teamworking has been recognised as a way of reducing work-related stress work-related stress by enhancing employees’ job autonomy. Conversely, there is a risk that teamworking could increase employee stress levels by enhancing work pressure.

  14. Work teams and psychosocial risks and work stress

    NARCIS (Netherlands)

    Oeij, P.; Kraan, K.O.; Dhondt, S.

    2014-01-01

    Teamworking is a ‘double-edged sword’. On the one hand, teamworking has been recognised as a way of reducing work-related stress work-related stress by enhancing employees’ job autonomy. Conversely, there is a risk that teamworking could increase employee stress levels by enhancing work pressure. Th

  15. On the other hand: Increased cortical activation to human versus mechanical hands in infants.

    Science.gov (United States)

    Biondi, Marisa; Boas, David A; Wilcox, Teresa

    2016-11-01

    There is a large body of work demonstrating that infants are sensitive to the distinction between human and mechanical entities from the early months of life, and have different expectations for the way these entities move and interact. The current work investigates the extent to which the functional organization of the immature brain reflects these early emerging sensitivities. Infants aged 8months watched two kinds of hands (human or mechanical) engage in two kinds of events (one with a functional outcome and one without). Using functional near-infrared spectroscopy (fNIRS), we assessed hemodynamic activation in the left and right temporal and temporal-occipital cortex in response to these events. The neuroimaging data revealed a significantly greater increase in activation in the right middle-posterior temporal cortex to events executed by the human than the mechanical hand; the event in which the hand engaged (function or non-function) did not significantly influence hemodynamic responses. In comparison, the left middle-temporal cortex showed significantly greater activation to events executed by the human than mechanical hand, but only when the events were functionally relevant. That is, the left middle-posterior temporal cortex responded selectively to human (as compared to mechanical) agents, but only in the context of functionally relevant actions on objects. These results reveal that the immature brain is functionally specialized to support infants' processing of human and non-human agents as distinct entities. These results also shed light on the cognitive and cortical mechanisms that guide infants' learning about agentive action and object function.

  16. Hand-arm vibration exposure monitoring with wearable sensor module.

    Science.gov (United States)

    Austad, Hanne O; Røed, Morten H; Liverud, Anders E; Dalgard, Steffen; Seeberg, Trine M

    2013-01-01

    Vibration exposure is a serious risk within work physiology for several work groups. Combined with cold artic climate, the risk for permanent harm is even higher. Equipment that can monitor the vibration exposure and warn the user when at risk will provide a safer work environment for these work groups. This study evaluates whether data from a wearable wireless multi-parameter sensor module can be used to estimate vibration exposure and exposure time. This work has been focused on the characterization of the response from the accelerometer in the sensor module and the optimal location of the module in the hand-arm configuration.

  17. Digital imaging for the education of proper surgical hand disinfection.

    Science.gov (United States)

    Haidegger, Tamás; Nagy, Melinda; Lehotsky, Akos; Szilágyi, László

    2011-01-01

    Nosocomial infections are the undesirable result of a treatment in a hospital, or a health care service unit, not related to the patient's original condition. Despite the evolution of medicine, fundamental problems with hand hygiene remain existent, leading to the spread of nosocomial infections. Our group has been working on a generic solution to provide a method and apparatus to teach and verify proper hand disinfection. The general idea is to mark the skin surfaces that were sufficiently treated with alcoholic hand rub. Digital image processing is employed to determine the location of these areas and overlay it on the segmented hand, visualizing the results in an intuitive form. A non-disruptive ultraviolet marker is mixed to a commercially available hand rub, therefore leaving the original hand washing workflow intact. Digital images are taken in an enclosed device we developed for this purpose. First, robust hand contour segmentation is performed, then a histogram-based formulation of the fuzzy c-means algorithm is employed for the classification of clean versus dirty regions, minimizing the processing time of the images. The method and device have been tested in 3 hospitals in Hungary, Romania and Singapore, on surgeons, residents, medical students and nurses. A health care professional verified the results of the segmentation, since no gold standard is available for the recorded human cases. We were able to identify the hand boundaries correctly in 99.2% of the cases. The device can give objective feedback to medical students and staff to develop and maintain proper hand disinfection practice.

  18. Maltravieso. A hands sanctuary in Extremadura

    Directory of Open Access Journals (Sweden)

    Ripoll López, Sergio

    1999-12-01

    Full Text Available The project of investigation carried out in the cave of Maltravieso has not only yielded a notable increase in the inventory of artistic depictions -hands, zoomorphs and ideomorphs- that are known in the cave, but has also produced some new information with regard to the chronological framework of the production of the various depictions, their phases'of execution, the techniques used in creating the figures, and the typology of the motifs. Another important contribution of our work has been the observation that mutilations of these hands do not exist. The supposed amputations, which have been commented on widely in the traditional literature, are nothing of the kind-they are simply an obscuring of the little finger, with the same pigment as was used to make the hand stencil.

    El proyecto de investigación llevado a cabo en la cueva de Maltravieso, no sólo ha supuesto un notable incremento en el inventario de representaciones artísticas -manos, zoomorfos e ideomorfos- conocidos en la cueva de Maltravieso, sino que aporta importantes novedades, respecto al momento cronológico de realización de las distintas manifestaciones, fases de ejecución, técnica empleada en la elaboración de las figuras y tipología de los motivos. Otra novedad importante derivada de nuestra investigación, ha sido la constatación de la inexistencia de mutilaciones en las manos. Estas amputaciones, tan largamente comentadas por la bibliografía tradicional, no son tales, sino simples ocultaciones intencionales del dedo meñique con el mismo pigmento empleado para plasmar la mano en negativo.

  19. Fungal infections in corn picker hand injury

    Directory of Open Access Journals (Sweden)

    Obradović-Tomašev Milana

    2016-01-01

    Full Text Available Introduction. Hand injuries caused by corn pickers are relatively rare but in most cases extensive, with massive tissue destruction. Severe wounds sustained during agricultural work are contaminated, with high incidence of infection. Objective. The aim of the study was to determine the frequency and type of fungal infection in corn picker injuries and their impact on the course and outcome of treatment. Methods. Corn picker hand injuries for the period 2006-2012 were analyzed. After setting up clinical suspicion, direct examination of repeated swabs and histopathological analysis of biopsy material were done in order to detect fungi. Results. From the total number of 60 patients, there was a fungal infection in nine of them (which makes 15% of the total number of patients. Aspergillus spp. was isolated in seven patients, Candida spp. in three, and Mucor spp. in one patient. None of the patients had increased risk factors for developing a fungal infection. In most cases, there was loss of graft and tissue necrosis in previously normally looking wound, after seven or more days. All patients were treated with repeated surgical debridement and concomitant parenteral and topical application of appropriate antifungal agents. There was no need for reamputation in any patient. Conclusion. A high degree of suspicion and a multidisciplinary approach are needed for early diagnosis of fungal infection. Confirmation of diagnosis and the initiation of surgical and appropriate antifungal therapy are essential for a successful outcome.

  20. [Hand, foot and mouth disease].

    Science.gov (United States)

    Barriere, H; Berger, M; Billaudel, S

    1976-11-16

    Two characteristic cases encountered in young adults led the authors to present the hand foot and mouth syndrome. They report the characteristic distribution and vesicular appearance of the lesions. The course was benign. The viral origin of the disease was more or less easily confirmed by cell culture, inoculation in new born mice and demonstration of antibodies. Usually the virus was a Coxackie A 16. However in one of the authors cases, an Echo 11 was demonstrated. The apparent rareness of the disease may be explained by lack of recognition.

  1. 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

  2. Flavor physics and right-handed models

    Energy Technology Data Exchange (ETDEWEB)

    Shafaq, Saba

    2010-08-20

    The Standard Model of particle physics only provides a parametrization of flavor which involves the values of the quark and lepton masses and unitary flavor mixing matrix i.e. CKM (Cabibbo-Kobayashi-Masakawa) matrix for quarks. The precise determination of elements of the CKM matrix is important for the study of the flavor sector of quarks. Here we concentrate on the matrix element vertical stroke V{sub cb} vertical stroke. In particular we consider the effects on the value of vertical stroke V{sub cb} vertical stroke from possible right-handed admixtures along with the usually left-handed weak currents. Left Right Symmetric Model provide a natural basis for right-handed current contributions and has been studied extensively in the literature but has never been discussed including flavor. In the first part of the present work an additional flavor symmetry is included in LRSM which allows a systematic study of flavor effects. The second part deals with the practical extraction of a possible right-handed contribution. Starting from the quark level transition b{yields}c we use heavy quark symmetries to relate the helicities of the quarks to experimentally accessible quantities. To this end we study the decays anti B{yields}D(D{sup *})l anti {nu} which have been extensively explored close to non recoil point. By taking into account SCET (Soft Collinear Effective Theory) formalism it has been extended to a maximum recoil point i.e. {upsilon} . {upsilon}{sup '} >>1. We derive a factorization formula, where the set of form factors is reduced to a single universal form factor {xi}({upsilon} . {upsilon}{sup '}) up to hard-scattering corrections. Symmetry relations on form factors for exclusive anti B {yields} D(D{sup *})l anti {nu} transition has been derived in terms of {xi}({upsilon} . {upsilon}{sup '}). These symmetries are then broken by perturbative effects. The perturbative corrections to symmetry-breaking corrections to first order in the strong

  3. Physical Therapy--Hands-on Education, Hands-on Healing

    Science.gov (United States)

    Reese, Susan

    2004-01-01

    Physical therapists and physical therapist assistants are working to improve the quality of life for those with health problems--and career and technical education is working to improve the quality of their training. Training to become a physical therapist requires both an academic and a clinical education with courses in psychology, biology,…

  4. FORCE OPTIMIZATION OF GRASPING BY ROBOTIC HANDS

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    It is important for robotic hands to obtain optimal grasping performance in the meanwhile balancing external forces and maintaining grasp stability.The problem of force optimization of grasping is solved in the space of joint torques.A measure of grasping performance is presented to protect joint actuators from working in heavy payloads.The joint torques are calculated for the optimal performance under the frictional constraints and the physical limits of motor outputs.By formulating the grasping forces into the explicit function of joint torques, the frictional constraints imposed on the grasping forces are transformed into the constraints on joint torques.Without further simplification, the nonlinear frictional constraints can be simply handled in the process of optimization.Two numerical examples demonstrate the simplicity and effectiveness of the approach.

  5. Hand-held microwave search detector

    Science.gov (United States)

    Daniels, David J.; Philippakis, Mike

    2005-05-01

    This paper describes the further development of a patented, novel, low cost, microwave search detector using noise radar technology operating in the 27-40GHz range of frequencies, initially reported in SPIE 2004. Initial experiments have shown that plastic explosives, ceramics and plastic material hidden on the body can be detected with the system. This paper considers the basic physics of the technique and reports on the development of a initial prototype system for hand search of suspects and addresses the work carried out on optimisation of PD and FAR. The radar uses a novel lens system and the design and modelling of this for optimum depth of field of focus will be reported.

  6. 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.

  7. "Country Life"? Rurality, Folk Music and "Show of Hands"

    Science.gov (United States)

    Yarwood, Richard; Charlton, Clive

    2009-01-01

    This paper examines the contribution of folk music to understanding the dynamic, fluid and multi-experiential nature of the countryside. Drawing from literature on the geographies of music, it examines the work of "Show of Hands", a contemporary folk band from Devon in England. Three areas are studied. First, the paper examines the…

  8. CORD Applied Mathematics: Hands-On Learning in Context.

    Science.gov (United States)

    Pedrotti, Leon S.; Chamberlain, John D.

    1995-01-01

    The Center for Occupational Research and Development (CORD) developed an applied mathematics course that integrates algebra, geometry, trigonometry, and other strands; centers around hands-on laboratory experiences; and uses real-world problems found in the world of work. (MKR)

  9. Mind your hand during the energy crunch: Functional Outcome of Circular Saw Hand Injuries

    Directory of Open Access Journals (Sweden)

    Frank Matthias

    2010-09-01

    Full Text Available Abstract Background Although injuries due to circular saws are very common all over the world, there is surprisingly little information available about their functional outcomes. As the socioeconomic impact of these injuries is immense and determined by the casualties' disability and impairment, it is the objective of this study to present data on the functional outcome, disability, and impairment of hand injuries due to electric circular saws. Methods Patients treated from 1999 through 2007 for circular saw-related hand injuries were contacted and asked for clinical follow-up assessment. The clinical follow-up protocol consisted of a physical examination and an assessment of static muscle power (grip and pinch strength. For assessment of the subjective experience of the patients regarding their injury-related disability and impairment, the DASH follow-up questionnaire was used. The occupational impact of these injuries was measured by number of lost working days. Finally, safety-related behaviour of the patients was investigated. Results 114 Patients were followed-up on average 52 months after the injury. Average in-house treatment was 8.8 days. Average time lost from work was 14.8 weeks. A significant reduction of static muscle testing parameters compared with the uninjured hand was revealed for grip strength, tip pinch, key pinch, and palmar pinch. Average DASH score was 17.4 (DASH work 15.8, DASH sports/music 17.7. Most patients had more than ten years experience in using these power tools. Conclusion The everyday occurrence of circular saw-related hand injuries followed by relatively short periods of in-house treatment might distort the real dimension of the patients' remaining disability and impairment. While the trauma surgeon's view is generally confined to the patients' clinical course, the outcome parameters in this follow-up investigation, with loss of working time as the key factor, confirm that the whole socioeconomic burden is much

  10. Viability of Controlling Prosthetic Hand Utilizing Electroencephalograph (EEG) Dataset Signal

    Science.gov (United States)

    Miskon, Azizi; A/L Thanakodi, Suresh; Raihan Mazlan, Mohd; Mohd Haziq Azhar, Satria; Nooraya Mohd Tawil, Siti

    2016-11-01

    This project presents the development of an artificial hand controlled by Electroencephalograph (EEG) signal datasets for the prosthetic application. The EEG signal datasets were used as to improvise the way to control the prosthetic hand compared to the Electromyograph (EMG). The EMG has disadvantages to a person, who has not used the muscle for a long time and also to person with degenerative issues due to age factor. Thus, the EEG datasets found to be an alternative for EMG. The datasets used in this work were taken from Brain Computer Interface (BCI) Project. The datasets were already classified for open, close and combined movement operations. It served the purpose as an input to control the prosthetic hand by using an Interface system between Microsoft Visual Studio and Arduino. The obtained results reveal the prosthetic hand to be more efficient and faster in response to the EEG datasets with an additional LiPo (Lithium Polymer) battery attached to the prosthetic. Some limitations were also identified in terms of the hand movements, weight of the prosthetic, and the suggestions to improve were concluded in this paper. Overall, the objective of this paper were achieved when the prosthetic hand found to be feasible in operation utilizing the EEG datasets.

  11. The Will to Touch: David Copperfield’s Hand

    Directory of Open Access Journals (Sweden)

    Pamela K. Gilbert

    2014-10-01

    Full Text Available In the nineteenth century, touch was considered to be a more privileged sense than has been generally noted, and the hand was pre-eminently the site of active touching. The hand comes newly to rival the face in descriptive significance in mid-nineteenth-century fiction, and reflects contemporary notions of the role of touch in the exercise of the will and the development of the sensorium. This article explores medical and philosophical understandings of embodied touch within the period, and examines why the hand emerged as a focal point for scientific, poetic, and popular discussion. Such scientists as Charles Bell, Herbert Spencer, and Alexander Bain tend to work within two paradigms: the hand as a site of sensory input that forms a conduit between inner and outer worlds, and the hand as an instrument of the will. The article explores Dickens's use of these ideas about touch and development in his 1850 'Bildungsroman', 'David Copperfield'. David struggles to establish his proper status as a middle-class male, in part by learning to use his hands to impose his own will and to resist the dominance of inappropriate others through touch.

  12. Multiscale Convolutional Neural Networks for Hand Detection

    Directory of Open Access Journals (Sweden)

    Shiyang Yan

    2017-01-01

    Full Text Available Unconstrained hand detection in still images plays an important role in many hand-related vision problems, for example, hand tracking, gesture analysis, human action recognition and human-machine interaction, and sign language recognition. Although hand detection has been extensively studied for decades, it is still a challenging task with many problems to be tackled. The contributing factors for this complexity include heavy occlusion, low resolution, varying illumination conditions, different hand gestures, and the complex interactions between hands and objects or other hands. In this paper, we propose a multiscale deep learning model for unconstrained hand detection in still images. Deep learning models, and deep convolutional neural networks (CNNs in particular, have achieved state-of-the-art performances in many vision benchmarks. Developed from the region-based CNN (R-CNN model, we propose a hand detection scheme based on candidate regions generated by a generic region proposal algorithm, followed by multiscale information fusion from the popular VGG16 model. Two benchmark datasets were applied to validate the proposed method, namely, the Oxford Hand Detection Dataset and the VIVA Hand Detection Challenge. We achieved state-of-the-art results on the Oxford Hand Detection Dataset and had satisfactory performance in the VIVA Hand Detection Challenge.

  13. Curiosity's Mars Hand Lens Imager (MAHLI) Investigation

    Science.gov (United States)

    Edgett, Kenneth S.; Yingst, R. Aileen; Ravine, Michael A.; Caplinger, Michael A.; Maki, Justin N.; Ghaemi, F. Tony; Schaffner, Jacob A.; Bell, James F.; Edwards, Laurence J.; Herkenhoff, Kenneth E.; Heydari, Ezat; Kah, Linda C.; Lemmon, Mark T.; Minitti, Michelle E.; Olson, Timothy S.; Parker, Timothy J.; Rowland, Scott K.; Schieber, Juergen; Sullivan, Robert J.; Sumner, Dawn Y.; Thomas, Peter C.; Jensen, Elsa H.; Simmonds, John J.; Sengstacken, Aaron J.; Willson, Reg G.; Goetz, Walter

    2012-09-01

    The Mars Science Laboratory (MSL) Mars Hand Lens Imager (MAHLI) investigation will use a 2-megapixel color camera with a focusable macro lens aboard the rover, Curiosity, to investigate the stratigraphy and grain-scale texture, structure, mineralogy, and morphology of geologic materials in northwestern Gale crater. Of particular interest is the stratigraphic record of a ˜5 km thick layered rock sequence exposed on the slopes of Aeolis Mons (also known as Mount Sharp). The instrument consists of three parts, a camera head mounted on the turret at the end of a robotic arm, an electronics and data storage assembly located inside the rover body, and a calibration target mounted on the robotic arm shoulder azimuth actuator housing. MAHLI can acquire in-focus images at working distances from ˜2.1 cm to infinity. At the minimum working distance, image pixel scale is ˜14 μm per pixel and very coarse silt grains can be resolved. At the working distance of the Mars Exploration Rover Microscopic Imager cameras aboard Spirit and Opportunity, MAHLI's resolution is comparable at ˜30 μm per pixel. Onboard capabilities include autofocus, auto-exposure, sub-framing, video imaging, Bayer pattern color interpolation, lossy and lossless compression, focus merging of up to 8 focus stack images, white light and longwave ultraviolet (365 nm) illumination of nearby subjects, and 8 gigabytes of non-volatile memory data storage.

  14. Curiosity's Mars Hand Lens Imager (MAHLI) Investigation

    Science.gov (United States)

    Edgett, Kenneth S.; Yingst, R. Aileen; Ravine, Michael A.; Caplinger, Michael A.; Maki, Justin N.; Ghaemi, F. Tony; Schaffner, Jacob A.; Bell, James F.; Edwards, Laurence J.; Herkenhoff, Kenneth E.; Heydari, Ezat; Kah, Linda C.; Lemmon, Mark T.; Minitti, Michelle E.; Olson, Timothy S.; Parker, Timothy J.; Rowland, Scott K.; Schieber, Juergen; Sullivan, Robert J.; Sumner, Dawn Y.; Thomas, Peter C.; Jensen, Elsa H.; Simmonds, John J.; Sengstacken, Aaron J.; Wilson, Reg G.; Goetz, Walter

    2012-01-01

    The Mars Science Laboratory (MSL) Mars Hand Lens Imager (MAHLI) investigation will use a 2-megapixel color camera with a focusable macro lens aboard the rover, Curiosity, to investigate the stratigraphy and grain-scale texture, structure, mineralogy, and morphology of geologic materials in northwestern Gale crater. Of particular interest is the stratigraphic record of a ?5 km thick layered rock sequence exposed on the slopes of Aeolis Mons (also known as Mount Sharp). The instrument consists of three parts, a camera head mounted on the turret at the end of a robotic arm, an electronics and data storage assembly located inside the rover body, and a calibration target mounted on the robotic arm shoulder azimuth actuator housing. MAHLI can acquire in-focus images at working distances from ?2.1 cm to infinity. At the minimum working distance, image pixel scale is ?14 μm per pixel and very coarse silt grains can be resolved. At the working distance of the Mars Exploration Rover Microscopic Imager cameras aboard Spirit and Opportunity, MAHLI?s resolution is comparable at ?30 μm per pixel. Onboard capabilities include autofocus, auto-exposure, sub-framing, video imaging, Bayer pattern color interpolation, lossy and lossless compression, focus merging of up to 8 focus stack images, white light and longwave ultraviolet (365 nm) illumination of nearby subjects, and 8 gigabytes of non-volatile memory data storage.

  15. Taylorism given a helping hand

    DEFF Research Database (Denmark)

    Tolsby, June

    2000-01-01

    Illustrates how th implementation of a major information technology (IT) system within the Norwegian Army affected the way the employees perceived their flexibility and personal involvement in their work. By employing Taylor's initial works, this paper illustrates how the introduction of the IT s......Illustrates how th implementation of a major information technology (IT) system within the Norwegian Army affected the way the employees perceived their flexibility and personal involvement in their work. By employing Taylor's initial works, this paper illustrates how the introduction...

  16. The Ambiguity of Work

    DEFF Research Database (Denmark)

    Humle, Didde Maria

    2014-01-01

    This article contributes to the current debate among organizational and work-life researchers on the double-sided nature of knowledge work, which offers great freedom and satisfaction on the one hand and the potential to be overly demanding and stressful on the other. This contribution involves...... drawing on the results of an ethnographic case study of a consultancy house; more specifically, it comprises an exploration of the narrative identity work of consultants as they perform work practice stories of self, work, and the organization negotiating why the work they do is both challenging...... and rewarding. The type of knowledge work explored is characterized by its immaterial nature in the sense that the primary input is the competences, knowledge, and commitment of the consultants and the output is the joy, success, and satisfaction of candidates, clients, and collaborators. The article...

  17. The Ambiguity of work

    DEFF Research Database (Denmark)

    Humle, Didde Maria

    2014-01-01

    This article contributes to the current debate among organizational and work-life researchers on the double-sided nature of knowledge work, which offers great freedom and satisfaction on the one hand and the potential to be overly demanding and stressful on the other. This contribution involves...... drawing on the results of an ethnographic case study of a consultancy house; more spe- cifically, it comprises an exploration of the narrative identity work of consultants as they perform work practice stories of self, work, and the organization negotiating why the work they do is both challenging...... and rewarding. The type of knowledge work explored is characterized by its immaterial nature in the sense that the primary input is the competences, knowledge, and commitment of the consultants and the output is the joy, success, and satisfaction of candidates, clients, and collaborators. The article...

  18. Postoperative hand therapy in Dupuytren's disease

    NARCIS (Netherlands)

    Herweijer, H.; Dijkstra, P.U.; Nicolai, J.P.A.; van der Sluis, C.K.

    2007-01-01

    Background. Postoperative hand therapy in patients after surgery for Dupuytren's contracture is common medical practice to improve outcomes. Until now, patients are referred for postoperative hand rehabilitation on an empirical basis. Purpose. To evaluate whether referral criteria after surgery

  19. Postoperative hand therapy in Dupuytren's disease

    NARCIS (Netherlands)

    Herweijer, H.; Dijkstra, P.U.; Nicolai, J.P.A.; van der Sluis, C.K.

    2007-01-01

    Background. Postoperative hand therapy in patients after surgery for Dupuytren's contracture is common medical practice to improve outcomes. Until now, patients are referred for postoperative hand rehabilitation on an empirical basis. Purpose. To evaluate whether referral criteria after surgery beca

  20. Two Left Hands, Ten Interlaced Fingers: A New Rubber Hand Illusion.

    Science.gov (United States)

    White, Rebekah C; Bowen, Dillon; Dumbalska, Tsvetomira; Hoeger, Katharine; Mok, Anastasia Y S

    2016-03-01

    A variation on the rubber hand paradigm elicits an illusion in which the participant's sense of body ownership can switch back and forth between two viewed prosthetic hands. The interlaced fingers paradigm involves three prosthetic left hands: Two are positioned in full view of the participant, with their fingers interlaced, and the fingers of a third prosthetic hand are interlaced with the fingers of the participant's left hand, which is hidden from view. The examiner alternates brushstrokes to the two viewed prosthetic hands, while administering synchronous brushstrokes to the participant's hidden hand. Most participants experience ownership for the prosthetic hand that is being stroked at a given moment.

  1. Hand Shape Affects Access to Memories

    NARCIS (Netherlands)

    K. Dijkstra (Katinka); M.P. Kaschak; R.A. Zwaan (Rolf)

    2008-01-01

    textabstractThe present study examined the ways that body posture facilitated retrieval of autobiographical memories in more detail by focusing on two aspects of congruence in position of a specific body part: hand shape and hand orientation. Hand shape is important in the tactile perception and man

  2. Towards a classification of weak hand holds

    NARCIS (Netherlands)

    Kimmelman, V.; Sáfár, A.; Crasborn, O.

    2016-01-01

    The two symmetrical manual articulators (the hands) in signed languages are a striking modalityspecific phonetic property. The weak hand can maintain the end position of an articulation while the other articulator continues to produce additional signs. This weak hand spreading (hold) has been

  3. A hand-hygiene behaviour monitoring system

    NARCIS (Netherlands)

    Van Schie, M.; Wiesman, R.F.F.

    2008-01-01

    The invention relates to a hand-hygiene behaviour monitoring system, comprising: means for detecting the occurrence of an event specified in a hand-hygiene rule, wherein the event involves a person; means for updating behaviour data that is related to acts according to the hand-hygiene rule, wherein

  4. Hand Shape Affects Access to Memories

    NARCIS (Netherlands)

    K. Dijkstra (Katinka); M.P. Kaschak; R.A. Zwaan (Rolf)

    2008-01-01

    textabstractThe present study examined the ways that body posture facilitated retrieval of autobiographical memories in more detail by focusing on two aspects of congruence in position of a specific body part: hand shape and hand orientation. Hand shape is important in the tactile perception and man

  5. ARE LEFT HANDED SURGEONS LEFT OUT?

    OpenAIRE

    SriKamkshi Kothandaraman; Balasubramanian Thiagarajan

    2012-01-01

    Being a left-handed surgeon, more specifically a left-handed ENT surgeon, presents a unique pattern of difficulties.This article is an overview of left-handedness and a personal account of the specific difficulties a left-handed ENT surgeon faces.

  6. Moving past sleight of hand.

    Science.gov (United States)

    Mintken, Paul E; Derosa, Carl; Little, Tamara; Smith, Britt

    2010-05-01

    Medical care historically has had a strong association with magic, illusion, and secrecy. Although we profess to be modern healthcare practitioners, utilizing manual therapy techniques, and strive for evidence-based practice, the reality is that one of the most ubiquitous of all manual therapy techniques, manipulation, is obscured by illusive and ill-defined terminology. As a first step in moving from magician to modern clinician, we recently proposed a nomenclature intended to standardize and clarify the terminology used in describing specific manual therapy techniques, recommending the use of 6 key characteristics. The persistent obfuscations appear to be aimed at obscuring the differentiation of manipulation from mobilization. The time has come for a more precise delineation between manipulation and mobilization and to move beyond seeing these valuable interventions simply as some sleight-of-hand technique.J Orthop Sports Phys Ther 2010;40(5):253-255. doi:10.2519/jospt.2010.0105.

  7. How effective are hand antiseptics for the postcontamination treatment of hands when used as recommended?

    Science.gov (United States)

    Kampf, Günter

    2008-06-01

    Alcohol-based hand antiseptics are often tested using 3 or 5 mL per application, but smaller volumes are likely to be applied in clinical practice. For that reason, we investigated the efficacy of 2 different volumes of 4 marketed hand rubs when applied to contaminated hands. Hands of 16 volunteers were contaminated with Serratia marcescens. Hand rub A (85% ethanol), hand rub B (60% ethanol), hand rub C (62% ethanol), and hand rub D (61% ethanol) were applied as blinded formulations, each in single applications of 2.4 or 3.6 mL. Hibiclens (4% chlorhexidine gluconate) served as the reference treatment. Each hand rub was rubbed into the hands until dry. Preintervention and postintervention bacterial populations were obtained by the glove juice method. Neutralization of residual activity was validated. A 2.4-mL aliquot of a hand rub product was sufficient to cover both hands in 96.9% of the subjects. Applied in that volume, hand rubs produced a log(10)-reduction in bacterial populations of 2.79 for hand rub A, 2.26 for hand rub C, 1.96 for hand rub D, and 1.90 for hand rub B. Application of 3.6 mL was significantly more effective for hand rubs B, C, and D. The reference treatment reduced test bacteria by 2.39 log(10). Analysis of variance revealed that both the type of hand rub and the applied volume had a highly significant influence on the mean log(10) reduction on artificially contaminated hands (P < .001). Hand rubs applied in amounts sufficient to cover both hands may not reduce the bacterial density by even 2 log(10) steps. Based on our findings, the general trend toward alcohol-based hand rubs should not overlook evidence of significant differences in efficacy that appear to be related primarily to a product's overall concentration of alcohol.

  8. Breath alcohol of anesthesiologists using alcohol hand gel and the "five moments for hand hygiene" in routine practice.

    Science.gov (United States)

    Lindsay, Helen A; Hannam, Jacqueline A; Bradfield, Charles N; Mitchell, Simon J

    2016-08-01

    Appropriate hand hygiene reduces hospital-acquired infections. Anesthesiologists work in environments with numerous hand hygiene opportunities (HHOs). In a prospective observational study, we investigated the potential for an anesthesiologist to return a positive alcohol breath test during routine practice when using alcohol hand gel. We observed ten volunteer anesthesiologists over four hours while they implemented the World Health Organization (WHO) "five moments for hand hygiene" using our hospital's adopted standard 70% ethanol hand gel. We measured the expired alcohol concentration at shift start and every fifteen minutes thereafter with a fuel cell breathalyzer calibrated to measure the percentage of blood alcohol concentration (BAC). Blood alcohol specimens (analyzed with gas chromatography) were collected at shift start and, when possible, immediately after a participant's first positive breathalyzer test. Of the 130 breathalyzer tests obtained, there were eight (6.2%) positive breath alcohol results from six of the ten participants, all within two minutes of a HHO. The highest value breathalyzer BAC recorded was 0.064%, with an overall mean (SD) of 0.023 (0.017)%. Five (62.5%) of the positive breathalyzer tests returned to zero in less than seven minutes. All of three blood specimens obtained immediately after a positive breathalyzer reading tested negative for alcohol. Anesthesia practitioners using alcohol hand gel in a manner that conforms with recommended hand hygiene can test positive for alcohol on a breathalyzer assay. Positive tests probably arose from inhalation of alcohol vapour into the respiratory dead space following gel application. If workplace breath testing for alcohol is implemented, it should be completed more than 15 min after applying alcohol hand gel. Positive results should be verified with a BAC test.

  9. A hybrid adaptive control strategy for a smart prosthetic hand.

    Science.gov (United States)

    Chen, Cheng-Hung; Naidu, D Subbaram; Perez-Gracia, Alba; Schoen, Marco P

    2009-01-01

    This paper presents a hybrid of a soft computing technique of adaptive neuro-fuzzy inference system (ANFIS) and a hard computing technique of adaptive control for a two-dimensional movement of a prosthetic hand with a thumb and index finger. In particular, ANFIS is used for inverse kinematics, and the adaptive control is used for linearized dynamics to minimize tracking error. The simulations of this hybrid controller, when compared with the proportional-integral-derivative (PID) controller showed enhanced performance. Work is in progress to extend this methodology to a five-fingered, three-dimensional prosthetic hand.

  10. Magnetotunable left-handed FeSiB ferromagnetic microwires.

    Science.gov (United States)

    Labrador, Alberto; Gómez-Polo, Cristina; Pérez-Landazábal, José Ignacio; Zablotskii, Vitalii; Ederra, Iñigo; Gonzalo, Ramón; Badini-Confalonieri, Giovanni; Vázquez, Manuel

    2010-07-01

    The magnetotunable left-handed characteristics of Fe(77.5)Si(12.5)B(10) glass-coated ferromagnetic microwires are analyzed in array and single microwire configuration, employing a rectangular waveguide working in X band. While the negative permeability is ascribed to the natural ferromagnetic resonance (NFMR) of the highly and positive magnetostrictive microwire, the negative permittivity features of the medium are attributed to the interaction of the microwires with the metallic rectangular waveguide. The dependence of the NFMR frequency on the applied external magnetic field enables the design of magnetotunable left-handed systems with wide-frequency band.

  11. Taylorism given a helping hand

    DEFF Research Database (Denmark)

    Tolsby, June

    2000-01-01

    Illustrates how th implementation of a major information technology (IT) system within the Norwegian Army affected the way the employees perceived their flexibility and personal involvement in their work. By employing Taylor's initial works, this paper illustrates how the introduction of the IT s......Illustrates how th implementation of a major information technology (IT) system within the Norwegian Army affected the way the employees perceived their flexibility and personal involvement in their work. By employing Taylor's initial works, this paper illustrates how the introduction......' interdependence. Instead of increasing employees' personal flexibility and involvement in their jobs, the research shows how the new IT system in fact contributed to a reduction in the freedom to choose when and how quickly to do their jobs....

  12. Improving hand hygiene after neurological injury.

    Science.gov (United States)

    Duke, Lynsay; Gibbison, Lucy; McMahon, Victoria

    Caring for hands tightened by spasticity after stroke, brain injury or other neurological conditions can be challenging for care staff. Opening and cleaning the hand, managing pressure areas, cutting nails and reducing pain becomes more complex if muscles are tight and short. Hand hygiene is key for staff but literature on patients' hand and nail care is lacking, so specialist education and care planning may be needed to help staff ensure these activities are done well. This article outlines the importance of maintaining patients' hand hygiene, explores the barriers to providing effective care and discusses how they might be overcome.

  13. Gram-negative bacilli as nontransient flora on the hands of hospital personnel.

    Science.gov (United States)

    Guenthner, S H; Hendley, J O; Wenzel, R P

    1987-03-01

    The possibility that gram-negative bacilli (GNB) are part of the nontransient flora on hands was examined by using a broth rinse technique to detect low titers of GNB after a hygienic hand wash with soap and water. A total of 100 nurses who had direct patient contact and 40 controls without patient contact had a similar rate of recovery of GNB (46 and 55%, respectively). GNB persisted on the hands of 10 nurses throughout five successive hand washes with soap and water. Hand cultures were obtained daily from 12 nurses before and after a work shift in a surgical intensive care unit. GNB were recovered from 57% of individuals before patient contact and from only 24% after the work shift. Nontransient GNB on the hands of hospital personnel are a potential reservoir for hospital strains, and patient contact is not an obvious source for the acquisition of nontransient GNB.

  14. Hand decontamination: nurses' opinions and practices.

    Science.gov (United States)

    Gould, D

    Infection is spread in hospital mainly by hands, making hand decontamination the most important means of preventing dissemination. There is some evidence to suggest that when access to hand-decontaminating agents is poor or the agents available are disliked, hands are washed too seldom, increasing risks of cross-infection. However, little attention has been paid to the use of towels and factors which promote their use, although it is known that damp hands transfer bacteria more readily than dry ones and that hands which become sore through poor drying have higher bacterial counts, contributing to the risk of cross-infection. This paper reports the results of the Nursing Times Hand Drying survey designed to assess nurses' access to hand decontamination agents and towels. The results suggest that the 112 nurses who participated were aware of the need for attention to hand hygiene but that access to both hand-decontaminating agents and paper towels was variable. Forty-one per cent complained of a shortage of soap and although nearly all used paper towels, these were in many cases of poor quality. Such towels were perceived as damaging to hands, leaving them feeling damp and sore. Good-quality, soft, paper towels were much appreciated by respondents in this sample. It is concluded that the quality of paper towels contributes to good infection control practice.

  15. Hand gesture recognition based on surface electromyography.

    Science.gov (United States)

    Samadani, Ali-Akbar; Kulic, Dana

    2014-01-01

    Human hands are the most dexterous of human limbs and hand gestures play an important role in non-verbal communication. Underlying electromyograms associated with hand gestures provide a wealth of information based on which varying hand gestures can be recognized. This paper develops an inter-individual hand gesture recognition model based on Hidden Markov models that receives surface electromyography (sEMG) signals as inputs and predicts a corresponding hand gesture. The developed recognition model is tested with a dataset of 10 various hand gestures performed by 25 subjects in a leave-one-subject-out cross validation and an inter-individual recognition rate of 79% was achieved. The promising recognition rate demonstrates the efficacy of the proposed approach for discriminating between gesture-specific sEMG signals and could inform the design of sEMG-controlled prostheses and assistive devices.

  16. Analysis of training experience of military men to hand-to-hand combat in the foreign countries

    Directory of Open Access Journals (Sweden)

    Marakushyn A.I.

    2011-02-01

    Full Text Available It is shown the main systems of hand-to-hand combat on the bases of hand-to-hand military men training in the world leading countries armies. Summarized the experience of hand-to-hand combat training. It is analyzes the main existing systems hand-to-hand training of servicemen of foreign armies. The analysis of publications, guidance documents, manuals, statutes which display the contents of hand-to-hand combat training of servicemen of foreign armies. Defined views, concerns and tendencies of hand-to-hand training to develop guidelines an advanced hand-to-hand combat training of servicemen.

  17. Microfluidic MEMS hand-held flow cytometer

    Science.gov (United States)

    Grafton, Meggie M. G.; Maleki, Teimour; Zordan, Michael D.; Reece, Lisa M.; Byrnes, Ron; Jones, Alan; Todd, Paul; Leary, James F.

    2011-02-01

    Due to a number of recent technological advances, a hand-held flow cytometer can be achieved by use of semiconductor illuminators, optical sensors (all battery powered) and sensitive cell markers such as immuno-quantum dot (Qdot) labels. The specific application described is of a handheld blood analyzer that can quickly process a drop of whole, unfractionated human peripheral blood by real-time, on-chip magnetic separation of white blood cells (WBCs) and red blood cells (RBCs) and further fluorescence analysis of Qdot labeled WBC subsets. Various microfluidic patterns were fabricated in PDMS and used to characterize flow of single cells and magnetic deflection of magnetically labeled cells. An LED excitation, avalanche photodiode detection system (SensL Technologies, Ltd., Cork, Ireland) was used for immuno-Qdot detection of WBC subsets. A static optical setup was used to determine the sensitivity of the detection system. In this work we demonstrate: valve-less, on-chip magnetic sorting of immunomagnetically labeled white blood cells, bright Qdot labeling of lymphocytes, and counting of labeled white blood cells. Comparisons of these results with conventional flow cytometric analyses are reported. Sample preparation efficiency was determined by labeling of isolated white blood cells. Appropriate flow rates were determined for optical detection and confirmed with flowing particles. Several enabling technologies required for a truly portable, battery powered, hand-held flow cytometer for use in future point-of-care diagnostic devices have been demonstrated. The combining of these technologies into an integrated handheld instrument is in progress and results on whole blood cell analysis are to be reported in another paper.

  18. Review of human hand microbiome research.

    Science.gov (United States)

    Edmonds-Wilson, Sarah L; Nurinova, Nilufar I; Zapka, Carrie A; Fierer, Noah; Wilson, Michael

    2015-10-01

    Recent advances have increased our understanding of the human microbiome, including the skin microbiome. Despite the importance of the hands as a vector for infection transmission, there have been no comprehensive reviews of recent advances in hand microbiome research or overviews of the factors that influence the composition of the hand microbiome. A comprehensive and systematic database search was conducted for skin microbiome-related articles published from January 1, 2008 to April 1, 2015. Only primary research articles that used culture-independent, whole community analysis methods to study the healthy hand skin microbiome were included. Eighteen articles were identified containing hand microbiome data. Most focused on bacteria, with relatively little reported on fungi, viruses, and protozoa. Bacteria from four phyla were found across all studies of the hand microbiome (most to least relative abundance): Firmicutes, Actinobacteria, Proteobacteria, Bacteroidetes. Key factors that impacted the hand microbiome composition included temporal and biogeographical dynamics, as well as intrinsic (age, gender) and extrinsic (product use, cohabitants, pet-ownership) variables. There was more temporal variability in the composition of the hand microbiome than in other body sites, making identification of the "normal" microbiome of the hands challenging. The microbiome of the hands is in constant flux as the hands are a critical vector for transmitting microorganisms between people, pets, inanimate objects and our environments. Future studies need to resolve methodological influences on results, and further investigate factors which alter the hand microbiome including the impact of products applied to hands. Increased understanding of the hand microbiome and the skin microbiome in general, will open the door to product development for disease prevention and treatment, and may lead to other applications, including novel diagnostic and forensic approaches.

  19. Dimension Seven Operators in Standard Model with Right handed Neutrinos

    CERN Document Server

    Bhattacharya, Subhaditya

    2015-01-01

    In this article, we evaluate all the dimension seven operators involving Standard Model (SM) fields and SM gauge symmetry including right handed neutrinos. We also indicate those operators potentially tree generated (PTG) and those which will be loop generated (LG), so that we know where to look for new physics (NP) contributions in observable effects. We indicate limits on NP scale from the current data to each of the PTG operators without right handed neutrinos. We also calculate the reach of NP scale from two of the operators which produce same sign dilepton at the upgraded Large Hadron Collider (LHC). Our list seems to be consistent with earlier efforts where operators of same dimension have been worked out without right handed neutrinos.

  20. NOTE ABOUT THE MORALS CONCEIVED IN DIRTY HANDS

    Directory of Open Access Journals (Sweden)

    Humberto Pereira da Silva

    2007-12-01

    Full Text Available Sartre’s philosophy and the existentialism were very important to the thought in the last century. Besides being a philosopher, Sartre was also a great writer and, in his play, Dirty hands, one can see many of his ideas. Tthis paper indicates the moral question, thus, the problem of liberty, presented in this Sartre’s specific work. Tthe matter of Dirty hands, when the characters are inside of the “border-situation”, is the liberty of choice. is the moment of affirmation of liberty, to Sartre. Iin this paper it is not the objective to contest Sartre’s concepts, as the one about “border-situation” or the other about liberty, because the purpose is only to show as Sartre use them in the play Dirty hands.

  1. VeinPLUS: A Transillumination and Reflection-based Hand Vein Database

    OpenAIRE

    Gruschina, Alexander

    2015-01-01

    This paper gives a short summary of work related to the creation of a department-hosted hand vein database. After the introducing section, special properties of the hand vein acquisition are explained, followed by a comparison table, which shows key differences to existing well-known hand vein databases. At the end, the ROI extraction process is described and sample images and ROIs are presented.

  2. The Impact of a Health Campaign on Hand Hygiene and Upper Respiratory Illness among College Students Living in Residence Halls.

    Science.gov (United States)

    White, Cindy; Kolble, Robin; Carlson, Rebecca; Lipson, Natasha

    2005-01-01

    Hand hygiene is a key element in preventing the transmission of cold and flu viruses. The authors conducted an experimental-control design study in 4 campus residence halls to determine whether a message campaign about hand hygiene and the availability of gel hand sanitizer could decrease cold and flu illness and school and work absenteeism. Their…

  3. The Impact of a Health Campaign on Hand Hygiene and Upper Respiratory Illness among College Students Living in Residence Halls.

    Science.gov (United States)

    White, Cindy; Kolble, Robin; Carlson, Rebecca; Lipson, Natasha

    2005-01-01

    Hand hygiene is a key element in preventing the transmission of cold and flu viruses. The authors conducted an experimental-control design study in 4 campus residence halls to determine whether a message campaign about hand hygiene and the availability of gel hand sanitizer could decrease cold and flu illness and school and work absenteeism. Their…

  4. Hand carriage of Candida occurs at lesser rates in hospital personnel who use antimicrobial hand disinfectant.

    Science.gov (United States)

    Yildirim, Mustafa; Sahin, Idris; Oksuz, Sukru; Sencan, Irfan; Kucukbayrak, Abdulkadir; Cakir, Selma; Ozaydin, Cigdem

    2014-09-01

    The hands of hospital personnel are considered to be important for colonization and infection of patients with Candida spp. The aim of this study was to evaluate the effectiveness of different hand disinfectants in reducing the carriage of Candida species on the hands of hospital personnel. A controlled study was conducted at Duzce University School of Medicine Hospital. Eighty hospital personnel were included in the trial. Subjects were divided into 4 groups according to hand hygiene procedures: group 1, hand rubbing with alcohol-based solution; group 2, hand washing with 4% chlorhexidine gluconate; group 3, hand washing with 7.5% povidone-iodine; group 4, hand washing with plain soap and water. The hands of all participants were tested by culture with the broth wash technique. Hand carriage of Candida spp. was lower in the 4% chlorhexidine gluconate group (10.5%, p = 0.006), in the 7.5% povidone-iodine group (18.7%, p = 0.043), and in the alcohol-based hand rub group (21.1%, p = 0.048) compared to the group washing hands with plain soap and water (50%). The use of hand disinfectant containing antimicrobial agents is more effective than hand washing with water and soap in reducing carriage of Candida on the hands of hospital personnel. It is recommended that hospital personnel use an antimicrobial hand disinfectant in units where there is a high risk of Candida infection.

  5. Inspections of Hand Washing Supplies and Hand Sanitizer in Public Schools

    Science.gov (United States)

    Ramos, Mary M.; Blea, Mary; Trujillo, Rebecca; Greenberg, Cynthia

    2010-01-01

    Hand washing and hand antisepsis are proven infection control measures in the school setting, yet barriers such as lack of soap, paper towels, and hand sanitizer can hinder compliance. This pilot study measured the prevalence of hand cleaning supplies in public schools. Ten school districts (93 schools) participated in school nurse inspections. In…

  6. Contact transfer of anions from hands as a function of the use of hand lotions

    Science.gov (United States)

    Welker, R. W.; Schulman, M.

    2001-01-01

    Contact transfer of anions from human hands can result in contamination of materials, increasing their rate of corrosion. Two types of hand lotion were applied to the hands: one was specially formulated for cleanroom use and the other was a popular commercial lotion. The effect on contact transfer of anions was measured versus anion transfer from washed hands without lotions.

  7. Inexpensive and Time-Efficient Hand Hygiene Interventions Increase Elementary School Children's Hand Hygiene Rates

    Science.gov (United States)

    Snow, Michelle; White, George L.; Kim, Han S.

    2008-01-01

    Routine hand hygiene has been cited by the World Health Organization and the Centers for Disease Control and Prevention as a cost-effective and important hygiene measure in preventing the spread of infectious diseases. Several studies have explored children's hand hygiene habits, effects of scheduled hand hygiene, hand hygiene environmental…

  8. Inexpensive and Time-Efficient Hand Hygiene Interventions Increase Elementary School Children's Hand Hygiene Rates

    Science.gov (United States)

    Snow, Michelle; White, George L.; Kim, Han S.

    2008-01-01

    Routine hand hygiene has been cited by the World Health Organization and the Centers for Disease Control and Prevention as a cost-effective and important hygiene measure in preventing the spread of infectious diseases. Several studies have explored children's hand hygiene habits, effects of scheduled hand hygiene, hand hygiene environmental…

  9. Comparison of traditional hand wash with alcoholic hand rub in ICU setup

    Directory of Open Access Journals (Sweden)

    Maliekal Mona

    2005-01-01

    Full Text Available Background: Nosocomial infection rate are often higher for intensive care unit (ICU than other units of hospitals, and hands of health-care workers (HCWs play a major role in the transmission of the infections. Aim: To compare the efficacy of conventional hand wash with the hand rub in reducing the transient bacterial flora on the hands of nurses in ICU. Subject and Methods: The 34 nurses posted in our ICU during January-March 2003 were included. A total of 204 samples were collected for the residual bacterial flora on fingers using impression method on MacConkey agar plates. The subjects then used alcoholic hand rub or conventional hand wash and the residual bacterial flora rechecked by testing impression of fingers on MacConkey agar. Results: Escherichia coli, Klebsiella spp., nonlactose fermenting Gram-negative bacilli, staphylococci, and streptococci formed the transient bacterial flora on the hands. Moderate to heavy bacterial density was seen in more than 92.2% of the hands before washing or hand rub application. Conventional hand wash resulted in drastic reduction in the transient bacterial flora on hands in 50% cases whereas alcoholic hand rub achieved the effect in 95% of the samples. Conclusion: Compared with conventional hand wash, alcoholic hand rub is far more efficient in reducing transient bacterial flora on the hands of HCWs and it is more convenient and time saving. It is recommended as a hand hygiene practice in critical areas such as ICU.

  10. Self-reported hand hygiene practices, and feasibility and acceptability of alcohol-based hand rubs among village healthcare workers in Inner Mongolia, China.

    Science.gov (United States)

    Li, Y; Wang, Y; Yan, D; Rao, C Y

    2015-08-01

    Good hand hygiene is critical to reduce the risk of healthcare-associated infections. Limited data are available on hand hygiene practices from rural healthcare systems in China. To assess the feasibility and acceptability of sanitizing hands with alcohol-based hand rubs (ABHRs) among Chinese village healthcare workers, and to assess their hand hygiene practice. Five hundred bottles of ABHR were given to village healthcare workers in Inner Mongolia, China. Standardized questionnaires collected information on their work load, availability, and usage of hand hygiene facilities, and knowledge, attitudes, and practices of hand hygiene. In all, 369 (64.2%) participants completed the questionnaire. Although 84.5% of the ABHR recipients believed that receiving the ABHR improved their hand hygiene practice, 78.8% of recipients would pay no more than US$1.5 out of their own pocket (actual cost US$4). The majority (77.2%) who provided medical care at patients' homes never carried hand rubs with them outside their clinics. In general, self-reported hand hygiene compliance was suboptimal, and the lowest compliance was 'before touching a patient'. Reported top three complaints with using ABHR were skin irritation, splashing, and unpleasant residual. Village doctors with less experience practised less hand hygiene. The overall acceptance of ABHR among the village healthcare workers is high as long as it is provided to them for free/low cost, but their overall hand hygiene practice is suboptimal. Hand hygiene education and training is needed in settings outside of traditional healthcare facilities. Published by Elsevier Ltd.

  11. New non-alcoholic formulation for hand disinfection.

    Science.gov (United States)

    Biagi, Marco; Giachetti, Daniela; Miraldi, Elisabetta; Figura, Natale

    2014-04-01

    Hand washing is considered as the single most important strategy to prevent infections. World health organization (WHO) defines hand hygiene as a primary issue of personal care with particular reference to hospital personnel and health facility workers. In this work, we investigated a new combination for hand disinfection as an alternative to alcohol-based and chlorhexidine products. The new combination of 5-pyrrolidone-2-carboxylic acid (PCA) and copper sulphate pentahydrate (CS) was tested upon different bacterial species that normally colonize hands, including Staphylococcus aureus, methicillin resistant S. aureus (MR S. aureus), Staphylococcus epidermidis, multidrug resistant S. epidermidis (MDR S. epidermidis), Streptococcus pyogenes, Streptococcus agalactiae, Escherichia coli, Candida albicans and three clinical isolates: MR S. aureus, MDR S. epidermidis, and an E. coli strain. Minimal inhibitory concentrations (MICs), Minimal bactericidal concentrations (MBCs), fractional inhibitory concentration (FIC) indices, and fractional bactericidal concentration (FBC) indices were evaluated. Ethanol 70% V/V, isopropanol 60% V/V, and 4% w/V chlorhexidine solution were used as reference hand disinfectants. Copper sulphate pentahydrate was very effective against all tested microorganisms: The MIC and MBC for CS ranged from 781 mg/l against S. pyogenes to 12500 mg/l against E. coli strains and C. albicans. In addition, PCA exhibited a good antimicrobial activity, in particular, against S. pyogenes and S. agalactiae. The combination of CS and PCA showed a strong synergistic effect and all FIC indices were ≤0·500. The combination of CS and PCA were more effective than ethanol 70% V/V and isopropanol 60% V/V. In addition to antimicrobial activity, the new formulation possesses peculiar features such as residual activity and moisturizing effect. This work identifies a new strategy for hand disinfection.

  12. Ozonated water is inferior to propanol-based hand rubs for disinfecting hands.

    Science.gov (United States)

    Appelgrein, C; Hosgood, G; Dunn, A L; Schaaf, O

    2016-04-01

    Ozone is a strong oxidizing biocide that has broad-spectrum antimicrobial properties. The aim of the study was to compare the efficacy of ozone to a propanol-based hand rub for hand disinfection. Twenty subjects were enrolled in an in-vivo cross-over trial (prEN 12791). Subjects treated their hands with the reference procedure (propan-1-ol 60%) or with ozone (4 ppm). Post-wash bacterial counts were determined from one hand (immediate effect), and from the other hand that had been gloved for 3h (delayed effect). The investigation indicated that ozone is inferior to propan-1-ol 60% hand rub for hand asepsis.

  13. Development of normative data for hand strength and anthropometric dimensions in a population of automotive workers.

    Science.gov (United States)

    Kunelius, Amanda; Darzins, Susan; Cromie, Jean; Oakman, Jodi

    2007-01-01

    (1) To develop a normative data set for hand strength and anthropometric dimensions in automotive trim line workers. (2) To examine the relationship between trim line worker demographics and hand strength. Work tasks inherent in the automobile manufacturing industry such as forceful gripping and pinching, place physical demands upon the hands and fingers. This places workers at risk of developing a musculoskeletal injury. To reduce the risk of injury it is necessary to apply user strength data in the design phase of hand intensive tasks in order to create a fit between the person and the task. Demographic variables, anthropometry and maximal grip and pinch strength were measured for one hundred and sixty-one trim line automotive workers. Their data were analyzed to examine the associations between the variables. Significant hand strength differences were found in relation to age, gender, hand dominance and anthropometry. The workers in this study had significantly lower strength values than previously used reference data. The disparity between the present study's strength data and that of Mathiowetz et al. [22] may be due to the different demographic pools from which the populations were drawn. A training effect appeared to exist in trim line workers which may have reduced the disparity in hand strength between the hands as the number of years worked on the line increased. Caution should be taken when applying international normative data sets to the design of hand tools/workstations, as global differences in hand strength are likely to exist.

  14. Hand disinfection in hospitals - benefits and risks.

    Science.gov (United States)

    Kampf, Günter; Löffler, Harald

    2010-12-01

    The WHO regards hand hygiene as an essential tool for the prevention of noso-comial infections. The hygienic hand disinfection has a superior antimicrobial efficacy compared to hand washing and should be performed as the treatment of choice before and after a variety of activities at the point of patient care. Washing hands should be preferred when the hands are visibly soiled. Skin irritation is quite common among healthcare workers and is mainly caused by water, soap and long lasting occlusion. Compliance with hand disinfection in clinical practice is often low. Measures to improve compliance include training, provision of hand rubs where they are needed, and the responsibility of doctors to set a good example. Improved compliance in hand hygiene and targeted use of alcohol-based hand rubs can reduce the nosocomial infection rate by up to 40 %. The benefit of hand disinfection is therefore much larger than possible risks. © The Authors • Journal compilation © Blackwell Verlag GmbH, Berlin.

  15. Cognition investigation and analysis of hand hygiene of nursing staff in pension institutions

    Directory of Open Access Journals (Sweden)

    Yu Bing

    2017-01-01

    Full Text Available Objective: We investigate and analyze the cognition of hand hygiene of nursing staff in nursing institutions. This method provides reference for improving the hand hygiene condition of nursing staff in nursing homes, and we put forward the feasible solution to this situation. Methods: 100 nurses from five nursing institutions in Changchun were investigated using a self-designed questionnaire, and the results were analyzed. Results: due to the most old-age care institutions personnel are less educated, rapid flow of talents, and the health care training from endowment organization are low frequency or not organized, so most of nursing staff think hand hygiene has nothing to do with the health of the elderly. They grasp the knowledge of some common hand washing, and hand washing before and after the elderly care is not ideal. The effects of hand washing have a number of factors, the main factor is that the pension institutions hand washing facilities incomplete, and in fact the nursing staff work very busy. Discussion: from the government to pension institutions should strengthen and pay more attention to the training of pension agency front-line care staff hand hygiene knowledge, increase the training of professional nursing practitioners, focus on bringing in Colleges and universities social science or medical science related, similar professional personnel and institutional strengthening management of washing hands, according to the actual conditions to improve the hand washing facilities, adhere to wash their hands properly, so as to avoid occurrence of handling of disease spread.

  16. Giving Them a Hand: Wearing a Myoelectric Elbow-Wrist-Hand Orthosis Reduces Upper Extremity Impairment in Chronic Stroke.

    Science.gov (United States)

    Peters, Heather T; Page, Stephen J; Persch, Andrew

    2017-09-01

    To determine the immediate effect of a portable, myoelectric elbow-wrist-hand orthosis on paretic upper extremity (UE) impairment in chronic, stable, moderately impaired stroke survivors. Observational cohort study. Outpatient rehabilitation clinic. Participants exhibiting chronic, moderate, stable, poststroke, UE hemiparesis (N=18). Subjects were administered a battery of measures testing UE impairment and function. They then donned a fabricated myoelectric elbow-wrist-hand orthosis and were again tested on the same battery of measures while wearing the device. The primary outcome measure was the UE Section of the Fugl-Meyer Scale. Subjects were also administered a battery of functional tasks and the Box and Block (BB) test. Subjects exhibited significantly reduced UE impairment while wearing the myoelectric elbow-wrist-hand orthosis (FM: t17=8.56, P<.0001) and increased quality in performing all functional tasks while wearing the myoelectric elbow-wrist-hand orthosis, with 3 subtasks showing significant increases (feeding [grasp]: z=2.251, P=.024; feeding [elbow]: z=2.966, P=.003; drinking [grasp]: z=3.187, P=.001). Additionally, subjects showed significant decreases in time taken to grasp a cup (z=1.286, P=.016) and increased gross manual dexterity while wearing a myoelectric elbow-wrist-hand orthosis (BB test: z=3.42, P<.001). Results suggest that UE impairment, as measured by the Fugl-Meyer Scale, is significantly reduced when donning a myoelectric elbow-wrist-hand orthosis, and these changes exceeded the Fugl-Meyer Scale's clinically important difference threshold. Further, utilization of a myoelectric elbow-wrist-hand orthosis significantly increased gross manual dexterity and performance of certain functional tasks. Future work will integrate education sessions to increase subjects' ability to perform multijoint functional movements and attain consistent functional changes. Copyright © 2017. Published by Elsevier Inc.

  17. Effectiveness of prevention programmes for hand dermatitis: A systematic review of the literature

    NARCIS (Netherlands)

    Gils, R.F. van; Boot, C.R.L.; Gils, P.F. van; Bruynzeel, D.; Coenraads, P.J.; Mechelen, W. van; Riphagen, I.I.; Anema, J.R.

    2011-01-01

    Hand dermatitis is a prevalent disease with an episodic, chronic character. The use of medical resources is high and is often related to reduced (work) functioning. The burden is therefore high for patients and society. Management of hand dermatitis is often unsatisfactory, and for this reason

  18. The Performance of Left-Handed Participants on a Preferential Reaching Test

    Science.gov (United States)

    Mamolo, Carla M.; Roy, Eric A.; Bryden, Pamela J.; Rohr, Linda E.

    2005-01-01

    Previous research in our laboratory has examined the distribution of preferred hand (PH) reaches in working space with right-handed participants. In one study, we examined the effects of tool position and task demands on the frequency of PH reaches with right-handers (Mamolo, Roy, Bryden, & Rohr, 2004). We found that PH reaches were at a maximum…

  19. Quantifying the Hawthorne Effect in Hand Hygiene Compliance Through Comparing Direct Observation With Automated Hand Hygiene Monitoring.

    Science.gov (United States)

    Hagel, Stefan; Reischke, Jana; Kesselmeier, Miriam; Winning, Johannes; Gastmeier, Petra; Brunkhorst, Frank M; Scherag, André; Pletz, Mathias W

    2015-08-01

    To quantify the Hawthorne effect of hand hygiene performance among healthcare workers using direct observation. Prospective observational study. Intensive care unit, university hospital. Direct observation of hand hygiene compliance over 48 audits of 2 hours each. Simultaneously, hand hygiene events (HHEs) were recorded using electronic alcohol-based handrub dispensers. Directly observed and electronically recorded HHEs during the 2 hours of direct observation were compared using Spearman correlations and Bland-Altman plots. To quantify the Hawthorne effect, we compared the number of electronically recorded HHEs during the direct observation periods with the re-scaled electronically recorded HHEs in the 6 remaining hours of the 8-hour working shift. A total of 3,978 opportunities for hand hygiene were observed during the 96 hours of direct observation. Hand hygiene compliance was 51% (95% CI, 49%-53%). There was a strong positive correlation between directly observed compliance and electronically recorded HHEs (ρ=0.68 [95% CI, 0.49-0.81], Phand hygiene performance.

  20. Comparison of pressure pain threshold, grip strength,dexterity and touch pressure of dominant and non-dominant hands within and between right-and left-handed subjects.

    Science.gov (United States)

    Ozcan, Ayse; Tulum, Zeliha; Pinar, Lamia; Başkurt, Ferdi

    2004-12-01

    This study was done to evaluate differences in pressure pain threshold, grip strength, manual dexterity and touch pressure threshold in the dominant and non-dominant hands of right- and left-handed subjects, and to compare findings within and between these groups. Thirty-nine right-handed and twenty-one left-handed subjects participated in the study. Pressure pain threshold was assessed using a dolorimeter, grip strength was assessed with a hand-grip dynamometer, manual dexterity was evaluated using the VALPAR Component Work Sample-4 system, and touch pressure threshold was determined using Semmes Weinstein monofilaments. Results for the dominant and non-dominant hands were compared within and between the groups. In the right-handed subjects, the dominant hand was significantly faster with the VALPAR Component Work Sample-4, showed significantly greater grip strength, and had a significantly higher pressure pain threshold than the non-dominant hand. The corresponding results for the two hands were similar in the left-handed subjects. The study revealed asymmetrical manual performance in grip strength, manual dexterity and pressure pain threshold in right-handed subjects, but no such asymmetries in left-handed subjects.

  1. DESIGN OF A NOVEL DEXTEROUS ROBOT HAND

    Institute of Scientific and Technical Information of China (English)

    Jiang Li; Liu Hong; Xie Zongwu; Jin Minghe; Gao Xiaohui; Hirzinger G

    2004-01-01

    In the robotic community more and more hands are developed. Based on the experience of HIT Hand and DLR Hand II, a smaller and easier manufactured dexterous robot hand with multisensory function and high integration is jointly developed. The prototype of the hand is successfully built. It has 4 fingers in total 13-DOFs (degree of freedom). Each finger has 3-DOFs and 4 joints, the last 2 joints are mechanically coupled by means of four-bar linkage mechanism. It also has an additional DOF to realize motion of the thumb relative to the palm. The fingertip force can reach up to 10 N. Full integration of mechanical body, actuation system, multisensory system and electronics is a significant feature. DSP based control system is implemented in PCI bus architecture and the serial communication between the hand and DSP needs only 2 lines.

  2. Acute Arterial Thrombosis of the Hand.

    Science.gov (United States)

    Iannuzzi, Nicholas P; Higgins, James P

    2015-10-01

    Arterial thrombosis of the hand occurs infrequently but may result in considerable morbidity and compromise of hand function. The hand surgeon may be called upon to direct management in cases of acute arterial thrombosis of the hand and should have an understanding of the available diagnostic tools and treatment modalities. This article discusses the vascular anatomy of the hand and clinical manifestations of arterial thrombosis. Differences between isolated thrombosis and diffuse intravascular injury are detailed, and treatment options for these conditions are described. Appropriate care often requires coordination with interventional radiologists or vascular surgeons. Outcomes after treatment of arterial thrombosis of the hand are variable, and prognosis may be related to whether isolated thrombosis or diffuse intravascular injury is present.

  3. Hand eczema severity and quality of life

    DEFF Research Database (Denmark)

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

    2008-01-01

    was found for hand eczema severity and age (P sick leave was getting higher (P ... 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...

  4. Contact Sensors for Dextrous Robotic Hands.

    Science.gov (United States)

    1986-06-01

    Contact Sensors for Dexterous Robotic Hands Memorandum 6. PERFORMING ORG. REPORT NUMOER 7. AUTiOR1(oj 11. CONTRACT OR GRANT NUIMSERI.) N00014-81-0494...current generation robots. .5.N Contact Sensors for Dexterous Robotic Hands by David Mark Siegel B.S.E. Electrical Engineering and Computer Science... Robotic Hands by David Mark Siegel Submitted to the Department of Electrical Engineering and Computer Science on April 23, 1986 in partial fulfillment of

  5. Hand Gesture Recognition: A Literature Review

    OpenAIRE

    Rafiqul Zaman Khan; Noor Adnan Ibraheem

    2012-01-01

    Hand gesture recognition system received great attention in the recent few years because of its manifoldness applications and the ability to interact with machine efficiently through human computer interaction. In this paper a survey of recent hand gesture recognition systems is presented. Key issues of hand gesture recognition system are presented with challenges of gesture system. Review methods of recent postures and gestures recognition system presented as well. Summary of res...

  6. HUMAN HAND STUDY FOR ROBOTIC EXOSKELETON DELVELOPMENT

    Directory of Open Access Journals (Sweden)

    BIROUAS Flaviu Ionut

    2016-11-01

    Full Text Available This paper will be presenting research with application in the rehabilitation of hand motor functions by the aid of robotics. The focus will be on the dimensional parameters of the biological human hand from which the robotic system will be developed. The term used for such measurements is known as anthropometrics. The anthropometric parameters studied and presented in this paper are mainly related to the angular limitations of the finger joints of the human hand.

  7. Hand Specific Representations in Language Comprehension

    Directory of Open Access Journals (Sweden)

    Claire eMoody-Triantis

    2014-06-01

    Full Text Available Theories of embodied cognition argue that language comprehension involves sensory-motor re-enactments of the actions described. However, the degree of specificity of these re-enactments as well as the relationship between action and language remains a matter of debate. Here we investigate these issues by examining how hand-specific information (left or right hand is recruited in language comprehension and action execution. An fMRI study tested right-handed participants in two separate tasks that were designed to be as similar as possible to increase sensitivity of the comparison across task: an action execution go/no-go task where participants performed right or left hand actions, and a language task where participants read sentences describing the same left or right handed actions as in the execution task. We found that language-induced activity did not match the hand-specific patterns of activity found for action execution in primary somatosensory and motor cortex, but it overlapped with pre-motor and parietal regions associated with action planning. Within these pre-motor regions, both right hand actions and sentences elicited stronger activity than left hand actions and sentences - a dominant hand effect -. Importantly, both dorsal and ventral sections of the left pre-central gyrus were recruited by both tasks, suggesting different action features being recruited. These results suggest that (a language comprehension elicits motor representations that are hand-specific and akin to multimodal action plans, rather than full action re-enactments; and (b language comprehension and action execution share schematic hand-specific representations that are richer for the dominant hand, and thus linked to previous motor experience.

  8. Photonic crystal with left-handed components

    CERN Document Server

    Markos, Peter

    2015-01-01

    We show that the periodic array of left-handed cylinders possesses a rich spectrum of guided modes when the negative permeability of cylinders equals exactly to minus value of permeability of embedding media. These resonances strongly influences propagation of electromagnetic waves through photonic structures made from left-handed materials. A series of Fano resonances excited by incident wave destroys the band frequency spectrum of square array of left-handed cylinders and increases considerably the absorption of transmitted waves.

  9. Case series on tropical diabetic hand syndrome.

    Science.gov (United States)

    Ezeani, I U; Edo, A E

    2014-01-01

    Tropical diabetic hand syndrome is a term used to describe diabetes complication of the hand affecting people in the tropics. It consists of localized cellulitis with variable swelling and ulceration of the hands, progressive, fulminant hand sepsis and gangrene in extreme cases. This syndrome is not well-recognized and is therefore less frequently reported. The authors describe three different female patients who were known diabetics of varying duration presenting with this syndrome at our tertiary health center and who were successfully managed by both the surgical and medical units. The need for early diagnosis and aggressive management is emphasized.

  10. Comparative Analysis of Hand Gesture Recognition Techniques

    Directory of Open Access Journals (Sweden)

    Arpana K. Patel

    2015-03-01

    Full Text Available During past few years, human hand gesture for interaction with computing devices has continues to be active area of research. In this paper survey of hand gesture recognition is provided. Hand Gesture Recognition is contained three stages: Pre-processing, Feature Extraction or matching and Classification or recognition. Each stage contains different methods and techniques. In this paper define small description of different methods used for hand gesture recognition in existing system with comparative analysis of all method with its benefits and drawbacks are provided.

  11. Assessing patient awareness of proper hand hygiene.

    Science.gov (United States)

    Busby, Sunni R; Kennedy, Bryan; Davis, Stephanie C; Thompson, Heather A; Jones, Jan W

    2015-05-01

    The authors hypothesized that patients may not understand the forms of effective hand hygiene employed in the hospital environment. Multiple studies demonstrate the importance of hand hygiene in reducing healthcare-associated infections (HAIs). Extensive research about how to improve compliance has been conducted. Patients' perceptions of proper hand hygiene were evaluated when caregivers used soap and water, waterless hand cleaner, or a combination of these. No significant differences were observed, but many patients reported they did not notice whether their providers cleaned their hands. Educating patients and their caregivers about the protection afforded by proper, consistent hand hygiene practices is important. Engaging patients to monitor healthcare workers may increase compliance, reduce the spread of infection, and lead to better overall patient outcomes. This study revealed a need to investigate the effects of patient education on patient perceptions of hand hygiene. Results of this study appear to indicate a need to focus on patient education and the differences between soap and water versus alcohol-based hand sanitizers as part of proper hand hygiene. Researchers could be asking: "Why have patients not been engaged as members of the healthcare team who have the most to lose?"

  12. Anthropomorphic Robot Hand And Teaching Glove

    Science.gov (United States)

    Engler, Charles D., Jr.

    1991-01-01

    Robotic forearm-and-hand assembly manipulates objects by performing wrist and hand motions with nearly human grasping ability and dexterity. Imitates hand motions of human operator who controls robot in real time by programming via exoskeletal "teaching glove". Telemanipulator systems based on this robotic-hand concept useful where humanlike dexterity required. Underwater, high-radiation, vacuum, hot, cold, toxic, or inhospitable environments potential application sites. Particularly suited to assisting astronauts on space station in safely executing unexpected tasks requiring greater dexterity than standard gripper.

  13. Determinants of Attentional Modulation Near the Hands

    Directory of Open Access Journals (Sweden)

    Holger eSchultheis

    2013-11-01

    Full Text Available A series of visual search experiments conducted by Abrams et al. (2008 indicates that disengagement of visual attention is slowed when the array of objects that are to be searched are close to the hands (hands on the monitor than if they are not close to the hands (hands in the lap. These experiments establish the impact one's hands can have on visual attentional processing. In the current paper we more closely examine these two hand postures with the goal of pinpointing which characteristics are crucial for the observed differences in attentional processing. Specifically, in a set of 4 experiments we investigated additional hand postures and additional modes of response to address this goal. We replicated the original Abrams et al. (2008 effect when only the two original postures were used; however, surprisingly, the effect was extinguished with the new range of postures and response modes, and this extinction persisted across different populations (German and English students, and different experimental hardware. Furthermore, analyses indicated that it is unlikely that the extinction of the effect was caused by increased practice due to additional blocks of trials or by an increased probability that participants were able to guess the purpose of the experiment. As such our results suggest that in addition to the nature of the postures of the hand, the number of postures is a further important factor that influences the impact the hands have on visual processing.

  14. Superunderactuated Multifingered Hand for Humanoid Robot

    Institute of Scientific and Technical Information of China (English)

    ZHANG Wen-zeng; CHEN Qiang; SUN Zhen-guo; XU Lei

    2006-01-01

    A novel underactuated fmger mechanism was designed.Finger mechanism was incoroorated into a humanoid robot hand to obtain more degrees of freedom with less actuators and good grasping functions with shape adaptation,therefore decreasing the requirements for the control systern.A novel superunderactuated multifingered hand (TH-2 Hand)for a humanoid robot was designed based on a previous underactuated finger mechanism.The TH-2 Hand was attached to a humanoid robot because of its high personification,supemnderactuation,compactness,easy real-time control,small volume,light weight,and strong graspmg tunction.

  15. Survival of pneumococcus on hands and fomites

    Directory of Open Access Journals (Sweden)

    Beissbarth Jemima

    2008-11-01

    Full Text Available 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 specified time intervals was determined by swabbing and re-culture onto horse blood agar. Pneumococci inoculated onto hands of volunteers were recovered after 3 minutes at 4% to 79% of the initial inoculum. Recovery from one individual was consistently higher. By one hour, only a small number of pneumococci were recovered and this was dependent on the suspension medium used. At subsequent intervals and up to 3 hours after inoculation, Conclusion The poor survival of pneumococci on hands suggests that the high prevalence of pneumococcal hand contamination in some populations is related to frequent inoculation rather than long survival. It is plausible that hand contamination plays a (brief role in transmission directly, and indirectly through contamination via fomites. Regular hand washing and timely cleansing or removal of contaminated fomites may aid control of pneumococcal transmission via these routes.

  16. The relation between in hand manipulation skills,and visual-motor integration skills with hand writing skills of students of grade one of primery schools in Tehran

    Directory of Open Access Journals (Sweden)

    Minoo Kalantari

    2012-10-01

    Full Text Available Background and Aim: Hand writing is one of the most important abilities that children can gain and use as one part of their duties during their schooling. Students should write fluently and fast to have good connection with school works and gain good grades in exams. It is clear that hand writing problems can influence on children’s other abilities, because this skill is declared often as a reflection of intelligence and although what they write is the same, students with bad hand writing gain lower grades than students with nice hand writing. Recognition of sub base items in this problem will be affective in assessment, intermediation and prevention programs for children who are suffering from this problem. This study is designed to appoint the relation between in hand manipulation skills and visual-motor integration skills with hand writing skills of students of grade one of primary schools in Tehran.Material & Methods: This study was a descriptive-analytic (sectional investigation. 139 students had been chosen by accident. Instruments which had been used in this study consisted of visual-motor integration test, hand writing quality checklist, chronometer and nine hole PEG test. After data collection, the results were analyzed.Results: The results indicate that visual- motor integration and in hand manipulation skills both are affective in children’s hand writing skills. Grades of girls and boys in visual-motor integration were significantly different. Mean grade of girls in this test was higher than boys, but these variants in hand manipulation skills were not significantly different. Also there was no significant different in handwriting speed and quality between boys and girls.Conclusion: The results indicate that by assessment of visual- motor integration skills and in hand manipulation skills we may be able to find more exact ways to prevent and treat children who are suffering from hand writing problems.

  17. Impact of the amount of hand rub applied in hygienic hand disinfection on the reduction of microbial counts on hands.

    Science.gov (United States)

    Goroncy-Bermes, P; Koburger, T; Meyer, B

    2010-03-01

    Two different hand rubs were tested in order to investigate the minimum volume required for microbicidal efficacy according to the European Norm EN 1500; we also sought to determine whether there is a correlation with hand size. Eight male volunteers with big hands (mean 184 cm(2)) and eight female volunteers with significantly smaller hands (mean 148 cm(2); Pdisinfectant (R) (product A: P=3.34, R=4.00, P=0.001; product B: P=3.37, R=3.75, P=0.022). Higher volumes (product A: 3 and 4 mL; product B: 2.5, 3 and 4 mL) ensured that the pass criteria of the European Norm (EN) 1500 were fulfilled. For both products log(10) reductions increased with increasing product volume until a plateau was reached. For the smaller female hands, this plateau level was reached after applying 3 mL of product A and 2.5 mL of product B. The plateau level on male hands was observed after treating the hands with > or =4 mL of product A and 3 mL of product B. The increase in product volume also correlated with the decrease in the number of volunteers considering the product volume applied as insufficient. In conclusion, the applied volume for hygienic hand rub should not fall below 3 mL in order to achieve maximum benefit.

  18. Research on Gesture Definition and Electrode Placement in Pattern Recognition of Hand Gesture Action SEMG

    Science.gov (United States)

    Zhang, Xu; Chen, Xiang; Zhao, Zhang-Yan; Tu, You-Qiang; Yang, Ji-Hai; Lantz, Vuokko; Wang, Kong-Qiao

    The goal of this study is to explore the effects of electrode place-ment on the hand gesture pattern recognition performance. We have conducted experiments with surface EMG sensors using two detecting electrode channels. In total 25 different hand gestures and 10 different electrode positions for measuring muscle activities have been evaluated. Based on the experimental results, dependencies between surface EMG signal detection positions and hand gesture recognition performance have been analyzed and summarized as suggestions how to define hand gestures and select suitable electrode positions for a myoelectric control system. This work provides useful insight for the development of a medical rehabilitation system based on EMG technique.

  19. Hand Gesture Based Wireless Robotic Arm Control for Agricultural Applications

    Science.gov (United States)

    Kannan Megalingam, Rajesh; Bandhyopadhyay, Shiva; Vamsy Vivek, Gedela; Juned Rahi, Muhammad

    2017-08-01

    One of the major challenges in agriculture is harvesting. It is very hard and sometimes even unsafe for workers to go to each plant and pluck fruits. Robotic systems are increasingly combined with new technologies to automate or semi automate labour intensive work, such as e.g. grape harvesting. In this work we propose a semi-automatic method for aid in harvesting fruits and hence increase productivity per man hour. A robotic arm fixed to a rover roams in the in orchard and the user can control it remotely using the hand glove fixed with various sensors. These sensors can position the robotic arm remotely to harvest the fruits. In this paper we discuss the design of hand glove fixed with various sensors, design of 4 DoF robotic arm and the wireless control interface. In addition the setup of the system and the testing and evaluation under lab conditions are also presented in this paper.

  20. A Cognitive Analysis of Truck Drivers’ Right-hand Turns

    DEFF Research Database (Denmark)

    Sieker, Tobias Grønborg; G. Skulason, Thorgeir; Sletting, Kristian

    2015-01-01

    using several brief glances in mirrors, and that the front and near-zone mirrors are never used during right-hand turns. Controlling the vehicle is found to be more or less automatic, whereas their focus is on the orientation about surroundings. Lastly, the drivers’ behavior is discussed in relation......This paper presents an investigation of truck drivers’ performance during right-hand turns performed in intersections with traffic lights in order to elicit the truck drivers’ domain, decision-making processes, and the strategies used while executing the turn. To gain knowledge about this, a truck...... driving instructor is interviewed, and four truck drivers are observed and interviewed. This results in a cognitive work analysis with the phases work domain analysis, control task analysis and strategies analysis. Through this study it is indicated that many different types of information are sought...

  1. [Therapeutic patient education in chronic hand dermatitis].

    Science.gov (United States)

    Gelot, P; Avenel-Audran, M; Balica, S; Bensefa, L; Crépy, M-N; Debons, M; Ammari, H; Milpied, B; Raison, N; Vigan, M; Weibel, N; Stalder, J-F; Bernier, C

    2014-06-01

    Hand dermatitis (HD) is usually due to a combination of various interacting factors. It involves significant impairment of the quality of life with psychological and socioeconomic impact. A therapeutic education program in HD.was elaborated by 19 health professionals (dermatologists, occupational clinical physicians, nurses, psychologists, environmental medical advisor) with experience in therapeutic education or skills in HD, according to the recommendations of Haute Autorité de Santé. The program includes an individual medical consultation to perform educational diagnostic, two collective workshops and a medical evaluation consult. Two group workshops "the disease, irritant factors and its treatments" and "the experiences and feelings" were elaborated with learning objectives and educative tools. Different scores were proposed to evaluate the program and acquired skills. Therapeutic education is an efficient way to help patients to adopt skin protection measures essential to healing. We propose a guideline of therapeutic education in HD including skills and educative tools and intended for health professionals to serve as working basis.

  2. Science Literacy: Hand in Glove with Numeracy

    Directory of Open Access Journals (Sweden)

    Gerry G. Meisels

    2010-07-01

    Full Text Available Science Literacy requires numeracy as part of its foundation, and much of Numeracy draws on examples and applications from the sciences. They share the goal of creating a society that is mathematics numerate and science literate, and are interrelated. National priorities to strengthen both among all our students are driven by practical considerations of economic competitiveness that increasingly depend on technological innovation. It is also critical to each individual for long-term job opportunities and for informed citizenship. With up to 80% of 21st century jobs requiring mathematics and science skills, a large majority of the 2,900,000 students who graduate from America’s high schools every year must become Numerate and Science Literate. Many of these students are not motivated to learn, requiring a change in teaching strategies. Societal will and substantial resources are required to help teachers adopt new approaches that are much more demanding than traditional lectures. Major organizational changes may be needed to strengthen student experience in elementary schools. Advocates of Numeracy and Science Literacy need to work hand in glove to create a citizenry prepared to compete in the 21st century.

  3. Perfection of technical and tactical preparation of sportsmen of hand-to-hand fight

    Directory of Open Access Journals (Sweden)

    Serebryak V.V.

    2010-06-01

    Full Text Available Essence of innovative hike is considered to upgrading preparation of sportsmen of hand-to-hand fight. 58 sportsmen of section of hand-to-hand fight took part in research. Age of sportsmen are from 17 to 22 years. Developed and approved the most effective technical and tactical charts of construction of duel with the opponents of different styles of single combats. It is well-proven that offered approach instrumental in development of operative thought and adaptation to sparring of hand-to-hand fight.

  4. Left-handed and right-handed rotation double function circular polarizer

    Institute of Scientific and Technical Information of China (English)

    TANG Heng-jing; WU Fu-quan; DENG Hong-yan; ZHAO Shuang

    2005-01-01

    In order to gain circularly polarized light of left-handed and right-handed rotation by using a fixed device, a left-handed and right-handed rotation double function circular polarizer is designed with two λ/4 retarders and one polarizer, and its operating principle is analysed by matrix optical means. The result indicates that when the monochromatic light enters this circular polarizer in the positive direction and the negative direction,the emergent light should be circularly polarized light,of left-handed and right-handed rotation respectively. The testing system has been established to verify the above results.

  5. Hand1 overexpression inhibits medulloblastoma metastasis

    Energy Technology Data Exchange (ETDEWEB)

    Asuthkar, Swapna; Guda, Maheedhara R. [Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States); Martin, Sarah E. [Department of Pathology, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States); Antony, Reuben; Fernandez, Karen [Department of Pediatrics, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States); Lin, Julian [Department of Neurosurgery, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States); Tsung, Andrew J. [Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States); Department of Neurosurgery, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States); Illinois Neurological Institute, Peoria, IL 61656 (United States); Velpula, Kiran K., E-mail: velpula@uic.edu [Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States); Department of Neurosurgery, University of Illinois College of Medicine at Peoria, Peoria, IL 61656 (United States)

    2016-08-19

    Medulloblastoma (MB) is the most frequent malignant pediatric brain tumor. Current treatment includes surgery, radiation and chemotherapy. However, ongoing treatment in patients is further classified according to the presence or absence of metastasis. Since metastatic medulloblastoma are refractory to current treatments, there is need to identify novel biomarkers that could be used to reduce metastatic potential, and more importantly be targeted therapeutically. Previously, we showed that ionizing radiation-induced uPAR overexpression is associated with increased accumulation of β-catenin in the nucleus. We further demonstrated that uPAR protein act as cytoplasmic sequestration factor for a novel basic helix-loop-helix transcription factor, Hand1. Among the histological subtypes classical and desmoplastic subtypes account for the majority while large cell/anaplastic variant is most commonly associated with metastatic disease. In this present study using immunohistochemical approach and patient data mining for the first time, we demonstrated that Hand1 expression is observed to be downregulated in all the subtypes of medulloblastoma. Previously we showed that Hand1 overexpression regulated medulloblastoma angiogenesis and here we investigated the role of Hand1 in the context of Epithelial-Mesenchymal Transition (EMT). Moreover, UW228 and D283 cells overexpressing Hand1 demonstrated decreased-expression of mesenchymal markers (N-cadherin, β-catenin and SOX2); metastatic marker (SMA); and increased expression of epithelial marker (E-cadherin). Strikingly, human pluripotent stem cell antibody array showed that Hand1 overexpression resulted in substantial decrease in pluripotency markers (Nanog, Oct3/4, Otx2, Flk1) suggesting that Hand1 expression may be essential to attenuate the EMT and our findings underscore a novel role for Hand1 in medulloblastoma metastasis. - Highlights: • Hand1 expression is downregulated in Medulloblastoma. • Hand1 over expression reduce

  6. A composite tale of two right-handed neutrinos

    CERN Document Server

    Barenboim, Gabriela

    2016-01-01

    In this work, we develop a model for Higgs-like composites based on two generations of right handed neutrinos which condense. We analyze the Spontaneous Symmetry Breaking of the theory with two explicit breakings, setting the different scales of the model and obtaining massive bosons as a result. Finally, we calculate the gravitational wave imprint left by the phase transition associated to the symmetry breaking of a generic potential dictated by the symmetries of the composites.

  7. Composite states of two right-handed neutrinos

    Science.gov (United States)

    Barenboim, Gabriela; Bosch, Cristian

    2016-12-01

    In this work, we develop a model for Higgs-like composites based on two generations of right-handed neutrinos that condense. We analyze the spontaneous symmetry breaking of the theory with two explicit breakings, setting the different scales of the model and obtaining massive bosons as a result. Finally, we calculate the gravitational wave imprint left by the phase transition associated with the symmetry breaking of a generic potential dictated by the symmetries of the composites.

  8. Control strategies for smart prosthetic hand technology: an overview.

    Science.gov (United States)

    Naidu, D; Chen, Cheng-Hung; Perez, Alba; Schoen, Marco P

    2008-01-01

    A chronological overview of the applications of control theory to prosthetic hand is presented. The overview focuses on hard computing or control techniques such as multivariable feedback, optimal, nonlinear, adaptive and robust and soft computing or control techniques such as artificial intelligence, neural networks, fuzzy logic, genetic algorithms and on the fusion of hard and soft control techniques. This overview is not intended to be an exhaustive survey on this topic and any omissions of other works is purely unintentional.

  9. Tribal Hands and Ethnic Votes

    DEFF Research Database (Denmark)

    Elling, Rasmus Christian

    2015-01-01

    Ethnic politics is a serious domestic challenge in Iran. Non-Persian communities are mobilizing to claim their rights and to demand representation in a system that activists claim is biased against minorities and the peripheral regions. Yet the inner workings of contemporary Iranian ethnic politics...... are largely understudied. This article explores recent evolutions in the role that ethnicity, regionalism and tribalism plays in Iranian domestic politics. It focuses on how these interconnected factors figured in the 2013 presidential and local council elections in Iran in a particular province that has...

  10. Impact of hand eczema severity on quality of life

    Directory of Open Access Journals (Sweden)

    Ujwala Priya Charan

    2013-01-01

    Full Text Available Background: Hand eczema is a common disease seen in dermatological practice comprising of a spectrum ranging from mild disease to a severe distressing and chronic course with a negative impact on the quality of life. Aim: To assess the impact of hand eczema severity on quality of life. Materials and Methods: Patients with hand eczema were enrolled in a prospective study. Disease severity was assessed by hand eczema severity index (HECSI score and quality of life by dermatology life quality index (DLQI questionnaire. Results: Forty-six patients participated of which 22 (47.8% were males and 24 (52.2% females. The commonest age group affected among men and women was 50-59 years (31.8% and 40-49 years (41.7% respectively. History of atopy was found in 23.9% and 63% had persistent disease. In 28 (60.9%, the trigger was washing soaps and detergents of which 21 (87.5% were housewives. Of those employed, 27.7% reported loss of work days. The mean HECSI score was 14.46 (S.D = 20.98 and mean DLQI score was 9.54 (S.D = 5.62. Gender, age, occupation and duration of disease did not significantly affect the quality of life or disease severity. Increased episodes of eczema (>4 episodes/year showed a statistically significant correlation with DLQI (P value = 0.021. There was no significant correlation between HECSI score and DLQI in this study. Conclusion: Majority of the patients with hand eczema had a significant impairment of their quality of life. The impairment of quality of life in this study was mainly dependent on increased frequency of the eruptions and not on hand eczema severity.

  11. Factors predicting health status and recovery of hand function after hand burns in the second year after hospital discharge.

    Science.gov (United States)

    Knight, Amber; Wasiak, Jason; Salway, Jacqueline; O'Brien, Lisa

    2017-02-01

    Hands are the most commonly burnt body part given humans' innate response to guard their face from injury, and are known to have detrimental functional and psychological consequences. Conflicting evidence exists regarding the impact of hand burns on long-term health status and global functioning. The objective of this study was to identify patient and clinical characteristics that predict health status and hand function of people at 12-24 months after hand burn. The Burns Specific Health Scale-Brief (BSHS-B) and the Brief Michigan Hand Outcome Questionnaire (Brief MHQ) were administered to community-dwelling adults who were between one and two years after admission to a statewide burns service for burns including one or both hands. Demographic, injury, and treatment data were collected to identify which factors predict health status and hand function in the second year after admission. Linear regression analyses adjusted for total burn surface area and burn depth were conducted to identify important predictors or outcomes. The sample (n=41) was 80.5% male, with a mean age of 44.5 years and total body surface area (TBSA) of 8.4%. Psychiatric illness (regression coefficient -56.6, confidence interval (95% CI) -76.70, -36.49) and female gender (-20.3; 95% CI -0.77, -40.29) were key predictors of poorer global health status on the BSHS-B. Females also scored worse on body image (-5.35; 95% CI -1.83, -8.87) and work (-4.13; 95% CI -0.64, -7.62) domains of BSHS-B. The need for reconstructive or secondary surgery (-38.84; 95% CI -58.04, -19.65) and female gender (-16.30; 95% CI -4.03, -28.57) were important predictors of poorer hand function. Women and those with a history of psychiatric illness are particularly vulnerable to poorer outcomes in health status and/or hand function after burns, and may benefit from more intensive rehabilitation support and long-term follow-up. Copyright © 2016 Elsevier Ltd and ISBI. All rights reserved.

  12. Insight with hands and things.

    Science.gov (United States)

    Vallée-Tourangeau, Frédéric; Steffensen, Sune Vork; Vallée-Tourangeau, Gaëlle; Sirota, Miroslav

    2016-10-01

    Two experiments examined whether different task ecologies influenced insight problem solving. The 17 animals problem was employed, a pure insight problem. Its initial formulation encourages the application of a direct arithmetic solution, but its solution requires the spatial arrangement of sets involving some degree of overlap. Participants were randomly allocated to either a tablet condition where they could use a stylus and an electronic tablet to sketch a solution or a model building condition where participants were given material with which to build enclosures and figurines. In both experiments, participants were much more likely to develop a working solution in the model building condition. The difference in performance elicited by different task ecologies was unrelated to individual differences in working memory, actively open-minded thinking, or need for cognition (Experiment 1), although individual differences in creativity were correlated with problem solving success in Experiment 2. The discussion focuses on the implications of these findings for the prevailing metatheoretical commitment to methodological individualism that places the individual as the ontological locus of cognition.

  13. Patient-centered hand hygiene: the next step in infection prevention.

    Science.gov (United States)

    Landers, Timothy; Abusalem, Said; Coty, Mary-Beth; Bingham, James

    2012-05-01

    Hand hygiene has been recognized as the most important means of preventing the transmission of infection, and great emphasis has been placed on ways to improve hand hygiene compliance by health care workers (HCWs). Despite increasing evidence that patients' flora and the hospital environment are the primary source of many infections, little effort has been directed toward involving patients in their own hand hygiene. Most previous work involving patients has included patients as monitors or auditors of hand hygiene practices by their HCWs. This article reviews the evidence on the benefits of including patients more directly in hand hygiene initiatives, and uses the framework of patient-centered safety initiatives to provide recommendations for the timing and implementation of patient hand hygiene protocols. It also addresses key areas for further research, practice guideline development, and implications for training of HCWs.

  14. Stimulus-response compatibility with body parts: a study with hands.

    Science.gov (United States)

    Lameira, Allan Pablo; Pereira, Antônio; Fraga-Filho, Roberto Sena; Gawryszewski, Luiz G

    2015-07-01

    Stimulus-response compatibility (SRC) effects are classified depending on the way that the elements of the stimulus and response sets interact, influencing both the speed and accuracy of the motor response. This is particularly important for social stimuli, such as hands. However, the stimuli used in most SRC studies are often simple or abstract figures. Our main goal in the present work was to investigate how task ensembles containing body parts (hands) as stimuli fit into Kornblum's taxonomy expressed in the dimensional overlap model. Specifically, we test whether hand stimuli elicit Simon or spatial Stroop effects in a SRC task. We set up two experiments using either hands or arrows as stimuli. Our results demonstrate that hands elicit a Simon effect in a SRC task. However, different from arrows, which constitute Type 8 Kornblum's ensembles, hands do not elicit a spatial Stroop effect and form Type 3 ensembles.

  15. Transfer of fibres on the hands of living subjects and their persistence during hand washing.

    Science.gov (United States)

    Hong, Sungwook; Han, Aleum; Kim, Sojung; Son, Dasom; Min, Heewon

    2014-12-01

    Textile fibres were transferred to the hands of ten living subjects and their persistence was determined after hand washing. Average number of fibres transferred was 300 ± 133 (female 288 ± 92, male 311 ± 163) per 100 cm(2) hand area in the 100 experiments. However the number of fibres transferred was not gender dependent but individual dependent. The hand texture of subjects was compared with the number of fibres transferred but the relationship was not observed. The number of fibres transferred varied significantly for the 10 repeated experiments performed under the same conditions for the same subject. The subjects were then asked to wash their hands with water. One test group washed their hands with standing water, and the other with running tap water. Afterwards, the number of fibres remaining on the test subjects' hands were investigated. Migration of the fibres on the surface of the observed hands did occur but total loss of transferred fibre after hand washing did not occur. The average number of fibres remaining per 100 cm(2) hand area was 14 ± 10 (range=3-72) for hand washing with standing water, and 10 ± 12 (range=0-79) for washing with running tap water. The results of this study show the possibility of finding fibres on the hands of a person involved in a criminal case even after hand washing before fibre collection.

  16. Mobility Work

    DEFF Research Database (Denmark)

    Bardram, Jakob Eyvind; Bossen, Claus

    2005-01-01

    We posit the concept of Mobility Work to describe efforts of moving about people and things as part of accomplishing tasks. Mobility work can be seen as a spatial parallel to the concept of articulation work proposed by the sociologist Anselm Strauss. Articulation work describes efforts...... of coordination necessary in cooperative work, but focuses, we argue, mainly on the temporal aspects of cooperative work. As a supplement, the concept of mobility work focuses on the spatial aspects of cooperative work. Whereas actors seek to diminish the amount of articulation work needed in collaboration...... by constructing Standard Operation Procedures (SOPs), actors minimise mobility work by constructing Standard Operation Configurations (SOCs). We apply the concept of mobility work to the ethnography of hospital work, and argue that mobility arises because of the need to get access to people, places, knowledge and...

  17. 30 CFR 57.7028 - Hand clearance.

    Science.gov (United States)

    2010-07-01

    ... Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINES Drilling and Rotary Jet Piercing Drilling-Underground Only § 57.7028 Hand clearance. Persons shall not rest their hands on the chuck...

  18. Hand kinematics: Application in clinical practice

    Directory of Open Access Journals (Sweden)

    Santosh Rath

    2011-01-01

    Full Text Available Pathological conditions of the hand consequent to injuries, paralysis, disease, arthritis and congenital difference results in loss or limitation of function, deformities, stiffness, inadequate power and poor position for pinch. The pathogenesis of deformities is influenced by bio-mechanical principles of joints and muscle function. The crippling impact of secondary changes due to edema, soft tissue contractures, muscle shortening and functional adaptations also have a mechanical basis. For clinicians and hand therapists, it is necessary to understand these fundamental principles of biomechanics to plan treatment modalities. Interpretation of mechanics of hand deformities in rheumatoid arthritis and paralysis will enable the treating team to identify the appropriate interventions of splinting, therapy and surgical procedures. Basic knowledge of the principles of hand clinical bio-mechanics will help the beginner to sail through the multitude of tendon transfers described in the text books of hand surgery and find the best solution for a particular clinical presentation. Similarly, knowledge of bio-mechanics will provide solutions to an experienced surgeon to plan treatment protocols for complex situations. The article presents a concise summary of the basic principles of hand bio-mechanics for common hand conditions seen in clinical practice. Understanding and applying these principles will help clinicians in planning and devising treatment options for common and complex hand conditions.

  19. Hand Hygiene Practices among Medical Students

    Directory of Open Access Journals (Sweden)

    Azzam al Kadi

    2012-01-01

    Full Text Available 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 awareness of the indications for hand hygiene and compliance was observed during Objective Structured Clinical Examination (OSCE sessions. Sixty students including thirty-six males (60% and twenty-four females (40% participated voluntarily in the study. Results. The average awareness regarding the positive indications of hand hygiene was 56%. Rest of the 44% of students were either not sure or unaware of the indications of hygiene. Only 29% of students were able to identify all the five indications for hand hygiene in the questionnaire. Compliance as assessed during OSCE sessions was only 17% with no significant difference between the genders. Conclusion. It was concluded that serious efforts are needed to improve the hand hygiene practices among medical students.

  20. Florid reactive periostitis of the hands.

    Science.gov (United States)

    Jambhekar, Nirmala A; Desai, Saral S; Puri, Ajay; Agarwal, Manish

    2004-11-01

    Reactive periostitis of the hand can be a confounding lesion on both radiological and histological grounds. An erroneous diagnosis of a malignant tumor, particularly an osteosarcoma, is a possibility. Two cases of florid reactive periostitis of the hand mistaken for osteosarcoma are reported here to illustrate this entity and caution against a diagnostic pitfall.

  1. Florid reactive periostitis of the hands

    Energy Technology Data Exchange (ETDEWEB)

    Jambhekar, Nirmala A.; Desai, Saral S. [Tata Memorial Hospital, Department of Pathology, Mumbai, Maharashtra (India); Puri, Ajay; Agarwal, Manish [Tata Memorial Hospital, Department of Orthopedics, Mumbai, Maharashtra (India)

    2004-11-01

    Reactive periostitis of the hand can be a confounding lesion on both radiological and histological grounds. An erroneous diagnosis of a malignant tumor, particularly an osteosarcoma, is a possibility. Two cases of florid reactive periostitis of the hand mistaken for osteosarcoma are reported here to illustrate this entity and caution against a diagnostic pitfall. (orig.)

  2. Hand-Clap Songs across the Curriculum

    Science.gov (United States)

    Batchelor, Katherine E.; Bintz, William P.

    2012-01-01

    This teaching tip focuses on using hand-clapping to teach content area material across the curriculum. We begin with a brief history of hand-clap songs, followed by a rationale for using them in content area literacy. Then, we describe the instructional lesson, share samples that resulted, and discuss lesson extensions. Our goal is to have…

  3. Rubber hand illusion affects joint angle perception.

    Directory of Open Access Journals (Sweden)

    Martin V Butz

    Full Text Available The Rubber Hand Illusion (RHI is a well-established experimental paradigm. It has been shown that the RHI can affect hand location estimates, arm and hand motion towards goals, the subjective visual appearance of the own hand, and the feeling of body ownership. Several studies also indicate that the peri-hand space is partially remapped around the rubber hand. Nonetheless, the question remains if and to what extent the RHI can affect the perception of other body parts. In this study we ask if the RHI can alter the perception of the elbow joint. Participants had to adjust an angular representation on a screen according to their proprioceptive perception of their own elbow joint angle. The results show that the RHI does indeed alter the elbow joint estimation, increasing the agreement with the position and orientation of the artificial hand. Thus, the results show that the brain does not only adjust the perception of the hand in body-relative space, but it also modifies the perception of other body parts. In conclusion, we propose that the brain continuously strives to maintain a consistent internal body image and that this image can be influenced by the available sensory information sources, which are mediated and mapped onto each other by means of a postural, kinematic body model.

  4. The Hot Hand Belief and Framing Effects

    Science.gov (United States)

    MacMahon, Clare; Köppen, Jörn; Raab, Markus

    2014-01-01

    Purpose: Recent evidence of the hot hand in sport--where success breeds success in a positive recency of successful shots, for instance--indicates that this pattern does not actually exist. Yet the belief persists. We used 2 studies to explore the effects of framing on the hot hand belief in sport. We looked at the effect of sport experience and…

  5. Illness representations in patients with hand injury.

    LENUS (Irish Health Repository)

    Chan, Jeffrey C Y

    2009-07-01

    Differences in illness perception about hand injury may partly explain the variation in health behaviours such as adherence to post-operative therapy, coping strategy, emotional response and eventual clinical outcome. This study examined the illness perception of patients with hand injuries in the acute trauma setting.

  6. Emotions affect the recognition of hand postures

    Directory of Open Access Journals (Sweden)

    Carmelo Mario Vicario

    2013-12-01

    Full Text Available The body is closely tied to the processing of social and emotional information. The purpose of this study was to determine whether a relationship between emotions and social attitudes conveyed through gestures exists. Thus we tested the effect of pro-social (i.e. happy face and anti-social (i.e. angry face emotional primes on the ability to detect socially relevant handpostures (i.e. pictures depicting an open/closed hand. In particular, participants were required to establish, as quickly as possible, if the test stimulus (i.e. a hand posture was the same or different, compared to the reference stimulus (i.e. a hand posture previously displayed in the computer screen. Results show that facial primes, displayed between the reference and the test stimuli, influence the recognition of hand postures, according to the social attitude implicitly related to the stimulus. We found that perception of pro-social (i.e. happy face primes resulted in slower RTs in detecting the open hand posture as compared to the closed hand posture. Vice-versa, perception of the anti-social (i.e. angry face prime resulted in slower RTs in detecting the closed hand posture compared to the open hand posture. These results suggest that the social attitude implicitly suggested by the displayed stimuli might represent the conceptual link between emotions and gestures.

  7. 29 CFR 1915.133 - Hand tools.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Hand tools. 1915.133 Section 1915.133 Labor Regulations...) OCCUPATIONAL SAFETY AND HEALTH STANDARDS FOR SHIPYARD EMPLOYMENT Tools and Related Equipment § 1915.133 Hand tools. The provisions of this section shall apply to ship repairing, shipbuilding and shipbreaking....

  8. Surgical hand hygiene: scrub or rub?

    Science.gov (United States)

    Widmer, A F

    2013-02-01

    Surgical hand hygiene is standard care prior to any surgical procedure. Per-operative glove punctures are observed in almost 30% of all interventions, and a risk factor for postoperative infections. In the past, washing hands with antimicrobial soap and water (surgical scrub) was the norm, mainly with chlorhexidine or iodine. More recently, alcohol-based hand rub has been successfully introduced, showing greater effectiveness, less irritation to the hands, and requiring less time than washing hands. All products should have a remnant effect that delays microbial growth under the gloved hand. Some of the alcohol-based compounds are effective (as determined by the European Norm EN 12791) within 90 s whereas others require 3-5 min, similar to the scrub. The short procedure relies heavily on proper technique and timing, since lowering the exposure time to surgical hand hygiene should meet EN 12791 in Europe, or other standards, such as the US Food and Drug Administration tentative final monograph norm in the USA. It is best performed by using an alcohol-based hand rub, but a scrub with chlorhexidine-containing soap also meets these standards.

  9. The Left-Handed: "Their Sinister" History.

    Science.gov (United States)

    Costas, Elaine Fowler

    The history of left-handedness can provide teachers and parents a better understanding of left-handed children and give those children more pride in their difference. No child should be made to feel that he or she is abnormal because of using the left hand, although some specific instruction for these students is necessary in handwriting. Many…

  10. Left-handed Children in Singapore.

    Science.gov (United States)

    Gan, Linda

    1998-01-01

    Used teacher questionnaires to examine incidence of left-handedness in nearly 2,800 Singaporean children, racial differences in this left-handed population, and educational provisions in preschool and primary school. Findings indicated that 7.5% of preschoolers and 6.3% of primary children were left-handed, with a higher proportion being Chinese…

  11. The hand eczema severity index (HECSI)

    DEFF Research Database (Denmark)

    Held, E; Skoet, R; Johansen, J D

    2005-01-01

    BACKGROUND: There is a need for a standardized clinical grading system for a more objective and accurate assessment of the severity of hand eczema (HE). OBJECTIVES: To develop and validate a scoring system called the hand eczema severity index (HECSI) designed for clinical assessment of HE. METHODS...

  12. Clean Hands Help Prevent the Flu

    Centers for Disease Control (CDC) Podcasts

    2009-05-06

    Clean hands can help prevent the spread of infectious diseases, such as flu. This podcast explains the proper way to wash your hands.  Created: 5/6/2009 by Coordinating Center for Infectious Diseases, National Center for Immunization and Respiratory Diseases, Influenza Division (CCID/NCIRD/ID).   Date Released: 5/6/2009.

  13. Right-handed neutrino magnetic moments

    CERN Document Server

    Aparici, Alberto; Santamaria, Arcadi; Wudka, Jose

    2009-01-01

    We discuss the phenomenology of the most general effective Lagrangian, up to operators of dimension 5, build with standard model fields and interactions including right-handed neutrinos. In particular we find there is a dimension 5 electroweak moment operator of right-handed neutrinos, not discussed previously in the literature, which could have interesting phenomenological consequences.

  14. Artificial, parallel, left-handed DNA helices.

    Science.gov (United States)

    Tian, Cheng; Zhang, Chuan; Li, Xiang; Li, Yingmei; Wang, Guansong; Mao, Chengde

    2012-12-19

    This communication reports an engineered DNA architecture. It contains multiple domains of half-turn-long, standard B-DNA duplexes. While each helical domain is right-handed and its two component strands are antiparallel, the global architecture is left-handed and the two component DNA strands are oriented parallel to each other.

  15. Efficiency of voluntary opening hand and hook prosthetic devices: 24 years of development?

    Science.gov (United States)

    Smit, Gerwin; Bongers, Raoul M; Van der Sluis, Corry K; Plettenburg, Dick H

    2012-01-01

    Quantitative data on the mechanical performance of upper-limb prostheses are very important in prostheses development and selection. The primary goal of this study was to objectively evaluate the mechanical performance of adult-size voluntary opening (VO) prosthetic terminal devices and select the best tested device. A second goal was to see whether VO devices have improved in the last two decades. Nine devices (four hooks and five hands) were quantitatively tested (Hosmer model 5XA hook, Hosmer Sierra 2 Load VO hook, RSL Steeper Carbon Gripper, Otto Bock model 10A60 hook, Becker Imperial hand, Hosmer Sierra VO hand, Hosmer Soft VO hand, RSL Steeper VO hand, Otto Bock VO hand). We measured the pinch forces, activation forces, cable displacements, mass, and opening span and calculated the work and hysteresis. We compared the results with data from 1987. Hooks required lower activation forces and delivered higher pinch forces than hands. The activation forces of several devices were very high. The pinch forces of all tested hands were too low. The Hosmer model 5XA hook with three bands was the best tested hook. The Hosmer Sierra VO hand was the best tested hand. We found no improvements in VO devices compared with the data from 1987.

  16. A portable rehabilitation device for the Hand.

    Science.gov (United States)

    Iqbal, Jamshed; Tsagarakis, Nikos G; Fiorilla, Angelo E; Caldwell, Darwin G

    2010-01-01

    This paper presents the design of a direct driven under-actuated portable hand exoskeleton for rehabilitation. The design of the proposed Hand EXOskeleton SYStem (HEXOSYS) was driven by multi-objective optimisation strategy and inspiration from the human hand. The optimisation algorithm resulted in the choice of optimum link lengths of the device. The optimisation criteria are based on dexterity, isotropy and exertion of perpendicular forces on the finger digits. Furthermore, a series of experiments on the human hand using appropriate sensory instrumentation guided the selection of actuators thereby resulting in a rehabilitation device which is compatible with the human hand force capabilities. The provision of force as well as position feedback gives quantitative feedback to the therapist and would imply a more efficient rehabilitation process. The first prototype of the device has been designed and realized.

  17. [Suicide with a manipulated hand grenade].

    Science.gov (United States)

    Preuss-Wössner, Johanna; Kroll, Jürgen

    2010-01-01

    Explosion injuries in civilians are rare. An uncommon case of suicide with a manipulated hand grenade is presented. The findings at the scene and on the body (i.a. massive soot blackening of the skin, singeing, size and number of splinters) gave reason to doubt the use of trinitrotoluene (TNT), the usual explosive charge in hand grenades. Further investigations showed that parts of several hand grenades and black powder from standard fire-crackers commercially available without legal restriction had been used as propelling charge. The victim, who was in a sitting position, held the hand grenade in the left hand and triggered it with the right. He bled to death due to a fracture of the right femur and lacerations of the liver. The chronological course and total circumstances of the case suggested suicide in a strongly intoxicated condition (BAC 2.5 per mille). In the flat, a larger number of unlicensed weapons and weapon parts were found.

  18. Air Muscle Actuated Low Cost Humanoid Hand

    Directory of Open Access Journals (Sweden)

    Peter Scarfe

    2006-06-01

    Full Text Available The control of humanoid robot hands has historically been expensive due to the cost of precision actuators. This paper presents the design and implementation of a low-cost air muscle actuated humanoid hand developed at Curtin University of Technology. This hand offers 10 individually controllable degrees of freedom ranging from the elbow to the fingers, with overall control handled through a computer GUI. The hand is actuated through 20 McKibben-style air muscles, each supplied by a pneumatic pressure-balancing valve that allows for proportional control to be achieved with simple and inexpensive components. The hand was successfully able to perform a number of human-equivalent tasks, such as grasping and relocating objects.

  19. 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 hands...

  20. Pathways to clean hands: highlights of successful hand hygiene implementation strategies in Europe.

    Science.gov (United States)

    Magiorakos, A P; Leens, E; Drouvot, V; May-Michelangeli, L; Reichardt, C; Gastmeier, P; Wilson, K; Tannahill, M; McFarlane, E; Simon, A

    2010-05-06

    Hand hygiene is the most effective way to stop the spread of microorganisms and to prevent healthcare-associated infections (HAI). The World Health Organization launched the First Global Patient Safety Challenge - Clean Care is Safer Care - in 2005 with the goal to prevent HAI globally. This year, on 5 May, the WHO s initiative SAVE LIVES: Clean Your Hands, which focuses on increasing awareness of and improving compliance with hand hygiene practices, celebrated its second global day. In this article, four Member States of the European Union describe strategies that were implemented as part of their national hand hygiene campaigns and were found to be noteworthy. The strategies were: governmental support, the use of indicators for hand hygiene benchmarking, developing national surveillance systems for auditing alcohol-based hand rub consumption, ensuring seamless coordination of processes between health regions in countries with regionalised healthcare systems, implementing the WHO's My Five Moments for Hand Hygiene, and auditing of hand hygiene compliance.

  1. Hand eczema guidelines based on the Danish guidelines for the diagnosis and treatment of hand eczema

    DEFF Research Database (Denmark)

    Menné, Torkil; Johansen, Jeanne D; Sommerlund, Mette

    2011-01-01

    Background. Classification of hand eczema has traditionally been based both on aetiology and clinical appearance. For 20% of cases, the aetiology is unknown. Objectives. To suggest a classification based on well-defined aetiology as well as on predefined clinical patterns and on the dynamics...... of hand eczema. Methods. Literature studies and discussions among members of the Danish Contact Dermatitis Group. Results. Criteria are given for the aetiological diagnoses of allergic contact dermatitis of the hands, irritant contact dermatitis of the hands, protein contact dermatitis of the hands......, atopic hand eczema and aetiologically unclassifiable hand eczema. Six different clinical patterns are described and illustrated. Suggestions for general treatment principles are given. Conclusion. Operational guidelines for the diagnosis and treatment of hand eczema are described....

  2. Comparing hand washing to hand sanitizers in reducing elementary school students' absenteeism.

    Science.gov (United States)

    Vessey, Judith A; Sherwood, Jessie J; Warner, Dorothy; Clark, Diane

    2007-01-01

    To compare the efficacy of an alcohol-based hand sanitizer to standard hand washing in reducing illness and subsequent absenteeism in school-age children. A randomized cross-over design was used with 18 classrooms of 2nd and 3rd grade students (n = 383) from 4 elementary schools. Half of the classes from each school used an anti-microbial gel hand sanitizer while the other half used soap and water for regular hand hygiene for 2 months, then, the students switched cleaning methods for the following 2 months. No significant differences in absenteeism rates were demonstrated. A follow-up focus group comprised of teachers and school nurses indicated that hand sanitizers were preferred over soap and water. Hand sanitizers are an appropriate alternative to hand washing for hand cleansing and may offer additional benefits in the school setting.

  3. 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.

  4. Hand Functioning in Children with Cerebral Palsy

    Science.gov (United States)

    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 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 esthesiometer), stereognosis (Manual Form Perception Test), proprioception (passive mobilization of the metacarpophalangeal joints), grip strength (GS) (Jamar dynamometer), gross manual dexterity (GMD) (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, GMD in both hands and stereognosis in the dominant hand were directly related to MA, whereas GS was indirectly related to MA through its relationship with GMD. 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. PMID:24782821

  5. Programming of left hand exploits task set but that of right hand depends on recent history.

    Science.gov (United States)

    Tang, Rixin; Zhu, Hong

    2017-07-01

    There are many differences between the left hand and the right hand. But it is not clear if there is a difference in programming between left hand and right hand when the hands perform the same movement. In current study, we carried out two experiments to investigate whether the programming of two hands was equivalent or they exploited different strategies. In the first experiment, participants were required to use one hand to grasp an object with visual feedback or to point to the center of one object without visual feedback on alternate trials, or to grasp an object without visual feedback and to point the center of one object with visual feedback on alternating trials. They then performed the tasks with the other hand. The result was that previous pointing task affected current grasping when it was performed by the left hand, but not the right hand. In experiment 2, we studied if the programming of the left (or right) hand would be affected by the pointing task performed on the previous trial not only by the same hand, but also by the right (or left) hand. Participants pointed and grasped the objects alternately with two hands. The result was similar with Experiment 1, i.e., left-hand grasping was affected by right-hand pointing, whereas right-hand grasping was immune from the interference from left hand. Taken together, the results suggest that when open- and closed-loop trials are interleaved, motor programming of grasping with the right hand was affected by the nature of the online feedback on the previous trial only if it was a grasping trial, suggesting that the trial-to-trial transfer depends on sensorimotor memory and not on task set. In contrast, motor programming of grasping with the left hand can use information about the nature of the online feedback on the previous trial to specify the parameters of the movement, even when the type of movement that occurred was quite different (i.e., pointing) and was performed with the right hand. This suggests that

  6. Effectiveness of Hand Sanitizers with and without Organic Acids for Removal of Rhinovirus from Hands

    Science.gov (United States)

    Turner, Ronald B.; Fuls, Janice L.; Rodgers, Nancy D.

    2010-01-01

    These studies evaluated the effectiveness of ethanol hand sanitizers with or without organic acids to remove detectable rhinovirus from the hands and prevent experimental rhinovirus infection. Ethanol hand sanitizers were significantly more effective than hand washing with soap and water. The addition of organic acids to the ethanol provided residual virucidal activity that persisted for at least 4 h. Whether these treatments will reduce rhinovirus infection in the natural setting remains to be determined. PMID:20047916

  7. Effectiveness of hand sanitizers with and without organic acids for removal of rhinovirus from hands.

    Science.gov (United States)

    Turner, Ronald B; Fuls, Janice L; Rodgers, Nancy D

    2010-03-01

    These studies evaluated the effectiveness of ethanol hand sanitizers with or without organic acids to remove detectable rhinovirus from the hands and prevent experimental rhinovirus infection. Ethanol hand sanitizers were significantly more effective than hand washing with soap and water. The addition of organic acids to the ethanol provided residual virucidal activity that persisted for at least 4 h. Whether these treatments will reduce rhinovirus infection in the natural setting remains to be determined.

  8. "Take time. Save lives. Clean hands protect." A comparison of two hand hygiene health promotion posters.

    Science.gov (United States)

    Mackert, Michael; Lazard, Allison; Champlin, Sara; Liang, Ming-Ching; Mabry, Amanda; Stroever, Stephanie; Guadagno, Marie; Watkins, Lynda

    2014-05-01

    Two posters were designed to encourage hospital staff hand hygiene. One focused on broad benefits of hand hygiene to patients and staff, and the other highlighted hand hygiene as a long-known measure to infection control. The former was better received in terms of attention, likability, and potential to promote hand hygiene. A third-person effect, the perception of stronger impact of communication messages on others, was observed. Implications on health promotion message design were discussed.

  9. Communicative hand gestures and object-directed hand movements activated the mirror neuron system

    OpenAIRE

    Montgomery, Kimberly J.; Isenberg, Nancy; Haxby, James V.

    2007-01-01

    Humans produce hand movements to manipulate objects, but also make hand movements to convey socially relevant information to one another. The mirror neuron system (MNS) is activated during the observation and execution of actions. Previous neuroimaging experiments have identified the inferior parietal lobule (IPL) and frontal operculum as parts of the human MNS. Although experiments have suggested that object-directed hand movements drive the MNS, it is not clear whether communicative hand ge...

  10. Hand-eye calibration using dual quaternions in medical environment

    Science.gov (United States)

    Briese, Danilo; Niebler, Christine; Rose, Georg

    2014-03-01

    Nowadays medical interventions are often supported by localization systems using different measurement tools (MT). This requires to register the MT coordinate sytem to the world coordinate system used by the medical device. The hand-eye calibration is a well-known method from robotics to estimate the transformation between the gripper of a robot (hand) and a MT (eye) rigidly attached to the robot. Using a calibration tool (e.g. checker board) one can obtain the hand-eye transformation using known relative movements of the robot and the data from the MT. The approach can also be used for MT located elsewhere * using markers on the device. The position of the markers is not required to be known since they are rigid during the motions. Based on prior work using dual quaternions to represent transformations in the SE(3) we not only took into account movements between immediate neighbour positions Pi and Pj , but combined all positions to gain (P/2) submotions in every subset Σ p/n=3 (p/n) t without increasing the number of positions conducted during the calibration. We took into account the unity constraint for dual quaternions since only those represent rigid motions in space. We performed simulations that show the advantage of our algorithm. Additionally we gained experimental data which supported the outcome of the simulations. We can outline that our approach achieves more accurate results estimating the hand-eye transformation than the aforementioned algorithms.

  11. Vibration and impulsivity analysis of hand held olive beaters.

    Science.gov (United States)

    Deboli, Roberto; Calvo, Angela; Preti, Christian

    2016-07-01

    To provide more effective evaluations of hand arm vibration syndromes caused by hand held olive beaters, this study focused on two aspects: the acceleration measured at the tool pole and the analysis of the impulsivity, using the crest factor. The signals were frequency weighted using the weighting curve Wh as described in the ISO 5349-1 standard. The same source signals were also filtered by the Wh-bl filter (ISO/TS 15694), because the weighting filter Wh (unlike the Wh-bl filter) could underestimate the effect of high frequency vibration on vibration-induced finger disorders. Ten (experienced) male operators used three beater models (battery powered) in the real olive harvesting condition. High vibration total values were obtained with values never lower than 20 m(-2). Concerning the crest factor, the values ranged from 5 to more than 22. This work demonstrated that the hand held olive beaters produced high impulsive loads comparable to the industry hand held tools.

  12. The Geriatric Hand: Correlation of Hand-Muscle Function and Activity Restriction in Elderly

    Science.gov (United States)

    Incel, Nurgul Arinci; Sezgin, Melek; As, Ismet; Cimen, Ozlem Bolgen; Sahin, Gunsah

    2009-01-01

    On the basis of the importance of hand manipulation in activities of daily living (ADL), deterioration of hand function because of various factors reduces quality and independence of life of the geriatric population. The aim of this study was to identify age-induced changes in manual function and to quantify the correlations between hand-muscle…

  13. The Effect of Antibacterial Formula Hand Cleaners on the Elimination of Microbes on Hands

    Science.gov (United States)

    Coleman, J. R.

    2002-05-01

    : The purpose of this project is to find out which one of the antibacterial hand cleanser (antibacterial bar soap, antibacterial liquid hand soap, and liquid hand sanitizer) is more effective in eliminating microbes. If antibacterial- formula liquid hand soap is used on soiled hands, then it will be more effective in eliminating microbes. Germs are microorganisms that cause disease and can spread from person-to-person. Bacteria are a kind of microbe, an example of which is Transient Flora that is often found on hands. Hand washing prevents germs from spreading to others. During the procedure, swabs were used to take samples before and after the soiled hands had been washed with one of the antibacterial hand cleansers. Nutrient Easygel was poured into petri dishes to harden for 1 day, and then samples were swabbed on the gel. The Petri dishes were placed in an incubator for 24 hours, and then data was recorded accordingly. The antibacterial liquid hand soap was sufficient in eliminating the majority of bacteria. The hands had 65% of the bacteria on them, and after the liquid hand soap was used only 37% of the bacteria remained.

  14. Hand Preference and Skill in 115 Children of Two Left-Handed Parents.

    Science.gov (United States)

    Annett, Marian

    1983-01-01

    Studied hand skill and performance in children (N=115) of left-handed parents using peg moving tasks and soccer kicks. Concluded that being raised by two left-handed parents does little to hinder the expression of the rs plus gene. Correlations for handedness in families depend more on genetics than experience. (Author/JAC)

  15. Hand Preference and Skill in 115 Children of Two Left-Handed Parents.

    Science.gov (United States)

    Annett, Marian

    1983-01-01

    Studied hand skill and performance in children (N=115) of left-handed parents using peg moving tasks and soccer kicks. Concluded that being raised by two left-handed parents does little to hinder the expression of the rs plus gene. Correlations for handedness in families depend more on genetics than experience. (Author/JAC)

  16. Stigmatization of repetitive hand use in newspaper reports of hand illness.

    Science.gov (United States)

    Anthony, Shawn; Lozano-Calderon, Santiago; Ring, David

    2008-03-01

    Failure to provide a balanced evidence-based consideration of the role of activity in illness can stigmatize individuals and their activities. We assessed the prevalence of language that stigmatized repetitive hand use and those that use their hand repetitively in newspaper coverage of common hand illnesses. The LexisNexis Academic database was used to search five major US newspapers for articles containing keywords about common hand illnesses during a 3-year period. Article language was assessed for stigmatization of activities involving repetitive hand use as well as for stigmatization of patients who use their hand repetitively. One hundred and twenty-four articles on hand illnesses were identified. Of these, 65.3% of articles stigmatized activities involving repetitive hand use, including 96.6% of articles discussing overuse injury of the hand, 90% of articles discussing tendonitis or tenosynovitis, and 51.8% of articles discussing carpal tunnel syndrome. Patient stigmatization was documented in 30.6% of the newspaper articles. Stigmatizing statements were most commonly made by journalists (94.8%), followed by patients (3.1%), and physicians (2.1%). Language that stigmatizes repetitive hand use and patients who use their hand repetitively is prevalent among US newspaper articles. Both health professionals and journalists reporting health-related news should be more sensitive to the use of stigmatizing language and provide a more balanced, measured, and evidenced-based account of hand illnesses.

  17. The i-LIMB hand and the DMC plus hand compared : A case report

    NARCIS (Netherlands)

    Niet Van Der, Olga; Reinders-Messelink, Heleen A.; Bongers, Raoul M.; Bouwsema, Hanneke; Van Der Sluis, Corry K.; Otr, O.V.

    2010-01-01

    The i-LIMB hand is a novel upper limb myoelectric prosthetic hand with several joints in the fingers and thumb. This study aimed to determine whether this new device had more functionality than a more conventional myoelectric prosthetic hand with only a single joint between the thumb and two fingers

  18. Performance and Quality of Working Life

    NARCIS (Netherlands)

    H.D. Pruijt (Hans)

    2000-01-01

    textabstractAn examination of the deep structure of the discourse on the organization of work shows that the most successful texts share a common structure: they construct an ideal model in which performance and quality go hand in hand. They provide explanations for the self-constructed gap between

  19. Ecological Engineering and Civil Engineering works

    NARCIS (Netherlands)

    Van Bohemen, H.D.

    2004-01-01

    This thesis provides a survey of the research results of the relationship between on the one hand the construction, management and maintenance of civil engineering works, and on the other hand the environment, nature and landscape, with the main focus on motorways and coastal protection. The growing

  20. Ecological Engineering and Civil Engineering works

    NARCIS (Netherlands)

    Van Bohemen, H.D.

    2004-01-01

    This thesis provides a survey of the research results of the relationship between on the one hand the construction, management and maintenance of civil engineering works, and on the other hand the environment, nature and landscape, with the main focus on motorways and coastal protection. The growing

  1. An Introduction to Bibliographical Press Work.

    Science.gov (United States)

    Richardson, John V., Jr.

    This guide to the literature of bibliographical press work is comprised of brief introductory notes on the field and this bibliography, followed by citations listed in seven categories: (1) book production, (2) handmade paper, (3) printer's ink, (4) type design, (5) book design, (6) hand printing, and (7) hand bookbinding. Introductory as well as…

  2. The epidemiology of hand eczema in the general population--prevalence and main findings.

    Science.gov (United States)

    Thyssen, Jacob P; Johansen, Jeanne D; Linneberg, Allan; Menné, Torkil

    2010-02-01

    Numerous studies have investigated the prevalence and risk factors of hand eczema in the general population. These studies are of high value as they tend to be less biased than studies using clinical populations and as they are important for healthcare decision makers when they allocate resources. This study aimed to review the epidemiology of hand eczema in the general population. Literature was examined using Pubmed-Medline, Biosis, Science Citation Index, and dermatology text books. On the basis of studies performed between 1964 and 2007, the point prevalence of hand eczema was around 4%, the 1-year prevalence nearly 10%, whereas the lifetime prevalence reached 15%. Based on seven studies, the median incidence rate of hand eczema was 5.5 cases/1000 person-years (women = 9.6 and men = 4.0). A high incidence rate was associated with female sex, contact allergy, atopic dermatitis, and wet work. Atopic dermatitis was the single most important risk factor for hand eczema. Hand eczema resulted in medical consultations in 70%, sick leave (> 7 days) in about 20%, and job change in about 10%. Mean sick time was longer among those with allergic hand eczema than those with atopic and irritant hand eczema. Moderate to severe extension of hand eczema was the strongest risk factor for persistence of hand eczema. Other risk factors included early onset of hand eczema and childhood eczema. The aetiology of hand eczema is multifactorial and includes environmental as well as genetic factors. Future studies should focus on unresolved areas of hand eczema, for example, genetic predisposition.

  3. A moving robotic hand system for whole-glove permeation and penetration: captan and nitrile gloves.

    Science.gov (United States)

    Phalen, Robert; Hee, Shane Que

    2008-04-01

    The aim of this study was to develop a robotic hand to test the influence of hand movement on the permeation/penetration of captan through disposable nitrile rubber gloves. An available robotic hand was modified to within one standard deviation of the anthropometric 50th percentile male hand. Permeation tests used a nylon inspection glove interposed between medium-size outer and inner nitrile gloves, the latter protected the hand. Permeation of an aqueous emulsion (217 mg/mL) of captan was conducted at 35 degrees C +/- 0.7 degrees C. A new surface wipe technique facilitated collection of captan from the inner surface of the exposed nitrile gloves, a technique favored above rinse methods that extracted captan from within the glove. With hand movement, the permeated mass of captan collected after 8 hr ranged from 1.6 to 970 microg (Brand A) and 8.6 +/- 1.2 microg (Brand B). Without hand movement, the corresponding masses ranged from 1.4 to 8.4 microg (Brand A) and 11 +/- 3 mg (Brand B). These results were not significantly different at p captan with no movement. Hand movement did not appear to significantly affect the permeation of captan through nitrile gloves. However, hand movement did influence physical and/or chemical degradation, resulting in glove failures. The robotic hand simulated normal hand motions, was reliable, and could be used to assess the influence of hand movement on the permeation of nonvolatile components through gloves. Future research should continue to investigate the influence of hand movement and additional work factors on the permeation, penetration, and physical integrity of protective gloves.

  4. Hand dominance and hand use behaviour reported in a survey of 2437 Koreans.

    Science.gov (United States)

    Jung, Hwa S; Jung, Hyung-Shik

    2009-11-01

    Most tools, utensils, office equipment, home appliances, clothes, medical instruments, sporting goods, weapons and public facilities are made for people who are right-handed. Many left-handed people have to endure a certain amount of inconvenience or difficulty in carrying out daily activities in such an environment. In this study, 2437 Korean male and female participants were randomly selected to collect a variety of data on hand dominance and hand preference when handling diverse products and facilities. Their responses in a questionnaire survey revealed that 5.8% were left-handed and 7.9% were ambidextrous. The younger participants who were from teens to 39 years reported higher percentages of left-handedness than those over 40 years, with those in their thirties reporting the highest proportion of left-handedness (7.3-7.6%) for both men and women. A slightly higher percentage of the male participants (5.9%) said that they were left-handed than did the female participants (5.6%). However, the percentage who were ambidextrous varied with age group, but overall there was a higher percentage of women (8.3%) than of men (7.6%). The analysis of hand use behaviour revealed that the right-handed and ambidextrous people had a tendency to use their right hands more for actions that required accuracy than those that required force. The left-handed people had a strong tendency to use their left hands more often when making a forceful action than for one that required accuracy. Derived from these results, the conclusion is that, depending on their hand dominance, people seem to use their hands differently when they handle objects or use facilities, which should be considered in the design of hand-controlled devices. Depending on which hand is the dominant one, people seem to use their hands differently when they handle objects or use facilities. The left-handed tend to use their left hands more with force-required motions than with accuracy-required motions, while

  5. Hand hygiene among health care workers

    Directory of Open Access Journals (Sweden)

    Mani Ameet

    2010-01-01

    Full Text Available Healthcare-associated infections are an important cause of morbidity and mortality among hospitalized patients worldwide. Transmission of health care associated pathogens generally occurs via the contaminated hands of health care workers. Hand hygiene has long been considered one of the most important infection control measures to prevent health care-associated infections. For generations, hand washing with soap and water has been considered a measure of personal hygiene. As early as 1822, a French pharmacist demonstrated that solutions containing chlorides of lime or soda could eradicate the foul odor associated with human corpses and that such solutions could be used as disinfectants and antiseptics. This paper provides a comprehensive review of data regarding hand washing and hand antisepsis in healthcare settings. In addition, it provides specific recommendations to uphold improved hand-hygiene practices and reduce transmission of pathogenic microorganisms to patients and personnel in healthcare settings. This article also makes recommendations and suggests the significance of hand health hygiene in infection control.

  6. [Surgical management of the adult spastic hand].

    Science.gov (United States)

    Allieu, Y

    2011-06-01

    The adult spastic hand, of varying causes, but dominated by vascular hemiplegia and brain damage, associates motor disorders and problems of tonus. The variety of forms of brain damage explains the wealth and diversity of the symptoms. These symptoms, often the most serious along with cognitive disorders, justify the expression "central neurological hand". Each case is an individual one. The effect on the hands may be unilateral or bilateral with spasticity involving the fingers/thumb/wrist. The clinical evaluation leading to a decision tree must take into account spasticity, retraction and paralysis, for each muscle. When completed by anesthetic motor blocks, spasticity and/or retraction, damage to extrinsic and/or intrinsic muscles of the fingers may be differentiated. This repeated multidisciplinary evaluation makes it possible to distinguish between "non functional hands", "functional hands" and "potentially functional hands". In the first instance, surgery can only improve the esthetic aspect or facilitate nursing. In the second instance, correcting spasticity may improve function. The treatment of spasticity is based on inhibiting spasticity (by injecting botulinum toxin or surgical motor hyponeurotisation) and reinforcing the non-spastic antagonist muscles via tendon transfer or tenodesis. Surgery is indicated to correct muscular retraction and deformities. The functional indications are highly selective and their limited results only allow a "supporting hand" to be constructed at best. The non-functional indications lead to a codified intervention whose results will greatly improve the management of these patients.

  7. Avoiding unfavorable results in postburn contracture hand

    Science.gov (United States)

    Bhattacharya, Sameek

    2013-01-01

    Deformities of the hands are a fairly common sequel of burn especially in the developing world. This is because of high incidence of burns, limited access to standard treatment and rehabilitation. The best outcome of a burnt hand is when deformities are prevented from developing. A good functional result is possible when due consideration is paid to hands during resuscitation, excisional surgery, reconstructive surgery and physiotherapy. The post-burns deformities of hand develop due direct thermal damage or secondary to intrinsic minus position due to oedema or vascular insufficiency. During the acute phase the concerns are, maintenance circulation minimize oedema prevent unphysiological positioning and wound closure with autogenous tissue as soon as possible. The rehabilitation program during the acute phase starts from day one and goes on till the hand has healed and has regained full range of motion. Full blown hand contractures are challenging to correct and become more difficult as time passes. Long-standing cases often land up with attenuation of extensor apparatus leading to swan neck and boutonniere deformity, muscle shortening and bony ankylosis. The major and most common pitfall after contracture release is relapse. The treatment protocol of contracture is solely directed towards countering this tendency. This article aims to guide a surgeon in obtaining optimal hand function and avoid pit falls at different stages of management of hand burns. The reasons of an unfavourable outcome of a burnt hand are possible lack of optimal care in the acute phase, while planning and performing reconstructive procedure and during aftercare and rehabilitation. PMID:24501479

  8. Avoiding unfavorable results in postburn contracture hand

    Directory of Open Access Journals (Sweden)

    Sameek Bhattacharya

    2013-01-01

    Full Text Available Deformities of the hands are a fairly common sequel of burn especially in the developing world. This is because of high incidence of burns, limited access to standard treatment and rehabilitation. The best outcome of a burnt hand is when deformities are prevented from developing. A good functional result is possible when due consideration is paid to hands during resuscitation, excisional surgery, reconstructive surgery and physiotherapy. The post-burns deformities of hand develop due direct thermal damage or secondary to intrinsic minus position due to oedema or vascular insufficiency. During the acute phase the concerns are, maintenance circulation minimize oedema prevent unphysiological positioning and wound closure with autogenous tissue as soon as possible. The rehabilitation program during the acute phase starts from day one and goes on till the hand has healed and has regained full range of motion. Full blown hand contractures are challenging to correct and become more difficult as time passes. Long-standing cases often land up with attenuation of extensor apparatus leading to swan neck and boutonniere deformity, muscle shortening and bony ankylosis. The major and most common pitfall after contracture release is relapse. The treatment protocol of contracture is solely directed towards countering this tendency. This article aims to guide a surgeon in obtaining optimal hand function and avoid pit falls at different stages of management of hand burns. The reasons of an unfavourable outcome of a burnt hand are possible lack of optimal care in the acute phase, while planning and performing reconstructive procedure and during aftercare and rehabilitation.

  9. 再度携手,续写新华章%Hand in Hand Again,and Write Beautiful Works

    Institute of Scientific and Technical Information of China (English)

    徐洁兰

    2008-01-01

    清华-德马吉航空制造新技术交流会暨先进制造技术交流中心第二阶段启动仪式,于2008年10月23—24日在清华大学隆重举行。清华大学精仪系、德马吉公司的领导,客户代表和媒体等100多人参加了此次大会。

  10. Management of post burn hand deformities

    Directory of Open Access Journals (Sweden)

    Sabapathy S

    2010-10-01

    Full Text Available The hand is ranked among the three most frequent sites of burns scar contracture deformity. One of the major determinants of the quality of life in burns survivors is the functionality of the hands. Burns deformities, although largely preventable, nevertheless do occur when appropriate treatment is not provided in the acute situation or when they are part of a major burns. Reconstructive procedures can greatly improve the function of the hands. Appropriate choice of procedures and timing of surgery followed by supervised physiotherapy can be a boon for a burns survivor.

  11. Preventing exposure to second-hand smoke.

    Science.gov (United States)

    Chan, Sophia; Lam, Tai Hing

    2003-11-01

    To report the effectiveness of a health education intervention provided by nurses to prevent second-hand smoke exposure in sick children in Hong Kong. A clinical trial, international and national government reports, and research studies. Exposure to second-hand smoke is associated with significant morbidity and mortality. Nursing interventions to reduce exposure are critical and need further study. Nurses are in a vital position to carry out health education about the health risks associated with second-hand smoke exposure and to protect the child from such exposure.

  12. Lead Ingestion Hazard in Hand Soldering Environments.

    Science.gov (United States)

    1984-05-01

    RD-Ai45 663 LEAD INGESTION HAZARD IN HAND SOLDERING ENVIRONMENTS i/i (U) NAVAL WEAPONS CENTER CHINA LAKE CA E R MONSALVE MAY 84 NWC-TP-6545...6545 Lead Ingestion Hazard in Hand Soldering Environments (JD CD I) by Elisabeth R. Monsalve a y- Safety and Security Department I MAY 1984 NAVAL...COVERED LEAD INGESTION HAZARD IN HAND SOLDERING ENVIRONMENTS A summary report 6. PERFORMING ONG. REPORT NUMBER 7. AUTHOR(q) I. CONTRACT O GRANT NUM6ERt

  13. Left-handed wrestlers are more successful.

    Science.gov (United States)

    Ziyagil, Mehmet Akif; Gursoy, Recep; Dane, Senol; Yuksel, Ramazan

    2010-08-01

    It has been reported that there is a high proportion of left-handers among top athletes in different sports. In this study, the goal was to examine the rate of left-handedness in the top wrestlers at the world championships for achievement by left-handed wrestlers. The rate of left-handedness was higher in wrestlers with medal honors compared to wrestlers without medals for both men and women. The winning numbers and match degrees were higher in the left-handed wrestlers than in both right- and mixed-handed wrestlers among top international wrestlers.

  14. Circuit For Control Of Electromechanical Prosthetic Hand

    Science.gov (United States)

    Bozeman, Richard J., Jr.

    1995-01-01

    Proposed circuit for control of electromechanical prosthetic hand derives electrical control signals from shoulder movements. Updated, electronic version of prosthesis, that includes two hooklike fingers actuated via cables from shoulder harness. Circuit built around favored shoulder harness, provides more dexterous movement, without incurring complexity of computer-controlled "bionic" or hydraulically actuated devices. Additional harness and potentiometer connected to similar control circuit mounted on other shoulder. Used to control stepping motor rotating hand about prosthetic wrist to one of number of angles consistent with number of digital outputs. Finger-control signals developed by circuit connected to first shoulder harness transmitted to prosthetic hand via sliprings at prosthetic wrist joint.

  15. Eye-hand preference in schizophrenia: sex differences and significance for hand function.

    Science.gov (United States)

    Liu, Yi-Chia; Yang, Yen Kuang; Lee, I Hui; Lin, Keh-Chung; Jeffries, Keith J; Lee, Li-Ching

    2004-06-01

    Hand preference and eye dominance were investigated in 73 (30 women, 43 men) schizophrenic patients and 71 (30 women, 41 men) healthy controls. There were significantly more schizophrenic patients and normal controls who were significantly right-hand dominant. However, schizophrenic patients showed a significant excess of left-eye dominance relative to controls (65.8% vs 29.6%; Odds Ratio= 4.75, peye dominance (80%) than male schizophrenic patients (55.8%) and controls (33.3%). Analysis of hand performance on the Purdue Pegboard Test indicated that schizophrenic patients who showed crossed eye-hand dominance scored higher than did patients without crossed eye-hand dominance.

  16. The expanding role of occupational therapy in the treatment of industrial hand injuries.

    Science.gov (United States)

    Bear-Lehman, J; McCormick, E

    1985-01-01

    A recent survey of members of the American Society of Hand Therapists revealed an expanding role for the therapist in the treatment of industrial hand injuries. In the traditional role of treatment provider, occupational therapists are using their assessment tools and work capacity programming to aid in predicting return to work readiness. This is aimed at preventing reinjury of the present patient population. In addition to this, therapists have begun to identify relationships between specific injuries and work that produced them. This gives rise to a specified goal of preventing the injury from ever occuring. To reach this goal therapists are becoming involved in industrial settings and are working with industrial safety teams.

  17. Comparative study of presurgical hand hygiene with hydroalcoholic solution versus traditional presurgical hand hygiene.

    Science.gov (United States)

    López Martín, M Beatriz; Erice Calvo-Sotelo, Alejo

    To compare presurgical hand hygiene with hydroalcoholic solution following the WHO protocol with traditional presurgical hand hygiene. Cultures of the hands of surgeons and surgical nurses were performed before and after presurgical hand hygiene and after removing gloves at the end of surgery. Cultures were done in 2different days: the first day after traditional presurgical hand hygiene, and the second day after presurgical hand hygiene with hydroalcoholic solution following the WHO protocol. The duration of the traditional hand hygiene was measured and compared with the duration (3min) of the WHO protocol. The cost of the products used in the traditional technique was compared with the cost of the hydroalcoholic solution used. The variability of the traditional technique was determined by observation. Following presurgical hand hygiene with hydroalcoholic solution, colony-forming units (CFU) were detected in 5 (7.3%) subjects, whereas after traditional presurgical hand hygiene CFU were detected in 14 subjects (20.5%) (p < 0.05). After glove removal, the numbers of CFU were similar. The time employed in hand hygiene with hydroalcoholic solution (3min) was inferior to the time employed in the traditional technique (p < 0.05), its cost was less than half, and there was no variability. Compared with other techniques, presurgical hand hygiene with hydroalcoholic solution significantly decreases CFU, has similar latency time, a lower cost, and saves time. Copyright © 2017 Elsevier España, S.L.U. All rights reserved.

  18. Are there excitability changes in the hand motor cortex during speech in left-handed subjects?

    Science.gov (United States)

    Tokimura, Hiroshi; Tokimura, Yoshika; Arita, Kazunori

    2012-01-01

    Hemispheric dominance was investigated in left-handed subjects using single transcranial magnetic stimulation to assess the possible effect of forced change in the dominant hand. Single transcranial magnetic stimuli were delivered randomly over the hand area of the left or right motor cortex of 8 Japanese self-declared left-handed adult volunteers. Electromyographic responses were recorded in the relaxed first dorsal interosseous muscle while the subjects read aloud. Laterality quotient calculated by the Edinburgh Inventory ranged from -100 to -5.26 and laterality index calculated from motor evoked potentials ranged from -86.2 to 38.8. There was no significant correlation between laterality quotient and laterality index. Mean data values across all 8 subjects indicated significant increases only in the left hand. Our ratio analysis of facilitation of the hand motor potentials showed that 2 each of the 8 self-declared left-handers were right- and left-hand dominant and the other 4 were bilateral-hand dominant. Speech dominancy was localized primarily in the right cerebral hemisphere in left-handed subjects, but some individuals exhibited bilateral or left dominance, possibly attributable to the forced change of hand preference for writing in childhood. Our findings suggest changes in the connections between the speech and hand motor areas.

  19. The Hand Burn Severity (HABS) score: A simple tool for stratifying severity of hand burns.

    Science.gov (United States)

    Bache, Sarah E; Fitzgerald O'Connor, Edmund; Theodorakopoulou, Evgenia; Frew, Quentin; Philp, Bruce; Dziewulski, Peter

    2017-02-01

    Hand burns represent a unique challenge to the burns team due to the intricate structure and unrivalled functional importance of the hand. The initial assessment and prognosis relies on consideration of the specific site involved as well as depth of the burn. We created a simple severity score that could be used by referring non-specialists and researchers alike. The Hand Burn Severity (HABS) score stratifies hand burns according to severity with a numerical value of between 0 (no burn) and 18 (most severe) per hand. Three independent assessors scored the photographs of 121 burned hands of 106 adult and paediatric patients, demonstrating excellent inter-rater reliability (r=0.91, pburn depth alone. The HABS score is a simple to use tool to stratify severity at initial presentation of hand burns which will be useful when referring, and when reporting outcomes. Copyright © 2016 Elsevier Ltd and ISBI. All rights reserved.

  20. Constraint Study for a Hand Exoskeleton: Human Hand Kinematics and Dynamics

    Directory of Open Access Journals (Sweden)

    Fai Chen Chen

    2013-01-01

    Full Text Available In the last few years, the number of projects studying the human hand from the robotic point of view has increased rapidly, due to the growing interest in academic and industrial applications. Nevertheless, the complexity of the human hand given its large number of degrees of freedom (DoF within a significantly reduced space requires an exhaustive analysis, before proposing any applications. The aim of this paper is to provide a complete summary of the kinematic and dynamic characteristics of the human hand as a preliminary step towards the development of hand devices such as prosthetic/robotic hands and exoskeletons imitating the human hand shape and functionality. A collection of data and constraints relevant to hand movements is presented, and the direct and inverse kinematics are solved for all the fingers as well as the dynamics; anthropometric data and dynamics equations allow performing simulations to understand the behavior of the finger.

  1. OARSI Clinical Trials Recommendations: Design and conduct of clinical trials for hand osteoarthritis.

    Science.gov (United States)

    Kloppenburg, M; Maheu, E; Kraus, V B; Cicuttini, F; Doherty, M; Dreiser, R-L; Henrotin, Y; Jiang, G-L; Mandl, L; Martel-Pelletier, J; Nelson, A E; Neogi, T; Pelletier, J-P; Punzi, L; Ramonda, R; Simon, L S; Wang, S

    2015-05-01

    Hand osteoarthritis (OA) is a very frequent disease, but yet understudied. However, a lot of works have been published in the past 10 years, and much has been done to better understand its clinical course and structural progression. Despite this new knowledge, few therapeutic trials have been conducted in hand OA. The last OARSI recommendations for the conduct of clinical trials in hand OA dates back to 2006. The present recommendations aimed at updating previous recommendations, by incorporating new data. The purpose of this expert opinion, consensus driven exercise is to provide evidence-based guidance on the design, execution and analysis of clinical trials in hand OA, where published evidence is available, supplemented by expert opinion, where evidence is lacking, to perform clinical trials in hand OA, both for symptom and for structure-modification. They indicate core outcome measurement sets for studies in hand OA, and list the methods and instruments that should be used to measure symptoms or structure. For both symptom- and structure-modification, at least pain, physical function, patient global assessment, HR-QoL, joint activity and hand strength should be assessed. In addition, for structure-modification trials, structural progression should be measured by radiographic changes. We also provide a research agenda listing many unsolved issues that seem to most urgently need to be addressed from the perspective of performing "good" clinical trials in hand OA. These updated OARSI recommendations should allow for better standardizing the conduct of clinical trials in hand OA in the next future.

  2. Observance of hand washing procedures performed by the medical personnel before patient contact. Part I

    Directory of Open Access Journals (Sweden)

    Anna Garus-Pakowska

    2013-02-01

    Full Text Available Introduction: According to the Centers for Disease Control and Prevention (CDC as well as the World Health Organization (WHO recommendations, medical staff are obliged to decontaminate the skin of the hands before every single patient contact. Materials and Methods: The study was performed by quasi-observation among the group of 188 medical staff (nurses and physicians working in three selected hospitals of the Łódź province. The procedure of hand washing and disinfection performed directly before the patient contact according to the CDC and WHO recommendations were observed. The results was subject to statistical analysis (p < 0.05. Results: During 1544 hours of observation 4101 activities requiring hand washing were recorded. The medical staff obeyed the hand washing procedure before the patient contact only in 5.2% of the situations. There was no activity observed before which hand hygiene was maintained in 100% of cases. Observance of hand hygiene depended signifi cantly on the type of the performed activity, the professional group, and the workload index. A decrease in percentage observance of hand hygiene according to the time of the day was found to be of statistical signifi cance. The mean time of hand washing was 8.5 s for physicians and 6.6 s for nurses. Conclusion: The level of observance of hand washing procedures among the medical staff prior to the patient contact appears to be alarmingly below the expectations.

  3. The effect of residency and fellowship type on hand surgery clinical practice patterns.

    Science.gov (United States)

    Mehta, Karan; Pierce, Paul; Chiu, David T W; Thanik, Vishal

    2015-01-01

    The Accreditation Council for Graduate Medical Education requires accredited fellowship programs to exhibit proficiency in six broadly defined domains; however, core competencies specifically mandated for hand surgery training have yet to be established. Several studies have demonstrated significant disparities in exposure to essential skills and knowledge between orthopedic surgery- and plastic surgery-based hand surgery fellowship programs. To determine whether significant discrepancies also exist after fellowship between hand surgeons trained in orthopedic surgery and those trained in plastic surgery, clinical practice patterns were evaluated. A 20-question survey was created and distributed electronically to American Society for Surgery of the Hand and American Association for Hand Surgery members. Responses were compared using descriptive statistics. Nine hundred eighty-two hand surgeons (76 percent orthopedic and 24 percent plastic) responded, representing a 39 percent response rate. Most plastic surgery hand practices were academic-based (41 percent), whereas orthopedic practices were private (67 percent). More orthopedic hand surgeons worked in multipractitioner practices than plastic surgeons (54 percent versus 30 percent; p digital replantation cases (53 percent versus 22 percent; p < 0.05) but treated significantly fewer open reduction and internal fixation distal radius fractures. Orthopedic and plastic surgery hand surgeons differ significantly in their clinical practice patterns. Differences in clinical exposure during training are reflected in practice and persist over time. Referral patterns and practice situations are also contributors to ultimate practice patterns.

  4. Hand and foot syndrome secondary to capecitabine

    Directory of Open Access Journals (Sweden)

    Hina Shaikh Lal

    2014-01-01

    Full Text Available A 55-year-old woman on treatment with capecitabine and paclitaxel for breast carcinoma presented with history of a tingling sensation in her hands and feet with a progressive burning sensation. She also noted discomfort, minimal pain and stiffness while holding objects. On examination, there was patchy hyperpigmentation of both the palms and soles, and the dorsa of hands and feet. This was accompanied by a thickening of the skin more over the knuckles and toes. In addition there was a moist desquamation around the toes and over the palmar creases and a bluish discoloration of the lunulae of both thumbnails. She was diagnosed with hand and foot syndrome and started on pyridoxine and emollients. The finding of keratoderma noted in our patient is not seen commonly in hand and foot syndrome.

  5. Hands-On Skills for Caregivers

    Science.gov (United States)

    ... A + A You are here Home Hands-On Skills for Caregivers Printer-friendly version When you’re ... therapist who can help you develop your transferring skills. Allow for their reality Remember to accept your ...

  6. The hand in Irish legend and folklore.

    Science.gov (United States)

    Mooney, E E; Prendiville, J B

    1991-06-01

    A brief review of the significance of the hand in the mythology, folklore, and religion of Ireland from ancient times is presented. Many of these accounts are also found in the history and legends of other Celtic countries.

  7. 29 CFR 1910.138 - Hand protection.

    Science.gov (United States)

    2010-07-01

    ...' hands are exposed to hazards such as those from skin absorption of harmful substances; severe cuts or lacerations; severe abrasions; punctures; chemical burns; thermal burns; and harmful temperature extremes. (b...

  8. American Society for Surgery of the Hand

    Science.gov (United States)

    ... Hand Surgeon For Residents and Fellows For Active Duty Military For International Surgeons Contact Us Mailing List Purchase Permission Requests Our Social Media Channels Policies ASSH Policies Code of Ethics Membership Protocols ASSH Bylaws For Patients For Physicians ...

  9. The oldest hand-axes in Europe.

    Science.gov (United States)

    Scott, Gary R; Gibert, Luis

    2009-09-03

    Stone tools are durable reminders of the activities, skills and customs of early humans, and have distinctive morphologies that reflect the development of technological skills during the Pleistocene epoch. In Africa, large cutting tools (hand-axes and bifacial chopping tools) became part of Palaeolithic technology during the Early Pleistocene ( approximately 1.5 Myr ago). However, in Europe this change had not been documented until the Middle Pleistocene (<0.5 Myr ago). Here we report dates for two western Mediterranean hand-axe sites that are nearly twice the age of the supposed earliest Acheulian in western Europe. Palaeomagnetic analysis of these two sites in southeastern Spain found reverse polarity magnetozones, showing that hand-axes were already in Europe as early as 0.9 Myr ago. This expanded antiquity for European hand-axe culture supports a wide geographic distribution of Palaeolithic bifacial technology outside of Africa during the Early Pleistocene.

  10. Bipedal tool use strengthens chimpanzee hand preferences

    DEFF Research Database (Denmark)

    Braccini, Stephanie; Lambeth, Susan; Schapiro, Steve;

    2010-01-01

    The degree to which non-human primate behavior is lateralized, at either individual or population levels, remains controversial. We investigated the relationship between hand preference and posture during tool use in chimpanzees (Pan troglodytes) during bipedal tool use. We experimentally induced...... tool use in a supported bipedal posture, an unsupported bipedal posture, and a seated posture. Neither bipedal tool use nor these supported conditions have been previously evaluated in apes. The hypotheses tested were 1) bipedal posture will increase the strength of hand preference, and 2) a bipedal...... stance, without the use of one hand for support, will elicit a right hand preference. Results supported the first, but not the second hypothesis: bipedalism induced the subjects to become more lateralized, but not in any particular direction. Instead, it appears that subtle pre-existing lateral biases...

  11. Acupuncture Relieves 10 years Frozen Hands

    Institute of Scientific and Technical Information of China (English)

    GuoJiaNadia

    2001-01-01

    The electric acupuncture (EA) treatment is successful in relieving frozen hands in a patient who had sufferred from severe brain damaged. EA is effective in reducing spasms and improving motor function.

  12. Hand-held Dynamo-metry

    OpenAIRE

    Ploeg, Rutger Jan Otto van der

    1992-01-01

    This study describes the application of a hand-held dynamometer that was designed to measure muscle strength in normal individuals and neurological patients in a simple way, comparable to manual muscle testing. Zie: Summary

  13. Creative mechanism design for a prosthetic hand.

    Science.gov (United States)

    Chang, Wen-Tung; Tseng, Ching-Huan; Wu, Long-Long

    2004-01-01

    In this paper, an auxiliary methodology called the creative mechanism design is introduced into the innovation of gripping devices for prosthetic hands. This methodology is a systematic approach based on modification of existing devices for the generation of all possible topological structures of mechanisms and mechanical devices. An existing gripping device (Teh Lin ATG-5F prosthetic hand) constructed by a planar six-bar linkage with one degree of freedom is dealt with by using this methodology. Through the processes of generalization, number synthesis, specialization and particularization for the existing design, five new mechanisms are created in this study to apply to anthropomorphic prosthetic hands. The results show that the methodology for creative mechanism design is a powerful tool for creating new categories of mechanisms to avoid existing designs that have patent protection and can help designers in the conceptual phase. Also, this methodology is validated as a useful way to improve prosthetic hands for amputees.

  14. Static hand gesture recognition from a video

    Science.gov (United States)

    Rokade, Rajeshree S.; Doye, Dharmpal

    2011-10-01

    A sign language (also signed language) is a language which, instead of acoustically conveyed sound patterns, uses visually transmitted sign patterns to convey meaning- "simultaneously combining hand shapes, orientation and movement of the hands". Sign languages commonly develop in deaf communities, which can include interpreters, friends and families of deaf people as well as people who are deaf or hard of hearing themselves. In this paper, we proposed a novel system for recognition of static hand gestures from a video, based on Kohonen neural network. We proposed algorithm to separate out key frames, which include correct gestures from a video sequence. We segment, hand images from complex and non uniform background. Features are extracted by applying Kohonen on key frames and recognition is done.

  15. Improving adherence to surgical hand preparation.

    Science.gov (United States)

    Kramer, A; Hübner, N; Below, H; Heidecke, C-D; Assadian, O

    2008-10-01

    At present, no universal agreement on detailed practice for surgical hand preparation exists. In order to fill this gap, in 2002 a Franco-German recommendation for surgical hand preparation was published as a first step towards a generally accepted European recommendation. Based on an assessment of the actual literature, a protocol for surgical hand preparation is discussed with the aim to recommend evidence-based standard procedures including prerequisites, washing and disinfection phase, and its practical implementation. In contrast to hygienic hand disinfection, for surgical hand preparation compliance is not an issue, since it mostly is regarded as a ceremony which is carried out without exception. Nevertheless, the following factors influence acceptance and efficacy: skin tolerance, ease of use, duration of procedure, and recommended time), potential for impaired efficacy due to incorrect performance of the procedure, possibility of systemic risks and irritating potential by applied preparations, religious restrictions, ecological aspects, costs and safety. Here, we report our experience with the introduction of a new hand preparation regime in all surgical disciplines in our university hospital based on the above factors. The following statements were evaluated: 1) The immediate efficacy of an alcohol-based hand disinfectant is impaired by a preceding hand wash for up to 10 minutes. Therefore hands should not be routinely washed before the disinfection period unless there is a good reason for it such as visible soiling. 2) A shortened application time (1.5 minutes) is equal to 3 min in terms of efficacy. 3) Hands should be air dried before gloves are put on, otherwise the perforation rate of gloves will increase. 4) The efficacy of alcohol-based disinfectants is significantly higher when hands are allowed to dry for 1 minute after the washing phase and before the disinfection phase. To clarify the above questions before the establishment of the modified

  16. Developing a computational model of human hand kinetics using AVS

    Energy Technology Data Exchange (ETDEWEB)

    Abramowitz, Mark S. [State Univ. of New York, Binghamton, NY (United States)

    1996-05-01

    As part of an ongoing effort to develop a finite element model of the human hand at the Institute for Scientific Computing Research (ISCR), this project extended existing computational tools for analyzing and visualizing hand kinetics. These tools employ a commercial, scientific visualization package called AVS. FORTRAN and C code, originally written by David Giurintano of the Gillis W. Long Hansen`s Disease Center, was ported to a different computing platform, debugged, and documented. Usability features were added and the code was made more modular and readable. When the code is used to visualize bone movement and tendon paths for the thumb, graphical output is consistent with expected results. However, numerical values for forces and moments at the thumb joints do not yet appear to be accurate enough to be included in ISCR`s finite element model. Future work includes debugging the parts of the code that calculate forces and moments and verifying the correctness of these values.

  17. A Hands-On Approach To Teaching Microcontroller

    Directory of Open Access Journals (Sweden)

    Che Fai Yeong

    2013-02-01

    Full Text Available Practice and application-oriented approach in education is important, and some research on active learning and cooperative problem-solving have shown that a student will learn faster and develop communication skill, leadership and team work through these methods. This paper presents a study of student preference and performance while learning the microcontroller subject with a 2-day curriculum that emphasized on hands-on approach. The curriculum uses the PIC16F877A microcontroller and participants learned to develop basic circuits and several other applications. Programming was completed on the MPLAB platform. Results show that participants had better understanding in this subject after attending the hands-on course.

  18. Data mining for average images in a digital hand atlas

    Science.gov (United States)

    Zhang, Aifeng; Cao, Fei; Pietka, Ewa; Liu, Brent J.; Huang, H. K.

    2004-04-01

    Bone age assessment is a procedure performed in pediatric patients to quickly evaluate parameters of maturation and growth from a left hand and wrist radiograph. Pietka and Cao have developed a Computer-aided diagnosis (CAD) method of bone age assessment based on a digital hand atlas. The aim of this paper is to extend their work by automatically select the best representative image from a group of normal children based on specific bony features that reflect skeletal maturity. The group can be of any ethnic origin and gender from one year to 18 year old in the digital atlas. This best representative image is defined as the "average" image of the group that can be augmented to Piekta and Cao's method to facilitate in the bone age assessment process.

  19. Teaching hand-washing with pictorial cues

    Directory of Open Access Journals (Sweden)

    Timo Saloviita

    2016-01-01

    Full Text Available Applied behavior analysis has been shown to be an effective means to teach daily living skills to individuals with intellectual disability. In the present study pictorial cues based on task analysis, system of least prompts, and social reinforcement were used to teach a man with mild intellectual disability to wash his hands correctly. An ABAB reversal design was used with follow-up after two weeks. The results show a rapid increase in hand-washing skills.

  20. Hand washing frequency in an emergency department.

    Science.gov (United States)

    Meengs, M R; Giles, B K; Chisholm, C D; Cordell, W H; Nelson, D R

    1994-06-01

    Objectives Previous studies, conducted mainly in ICUs, have shown low compliance with hand-washing recommendations, with failure rates approaching 60%. Hand washing in the emergency department has not been studied. We examined the frequency and duration of hand washing in one emergency department and the effects of three variables: level of training, type of patient contact (clean, dirty, or gloved), and years of staff clinical experience. Design Observational. Setting ED of a 1100-bed tertiary referral, central city, private teaching hospital. Participants Emergency nurses, faculty, and resident physicians. Participants were informed that their activities were being monitored but were unaware of the exact nature of the study. Interventions An observer recorded the number of patient contacts and activities for each participant during 3-hour observation periods. Activities were categorized as either clean or dirty according to a scale devised by Fulkerson. The use of gloves was noted and hand-washing technique and duration were recorded. A hand-washing break in technique was defined as failure to wash hands after a patient contact and before proceeding to another patient or activity. Results Eleven faculty, 11 resident physicians, and 13 emergency nurses were observed. Of 409 total contacts, 272 were clean, 46 were dirty, and 91 were gloved. Hand washing occurred after 32.3% of total contacts (SD, 2.31%). Nurses washed after 58.2% of 146 contacts (SD, 4.1%), residents after 18.6% of 129 contacts (SD, 3.4%), and faculty after 17.2% of 134 contacts (SD, 3.3%). Nurses had a significantly higher hand washing frequency than either faculty (p < 0.0001) or resident physicians (p < 0.0001).(ABSTRACT TRUNCATED AT 250 WORDS)