WorldWideScience

Sample records for direction signs

  1. Herdable Systems Over Signed, Directed Graphs

    KAUST Repository

    Ruf, Sebastian F.

    2018-04-11

    This paper considers the notion of herdability, a set-based reachability condition, which asks whether the state of a system can be controlled to be element-wise larger than a non-negative threshold. The basic theory of herdable systems is presented, including a necessary and sufficient condition for herdability. This paper then considers the impact of the underlying graph structure of a linear system on the herdability of the system, for the case where the graph is represented as signed and directed. By classifying nodes based on the length and sign of walks from an input, we find a class of completely herdable systems as well as provide a complete characterization of nodes that can be herded in systems with an underlying graph that is a directed out-branching rooted at a single input.

  2. Herdable Systems Over Signed, Directed Graphs

    KAUST Repository

    Ruf, Sebastian F.; Egerstedt, Magnus; Shamma, Jeff S.

    2018-01-01

    This paper considers the notion of herdability, a set-based reachability condition, which asks whether the state of a system can be controlled to be element-wise larger than a non-negative threshold. The basic theory of herdable systems is presented, including a necessary and sufficient condition for herdability. This paper then considers the impact of the underlying graph structure of a linear system on the herdability of the system, for the case where the graph is represented as signed and directed. By classifying nodes based on the length and sign of walks from an input, we find a class of completely herdable systems as well as provide a complete characterization of nodes that can be herded in systems with an underlying graph that is a directed out-branching rooted at a single input.

  3. 31 CFR 407.5 - Conformity with signs and directions.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Conformity with signs and directions. 407.5 Section 407.5 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued... TREASURY ANNEX § 407.5 Conformity with signs and directions. Persons in and on the property shall comply...

  4. 4 CFR 25.5 - Conformity with signs and directions.

    Science.gov (United States)

    2010-01-01

    ... 4 Accounts 1 2010-01-01 2010-01-01 false Conformity with signs and directions. 25.5 Section 25.5 Accounts GOVERNMENT ACCOUNTABILITY OFFICE GENERAL PROCEDURES CONDUCT IN THE GOVERNMENT ACCOUNTABILITY OFFICE BUILDING AND ON ITS GROUNDS § 25.5 Conformity with signs and directions. Persons in the GAO...

  5. Signed directed social network analysis applied to group conflict

    DEFF Research Database (Denmark)

    Zheng, Quan; Skillicorn, David; Walther, Olivier

    2015-01-01

    Real-world social networks contain relationships of multiple different types, but this richness is often ignored in graph-theoretic modelling. We show how two recently developed spectral embedding techniques, for directed graphs (relationships are asymmetric) and for signed graphs (relationships...... are both positive and negative), can be combined. This combination is particularly appropriate for intelligence, terrorism, and law enforcement applications. We illustrate by applying the novel embedding technique to datasets describing conflict in North-West Africa, and show how unusual interactions can...

  6. Convergence analysis of directed signed networks via an M-matrix approach

    Science.gov (United States)

    Meng, Deyuan

    2018-04-01

    This paper aims at solving convergence problems on directed signed networks with multiple nodes, where interactions among nodes are described by signed digraphs. The convergence analysis is achieved by matrix-theoretic and graph-theoretic tools, in which M-matrices play a central role. The fundamental digon sign-symmetry assumption upon signed digraphs can be removed with the proposed analysis approach. Furthermore, necessary and sufficient conditions are established for semi-positive and positive stabilities of Laplacian matrices of signed digraphs, respectively. A benefit of this result is that given strong connectivity, a directed signed network can achieve bipartite consensus (or state stability) if and only if the signed digraph associated with it is structurally balanced (or unbalanced). If the interactions between nodes are described by a signed digraph only with spanning trees, a directed signed network can achieve interval bipartite consensus (or state stability) if and only if the signed digraph contains a structurally balanced (or unbalanced) rooted subgraph. Simulations are given to illustrate the developed results by considering signed networks associated with digon sign-unsymmetric signed digraphs.

  7. 7 CFR 500.4 - Conformity with signs and emergency directions.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Conformity with signs and emergency directions. 500.4 Section 500.4 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH... Conformity with signs and emergency directions. Persons in and on property of the USNA shall comply with...

  8. 7 CFR 501.4 - Conformity with signs and emergency directions.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Conformity with signs and emergency directions. 501.4 Section 501.4 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH... § 501.4 Conformity with signs and emergency directions. Persons in and on property of the Research...

  9. 7 CFR 502.4 - Conformity with signs and emergency directions.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Conformity with signs and emergency directions. 502.4 Section 502.4 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL RESEARCH..., MARYLAND § 502.4 Conformity with signs and emergency directions. Persons in and on property of BARC shall...

  10. 36 CFR 520.5 - Conformity with signs and emergency directions.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Conformity with signs and emergency directions. 520.5 Section 520.5 Parks, Forests, and Public Property SMITHSONIAN INSTITUTION RULES... INSTITUTION § 520.5 Conformity with signs and emergency directions. Persons in or on the premises shall comply...

  11. Video Feedback in Key Word Signing Training for Preservice Direct Support Staff

    Science.gov (United States)

    Rombouts, Ellen; Meuris, Kristien; Maes, Bea; De Meyer, Anne-Marie; Zink, Inge

    2016-01-01

    Purpose: Research has demonstrated that formal training is essential for professionals to learn key word signing. Yet, the particular didactic strategies have not been studied. Therefore, this study compared the effectiveness of verbal and video feedback in a key word signing training for future direct support staff. Method: Forty-nine future…

  12. 36 CFR 504.4 - Conformity with signs and emergency directions.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Conformity with signs and emergency directions. 504.4 Section 504.4 Parks, Forests, and Public Property SMITHSONIAN INSTITUTION RULES AND REGULATIONS GOVERNING SMITHSONIAN INSTITUTION BUILDINGS AND GROUNDS § 504.4 Conformity with signs...

  13. Directionality effects in simultaneous language interpreting: the case of sign language interpreters in The Netherlands.

    Science.gov (United States)

    Van Dijk, Rick; Boers, Eveline; Christoffels, Ingrid; Hermans, Daan

    2011-01-01

    The quality of interpretations produced by sign language interpreters was investigated. Twenty-five experienced interpreters were instructed to interpret narratives from (a) spoken Dutch to Sign Language of The Netherlands (SLN), (b) spoken Dutch to Sign Supported Dutch (SSD), and (c) SLN to spoken Dutch. The quality of the interpreted narratives was assessed by 5 certified sign language interpreters who did not participate in the study. Two measures were used to assess interpreting quality: the propositional accuracy of the interpreters' interpretations and a subjective quality measure. The results showed that the interpreted narratives in the SLN-to-Dutch interpreting direction were of lower quality (on both measures) than the interpreted narratives in the Dutch-to-SLN and Dutch-to-SSD directions. Furthermore, interpreters who had begun acquiring SLN when they entered the interpreter training program performed as well in all 3 interpreting directions as interpreters who had acquired SLN from birth.

  14. Partial and complete tear of the anterior cruciate ligament. Direct and indirect MR signs

    International Nuclear Information System (INIS)

    Chen, W.T.; Tu, H.Y.; Chen, R.C.; Shih, T.T.F.; Shau, W.Y.

    2002-01-01

    Purpose: To analyze MR direct and indirect signs for knees with anterior cruciate ligament (ACL) partial or complete tear. Material and Methods: According to documented MR direct and indirect signs for ACL tear, we retrospectively reviewed the incidence of those signs in 15 partial ACL tear and 17 complete ACL tear patients. The findings were also compared with duration of injury (less or more than 6 weeks, as acute or chronic stages). Results: A residual straight and tight ACL fiber in at least one pulse sequence was more frequently detected in partial ACL tears. The empty notch sign, a wavy contour of ACL, bone contusion at lateral compartment and lateral meniscus posterior horn tear were significantly more frequently seen in complete tear cases. The posterior cruciate ligament angle in chronic complete ACL tear cases (109 deg ±20 deg) had a tendency to be less than in chronic partial ACL tear cases (119 deg ±18 deg). Conclusion: The empty notch sign, a wavy ACL, bone contusion, and posterior horn of lateral meniscus tears are suggestive of a complete ACL tear. A residual straight and tight ACL fiber seen in at least one image section is a helpful sign to diagnosis of partial ACL tear. In the acute ACL injury stage, a focal increase of the ACL signal intensity is more suggestive of a partial ACL tear

  15. Rapid, directed transport of DC-SIGN clusters in the plasma membrane.

    Science.gov (United States)

    Liu, Ping; Weinreb, Violetta; Ridilla, Marc; Betts, Laurie; Patel, Pratik; de Silva, Aravinda M; Thompson, Nancy L; Jacobson, Ken

    2017-11-01

    C-type lectins, including dendritic cell-specific intercellular adhesion molecule-3-grabbing nonintegrin (DC-SIGN), are all-purpose pathogen receptors that exist in nanoclusters in plasma membranes of dendritic cells. A small fraction of these clusters, obvious from the videos, can undergo rapid, directed transport in the plane of the plasma membrane at average speeds of more than 1 μm/s in both dendritic cells and MX DC-SIGN murine fibroblasts ectopically expressing DC-SIGN. Surprisingly, instantaneous speeds can be considerably greater. In MX DC-SIGN cells, many cluster trajectories are colinear with microtubules that reside close to the ventral membrane, and the microtubule-depolymerizing drug, nocodazole, markedly reduced the areal density of directed movement trajectories, suggesting a microtubule motor-driven transport mechanism; by contrast, latrunculin A, which affects the actin network, did not depress this movement. Rapid, retrograde movement of DC-SIGN may be an efficient mechanism for bringing bound pathogen on the leading edge and projections of dendritic cells to the perinuclear region for internalization and processing. Dengue virus bound to DC-SIGN on dendritic projections was rapidly transported toward the cell center. The existence of this movement within the plasma membrane points to an unexpected lateral transport mechanism in mammalian cells and challenges our current concepts of cortex-membrane interactions.

  16. 75 FR 4450 - Financial Management Service; Proposed Collection of Information: Direct Deposit Sign-Up Form

    Science.gov (United States)

    2010-01-27

    ... DEPARTMENT OF THE TREASURY Fiscal Service Financial Management Service; Proposed Collection of Information: Direct Deposit Sign-Up Form AGENCY: Financial Management Service, Fiscal Service, Treasury. ACTION: Notice and Request for comments. SUMMARY: The Financial Management Service, as part of its...

  17. Signage as a tool for behavioral change: Direct and indirect routes to understanding the meaning of a sign.

    Science.gov (United States)

    Meis, Julia; Kashima, Yoshihisa

    2017-01-01

    Signs, prompts, and symbols are a common means to change behavior in our society. Understanding the psychological mechanisms by which signage influences behavior is a critical first step to achieve the desired outcome. In the current research, we propose a theoretical model of sign-to-behavior process. The model suggests that when one encounters a sign, it is encoded to construct an action representation (comprehension process), which is then acted on unless its enactment is inhibited (decision process). We test the implications of the model in two studies. In support of our hypothesis, for unfamiliar signs, clarity of purpose predicts perceived effectiveness of a sign; however, for familiar signs, clarity of purpose does not matter. Insights gained from the studies will help to design effective signs. Practical implications of the model are discussed, and future research directions are outlined.

  18. How sensory-motor systems impact the neural organization for language: direct contrasts between spoken and signed language

    Science.gov (United States)

    Emmorey, Karen; McCullough, Stephen; Mehta, Sonya; Grabowski, Thomas J.

    2014-01-01

    To investigate the impact of sensory-motor systems on the neural organization for language, we conducted an H215O-PET study of sign and spoken word production (picture-naming) and an fMRI study of sign and audio-visual spoken language comprehension (detection of a semantically anomalous sentence) with hearing bilinguals who are native users of American Sign Language (ASL) and English. Directly contrasting speech and sign production revealed greater activation in bilateral parietal cortex for signing, while speaking resulted in greater activation in bilateral superior temporal cortex (STC) and right frontal cortex, likely reflecting auditory feedback control. Surprisingly, the language production contrast revealed a relative increase in activation in bilateral occipital cortex for speaking. We speculate that greater activation in visual cortex for speaking may actually reflect cortical attenuation when signing, which functions to distinguish self-produced from externally generated visual input. Directly contrasting speech and sign comprehension revealed greater activation in bilateral STC for speech and greater activation in bilateral occipital-temporal cortex for sign. Sign comprehension, like sign production, engaged bilateral parietal cortex to a greater extent than spoken language. We hypothesize that posterior parietal activation in part reflects processing related to spatial classifier constructions in ASL and that anterior parietal activation may reflect covert imitation that functions as a predictive model during sign comprehension. The conjunction analysis for comprehension revealed that both speech and sign bilaterally engaged the inferior frontal gyrus (with more extensive activation on the left) and the superior temporal sulcus, suggesting an invariant bilateral perisylvian language system. We conclude that surface level differences between sign and spoken languages should not be dismissed and are critical for understanding the neurobiology of language

  19. The "handedness" of language: Directional symmetry breaking of sign usage in words.

    Science.gov (United States)

    Ashraf, Md Izhar; Sinha, Sitabhra

    2018-01-01

    Language, which allows complex ideas to be communicated through symbolic sequences, is a characteristic feature of our species and manifested in a multitude of forms. Using large written corpora for many different languages and scripts, we show that the occurrence probability distributions of signs at the left and right ends of words have a distinct heterogeneous nature. Characterizing this asymmetry using quantitative inequality measures, viz. information entropy and the Gini index, we show that the beginning of a word is less restrictive in sign usage than the end. This property is not simply attributable to the use of common affixes as it is seen even when only word roots are considered. We use the existence of this asymmetry to infer the direction of writing in undeciphered inscriptions that agrees with the archaeological evidence. Unlike traditional investigations of phonotactic constraints which focus on language-specific patterns, our study reveals a property valid across languages and writing systems. As both language and writing are unique aspects of our species, this universal signature may reflect an innate feature of the human cognitive phenomenon.

  20. The “handedness” of language: Directional symmetry breaking of sign usage in words

    Science.gov (United States)

    2018-01-01

    Language, which allows complex ideas to be communicated through symbolic sequences, is a characteristic feature of our species and manifested in a multitude of forms. Using large written corpora for many different languages and scripts, we show that the occurrence probability distributions of signs at the left and right ends of words have a distinct heterogeneous nature. Characterizing this asymmetry using quantitative inequality measures, viz. information entropy and the Gini index, we show that the beginning of a word is less restrictive in sign usage than the end. This property is not simply attributable to the use of common affixes as it is seen even when only word roots are considered. We use the existence of this asymmetry to infer the direction of writing in undeciphered inscriptions that agrees with the archaeological evidence. Unlike traditional investigations of phonotactic constraints which focus on language-specific patterns, our study reveals a property valid across languages and writing systems. As both language and writing are unique aspects of our species, this universal signature may reflect an innate feature of the human cognitive phenomenon. PMID:29342176

  1. evelopment of a boiling water reactor fault diagnostic system with a signed directed graph method

    International Nuclear Information System (INIS)

    Chen, M.; Yu, C.C.; Liou, C.T.; Liao, L.Y.

    1990-01-01

    The fault diagnostic system for a nuclear power reactor is expected to be a useful decision support system for the operators during transients and accident conditions. A considerable research effort has been devoted to the development of automated fault diagnostic systems. One major approach, which has been widely used in chemical engineering, is to identify the possible causes of process disturbance using a logic-oriented method called signed directed graph (SDG). A knowledge based system was developed with the rules derived from the SDG representation. The SDG for the Chinshan nuclear power plant, which is a typical boiling water reactor, is established. The personal consultant system is used as the expert system development tool in this paper

  2. Diagnosis of acute flank pain caused by ureteral stones: value of combined direct and indirect signs on IVU and unenhanced helical CT

    International Nuclear Information System (INIS)

    Wang, Li-Jen; Wong, Yon-Cheong; Ng, Chip-Jin; Chen, Jih-Chang; Chiu, Te-Fa

    2004-01-01

    The aim of this study was to assess the usefulness of combined direct and indirect signs on intravenous urography (IVU) and unenhanced helical computed tomography (UHCT) for the diagnosis of ureteral stones in emergency patients with acute flank pain. During an 8-month period, 82 emergency patients with acute flank pain undergoing IVU and UHCT with sufficient clinical follow-up formed the study group. The presence or absence of direct sign (visualization of ureteral stones) and indirect signs on IVU and UHCT was recorded. The diagnostic accuracy of each direct/indirect sign and their combination for the diagnosis of ureteral stones on IVU and UHCT were analyzed and compared. Of the 82 patients, 66 had ureteral stones, four had passed urinary stones prior to imaging and 12 had other diseases. The diagnostic accuracies of direct signs on IVU and UHCT for the diagnosis of ureteral stones were 79.3 and 98.8%, respectively, which was more accurate than that of any single indirect sign on IVU and UHCT. However, the diagnostic accuracy of ureteral stones by IVU increased to 90.2% when using diagnostic criteria requiring the presence of a direct sign or at least three indirect signs, and by UHCT, it increased to 100% when using diagnostic criteria requiring the presence of a direct sign with at least one indirect sign. Therefore, for emergency patients with acute flank pain, the use of the above combinations of direct/indirect signs is useful as the diagnostic criterion for ureteral stones. (orig.)

  3. Vital Signs Directed Therapy: Improving Care in an Intensive Care Unit in a Low-Income Country.

    Directory of Open Access Journals (Sweden)

    Tim Baker

    Full Text Available Global Critical Care is attracting increasing attention. At several million deaths per year, the worldwide burden of critical illness is greater than generally appreciated. Low income countries (LICs have a disproportionally greater share of critical illness, and yet critical care facilities are scarce in such settings. Routines utilizing abnormal vital signs to identify critical illness and trigger medical interventions have become common in high-income countries but have not been investigated in LICs. The aim of the study was to assess whether the introduction of a vital signs directed therapy protocol improved acute care and reduced mortality in an Intensive Care Unit (ICU in Tanzania.Prospective, before-and-after interventional study in the ICU of a university hospital in Tanzania. A context-appropriate protocol that defined danger levels of severely abnormal vital signs and stipulated acute treatment responses was implemented in a four week period using sensitisation, training, job aids, supervision and feedback. Acute treatment of danger signs at admission and during care in the ICU and in-hospital mortality were compared pre and post-implementation using regression models. Danger signs from 447 patients were included: 269 pre-implementation and 178 post-implementation. Acute treatment of danger signs was higher post-implementation (at admission: 72.9% vs 23.1%, p<0.001; in ICU: 16.6% vs 2.9%, p<0.001. A danger sign was five times more likely to be treated post-implementation (Prevalence Ratio (PR 4.9 (2.9-8.3. Intravenous fluids were given in response to 35.0% of hypotensive episodes post-implementation, as compared to 4.1% pre-implementation (PR 6.4 (2.5-16.2. In patients admitted with hypotension, mortality was lower post-implementation (69.2% vs 92.3% p = 0.02 giving a numbers-needed-to-treat of 4.3. Overall in-hospital mortality rates were unchanged (49.4% vs 49.8%, p = 0.94.The introduction of a vital signs directed therapy protocol

  4. Cultural perspectives of older nursing home residents regarding signing their own DNR directives in Eastern Taiwan: a qualitative pilot study.

    Science.gov (United States)

    Lee, Hsin-Tzu Sophie; Cheng, Shu-Chen; Dai, Yu-Tzu; Chang, Mei; Hu, Wen-Yu

    2016-05-06

    Chinese tradition and culture developed from Taoism, Confucianism, and Buddhism and have influenced ethnic Chinese for thousands of years, particularly thoughts on death. Many ethnic Chinese, particularly older people, refrain from discussing death-related concerns, making it difficult to obtain advance directives, including do-not-resuscitate (DNR) directives, signed independently by older people. This study explored the attitudes of older nursing home residents in Taiwan toward signing their own DNR directives. This study adopted purposive sampling and collected data through in-depth interviews. The data were analysed using qualitative inductive content analysis, and the study location was a nursing home in Eastern Taiwan. A total of 11participants were recruited from a sample of 12 eligible participants. Most of the older residents in this study refused to make decisions independently regarding DNR directives. Content analysis of the interviews revealed four themes concerning refusing to sign DNR directives independently: not going against nature, accepting the results of cause and effect, viewing the family as a decision-making system, and practising self-effacement. Chinese cultural aspects, including Taoist, Buddhist, and Confucian philosophy, affected the autonomy of the older residents, and they relied on others to make decisions for them. Professionals must respect this family-oriented decision-making thinking of older residents because it reflects personal choice. Otherwise, healthcare providers may play a mediating role in coordinating and communicating between older residents and their families regarding EOL-care-related concerns, replacing the traditional practice of holding a family meeting.

  5. Home telemonitoring of vital signs--technical challenges and future directions.

    Science.gov (United States)

    Celler, Branko G; Sparks, Ross S

    2015-01-01

    The telemonitoring of vital signs from the home is an essential element of telehealth services for the management of patients with chronic conditions, such as congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), diabetes, or poorly controlled hypertension. Telehealth is now being deployed widely in both rural and urban settings, and in this paper, we discuss the contribution made by biomedical instrumentation, user interfaces, and automated risk stratification algorithms in developing a clinical diagnostic quality longitudinal health record at home. We identify technical challenges in the acquisition of high-quality biometric signals from unsupervised patients at home, identify new technical solutions and user interfaces, and propose new measurement modalities and signal processing techniques for increasing the quality and value of vital signs monitoring at home. We also discuss use of vital signs data for the automated risk stratification of patients, so that clinical resources can be targeted to those most at risk of unscheduled admission to hospital. New research is also proposed to integrate primary care, hospital, personal genomic, and telehealth electronic health records, and apply predictive analytics and data mining for enhancing clinical decision support.

  6. A comparative study of clinical signs, computed tomography, and electroencephalography after direct operation of ruptured anterior communicating aneurysms, 1

    International Nuclear Information System (INIS)

    Kitaoka, Kenichi; Abe, Hiroshi; Nakagawa, Yoku; Imai, Tomohiro; Satoh, Masaharu.

    1987-01-01

    Eight cases with ruptured anterior communicating aneurysms, who developed mental signs of mild degree lasting more than two weeks following direct operation, were subjected to our study. The following results were obtained. 1) The mental signs of mild degree in 8 cases consisted of memory and emotional disturbances. The main findings of CT scan was low density area in the subcortical and cortical areas of the frontal lobe. There was no close correlation on CT findings between memory and emotional disturbances. 2) Abnormal density areas were detected on CT scan, but EEG showed no localized abnormalities of slow waves. Abnormal density areas were not clearly shown on CT, but EEG showed localized abnormalities. Background activities on EEG were favorable despite lesions detected on CT. Either local or diffuse abnormalities were observed in EEG background activities while no abnormal mental signs were recognized. 3) In cases with no apparent abnormal findings on CT and with favorable background activities on EEG, EEG showed marked build up during hyperventilation. 4) As indicated by the above data, comparative studies of CT and EEG findings revealed differences in sites of abnormalities and degree of abnormalities. This is considered caused by a possible increase in cerebral blood flow and metabolism at initiation of chronic stage following subarachnoid hemorrhage-resulting in the disappearance of abnormalities on EEG. (author)

  7. SIGNS The sandwich sign

    African Journals Online (AJOL)

    The sandwich sign is demonstrated on cross-sectional imaging, commonly on CT or ultrasound. It refers to homogeneous soft- tissue masses representing mesenteric lymphadenopathy as the two halves of a sandwich bun, encasing the mesenteric fat and tubular mesenteric vessels that constitute the 'sandwich filling' (Figs ...

  8. Metacarpal sign

    Directory of Open Access Journals (Sweden)

    Barbara Nieradko-Iwanicka

    2018-02-01

    Full Text Available Background Archibald's sign, or metacarpal sign is defined as shortening of the IV and V metacarpal bones, is a rare phenomenon found in the Turner syndrome, homocystinuria and in Albright's osteodystrophy. Objectives The aim of the article was to show a rare case of metacarpal sign with atypical shortening of the III and IV metacarpal bones not connected with gonadal dysgenesia, genetic disorders nor osteodystrophy. Material and methods Case report of a 60-year-old female patient. Results Artchibald's metacarpal sign in the described case was accompanied by erosive arthritis in the left lower extremity. No features of genetic disorders nor gonadal disgenesia were found in the patient. Undifferentiated seronegative asymmetric erosive arthritis developed in the patient. The level of parathormon was within the normal range. No signs of tumor were seen in bone scintigraphy. Conclusions Archibald's metacarpal sign may be present in patients without genetic disorders.

  9. sign-by-sign'' correlation

    International Nuclear Information System (INIS)

    Schmidt, Sabine; Lepori, Domenico; Meuwly, Jean-Yves; Duvoisin, Bertrand; Meuli, Reto; Schnyder, Pierre; Denys, Alban; Michetti, Pierre; Felley, Christian; Melle, Guy van

    2003-01-01

    Our objective was a prospective comparison of MR enteroclysis (MRE) with multidetector spiral-CT enteroclysis (MSCTE). Fifty patients with various suspected small bowel diseases were investigated by MSCTE and MRE. The MSCTE was performed using slices of 2.5 mm, immediately followed by MRE, obtaining T1- and T2-weighted sequences, including gadolinium-enhanced acquisition with fat saturation. Three radiologists independently evaluated MSCTE and MRE searching for 12 pathological signs. Interobserver agreement was calculated. Sensitivities and specificities resulted from comparison with pathological results (n=29) and patient's clinical evolution (n=21). Most pathological signs, such as bowel wall thickening (BWT), bowel wall enhancement (BWE) and lymphadenopathy (ADP), showed better interobserver agreement on MSCTE than on MRE (BWT: 0.65 vs 0.48; BWE: 0.51 vs 0.37; ADP: 0.52 vs 0.15). Sensitivity of MSCTE was higher than that of MRE in detecting BWT (88.9 vs 60%), BWE (78.6 vs 55.5%) and ADP (63.8 vs 14.3%). Wilcoxon signed-rank test revealed significantly better sensitivity of MSCTE than that of MRE for each observer (p=0.028, p=0.046, p=0.028, respectively). Taking the given study design into account, MSCTE provides better sensitivity in detecting lesions of the small bowel than MRE, with higher interobserver agreement. (orig.)

  10. Decree No 524 of 8 June 1982 of the President of the Republic implementing CEC. Directive No 77/576 for standardization of Member States' legislative, regulatory and administrative provisions on safety signs in workplaces and CEC Directive No 79/640 amending the Annexes of the latter

    International Nuclear Information System (INIS)

    1982-01-01

    This Decree implements at national level Directive No 77/576 of 27 July 1977 of the Commission of the European Communities, as amended by Directive No 79/640 of 21 June 1979. The Directive provides for the standardization by Member States of their legislative, regulatory and administrative provisions concerning safety signs in workplaces, including radioactivity symbols. (NEA) [fr

  11. Signing off

    Science.gov (United States)

    2001-05-01

    sharp that they cause paper cuts. Stains. If you accidentally spill some food or drink on your clothes, make sure you attempt to remove it as soon as possible and preferably within the same lunar cycle. Some teachers seem to think they should be worn with pride like the stains on a chemistry teacher's white coat. This is a myth. Materials. For scientists continually teaching about the wonder of smart materials, physics teachers are remarkably conservative in their choice of materials for their clothes. Try to break out from the traditional corduroy and tweed and practise what you teach. It is not acceptable to wear the actual tie you wore at school, as this will be at least 20 years old, be rather frayed and will have your name sewn in the back by your mum. Steven Chapman Science Year Manager, British Association for the Advancement of Science Signing Off takes a humorous and irreverent look at physics education. The views expressed here are those of the author and are not endorsed by the Editorial Board for Physics Education. Can you contribute a zany attitude or humorous anecdote? Please send your offering to ped@iop.org marked Signing Off.

  12. Headaches - danger signs

    Science.gov (United States)

    Migraine headache - danger signs; Tension headache - danger signs; Cluster headache - danger signs; Vascular headache - danger signs ... and other head pain. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine . 25th ed. Philadelphia, PA: ...

  13. Name signs in Danish Sign Language

    DEFF Research Database (Denmark)

    Bakken Jepsen, Julie

    2018-01-01

    in spoken languages, where a person working as a blacksmith by his friends might be referred to as ‘The Blacksmith’ (‘Here comes the Blacksmith!’) instead of using the person’s first name. Name signs are found not only in Danish Sign Language (DSL) but in most, if not all, sign languages studied to date....... This article provides examples of the creativity of the users of Danish Sign Language, including some of the processes in the use of metaphors, visual motivation and influence from Danish when name signs are created.......A name sign is a personal sign assigned to deaf, hearing impaired and hearing persons who enter the deaf community. The mouth action accompanying the sign reproduces all or part of the formal first name that the person has received by baptism or naming. Name signs can be compared to nicknames...

  14. Modeling online social signed networks

    Science.gov (United States)

    Li, Le; Gu, Ke; Zeng, An; Fan, Ying; Di, Zengru

    2018-04-01

    People's online rating behavior can be modeled by user-object bipartite networks directly. However, few works have been devoted to reveal the hidden relations between users, especially from the perspective of signed networks. We analyze the signed monopartite networks projected by the signed user-object bipartite networks, finding that the networks are highly clustered with obvious community structure. Interestingly, the positive clustering coefficient is remarkably higher than the negative clustering coefficient. Then, a Signed Growing Network model (SGN) based on local preferential attachment is proposed to generate a user's signed network that has community structure and high positive clustering coefficient. Other structural properties of the modeled networks are also found to be similar to the empirical networks.

  15. Warning Signs of Bullying

    Science.gov (United States)

    ... of Aggressive Behavior Print Share Warning Signs for Bullying There are many warning signs that may indicate ... Get help right away . Signs a Child is Bullying Others Kids may be bullying others if they: ...

  16. Refuting the lipstick sign.

    Science.gov (United States)

    Grassbaugh, Jason A; Bean, Betsey R; Greenhouse, Alyssa R; Yu, Henry H; Arrington, Edward D; Friedman, Richard J; Eichinger, Josef K

    2017-08-01

    Arthroscopic examination of the tendon has been described as the "gold standard" for diagnosis of tendinitis of the long head of the biceps (LHB). An arthroscopic finding of an inflamed and hyperemic LHB within the bicipital groove has been described as the "lipstick sign." Studies evaluating direct visualization in diagnosis of LHB tendinitis are lacking. During a 1-year period, 363 arthroscopic shoulder procedures were performed, with 16 and 39 patients prospectively selected as positive cases and negative controls, respectively. All positive controls had groove tenderness, positive Speed maneuver, and diagnostic ultrasound-guided bicipital injection. Negative controls had none of these findings. Six surgeons reviewed randomized deidentified arthroscopic pictures of enrolled patients The surgeons were asked whether the images demonstrated LHB tendinitis and if the lipstick sign was present. Overall sensitivity and specificity were 49% and 66%, respectively, for detecting LHB tendinitis and 64% and 31%, respectively, for erythema. The nonweighted κ score for interobserver reliability ranged from 0.042 to 0.419 (mean, 0.215 ± 0.116) for tendinitis and from 0.486 to 0.835 (mean, 0.680 ± 0.102) for erythema. The nonweighted κ score for intraobserver reliability ranged from 0.264 to 0.854 (mean, 0.615) for tendinitis and from 0.641 to 0.951 (mean, 0.783) for erythema. The presence of the lipstick sign performed only moderately well in a rigorously designed level III study to evaluate its sensitivity and specificity. There is only fair agreement among participating surgeons in diagnosing LHB tendinitis arthroscopically. Consequently, LHB tendinitis requiring tenodesis remains a clinical diagnosis that should be made before arthroscopic examination. Published by Elsevier Inc.

  17. 'Felson Signs' revisited

    International Nuclear Information System (INIS)

    George, Phiji P.; Irodi, Aparna; Keshava, Shyamkumar N.; Lamont, Anthony C.

    2014-01-01

    In this article we revisit, with the help of images, those classic signs in chest radiography described by Dr Benjamin Felson himself, or other illustrious radiologists of his time, cited and discussed in 'Chest Roentgenology'. We briefly describe the causes of the signs, their utility and the differential diagnosis to be considered when each sign is seen. Wherever possible, we use CT images to illustrate the basis of some of these classic radiographic signs.

  18. Signed languages and globalization

    NARCIS (Netherlands)

    Hiddinga, A.; Crasborn, O.

    2011-01-01

    Deaf people who form part of a Deaf community communicate using a shared sign language. When meeting people from another language community, they can fall back on a flexible and highly context-dependent form of communication called international sign, in which shared elements from their own sign

  19. British Sign Name Customs

    Science.gov (United States)

    Day, Linda; Sutton-Spence, Rachel

    2010-01-01

    Research presented here describes the sign names and the customs of name allocation within the British Deaf community. While some aspects of British Sign Language sign names and British Deaf naming customs differ from those in most Western societies, there are many similarities. There are also similarities with other societies outside the more…

  20. Prefronto–cerebellar transcranial direct current stimulation improves visuospatial memory, executive functions, and neurological soft signs in patients with euthymic bipolar disorder

    Directory of Open Access Journals (Sweden)

    Minichino A

    2015-08-01

    Full Text Available Amedeo Minichino, Francesco Saverio Bersani, Laura Bernabei, Francesco Spagnoli, Lucilla Vergnani, Alessandra Corrado, Ines Taddei, Massimo Biondi, Roberto Delle Chiaie Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy Objective: The aim of the study was to improve neuropsychological functioning of euthymic patients with bipolar disorder (BD using transcranial direct current stimulation (tDCS applied to cerebellar and prefrontal cortices.Methods: Twenty-five BD outpatients underwent prefrontal (anodal and cerebellar (cathodal tDCS for 3 consecutive weeks. All participants were assessed through the Rey Complex Figure Test delay and copy and the Neurological Examination Scale at baseline and after therapy with tDCS.Results: After tDCS treatment, patients showed significant improvements in visuospatial memory tasks. Patients with worse baseline cognitive performances also showed a significant improvement in executive functioning tasks. Neurological Examination Scale total score and motor coordination subscale significantly improved.Conclusion: Prefrontal-excitatory and cerebellar-inhibitory stimulations in euthymic BD patients may lead to better neurocognitive performances. This improvement could result from the modulation of prefronto–thalamic–cerebellar circuit activity pattern, which can be disrupted in BD. Keywords: cerebellum, dorsolateral prefrontal cortex, neuropsychology, cognition 

  1. On the System of Person-Denoting Signs in Estonian Sign Language: Estonian Name Signs

    Science.gov (United States)

    Paales, Liina

    2010-01-01

    This article discusses Estonian personal name signs. According to study there are four personal name sign categories in Estonian Sign Language: (1) arbitrary name signs; (2) descriptive name signs; (3) initialized-descriptive name signs; (4) loan/borrowed name signs. Mostly there are represented descriptive and borrowed personal name signs among…

  2. Electronic traffic signs: Reflecting upon its transition

    Energy Technology Data Exchange (ETDEWEB)

    Arbaiza Martin, A.E.; Alba, A.L.; Hernando Mazon, A.; Blanch Mico, M.T.

    2016-07-01

    In our days we face a fundamental issue concerning road signs. We may display contents in vertical and horizontal format (static signs, variable message signs, road markings), either on a post, a gantry or a dashboard. And we foresee a coming age where the excellent matrix resolution of painted signs will be truly approached by the resolution of full matrix displays. But we also risk a babel context threatening the universal approach encouraged by international catalogues as the 1968 Convention (ECE/TRANS/196, 2007). And the fundamental risk comes from our decisions regarding how the transition from the contents and formats displayed on static message signs to the ones displayed on electronic signs (in gantries or dashboards) should be. Our work explores this issue specifically, considering the transition from Advance Direction Signs (static message signs, class G, 1 in the 1968 Convention) to what could be termed Advance Location Signs (signs concerning the location of variable events with regards to certain landmarks) developed as an adaptation of the G, 1 class to electronic traffic signs.(Author)

  3. Hutchinson’s Sign

    Directory of Open Access Journals (Sweden)

    Lawrence Lau

    2018-01-01

    Full Text Available History of present illness: A 30-year-old African American male presents with two days of gradually worsening vesicular pruritic rash over the left naris, left upper lip, and inferior to medial epicanthus, initially noted just on the upper lip the night before. By the next day it had spread to the nose and cheek. Patient denies any fever, pain, discharge from the rash, ear or nose, or changes in vision. He denies exposure to any new hygiene products, household cleaning products, recent outdoor activities, travel, or insect bites. Past medical history significant for a childhood varicella infection. Patient works for a moving company, and had an episode of heat exhaustion at work one week prior to onset. Denies alcohol or drug abuse. Significant findings: The unilateral distribution of vesicular lesions over the patient’s left naris, cheek, and upper lip are consistent with Herpes zoster reactivation with Hutchinson’s sign. Hutchinson’s sign is a herpes zoster vesicle present on the tip or side of the nose.1 It reflects zoster involvement of the 1st branch of the trigeminal nerve, and is concerning for herpes zoster ophthalmicus.1 Herpes zoster vesicles may present as papular lesions or macular vesicles on an erythematous base.2,3 Emergent diagnosis must be made to prevent long-term visual sequelae.4 Discussion: The history of a childhood viral exanthem, specifically a past varicella infection, helps direct the diagnosis.2 Herpes zoster ophthalmicus is an ophthalmological emergency and results from viral reactivation within the V1 branch of CN V, leading to direct ocular involvement.1 Symptoms of ocular involvement include red eye, blurry vision, eye pain or photophobia.1 If left untreated, corneal ulceration, scarring, perforation, glaucoma, cataracts, and blindness may occur.1 Fluorescein staining with slit lamp examination will show a characteristic “dendritic ulcer” within the epithelial layer of the cornea.1 Treatment is generally

  4. New radiation warning sign

    International Nuclear Information System (INIS)

    Mac Kenzie, C.; Mason, C.

    2006-01-01

    Full text: Radiation accidents involving orphan radioactive sources have happened as a result of people not recognizing the radiation trefoil symbol or from being illiterate and not understanding a warning statement on the radiation source. The trefoil symbol has no inherent meaning to people that have not been instructed in its use. A new radiation warning sign, to supplement the existing trefoil symbol, has been developed to address these issues. Human Factors experts, United Nations member states, and members of the international community of radiation protection professionals were consulted for input on the design of a new radiation warning sign that would clearly convey the message of 'Danger- Run Away- Stay Away' when in close proximity to a dangerous source of radiation. Cultural differences of perception on various warning symbols were taken into consideration and arrays of possible signs were developed. The signs were initially tested in international children for identification with the desired message and response. Based on these test results and further input from radiation protection professionals, five warning signs were identified as the most successful in conveying the desired message and response. These five signs were tested internationally in eleven countries by a professional survey company to determine the best sign for this purpose. The conclusion of the international testing is presented. The new radiation warning sign is currently a draft ISO standard under committee review. The design of the propose d radiation warning sign and the proposed implementation strategy outlined in the draft ISO standard is presented. (authors)

  5. Standardization of Sign Languages

    Science.gov (United States)

    Adam, Robert

    2015-01-01

    Over the years attempts have been made to standardize sign languages. This form of language planning has been tackled by a variety of agents, most notably teachers of Deaf students, social workers, government agencies, and occasionally groups of Deaf people themselves. Their efforts have most often involved the development of sign language books…

  6. Signs of political economy

    Directory of Open Access Journals (Sweden)

    Bernard Lamizet

    2015-12-01

    Full Text Available Like any political system, economy is a system of signs and representations. The Semiotics of economy elaborates its analytical methods to interpret such signs, which give meaning to the economy by representing its performances in public debate and in the media. Four major features distinguish the Semiotics of political economy from other semiotic forms or other systems of information and political representation. First of all, the relationship between the signification of the economy and the real or the imaginary phenomena to which they refer always pertains to the order of values. The second characteristic of economic signs is the significance of the state of lack they express. The third characteristic of signs of the economy is the form of sign production, which can be designated by the concept of emission of signs and their diffusion. Finally, as all signs, the economic sign is arbitrary. In the field of Economics, such arbitrariness does not imply that the Subject is free to superimpose whatever value to the signs themselves, but refers to the rupture between the world and its possible transformation. The very meaning of the word economy is here at stake. Oikos, in Greek (the term from which the word economy is derived refers to a known, familiar space. Economy transforms the real, natural world into a symbolic social world, into a world of relations with others whom we recognise and whose actions are relatively predictable. It might be useful to consider the contemporary issue of debt, its implications and its multiple meanings, which includes both the ethical and moral dimension of the condemnation of debt as well as the imaginary political dimension based on the expression of an idea of independence.

  7. The city as a sign

    DEFF Research Database (Denmark)

    Kharlamov, Nikita

    2012-01-01

    . This question is tackled through Jaan Valsiner’s notions of semiotic mediation and regulation. I specifically focus on spatial signs that humans use to regulate the meaning-making process that creates as meaningful what Georges Perec called species of spaces, such as towns and cities. “The city,” from...... this standpoint, becomes one of the most important signs that mediate and regulate our experience of environments we inhabit. I discuss a number of theoretical and methodological directions in which this framework could be further developed to revive the urban, or settlement, psychology, which failed to develop...... Werner, and Bernard Kaplan, and developed as cultural-developmental approach by Jaan Valsiner, the proposed framework centers on the experience of individual organismic relating to spatial environment. I draw on the work of Manuel Castells, Edward Soja, and Yi-Fu Tuan to conceptualize the emergence...

  8. The sign learning theory

    African Journals Online (AJOL)

    KING OF DAWN

    The sign learning theory also holds secrets that could be exploited in accomplishing motor tasks. ... Introduction ... In his classic work: Cognitive Map in Rats and Men (1948),Tolman talked about five groups of experiments viz: latent learning ...

  9. Crocodile jaw sign

    Directory of Open Access Journals (Sweden)

    Brij Sharma

    2016-01-01

    Full Text Available This teaching image highlights the CT abdominal imaging finding of 'crocodile jaw sign' which should raise concern about the presence of an incomplete annular pancreas which causes partial encasement of the duodenum.

  10. Adolf Kussmaul and Kussmaul's sign

    Directory of Open Access Journals (Sweden)

    Navreet Singh

    2015-01-01

    Full Text Available Kussmaul's has provided us with three important signs: Pulses paradoxus, Kussmaul's sign and Kussmaul Breathing. This article discusses Kussmaul's sign, its discovery, first description, pathophyiology and exceptions.

  11. Computational triadic algebras of signs

    Energy Technology Data Exchange (ETDEWEB)

    Zadrozny, W. [T.J. Watson Research Center, Yorktown Heights, NY (United States)

    1996-12-31

    We present a finite model of Peirce`s ten classes of signs. We briefly describe Peirce`s taxonomy of signs; we prove that any finite collection of signs can be extended to a finite algebra of signs in which all interpretants are themselves being interpreted; and we argue that Peirce`s ten classes of signs can be defined using constraints on algebras of signs. The paper opens the possibility of defining multimodal cognitive agents using Peirce`s classes of signs, and is a first step towards building a computational logic of signs based on Peirce`s taxonomies.

  12. Toward the Ideal Signing Avatar

    Directory of Open Access Journals (Sweden)

    Nicoletta Adamo-Villani

    2016-06-01

    Full Text Available The paper discusses ongoing research on the effects of a signing avatar's modeling/rendering features on the perception of sign language animation. It reports a recent study that aimed to determine whether a character's visual style has an effect on how signing animated characters are perceived by viewers. The stimuli of the study were two polygonal characters presenting two different visual styles: stylized and realistic. Each character signed four sentences. Forty-seven participants with experience in American Sign Language (ASL viewed the animated signing clips in random order via web survey. They (1 identified the signed sentences (if recognizable, (2 rated their legibility, and (3 rated the appeal of the signing avatar. Findings show that while character's visual style does not have an effect on subjects' perceived legibility of the signs and sign recognition, it has an effect on subjects' interest in the character. The stylized signing avatar was perceived as more appealing than the realistic one.

  13. The Forbidden Signs

    DEFF Research Database (Denmark)

    Kilstrup, Mogens

    2016-01-01

    While the field of semiotics has been active since it was started by Peirce, it appears like the last decade has been especially productive with a number of important new concepts being developed within the biosemiotics community. The novel concept of the Semiotic scaffold by Hoffmeyer is an impo......While the field of semiotics has been active since it was started by Peirce, it appears like the last decade has been especially productive with a number of important new concepts being developed within the biosemiotics community. The novel concept of the Semiotic scaffold by Hoffmeyer...... is an important addition that offers insight into the hardware requirements for bio-semiosis. As any type of semiosis must be dependent upon Semiotic scaffolds, I recently argued that the process of semiosis has to be divided into two separate processes of sign establishment and sign interpretation....... I also show that biological semiosis offers examples of forbidden signs, where the faulty interpretation of signs may lead to decimation of whole evolutionary lines of organisms. A new concept of Evolutionary memory which is applicable to both human and biological semiosis is explained...

  14. Sign Language Web Pages

    Science.gov (United States)

    Fels, Deborah I.; Richards, Jan; Hardman, Jim; Lee, Daniel G.

    2006-01-01

    The World Wide Web has changed the way people interact. It has also become an important equalizer of information access for many social sectors. However, for many people, including some sign language users, Web accessing can be difficult. For some, it not only presents another barrier to overcome but has left them without cultural equality. The…

  15. Buffer Zone Sign Template

    Science.gov (United States)

    The certified pesticide applicator is required to post a comparable sign, designating a buffer zone around the soil fumigant application block in order to control exposure risk. It must include the don't walk symbol, product name, and applicator contact.

  16. Flemish Sign Language Standardisation

    Science.gov (United States)

    Van Herreweghe, Mieke; Vermeerbergen, Myriam

    2009-01-01

    In 1997, the Flemish Deaf community officially rejected standardisation of Flemish Sign Language. It was a bold choice, which at the time was not in line with some of the decisions taken in the neighbouring countries. In this article, we shall discuss the choices the Flemish Deaf community has made in this respect and explore why the Flemish Deaf…

  17. Traffic signs recognition for driving assistance

    Science.gov (United States)

    Sai Sangram Reddy, Yatham; Karthik, Devareddy; Rana, Nikunj; Jasmine Pemeena Priyadarsini, M.; Rajini, G. K.; Naseera, Shaik

    2017-11-01

    In the current circumstances with the innovative headway, we must be able to provide assistance to the driving in recognising the traffic signs on the roads. At present time, many reviews are being directed moving in the direction of the usage of a keen Traffic Systems. One field of this exploration is driving support systems, and many reviews are being directed to create frameworks which distinguish and perceive street signs in front of the vehicle, and afterward utilize the data to advise the driver or to even control the vehicle by implementing this system on self-driving vehicles. In this paper we propose a method to detect the traffic sign board in a frame using HAAR cascading and then identifying the sign on it. The output may be either given out in voice or can be displayed as per the driver’s convenience. Each of the Traffic Sign is recognised using a database of images of symbols used to train the KNN classifier using open CV libraries.

  18. Planetary Vital Signs

    Science.gov (United States)

    Kennel, Charles; Briggs, Stephen; Victor, David

    2016-07-01

    The climate is beginning to behave in unusual ways. The global temperature reached unprecedented highs in 2015 and 2016, which led climatologists to predict an enormous El Nino that would cure California's record drought. It did not happen the way they expected. That tells us just how unreliable temperature has become as an indicator of important aspects of climate change. The world needs to go beyond global temperature to a set of planetary vital signs. Politicians should not over focus policy on one indicator. They need to look at the balance of evidence. A coalition of scientists and policy makers should start to develop vital signs at once, since they should be ready at the entry into force of the Paris Agreement in 2020. But vital signs are only the beginning. The world needs to learn how to use the vast knowledge we will be acquiring about climate change and its impacts. Is it not time to use all the tools at hand- observations from space and ground networks; demographic, economic and societal measures; big data statistical techniques; and numerical models-to inform politicians, managers, and the public of the evolving risks of climate change at global, regional, and local scales? Should we not think in advance of an always-on social and information network that provides decision-ready knowledge to those who hold the responsibility to act, wherever they are, at times of their choosing?

  19. The Danish Sign Language Dictionary

    DEFF Research Database (Denmark)

    Kristoffersen, Jette Hedegaard; Troelsgård, Thomas

    2010-01-01

    The entries of the The Danish Sign Language Dictionary have four sections:  Entry header: In this section the sign headword is shown as a photo and a gloss. The first occurring location and handshape of the sign are shown as icons.  Video window: By default the base form of the sign headword...... forms of the sign (only for classifier entries). In addition to this, frequent co-occurrences with the sign are shown in this section. The signs in the The Danish Sign Language Dictionary can be looked up through:  Handshape: Particular handshapes for the active and the passive hand can be specified...... to find signs that are not themselves lemmas in the dictionary, but appear in example sentences.  Topic: Topics can be chosen as search criteria from a list of 70 topics....

  20. Malaysian sign language dataset for automatic sign language ...

    African Journals Online (AJOL)

    Journal of Fundamental and Applied Sciences. Journal Home · ABOUT ... SL recognition system based on the Malaysian Sign Language (MSL). Implementation results are described. Keywords: sign language; pattern classification; database.

  1. Green's Theorem for Sign Data

    OpenAIRE

    Houston, Louis M.

    2012-01-01

    Sign data are the signs of signal added to noise. It is well known that a constant signal can be recovered from sign data. In this paper, we show that an integral over variant signal can be recovered from an integral over sign data based on the variant signal. We refer to this as a generalized sign data average. We use this result to derive a Green's theorem for sign data. Green's theorem is important to various seismic processing methods, including seismic migration. Results in this paper ge...

  2. Audiovisual signs and information science: an evaluation

    Directory of Open Access Journals (Sweden)

    Jalver Bethônico

    2006-12-01

    Full Text Available This work evaluates the relationship of Information Science with audiovisual signs, pointing out conceptual limitations, difficulties imposed by the verbal fundament of knowledge, the reduced use within libraries and the ways in the direction of a more consistent analysis of the audiovisual means, supported by the semiotics of Charles Peirce.

  3. Sign language typology: The contribution of rural sign languages

    NARCIS (Netherlands)

    de Vos, C.; Pfau, R.

    2015-01-01

    Since the 1990s, the field of sign language typology has shown that sign languages exhibit typological variation at all relevant levels of linguistic description. These initial typological comparisons were heavily skewed toward the urban sign languages of developed countries, mostly in the Western

  4. Sign language perception research for improving automatic sign language recognition

    NARCIS (Netherlands)

    Ten Holt, G.A.; Arendsen, J.; De Ridder, H.; Van Doorn, A.J.; Reinders, M.J.T.; Hendriks, E.A.

    2009-01-01

    Current automatic sign language recognition (ASLR) seldom uses perceptual knowledge about the recognition of sign language. Using such knowledge can improve ASLR because it can give an indication which elements or phases of a sign are important for its meaning. Also, the current generation of

  5. Sign Lowering and Phonetic Reduction in American Sign Language.

    Science.gov (United States)

    Tyrone, Martha E; Mauk, Claude E

    2010-04-01

    This study examines sign lowering as a form of phonetic reduction in American Sign Language. Phonetic reduction occurs in the course of normal language production, when instead of producing a carefully articulated form of a word, the language user produces a less clearly articulated form. When signs are produced in context by native signers, they often differ from the citation forms of signs. In some cases, phonetic reduction is manifested as a sign being produced at a lower location than in the citation form. Sign lowering has been documented previously, but this is the first study to examine it in phonetic detail. The data presented here are tokens of the sign WONDER, as produced by six native signers, in two phonetic contexts and at three signing rates, which were captured by optoelectronic motion capture. The results indicate that sign lowering occurred for all signers, according to the factors we manipulated. Sign production was affected by several phonetic factors that also influence speech production, namely, production rate, phonetic context, and position within an utterance. In addition, we have discovered interesting variations in sign production, which could underlie distinctions in signing style, analogous to accent or voice quality in speech.

  6. Signs in Place

    DEFF Research Database (Denmark)

    Hamid, Salmiah Binti Abdul; Jensen, Ole B.; Silva, Victor

    Travelling in unfamiliar areas is usually very interesting, however it can also be stressful. People travel or move around in an urban space according to their needs, and the environment can also influence the way people move about from one place to another. If a person gets lost, a map or GPS can...... and geosemiotic studies with regards to the road traffic signs used in urban spaces. The paper ends with a discussion on how people choreograph their movement in their everyday life from two different perspectives: above vs. below....

  7. Signs In Place

    DEFF Research Database (Denmark)

    Hamid, Salmiah Binti Abdul; Jensen, Ole B.; Silva, Victor

    2012-01-01

    Travelling in unfamiliar areas is usually very interesting; however, it can also be stressful. People travel or move around in an urban space according to their needs, and the environment can influence the way people move about from one place to another. If a person gets lost, a map or GPS can...... and geosemiotic studies with regards to the road traffic signs used in urban spaces. The paper ends with a discussion on how people choreograph their movement in their everyday life from two different perspectives: above vs. below...

  8. Designing radiation protection signs

    International Nuclear Information System (INIS)

    Rodriguez, M.A.; Richey, C.L.

    1995-01-01

    Entry into hazardous areas without the proper protective equipment is extremely dangerous and must be prevented whenever possible. Current postings of radiological hazards at the Rocky Flats Environmental Technology Site (RFETS) do not incorporate recent findings concerning effective warning presentation. Warning information should be highly visible, quickly, and easily understood. While continuing to comply with industry standards (e.g., Department of Energy (DOE) guidelines), these findings can be incorporated into existing radiological sign design, making them more effective in terms of usability and compliance. Suggestions are provided for designing more effective postings within stated guidelines

  9. INFINITY construction contract signed

    Science.gov (United States)

    2010-01-01

    Key state and community leaders celebrated April 6 with the signing of a construction contract for the state-of-the-art INFINITY Science Center planned near John C. Stennis Space Center in south Mississippi. Gulfport Mayor George Schloegel (l to r), chair of non-profit INFINITY Science Center Inc., was joined for the signing ceremony at the Hancock Bank in Gulfport by Virginia Wagner, sister of late Hancock Bank President Leo Seal Jr.; and Roy Anderson III, president and CEO of Roy Anderson Corp. Seal was the first chair of INFINITY Science Center Inc., which has led in development of the project. Roy Anderson Corp. plans to begin construction on the 72,000-square-foot, $28 million science and education center in May. The Mississippi Department of Transportation (MDOT) also is set to begin construction of a $2 million access road to the new center. The April 6 ceremony was attended by numerous officials, including former Stennis Space Center Directors Jerry Hlass and Roy Estess; Mississippi Senate President Pro Tempore Billy Hewes, R-Gulfport; Mississippi Rep. Diane Peranich, D-Pass Christian; and MDOT Southern District Commissioner Wayne Brown.

  10. Psoas sign: a reevaluation

    International Nuclear Information System (INIS)

    Kye, Jong Sik; Lim, Jae Hoon; Yoon, Yup; Ahn, Chi Yul

    1987-01-01

    In general, the psoas sign has been known to be a reliabler index of presence of a retroperitoneal pathology. However, obliterated psoas margin may be caused by various other conditions in so far as the amount of fat around the psoas muscle is not enough to be visualized. On the other hand, retroperitoneal pathology does not always obliterates the psoas margin. Authors analyzed obliterated psoas margins in 72 patients by comparing simple radiographs and computed tomography, and attempted to explain the mechanism of obliterated psoas margin, on simple radiograph. The results are as follows : 1. The psoas margin is obliterated by the retroperitoneal pathology and various other conditions such as kidney-psoas contract, scanty extraperitoneal fat, scoliosis, bowel interposition and angled psoas muscle. 2. The psoas margin is preserved as far as the perinephric fat is intact and X-ray beam strikes the lateral margin of the psoas muscle tangentially. 3. The psoas sign is considered not to be a reliable index of a retroperitoneal pathology

  11. Sign language: an international handbook

    NARCIS (Netherlands)

    Pfau, R.; Steinbach, M.; Woll, B.

    2012-01-01

    Sign language linguists show here that all the questions relevant to the linguistic investigation of spoken languages can be asked about sign languages. Conversely, questions that sign language linguists consider - even if spoken language researchers have not asked them yet - should also be asked of

  12. Kinship in Mongolian Sign Language

    Science.gov (United States)

    Geer, Leah

    2011-01-01

    Information and research on Mongolian Sign Language is scant. To date, only one dictionary is available in the United States (Badnaa and Boll 1995), and even that dictionary presents only a subset of the signs employed in Mongolia. The present study describes the kinship system used in Mongolian Sign Language (MSL) based on data elicited from…

  13. Traffic sign detection and analysis

    DEFF Research Database (Denmark)

    Møgelmose, Andreas; Trivedi, Mohan M.; Moeslund, Thomas B.

    2012-01-01

    Traffic sign recognition (TSR) is a research field that has seen much activity in the recent decade. This paper introduces the problem and presents 4 recent papers on traffic sign detection and 4 recent papers on traffic sign classification. It attempts to extract recent trends in the field...

  14. Observer-dependent sign inversions of polarization singularities.

    Science.gov (United States)

    Freund, Isaac

    2014-10-15

    We describe observer-dependent sign inversions of the topological charges of vector field polarization singularities: C points (points of circular polarization), L points (points of linear polarization), and two virtually unknown singularities we call γ(C) and α(L) points. In all cases, the sign of the charge seen by an observer can change as she changes the direction from which she views the singularity. Analytic formulas are given for all C and all L point sign inversions.

  15. Signs in neuroradiology - part 1

    Energy Technology Data Exchange (ETDEWEB)

    Goncalves, Fabricio Guimaraes, E-mail: goncalves.neuroradio@gmail.co [McGill University Health Centre (MUHC), Montreal, Quebec (Canada). Montreal General Hospital; Barra, Filipe Ramos; Jovem, Cassio Lemos [Hospital Universitario de Brasilia, DF (Brazil). Dept. of Radiology and Imaging Diagnosis; Matos, Valter de Lima [Hospital Santa Luzia, Brasilia, DF (Brazil); Amaral, Lazaro Luis Faria do [MedImagem - Hospital da Beneficencia Portuguesa de Sao Paulo, SP (Brazil). Dept. of Neuroradiology; Carpio-O' Donovan, Raquel del [McGill University Health Centre (MUHC), Montreal, Quebec (Canada)

    2011-03-15

    The use of signs or analogies for interpretation and description of medical images is an old and common practice among radiologists. Comparison of findings with animals, food or objects is not unprecedented and routinely performed. Many signs are quite specific and, in some cases, pathognomonic. Indeed, notwithstanding their degree of specificity, signs may help in the characterization of certain diseases. Several neuroradiological signs have been already described. The authors will present 15 neuroradiology signs in the present essay, approaching their main characteristics, the significance of their role in the clinical practice, as well as their respective imaging findings. (author)

  16. Signs in neuroradiology - part 1

    International Nuclear Information System (INIS)

    Goncalves, Fabricio Guimaraes; Amaral, Lazaro Luis Faria do

    2011-01-01

    The use of signs or analogies for interpretation and description of medical images is an old and common practice among radiologists. Comparison of findings with animals, food or objects is not unprecedented and routinely performed. Many signs are quite specific and, in some cases, pathognomonic. Indeed, notwithstanding their degree of specificity, signs may help in the characterization of certain diseases. Several neuroradiological signs have been already described. The authors will present 15 neuroradiology signs in the present essay, approaching their main characteristics, the significance of their role in the clinical practice, as well as their respective imaging findings. (author)

  17. Translating Signs, Producing Subjects

    Directory of Open Access Journals (Sweden)

    Brett Neilson

    2009-08-01

    Full Text Available This paper moves between two streets: Liverpool Road in the Sydney suburb of Ashfield and Via Sarpi in the Italian city of Milan. What connects these streets is that both have become important sites for businesses in the Chinese diaspora. Moreover, both are streets on which locals have expressed desires for Chinese signs to be translated into the national lingua franca. The paper argues that the cultural politics inherent in this demand for translation cannot be fully understood in the context of national debates about diversity and integration. It is also necessary to consider the emergence of the official Chinese Putonghua as global language, which competes with English but also colonizes dialects and minority languages. In the case of these dual language signs, the space between languages can neither be reduced to a contact zone of minority and majority cultures nor celebrated as a ‘third space’ where the power relations implied by such differences are subverted. At stake is rather a space characterised by what Naoki Sakai calls the schema of co-figuration, which allows the representation of translation as the passage between two equivalents that resemble each other and thus makes possible their determination as conceptually different and comparable. Drawing on arguments about translation and citizenship, the paper critically interrogates the ethos of interchangeability implied by this regime of translation. A closing argument is made for a vision of the common that implies neither civilisational harmony nor the translation of all values into a general equivalent. Primary sources include government reports, internet texts and media stories. These are analyzed using techniques of discourse analysis and interpreted with the help of secondary literature concerning globalisation, language and migration. The disciplinary matrix cuts and mixes between cultural studies, translation studies, citizenship studies, globalization studies and

  18. Negation switching invariant signed graphs

    Directory of Open Access Journals (Sweden)

    Deepa Sinha

    2014-04-01

    Full Text Available A signed graph (or, $sigraph$ in short is a graph G in which each edge x carries a value $\\sigma(x \\in \\{-, +\\}$ called its sign. Given a sigraph S, the negation $\\eta(S$ of the sigraph S is a sigraph obtained from S by reversing the sign of every edge of S. Two sigraphs $S_{1}$ and $S_{2}$ on the same underlying graph are switching equivalent if it is possible to assign signs `+' (`plus' or `-' (`minus' to vertices of $S_{1}$ such that by reversing the sign of each of its edges that has received opposite signs at its ends, one obtains $S_{2}$. In this paper, we characterize sigraphs which are negation switching invariant and also see for what sigraphs, S and $\\eta (S$ are signed isomorphic.

  19. Sign language comprehension: the case of Spanish sign language.

    Science.gov (United States)

    Rodríguez Ortiz, I R

    2008-01-01

    This study aims to answer the question, how much of Spanish Sign Language interpreting deaf individuals really understand. Study sampling included 36 deaf people (deafness ranging from severe to profound; variety depending on the age at which they learned sign language) and 36 hearing people who had good knowledge of sign language (most were interpreters). Sign language comprehension was assessed using passages of secondary level. After being exposed to the passages, the participants had to tell what they had understood about them, answer a set of related questions, and offer a title for the passage. Sign language comprehension by deaf participants was quite acceptable but not as good as that by hearing signers who, unlike deaf participants, were not only late learners of sign language as a second language but had also learned it through formal training.

  20. Ergonomics and design: traffic sign and street name sign.

    Science.gov (United States)

    Moroni, Janaina Luisa da Silva; Aymone, José Luís Farinatti

    2012-01-01

    This work proposes a design methodology using ergonomics and anthropometry concepts applied to traffic sign and street name sign projects. Initially, a literature revision on cognitive ergonomics and anthropometry is performed. Several authors and their design methodologies are analyzed and the aspects to be considered in projects of traffic and street name signs are selected and other specific aspects are proposed for the design methodology. A case study of the signs of "Street of Antiques" in Porto Alegre city is presented. To do that, interviews with the population are made to evaluate the current situation of signs. After that, a new sign proposal with virtual prototyping is done using the developed methodology. The results obtained with new interviews about the proposal show the user satisfaction and the importance of cognitive ergonomics to development of this type of urban furniture.

  1. FAST DRAWING OF TRAFFIC SIGN USING MOBILE MAPPING SYSTEM

    Directory of Open Access Journals (Sweden)

    Q. Yao

    2016-06-01

    Full Text Available Traffic sign provides road users with the specified instruction and information to enhance traffic safety. Automatic detection of traffic sign is important for navigation, autonomous driving, transportation asset management, etc. With the advance of laser and imaging sensors, Mobile Mapping System (MMS becomes widely used in transportation agencies to map the transportation infrastructure. Although many algorithms of traffic sign detection are developed in the literature, they are still a tradeoff between the detection speed and accuracy, especially for the large-scale mobile mapping of both the rural and urban roads. This paper is motivated to efficiently survey traffic signs while mapping the road network and the roadside landscape. Inspired by the manual delineation of traffic sign, a drawing strategy is proposed to quickly approximate the boundary of traffic sign. Both the shape and color prior of the traffic sign are simultaneously involved during the drawing process. The most common speed-limit sign circle and the statistic color model of traffic sign are studied in this paper. Anchor points of traffic sign edge are located with the local maxima of color and gradient difference. Starting with the anchor points, contour of traffic sign is drawn smartly along the most significant direction of color and intensity consistency. The drawing process is also constrained by the curvature feature of the traffic sign circle. The drawing of linear growth is discarded immediately if it fails to form an arc over some steps. The Kalman filter principle is adopted to predict the temporal context of traffic sign. Based on the estimated point,we can predict and double check the traffic sign in consecutive frames.The event probability of having a traffic sign over the consecutive observations is compared with the null hypothesis of no perceptible traffic sign. The temporally salient traffic sign is then detected statistically and automatically as the rare

  2. Fast Drawing of Traffic Sign Using Mobile Mapping System

    Science.gov (United States)

    Yao, Q.; Tan, B.; Huang, Y.

    2016-06-01

    Traffic sign provides road users with the specified instruction and information to enhance traffic safety. Automatic detection of traffic sign is important for navigation, autonomous driving, transportation asset management, etc. With the advance of laser and imaging sensors, Mobile Mapping System (MMS) becomes widely used in transportation agencies to map the transportation infrastructure. Although many algorithms of traffic sign detection are developed in the literature, they are still a tradeoff between the detection speed and accuracy, especially for the large-scale mobile mapping of both the rural and urban roads. This paper is motivated to efficiently survey traffic signs while mapping the road network and the roadside landscape. Inspired by the manual delineation of traffic sign, a drawing strategy is proposed to quickly approximate the boundary of traffic sign. Both the shape and color prior of the traffic sign are simultaneously involved during the drawing process. The most common speed-limit sign circle and the statistic color model of traffic sign are studied in this paper. Anchor points of traffic sign edge are located with the local maxima of color and gradient difference. Starting with the anchor points, contour of traffic sign is drawn smartly along the most significant direction of color and intensity consistency. The drawing process is also constrained by the curvature feature of the traffic sign circle. The drawing of linear growth is discarded immediately if it fails to form an arc over some steps. The Kalman filter principle is adopted to predict the temporal context of traffic sign. Based on the estimated point,we can predict and double check the traffic sign in consecutive frames.The event probability of having a traffic sign over the consecutive observations is compared with the null hypothesis of no perceptible traffic sign. The temporally salient traffic sign is then detected statistically and automatically as the rare event of having a

  3. LSE-Sign: A lexical database for Spanish Sign Language.

    Science.gov (United States)

    Gutierrez-Sigut, Eva; Costello, Brendan; Baus, Cristina; Carreiras, Manuel

    2016-03-01

    The LSE-Sign database is a free online tool for selecting Spanish Sign Language stimulus materials to be used in experiments. It contains 2,400 individual signs taken from a recent standardized LSE dictionary, and a further 2,700 related nonsigns. Each entry is coded for a wide range of grammatical, phonological, and articulatory information, including handshape, location, movement, and non-manual elements. The database is accessible via a graphically based search facility which is highly flexible both in terms of the search options available and the way the results are displayed. LSE-Sign is available at the following website: http://www.bcbl.eu/databases/lse/.

  4. Landsat 6 contract signed

    Science.gov (United States)

    Maggs, William Ward

    A new agreement provides $220 million for development and construction of the Landsat 6 remote sensing satellite and its ground systems. The contract, signed on March 31, 1988, by the Department of Commerce (DOC) and the Earth Observation Satellite (EOSAT) Company of Lanham, Md., came just days after approval of DOC's Landsat commercialization plan by subcommittees of the House and Senate appropriations committees.The Landsat 6 spacecraft is due to be launched into orbit on a Titan II rocket in June 1991 from Vandenburg Air Force Base, Calif. The satellite will carry an Enhanced Thematic Mapper (ETM) sensor, an instrument sensitive to electromagnetic radiation in seven ranges or bands of wavelengths. The satellite's payload will also include the Sea Wide Field Sensor (Sea-WiFS), designed to provide information on sea surface temperature and ocean color. The sensor is being developed in a cooperative effort by EOSAT and the National Aeronautics and Space Administration (NASA). A less certain passenger is a proposed 5-m resolution, three-band sensor sensitive to visible light. EOSAT is trying to find both private financing for the device and potential buyers of the high-resolution imagery that it could produce. The company has been actively courting U.S. television networks, which have in the past used imagery from the European Système Probatoire d'Observation de la Terre (SPOT) satellite for news coverage.

  5. Sociolinguistic Typology and Sign Languages

    OpenAIRE

    Adam Schembri; Jordan Fenlon; Kearsy Cormier; Trevor Johnston

    2018-01-01

    This paper examines the possible relationship between proposed social determinants of morphological ‘complexity’ and how this contributes to linguistic diversity, specifically via the typological nature of the sign languages of deaf communities. We sketch how the notion of morphological complexity, as defined by Trudgill (2011), applies to sign languages. Using these criteria, sign languages appear to be languages with low to moderate levels of morphological complexity. This may partly reflec...

  6. Making an Online Dictionary of New Zealand Sign Language ...

    African Journals Online (AJOL)

    ... is n example of a contemporary sign language dictionary that leverages the 21st ... informed development of this bilingual, bi-directional, multimedia dictionary. ... and dealing with sociolinguistic variation in the selection and performance of ...

  7. Awareness of Deaf Sign Language and Gang Signs.

    Science.gov (United States)

    Smith, Cynthia; Morgan, Robert L.

    There have been increasing incidents of innocent people who use American Sign Language (ASL) or another form of sign language being victimized by gang violence due to misinterpretation of ASL hand formations. ASL is familiar to learners with a variety of disabilities, particularly those in the deaf community. The problem is that gang members have…

  8. Automatic sign language recognition inspired by human sign perception

    NARCIS (Netherlands)

    Ten Holt, G.A.

    2010-01-01

    Automatic sign language recognition is a relatively new field of research (since ca. 1990). Its objectives are to automatically analyze sign language utterances. There are several issues within the research area that merit investigation: how to capture the utterances (cameras, magnetic sensors,

  9. Inuit Sign Language: a contribution to sign language typology

    NARCIS (Netherlands)

    Schuit, J.; Baker, A.; Pfau, R.

    2011-01-01

    Sign language typology is a fairly new research field and typological classifications have yet to be established. For spoken languages, these classifications are generally based on typological parameters; it would thus be desirable to establish these for sign languages. In this paper, different

  10. Signs of the arctic: Typological aspects of Inuit Sign Language

    NARCIS (Netherlands)

    Schuit, J.M.

    2014-01-01

    In this thesis, the native sign language used by deaf Inuit people is described. Inuit Sign Language (IUR) is used by less than 40 people as their sole means of communication, and is therefore highly endangered. Apart from the description of IUR as such, an additional goal is to contribute to the

  11. Ranks of dense alternating sign matrices and their sign patterns

    Czech Academy of Sciences Publication Activity Database

    Fiedler, Miroslav; Gao, W.; Hall, F.J.; Jing, G.; Li, Z.; Stroev, M.

    2015-01-01

    Roč. 471, April (2015), s. 109-121 ISSN 0024-3795 R&D Projects: GA ČR(CZ) GA14-07880S Institutional support: RVO:67985840 Keywords : alternating sign matrix * dense matrix * sign pattern matrix Subject RIV: BA - General Mathematics Impact factor: 0.965, year: 2015 http://www.sciencedirect.com/science/article/pii/S0024379515000257

  12. Planning Sign Languages: Promoting Hearing Hegemony? Conceptualizing Sign Language Standardization

    Science.gov (United States)

    Eichmann, Hanna

    2009-01-01

    In light of the absence of a codified standard variety in British Sign Language and German Sign Language ("Deutsche Gebardensprache") there have been repeated calls for the standardization of both languages primarily from outside the Deaf community. The paper is based on a recent grounded theory study which explored perspectives on sign…

  13. Africa: signs of hope?

    Directory of Open Access Journals (Sweden)

    J.F. Kirsten

    2008-07-01

    Full Text Available The dawning of the 21st century generally brought new hope to African leaders and countless thousands of ordinary citizens of many countries on the continent. The first signs of a new turn of events shone through by the end of the last decade of the previous century. This was manifested by economic growth rates that started to pick up in a number of African states, by pro-democracy movements which in country after country succeeded in replacing authoritarian regimes, and by the winding down and termination of some of Africa’s most devastating wars. The results of this analysis confirm the above-mentioned positive political, economic and conflict trends in Africa. It is clearly a significant turn of events given the well-known political and economic predicament with which Africa is struggling. When this negative legacy and Cold War background of Africa is considered, the importance of present developments is clear to see. The identified heightened sense of purpose among the leaders and peoples of Africa and the changed mood and need among Africans to take charge of their own future that found expression in the New Partnership for Africa’s Development (NEPAD are indeed significant and bode well for the future of the continent. A word of warning here is, however, necessary. Our conduct with Africa must be very cautious and we must guard against over-optimism and the exaggerated belief that Africa is now on a trajectory of sustained development and peace. We cannot generalise about Africa – for that the continent is just too big and diverse from a geographical, cultural, economic and political point of view.

  14. Signs of the Times

    Science.gov (United States)

    Villano, Matt

    2009-01-01

    There's no question that in airports, train stations, and student unions alike, digital signage solutions have become efficient and effective ways of communicating important information directly to broad bases of users. The solutions are affordable; they're eco-friendly; and they're growing in popularity every year. Still, particularly in the…

  15. Learning to Detect Traffic Signs

    DEFF Research Database (Denmark)

    Møgelmose, Andreas; Trivedi, Mohan M.; Moeslund, Thomas B.

    2012-01-01

    This study compares the performance of sign detection based on synthetic training data to the performance of detection based on real-world training images. Viola-Jones detectors are created for 4 different traffic signs with both synthetic and real data, and varying numbers of training samples. T...

  16. Issues in Sign Language Lexicography

    DEFF Research Database (Denmark)

    Zwitserlood, Inge; Kristoffersen, Jette Hedegaard; Troelsgård, Thomas

    2013-01-01

    ge lexicography has thus far been a relatively obscure area in the world of lexicography. Therefore, this article will contain background information on signed languages and the communities in which they are used, on the lexicography of sign languages, the situation in the Netherlands as well...

  17. Concise Lexicon for Sign Linguistics

    NARCIS (Netherlands)

    dr. Jan Nijen Twilhaar; Dr. Beppie van den Bogaerde

    2016-01-01

    This extensive, well-researched and clearly formatted lexicon of a wide variety of linguistic terms is a long overdue. It is an extremely welcome addition to the bookshelves of sign language teachers, interpreters, linguists, learners and other sign language users, and of course of the Deaf

  18. Direct and indirect methods for the quantification of leg volume: Comparison between water displacement volumetry, the disk model method and the frustum sign model method, using the correlation coefficient and the limits of agreement

    NARCIS (Netherlands)

    D.M.K.S. Kaulesar Sukul (D. M K S); P.Th. den Hoed (Pieter); T. Johannes (Tanja); R. van Dolder (R.); E. Benda (Eric)

    1993-01-01

    textabstractVolume changes can be measured either directly by water-displacement volumetry or by various indirect methods in which calculation of the volume is based on circumference measurements. The aim of the present study was to determine the most appropriate indirect method for lower leg volume

  19. MIXED SIGNS IN THE SEMIOTICS OF ENGLISH EDUCATIONAL DISCOURSE

    Directory of Open Access Journals (Sweden)

    Goncharova Darya Anatolyevna

    2014-11-01

    Full Text Available The article deals with the linguosemiotic explication of nomination process in educational discourse by signs of different types – verbal, non-verbal, mixed. Verbal signs are presented by lexical units, nominating agents, clients, non/material resources, artifacts, processes, incentives and forms of pedagogical influence. The non-verbal signs include paralinguistic signs (gestures, facial expressions, postures of the participants of the educational process; color-semiotic signs (coloremas, in which the information-impacting vector is directed to a color indication of messages that is important for successful educational communication; visual elements representing traditional British values and concepts; sound signs, topographic signs, that add meaning to the overall significance of a mixed sign. In linguosemiotic system of educational discourse, the mixed signs form the most numerous group and are represented mainly by emblems, anthems and school songs of secondary schools. The author checks and verifies the hypothesis that the semiotics of the educational process in British secondary schools includes the extensive and complex system of mixed signs, which consist of two non-homogeneous parts – verbal and non-verbal – belonging to other sign systems rather than natural language and expressed via graphics, colors, music, etc. Linguistic analysis is applied to the study of the semiotic space of educational discourse. The article determines that in the context of educational communication, verbal, non-verbal and mixed signs form the unity of the linguistic and extralinguistic parameters, being in different relationships and presenting a multilayer intersection of lexical groups, graphic description, color schemes and music accompaniment.

  20. Sign Inference for Dynamic Signed Networks via Dictionary Learning

    Directory of Open Access Journals (Sweden)

    Yi Cen

    2013-01-01

    Full Text Available Mobile online social network (mOSN is a burgeoning research area. However, most existing works referring to mOSNs deal with static network structures and simply encode whether relationships among entities exist or not. In contrast, relationships in signed mOSNs can be positive or negative and may be changed with time and locations. Applying certain global characteristics of social balance, in this paper, we aim to infer the unknown relationships in dynamic signed mOSNs and formulate this sign inference problem as a low-rank matrix estimation problem. Specifically, motivated by the Singular Value Thresholding (SVT algorithm, a compact dictionary is selected from the observed dataset. Based on this compact dictionary, the relationships in the dynamic signed mOSNs are estimated via solving the formulated problem. Furthermore, the estimation accuracy is improved by employing a dictionary self-updating mechanism.

  1. Sociolinguistic Typology and Sign Languages.

    Science.gov (United States)

    Schembri, Adam; Fenlon, Jordan; Cormier, Kearsy; Johnston, Trevor

    2018-01-01

    This paper examines the possible relationship between proposed social determinants of morphological 'complexity' and how this contributes to linguistic diversity, specifically via the typological nature of the sign languages of deaf communities. We sketch how the notion of morphological complexity, as defined by Trudgill (2011), applies to sign languages. Using these criteria, sign languages appear to be languages with low to moderate levels of morphological complexity. This may partly reflect the influence of key social characteristics of communities on the typological nature of languages. Although many deaf communities are relatively small and may involve dense social networks (both social characteristics that Trudgill claimed may lend themselves to morphological 'complexification'), the picture is complicated by the highly variable nature of the sign language acquisition for most deaf people, and the ongoing contact between native signers, hearing non-native signers, and those deaf individuals who only acquire sign languages in later childhood and early adulthood. These are all factors that may work against the emergence of morphological complexification. The relationship between linguistic typology and these key social factors may lead to a better understanding of the nature of sign language grammar. This perspective stands in contrast to other work where sign languages are sometimes presented as having complex morphology despite being young languages (e.g., Aronoff et al., 2005); in some descriptions, the social determinants of morphological complexity have not received much attention, nor has the notion of complexity itself been specifically explored.

  2. Sociolinguistic Typology and Sign Languages

    Science.gov (United States)

    Schembri, Adam; Fenlon, Jordan; Cormier, Kearsy; Johnston, Trevor

    2018-01-01

    This paper examines the possible relationship between proposed social determinants of morphological ‘complexity’ and how this contributes to linguistic diversity, specifically via the typological nature of the sign languages of deaf communities. We sketch how the notion of morphological complexity, as defined by Trudgill (2011), applies to sign languages. Using these criteria, sign languages appear to be languages with low to moderate levels of morphological complexity. This may partly reflect the influence of key social characteristics of communities on the typological nature of languages. Although many deaf communities are relatively small and may involve dense social networks (both social characteristics that Trudgill claimed may lend themselves to morphological ‘complexification’), the picture is complicated by the highly variable nature of the sign language acquisition for most deaf people, and the ongoing contact between native signers, hearing non-native signers, and those deaf individuals who only acquire sign languages in later childhood and early adulthood. These are all factors that may work against the emergence of morphological complexification. The relationship between linguistic typology and these key social factors may lead to a better understanding of the nature of sign language grammar. This perspective stands in contrast to other work where sign languages are sometimes presented as having complex morphology despite being young languages (e.g., Aronoff et al., 2005); in some descriptions, the social determinants of morphological complexity have not received much attention, nor has the notion of complexity itself been specifically explored. PMID:29515506

  3. Sociolinguistic Typology and Sign Languages

    Directory of Open Access Journals (Sweden)

    Adam Schembri

    2018-02-01

    Full Text Available This paper examines the possible relationship between proposed social determinants of morphological ‘complexity’ and how this contributes to linguistic diversity, specifically via the typological nature of the sign languages of deaf communities. We sketch how the notion of morphological complexity, as defined by Trudgill (2011, applies to sign languages. Using these criteria, sign languages appear to be languages with low to moderate levels of morphological complexity. This may partly reflect the influence of key social characteristics of communities on the typological nature of languages. Although many deaf communities are relatively small and may involve dense social networks (both social characteristics that Trudgill claimed may lend themselves to morphological ‘complexification’, the picture is complicated by the highly variable nature of the sign language acquisition for most deaf people, and the ongoing contact between native signers, hearing non-native signers, and those deaf individuals who only acquire sign languages in later childhood and early adulthood. These are all factors that may work against the emergence of morphological complexification. The relationship between linguistic typology and these key social factors may lead to a better understanding of the nature of sign language grammar. This perspective stands in contrast to other work where sign languages are sometimes presented as having complex morphology despite being young languages (e.g., Aronoff et al., 2005; in some descriptions, the social determinants of morphological complexity have not received much attention, nor has the notion of complexity itself been specifically explored.

  4. 3 CFR - Presidential Signing Statements

    Science.gov (United States)

    2010-01-01

    ... basis of policy disagreements. At the same time, such signing statements serve a legitimate function in... United States, its departments, agencies, or entities, its officers, employees, or agents, or any other...

  5. Warning Signs of Childhood Emergencies

    Science.gov (United States)

    ... signs - and act on them - by taking a first aid class and learning CPR (cardiopulmonary resuscitation). Your local hospital, ... Care For You Copyright © American College of Emergency Physicians ...

  6. Quantifiers in Russian Sign Language

    NARCIS (Netherlands)

    Kimmelman, V.; Paperno, D.; Keenan, E.L.

    2017-01-01

    After presenting some basic genetic, historical and typological information about Russian Sign Language, this chapter outlines the quantification patterns it expresses. It illustrates various semantic types of quantifiers, such as generalized existential, generalized universal, proportional,

  7. CDC Vital Signs: Legionnaires' Disease

    Science.gov (United States)

    ... gov . Vital Signs Topics Covered Alcohol Antibiotic Resistance Cancer Cardiovascular Diseases Diseases & Conditions Food Safety Healthcare-associated Infections Healthy Living HIV / AIDS Injury, Violence & Safety Motor Vehicle Safety Obesity ...

  8. Diagnosing Dementia—Positive Signs

    Science.gov (United States)

    ... Navigation Bar Home Current Issue Past Issues Diagnosing Dementia—Positive Signs Past Issues / Fall 2007 Table of ... easy, affordable blood test that could accurately diagnose Alzheimer's disease (AD)—even before symptoms began to show? Researchers ...

  9. Single Sign On Internal (SSOi)

    Data.gov (United States)

    Department of Veterans Affairs — Provides single sign-on solution for internal facing VA applications. Allows internal users access to a variety of VA systems and applications using a reduced set of...

  10. Aging changes in vital signs

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/004019.htm Aging changes in vital signs To use the sharing ... Normal body temperature does not change much with aging. But as you get older, it becomes harder ...

  11. Vital Signs-Secondhand Smoke

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the February 2015 CDC Vital Signs report. Secondhand smoke kills more than 400 infants and 41,000 adult nonsmokers every year. Learn what can be done to prevent secondhand smoke exposure.

  12. Kinematic parameters of signed verbs.

    Science.gov (United States)

    Malaia, Evie; Wilbur, Ronnie B; Milkovic, Marina

    2013-10-01

    Sign language users recruit physical properties of visual motion to convey linguistic information. Research on American Sign Language (ASL) indicates that signers systematically use kinematic features (e.g., velocity, deceleration) of dominant hand motion for distinguishing specific semantic properties of verb classes in production ( Malaia & Wilbur, 2012a) and process these distinctions as part of the phonological structure of these verb classes in comprehension ( Malaia, Ranaweera, Wilbur, & Talavage, 2012). These studies are driven by the event visibility hypothesis by Wilbur (2003), who proposed that such use of kinematic features should be universal to sign language (SL) by the grammaticalization of physics and geometry for linguistic purposes. In a prior motion capture study, Malaia and Wilbur (2012a) lent support for the event visibility hypothesis in ASL, but there has not been quantitative data from other SLs to test the generalization to other languages. The authors investigated the kinematic parameters of predicates in Croatian Sign Language ( Hrvatskom Znakovnom Jeziku [HZJ]). Kinematic features of verb signs were affected both by event structure of the predicate (semantics) and phrase position within the sentence (prosody). The data demonstrate that kinematic features of motion in HZJ verb signs are recruited to convey morphological and prosodic information. This is the first crosslinguistic motion capture confirmation that specific kinematic properties of articulator motion are grammaticalized in other SLs to express linguistic features.

  13. Integrated sign management system : ADOT maintenance group

    Science.gov (United States)

    2003-12-01

    The Arizona Department of Transportation (ADOT) maintains and manages an inventory of roadway signs. Before the implementation of this project, sign technicians maintained inventory records on individual laptops to track their daily sign maintenance ...

  14. Algorithmic tools for interpreting vital signs.

    Science.gov (United States)

    Rathbun, Melina C; Ruth-Sahd, Lisa A

    2009-07-01

    Today's complex world of nursing practice challenges nurse educators to develop teaching methods that promote critical thinking skills and foster quick problem solving in the novice nurse. Traditional pedagogies previously used in the classroom and clinical setting are no longer adequate to prepare nursing students for entry into practice. In addition, educators have expressed frustration when encouraging students to apply newly learned theoretical content to direct the care of assigned patients in the clinical setting. This article presents algorithms as an innovative teaching strategy to guide novice student nurses in the interpretation and decision making related to vital sign assessment in an acute care setting.

  15. Photonics approach to traffic signs

    Science.gov (United States)

    Litwin, Dariusz; Galas, Jacek; CzyŻewski, Adam; Rymsza, Barbara; Kornalewski, Leszek; Kryszczyński, Tadeusz; Mikucki, Jerzy; Wikliński, Piotr; Daszkiewicz, Marek; Malasek, Jacek

    2016-12-01

    The automotive industry has been always a driving force for all economies. Despite of its beneficial meaning to every society it brings also many issues including wide area of road safety. The latter has been enforced by the increasing number of cars and the dynamic development of the traffic as a whole. Road signs and traffic lights are crucial in context of good traffic arrangement and its fluency. Traffic designers are used to treat horizontal road signs independently of vertical signs. However, modern light sources and growing flexibility in shaping optical systems create opportunity to design more advanced and smart solutions. In this paper we present an innovative, multidisciplinary approach that consists in tight interdependence of different traffic signals. We describe new optical systems together with their influence on the perception of the road user. The analysis includes maintenance and visibility in different weather conditions. A special attention has been focused on intersections of complex geometry.

  16. Compiling a Sign Language Dictionary

    DEFF Research Database (Denmark)

    Kristoffersen, Jette Hedegaard; Troelsgård, Thomas

    2010-01-01

    As we began working on the Danish Sign Language (DTS) Dictionary, we soon realised the truth in the statement that a lexicographer has to deal with problems within almost any linguistic discipline. Most of these problems come down to establishing simple rules, rules that can easily be applied every...... – or are they homonyms?" and so on. Very often such questions demand further research and can't be answered sufficiently through a simple standard formula. Therefore lexicographic work often seems like an endless series of compromises. Another source of compromise arises when you set out to decide which information...... this dilemma, as we see DTS learners and teachers as well as native DTS signers as our target users. In the following we will focus on four problem areas with particular relevance for the sign language lexicographer: Sign representation Spoken languague equivalents and mouth movements Example sentences Partial...

  17. Characteristic CT signs in oligodendrogliomas

    International Nuclear Information System (INIS)

    Marcu, H.; Vonofakos, D.; Hacker, H.

    1980-01-01

    Computed tomography offers valuable aid for improving the diagnostic capabilities for oligodendrogliomas. The authors have attempted to determine more precisely the CT characteristic signs for this type of tumor and to establish criteria for predicting malignancy grade. They can conclude that calcifications are the main signs which lead to the diagnosis of oligodendroglioma, as the most usual calcifying glioma. This finding was known before the CT era, but with the CT one can be more exact with regard to form, growth, number and density of the calcifications and especially the smallest of them, which are not to be seen on the conventional X-ray examination. The cyst formation is another feature of oligodendroglioma. The occurrence of contrast enhancement and cyst formation are the most characteristic signs of malignancy. (C.F.)

  18. Signs, dispositions, and semiotic scaffolding.

    Science.gov (United States)

    Fernández, Eliseo

    2015-12-01

    In theoretical work we distinguish living beings from inanimate objects on the basis of some paramount attributes, such as agency and autonomy. These abstract features are not directly accessible to our scrutiny, but we surmise their nature through observation of the purpose-oriented behavior of organisms. I intend to show that organismal purposefulness springs from the intrinsic, constitutive kind of finality that is the hallmark of all semiotic transactions. To this aim I develop a dispositionalist account of organismal causation based on a distinction between two kinds of causal dispositions: fixed (efficient) dispositions and traveling dispositions. Fixed dispositions are rigidly attached to physical structures and processes; these are the dispositions regularly invoked in current discussions of causal explanation. Traveling dispositions are able to move freely from one location to another by becoming embodied into suitable supporting media. I introduce these notions to articulate a view of semiosis I deem best suited to the life sciences, and contend that sign tokens are vehicles of traveling dispositions. This account places the origin of purposive behavior at the interaction of physical and semiotic causation. To properly motivate the discussion I briefly review some recent developments in the philosophy of science concerning various forms of causation invoked by scientists across disciplines to frame explanations and make predictions. The ensuing discussion gives particular prominence to mechanistic (as distinct from mechanicist) explanatory accounts of biological phenomena. This review is followed by a brief characterization of a "nomological machine," a comprehensive schema introduced and developed by Nancy Cartwright with the goal of explaining causal mechanisms in a general setting. By capitalizing on this model's heuristic virtues I seek to formulate a compelling view of the interactions between physical and semiotic causation at play in semiotic

  19. Hepatic dimple sign on CT

    Energy Technology Data Exchange (ETDEWEB)

    Matsumoto, Kunihiko; Nakajima, Teiichi; Ishikawa, Nobuyoshi; Ebihara, Reiko; Saida, Yukihisa

    1983-06-01

    The ''Dimple sign'' has been coined by Baltaxe et al. in 1974 and was said to be useful angiographic sign of avascular tumor. Similar dimple can be seen in the margin of the liver on CT examination of the hepatic tumors. We called this hepatic dimple sign and its clinical usefulness on CT examination was studied with 133 cases of hepatic tumors. Among 133 cases, there were 68 cases of hepatocellular carcinoma, 57 cases of metastatic liver tumor, 5 cases of hemangioma of the liver and 3 cases of hepatoblastoma. Hepatic dimple sign was recognized on 2 cases of metastatic liver tumor, 1 case of hemangioma, and 1 case of carcinoma of the gallbladder with hepatic infiltration. Cases experienced in the affiliated hospitals were also studied. A case of hepatocellular carcinoma and a case of metastatic liver tumor were evaluated. These tumors were relativly large measuring over 5cm in the greatest diameter and low density areas were apparent on plain CT. Therefore, dimples in the hepatic margin seen in CT scan did not contribute to the diagnostic accuracy of the liver tumor in these cases. (author).

  20. Hepatic dimple sign on CT

    International Nuclear Information System (INIS)

    Matsumoto, Kunihiko; Nakajima, Teiichi; Ishikawa, Nobuyoshi; Ebihara, Reiko; Saida, Yukihisa

    1983-01-01

    The ''Dimple sign'' has been coined by Baltaxe et al. in 1974 and was said to be useful angiographic sign of avascular tumor. Similar dimple can be seen in the margin of the liver on CT examination of the hepatic tumors. We called this hepatic dimple sign and its clinical usefulness on CT examination was studied with 133 cases of hepatic tumors. Among 133 cases, there were 68 cases of hepatocellular carcinoma, 57 cases of metastatic liver tumor, 5 cases of hemangioma of the liver and 3 cases of hepatoblastoma. Hepatic dimple sign was recognized on 2 cases of metastatic liver tumor, 1 case of hemangioma, and 1 case of carcinoma of the gallbladder with hepatic infiltration. Cases experienced in the affiliated hospitals were also studied. A case of hepatocellular carcinoma and a case of metastatic liver tumor were evaluated. These tumors were relativly large measuring over 5cm in the greatest diameter and low density areas were apparent on plain CT. Therefore, dimples in the hepatic margin seen in CT scan did not contribute to the diagnostic accuracy of the liver tumor in these cases. (author)

  1. BOOMERANG SIGN - A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Justin

    2016-01-01

    Full Text Available INTRODUCTION Boomerang sign is a transient abnormality at the level of splenium of corpus callosum in MRI seen in various conditions.[1-2] We do here report a case of malaria, which presented with the above findings. The transient appearance of such findings need not need any aggressive management, other than managing the underlying cause.

  2. Sign Languages of the World

    DEFF Research Database (Denmark)

    This handbook provides information on some 38 sign languages, including basic facts about each of the languages, structural aspects, history and culture of the Deaf communities, and history of research. The papers are all original, and each has been specifically written for the volume by an expert...

  3. Vital Signs - Child Passenger Safety

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the February 2014 CDC Vital Signs report. Over the past 10 years, more than 9,000 children 12 and under died in motor vehicle crashes, and a third who died in 2011 weren't buckled up. Buckling up is the best way to reduce injuries and save lives.

  4. Laryngopyocele: signs on computed tomography

    Energy Technology Data Exchange (ETDEWEB)

    Nazaroglu, Hasan E-mail: hnazarog@dicle.edu.tr; Oezates, Mustafa; Uyar, Asur; Deger, Emin; Simsek, Masum

    2000-01-01

    A laryngocele is an air-filled dilation of the saccule of the larynx. An infected laryngocele is called a laryngopyocele. Our experience with a case of laryngopyocele with signs on computed tomography before and after antibiotic therapy is presented since laryngopyocele is more unusual.

  5. Laryngopyocele: signs on computed tomography

    International Nuclear Information System (INIS)

    Nazaroglu, Hasan; Oezates, Mustafa; Uyar, Asur; Deger, Emin; Simsek, Masum

    2000-01-01

    A laryngocele is an air-filled dilation of the saccule of the larynx. An infected laryngocele is called a laryngopyocele. Our experience with a case of laryngopyocele with signs on computed tomography before and after antibiotic therapy is presented since laryngopyocele is more unusual

  6. 13 CFR 305.12 - Project sign.

    Science.gov (United States)

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Project sign. 305.12 Section 305... WORKS AND ECONOMIC DEVELOPMENT INVESTMENTS Requirements for Approved Projects § 305.12 Project sign. The... the construction period of a sign or signs at a conspicuous place at the Project site indicating that...

  7. Eye Gaze in Creative Sign Language

    Science.gov (United States)

    Kaneko, Michiko; Mesch, Johanna

    2013-01-01

    This article discusses the role of eye gaze in creative sign language. Because eye gaze conveys various types of linguistic and poetic information, it is an intrinsic part of sign language linguistics in general and of creative signing in particular. We discuss various functions of eye gaze in poetic signing and propose a classification of gaze…

  8. Numeral Incorporation in Japanese Sign Language

    Science.gov (United States)

    Ktejik, Mish

    2013-01-01

    This article explores the morphological process of numeral incorporation in Japanese Sign Language. Numeral incorporation is defined and the available research on numeral incorporation in signed language is discussed. The numeral signs in Japanese Sign Language are then introduced and followed by an explanation of the numeral morphemes which are…

  9. Simulation Analysis on Driving Behavior during Traffic Sign Recognition

    Directory of Open Access Journals (Sweden)

    Lishan Sun

    2011-05-01

    Full Text Available The traffic signs transfer trip information to drivers through vectors like words, graphs and numbers. Traffic sign with excessive information often makes the drivers have no time to read and understand, leading to risky driving. It is still a problem of how to clarify the relationship between traffic sign recognition and risky driving behavior. This paper presents a study that is reflective of such an effort. Twenty volunteers participated in the dynamic visual recognition experiment in driving simulator, and the data of several key indicators are obtained, including visual cognition time, vehicle acceleration and the offset distance from middle lane, etc. Correlations between each indicator above are discussed in terms of risky driving. Research findings directly show that drivers' behavior changes a lot during their traffic sign recognition.

  10. The Impact of Zodiac Signs on Human Nature and Fate

    Science.gov (United States)

    Gasparyan, Naira

    2015-07-01

    Horoscope signs have unavoidable impact on human behaviour and interests, health and even fate. Moreover, intermingled with the impact of planets they become a powerful force able to bring about unbelievable changes. The investigation reveals that horoscopes have existed in the Armenian reality since ancient times. The most striking fact about their eistence is that in order to have and use zodiak signs in one's national culture, the nation should first of all have sufficient knowledge in Astrological Sciences since the system of zodiak signs has a direct reference to the cognitive processes and scientific knowledge of the universe, astrological issues and sometimes even there is a hint on hidden signs and messages. Anania Shirakatsi, one of the learned Armenians, had to display much diplomacy with the Armenian Church and religion when discussing the topic in his manuscripts. His observations are still of much importance and vitality even today.

  11. Pointing and Reference in Sign Language and Spoken Language: Anchoring vs. Identifying

    Science.gov (United States)

    Barberà, Gemma; Zwets, Martine

    2013-01-01

    In both signed and spoken languages, pointing serves to direct an addressee's attention to a particular entity. This entity may be either present or absent in the physical context of the conversation. In this article we focus on pointing directed to nonspeaker/nonaddressee referents in Sign Language of the Netherlands (Nederlandse Gebarentaal,…

  12. Signs of Change: New Directions in Theatre Education

    Science.gov (United States)

    Lazarus, Joan

    2012-01-01

    There is no one-size-fits-all way to keep pace with the changes affecting students and those who educate them. That's why Joan Lazarus has gathered here the insights of hundreds of theater teachers and teaching artists on how they have responded to the shifting demands of theater education in today's schools. She paints a portrait of active,…

  13. 23 CFR 750.154 - Standards for directional signs.

    Science.gov (United States)

    2010-04-01

    ... Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION RIGHT-OF-WAY AND ENVIRONMENT HIGHWAY... are prohibited. (f) Selection method and criteria. (1) Privately owned activities or attractions...; historic, educational, cultural, scientific, and religious sites; and outdoor recreational areas. (2) To be...

  14. Magnetic field control of 90 Degree-Sign , 180 Degree-Sign , and 360 Degree-Sign domain wall resistance

    Energy Technology Data Exchange (ETDEWEB)

    Majidi, Roya, E-mail: royamajidi@gmail.com [Department of Physics, Shahid Rajaee Teacher Training University, Lavizan, 16788-15811 Tehran (Iran, Islamic Republic of)

    2012-10-01

    In the present work, we have compared the resistance of the 90 Degree-Sign , 180 Degree-Sign , and 360 Degree-Sign domain walls in the presence of external magnetic field. The calculations are based on the Boltzmann transport equation within the relaxation time approximation. One-dimensional Neel-type domain walls between two domains whose magnetization differs by angle of 90 Degree-Sign , 180 Degree-Sign , and 360 Degree-Sign are considered. The results indicate that the resistance of the 360 Degree-Sign DW is more considerable than that of the 90 Degree-Sign and 180 Degree-Sign DWs. It is also found that the domain wall resistance can be controlled by applying transverse magnetic field. Increasing the strength of the external magnetic field enhances the domain wall resistance. In providing spintronic devices based on magnetic nanomaterials, considering and controlling the effect of domain wall on resistivity are essential.

  15. Tension pneumocephalus: Mount Fuji sign

    Directory of Open Access Journals (Sweden)

    Pulastya Sanyal

    2015-01-01

    Full Text Available A 13-year-old male was operated for a space occupying lesion in the brain. A noncontrast computed tomography scan done in the late postoperative period showed massive subdural air collection causing compression of bilateral frontal lobes with widening of interhemispheric fissure and the frontal lobes acquiring a peak like configuration - causing tension pneumocephalus-"Mount Fuji sign." Tension pneumocephalus occurs when air enters the extradural or intradural spaces in sufficient volume to exert a mass or pressure effect on the brain, leading to brain herniation. Tension pneumocephalus is a surgical emergency, which needs immediate intervention in the form of decompression of the cranial cavity by a burr hole or needle aspiration. The Mount Fuji sign differentiates tension pneumocephalus from pneumocephalus.

  16. Vision based Traffic Sign Detection and Analysis for Intelligent Driver Assistance Systems

    DEFF Research Database (Denmark)

    Møgelmose, Andreas; Trivedi, Mohan M.; Moeslund, Thomas B.

    2012-01-01

    In this paper, we provide a survey of the traffic sign detection literature, detailing detection systems for Traffic Sign Recognition (TSR) for driver assistance. We separately describe the contributions of recent works to the various stages inherent in traffic sign detection: segmentation, feature...... extraction, and final sign detection. While TSR is a well-established research area, we highlight open research issues in the literature, including a dearth of use of publicly-available image databases, and the over-representation of European traffic signs. Further, we discuss future directions for TSR...

  17. Vital Signs-Secondhand Smoke

    Centers for Disease Control (CDC) Podcasts

    2015-02-03

    This podcast is based on the February 2015 CDC Vital Signs report. Secondhand smoke kills more than 400 infants and 41,000 adult nonsmokers every year. Learn what can be done to prevent secondhand smoke exposure.  Created: 2/3/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 2/3/2015.

  18. Signed Networks in Social Media

    OpenAIRE

    Leskovec, Jure; Huttenlocher, Daniel; Kleinberg, Jon

    2010-01-01

    Relations between users on social media sites often reflect a mixture of positive (friendly) and negative (antagonistic) interactions. In contrast to the bulk of research on social networks that has focused almost exclusively on positive interpretations of links between people, we study how the interplay between positive and negative relationships affects the structure of on-line social networks. We connect our analyses to theories of signed networks from social psychology. We find that the c...

  19. Vital Signs - Child Passenger Safety

    Centers for Disease Control (CDC) Podcasts

    2014-02-04

    This podcast is based on the February 2014 CDC Vital Signs report. Over the past 10 years, more than 9,000 children 12 and under died in motor vehicle crashes, and a third who died in 2011 weren't buckled up. Buckling up is the best way to reduce injuries and save lives.  Created: 2/4/2014 by National Center for Injury Prevention and Control (NCIPC).   Date Released: 2/4/2014.

  20. CERN single sign on solution

    International Nuclear Information System (INIS)

    Ormancey, E

    2008-01-01

    The need for Single Sign On has always been restricted by the absence of cross platform solutions: a single sign on working only on one platform or technology is nearly useless. The recent improvements in Web Services Federation (WS-Federation) standard enabling federation of identity, attribute, authentication and authorization information can now provide real extended Single Sign On solutions. Various solutions have been investigated at CERN and now, a Web SSO solution using some parts of WS-Federation technology is available. Using the Shibboleth Service Provider module for Apache hosted web sites and Microsoft ADFS as the identity provider linked to Active Directory user, users can now authenticate on any web application using a single authentication platform, providing identity, user information (building, phone...) as well as group membership enabling authorization possibilities. A typical scenario: a CERN user can now authenticate on a Linux/Apache website using Windows Integrated credentials, and his Active Directory group membership can be checked before allowing access to a specific web page

  1. Reevaluation of psoas sign analyzed by CT

    International Nuclear Information System (INIS)

    Huh, Jin Do; Park, Yeon Won; Kim, So Seon; Kim, Ho Joon; Joh, Young Duk; Chun, Byung Hee

    1986-01-01

    The lateral margin of the psoas muscle, contrasted by retroperitoneal fat, is usually visualized on plain abdominal radiography. Failure to visualize all or segment of lateral margin of the psoas muscle, so called psoas sign, has been emphasized as reliable finding of retroperitoneal pathology. But the significance of psoas sign has been controversial. The authors reevaluated psoas sign by comparing 160 abdominal radiographs with CT. The results were as follows: 1. In 160 supine radiographs, good visualization was present in 106 cases (63.3%), faint visualization in 24 (15.0%), segmental nonvisualization in 18 (11.3%), and complete nonvisualization in 12 (7.5%). In 113 erect radiographs, good visualization was present in only 36 cases (31.9%). 2. Asymmetric visualization was present in 84 out of 160 cases. In patient with scoliosis, lateral margin of convex side was seen more clearly than concave side, and this finding was statistically significant (p<0.005). 3. Ascites did not directly influence to psoa visualization, contrary to common belief. 4. In 54 cases of faint or nonvisualization, normal was 16 (29.6%), intraperitoneal pathology was 16 (29.6%), and retroperitoneal pathology was 22 (40.7%). 1) In normal patient, psoas contact with kidney or intestine and deformed psoas muscle were responsible for poor visualization. 2) The major cause of poor visualization in intraperitoneal pathology were psoas contact with displaced kidney by hepatomegaly, ascites with scanty retroperitoneal fat and deformed psoas muscle. 3) The major cause of poor visualization in retroperitoneal pathology were psoas invasion by tumor or inflammation, psoas contact with enlarged kidney or perirenal lesion. 5. In summary, the mechanism of faint or nonvisualization of psoas margin were: 1) psoas contact with normal or pathologic organs 2) psoas invasion by tumor or inflammation 3) deformed psoas muscle 4) scanty retroperitoneal fat

  2. FORMS OF HAND IN SIGN LANGUAGE IN BOSNIA AND HERZEGOVINA

    Directory of Open Access Journals (Sweden)

    Husnija Hasanbegović

    2013-05-01

    Full Text Available Sign in sign language, equivalent to the word, phrase or a sentence in the oral-language, can be divided in linguistic units of lower levels: shape of the hand, place of articulation, type of movement and orientation of the palm. The first description of these units, which today is present and applicable in Bosnia and Herzegovina (B&H, was given by Zimmerman in 1986, who found 27 shapes of hand, while other types were not systematically developed or described. The target of this study was to determine the possible existence of other forms of hand movements present in sign language in B&H. By the method of content analysis, the 425 analyzed signs in sign launguage in B&H, confirmed their existence, but we also discovered and presented 14 new shapes of the hand. This way, we confirmed the need of implementing a detailed research, standardization and publishing of sign language in B&H, which would provide adequate conditions for its study and application, as for the deaf, and all the others who come into direct contact with them.

  3. Vital Signs-Trucker Safety

    Centers for Disease Control (CDC) Podcasts

    2015-03-03

    This podcast is based on the March 2015 CDC Vital Signs report. In 2012 in the United States, about 317,000 motor vehicle crashes involved a large truck. Twenty-six thousand truck drivers and their passengers were injured in these crashes, and about 700 died. Learn what can be done to help truck drivers stay safe.  Created: 3/3/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 3/3/2015.

  4. Development of a remote vital signs sensor

    International Nuclear Information System (INIS)

    Ladd, M.D.; Pacheco, M.S.; Rivas, R.R.

    1997-01-01

    This paper describes the work at Sandia National Laboratories to develop sensors that remotely detect unique life-form characteristics, such as breathing patterns or heartbeat patterns. This paper will address the Technical Support Working Group's (TSWG) objective: to develop a remote vital signs detector which can be used to assess someone's malevolent intent. The basic concept of operations for the projects, system development issues, and the preliminary results for a radar device currently in-house and the implications for implementation are described. A survey that identified the in-house technology currently being evaluated is reviewed, as well as ideas for other potential technologies to explore. A radar unit for breathing and heartbeat detection is being tested, and the applicability of infrared technology is being explored. The desire for rapid prototyping is driving the need for off-the-shelf technology. As a conclusion, current status and future directions of the effort are reviewed

  5. Development of a remote vital signs sensor

    Energy Technology Data Exchange (ETDEWEB)

    Ladd, M.D.; Pacheco, M.S.; Rivas, R.R.

    1997-06-01

    This paper describes the work at Sandia National Laboratories to develop sensors that remotely detect unique life-form characteristics, such as breathing patterns or heartbeat patterns. This paper will address the Technical Support Working Group`s (TSWG) objective: to develop a remote vital signs detector which can be used to assess someone`s malevolent intent. The basic concept of operations for the projects, system development issues, and the preliminary results for a radar device currently in-house and the implications for implementation are described. A survey that identified the in-house technology currently being evaluated is reviewed, as well as ideas for other potential technologies to explore. A radar unit for breathing and heartbeat detection is being tested, and the applicability of infrared technology is being explored. The desire for rapid prototyping is driving the need for off-the-shelf technology. As a conclusion, current status and future directions of the effort are reviewed.

  6. knowledge about obstetric danger signs among preg

    African Journals Online (AJOL)

    user

    about knowledge level of pregnant women on obstetric danger signs. The objective of this .... ple size formula for estimating a single population proportion with the ..... subjects mentioned vaginal bleeding as danger sign during pregnancy ...

  7. Sign language in dental education-A new nexus.

    Science.gov (United States)

    Jones, T; Cumberbatch, K

    2017-08-14

    The introduction of the landmark mandatory teaching of sign language to undergraduate dental students at the University of the West Indies (UWI), Mona Campus in Kingston, Jamaica, to bridge the communication gap between dentists and their patients is reviewed. A review of over 90 Doctor of Dental Surgery and Doctor of Dental Medicine curricula in North America, the United Kingdom, parts of Europe and Australia showed no inclusion of sign language in those curricula as a mandatory component. In Jamaica, the government's training school for dental auxiliaries served as the forerunner to the UWI's introduction of formal training of sign language in 2012. Outside of the UWI, a couple of dental schools have sign language courses, but none have a mandatory programme as the one at the UWI. Dentists the world over have had to rely on interpreters to sign with their deaf patients. The deaf in Jamaica have not appreciated the fact that dentists cannot sign and they have felt insulted and only go to the dentist in emergency situations. The mandatory inclusion of sign language in the Undergraduate Dental Programme curriculum at The University of the West Indies, Mona Campus, sought to establish a direct communication channel to formally bridge this gap. The programme of two sign language courses and a direct clinical competency requirement was developed during the second year of the first cohort of the newly introduced undergraduate dental programme through a collaborating partnership between two faculties on the Mona Campus. The programme was introduced in 2012 in the third year of the 5-year undergraduate dental programme. To date, two cohorts have completed the programme, and the preliminary findings from an ongoing clinical study have shown a positive impact on dental care access and dental treatment for deaf patients at the UWI Mona Dental Polyclinic. The development of a direct communication channel between dental students and the deaf that has led to increased dental

  8. Signed Young Modules and Simple Specht Modules

    OpenAIRE

    Danz, Susanne; Lim, Kay Jin

    2015-01-01

    By a result of Hemmer, every simple Specht module of a finite symmetric group over a field of odd characteristic is a signed Young module. While Specht modules are parametrized by partitions, indecomposable signed Young modules are parametrized by certain pairs of partitions. The main result of this article establishes the signed Young module labels of simple Specht modules. Along the way we prove a number of results concerning indecomposable signed Young modules that are of independent inter...

  9. Irreducible Specht modules are signed Young modules

    OpenAIRE

    Hemmer, David J.

    2005-01-01

    Recently Donkin defined signed Young modules as a simultaneous generalization of Young and twisted Young modules for the symmetric group. We show that in odd characteristic, if a Specht module $S^\\lambda$ is irreducible, then $S^\\lambda$ is a signed Young module. Thus the set of irreducible Specht modules coincides with the set of irreducible signed Young modules. This provides evidence for our conjecture that the signed Young modules are precisely the class of indecomposable self-dual module...

  10. Dictionaries of African Sign Languages: An Overview

    Science.gov (United States)

    Schmaling, Constanze H.

    2012-01-01

    This article gives an overview of dictionaries of African sign languages that have been published to date most of which have not been widely distributed. After an introduction into the field of sign language lexicography and a discussion of some of the obstacles that authors of sign language dictionaries face in general, I will show problems…

  11. The Legal Recognition of Sign Languages

    Science.gov (United States)

    De Meulder, Maartje

    2015-01-01

    This article provides an analytical overview of the different types of explicit legal recognition of sign languages. Five categories are distinguished: constitutional recognition, recognition by means of general language legislation, recognition by means of a sign language law or act, recognition by means of a sign language law or act including…

  12. Phonological Similarity in American Sign Language.

    Science.gov (United States)

    Hildebrandt, Ursula; Corina, David

    2002-01-01

    Investigates deaf and hearing subjects' ratings of American Sign Language (ASL) signs to assess whether linguistic experience shapes judgments of sign similarity. Findings are consistent with linguistic theories that posit movement and location as core structural elements of syllable structure in ASL. (Author/VWL)

  13. Generating potentially nilpotent full sign patterns

    NARCIS (Netherlands)

    Kim, I.J.; Olesky, D.D.; Shader, B.L.; Driessche, van den P.; Holst, van der H.; Vander Meulen, K.N.

    2009-01-01

    A sign pattern is a matrix with entries in {+,-, 0}. A full sign pattern has no zero entries. The refined inertia of a matrix pattern is defined and techniques are developed for constructing potentially nilpotent full sign patterns. Such patterns are spectrally arbitrary. These techniques can also

  14. Autoshaping in adolescence enhances sign-tracking behavior in adulthood: Impact on ethanol consumption

    OpenAIRE

    Anderson, Rachel I.; Spear, Linda P.

    2011-01-01

    Autoshaping refers to a procedure during which a cue repeatedly paired with a reward elicits a conditioned response directed at either the reward delivery location (“goal-tracking”) or the cue itself (“sign-tracking”). Individual differences in expression of sign-tracking behavior may be predictive of voluntary ethanol intake. The present study was designed to explore the development of differences in sign-tracking behavior in adolescent and adult male and female rats in an 8-day autoshaping ...

  15. The Way of the Sign

    DEFF Research Database (Denmark)

    Elias, Camelia

    The Way of the Sign is a book about extraction, about reducing methods of inquiry to the bare bones. It guides students through 10 schools of theory and criticism. The focus is on ‘asking’ each theory to give its best in the simplest way, by making us see what is at stake and how we might respond...... to it. In simple Socratic dialogues, Elias invents scenarios: ‘What is happening?’ Deconstruction asks. And we answer with it: ‘We are buying a mythology.’ ‘How does it make us feel?’ ‘Dumb.’ ‘What is happening?’ Marxism asks. And we answer with it: ‘The rich cheat us.’ ‘How does it make us feel...

  16. Images in pediatrics: the thymic sail sign and thymic wave sign.

    Science.gov (United States)

    Alves, Nuno D; Sousa, Marta

    2013-01-01

    The authors present a radiographic image portraying the "thymic sail sign" and the "thymic wave sign," both normal findings in infant radiographs and present a short description of these signs. These are distinguished from pathologic findings such as the "spinnaker-sail sign" in pneumomediastinum.

  17. Using virtual reality to determine how emergency signs facilitate way-finding.

    Science.gov (United States)

    Tang, Chieh-Hsin; Wu, Wu-Tai; Lin, Ching-Yuan

    2009-07-01

    In this study, virtual reality was the tool used to construct an experimental space. Three scenarios - one without emergency signs, another with an old-version emergency sign, and the third with a new-version emergency sign - were created, after which 107 subjects, divided into three groups, engaged in an emergency escape game to determine if and how various emergency signs aid in way-finding in the event of an emergency. Under the presupposition that the minimum time needed for an emergency escape without any mistake occurring was 40s, we found that the average way-finding time in the scenario without any emergency signs was 123.8s, for the scenario with the new-version signs 84.8s, and for the scenario with the old-version signs 75.6s; statistically, this demonstrated that the absence of signs results in slower escape than either old signs (p=0.001) or new signs (p=0.005). These findings indicate that signs do help way-finding greatly. Males were found to exhibit better way-finding skills than females (pConstruction workers and fire safety personnel, as a combined group, did not fare better than others with less presumed prior experience with building plans or emergency exit procedures. In addition, when faced with both an emergency direction sign and an exit door, almost half of the subjects (42% of the participants) were chosen to take the door instead of following the direction posted on the sign. Finally, we found that, at T-intersections, the majority of participants (60%) chose to turn left versus right.

  18. Language and Literacy Acquisition through Parental Mediation in American Sign Language

    Science.gov (United States)

    Bailes, Cynthia Neese; Erting, Lynne C.; Thumann-Prezioso, Carlene; Erting, Carol J.

    2009-01-01

    This longitudinal case study examined the language and literacy acquisition of a Deaf child as mediated by her signing Deaf parents during her first three years of life. Results indicate that the parents' interactions with their child were guided by linguistic and cultural knowledge that produced an intuitive use of child-directed signing (CDSi)…

  19. The Modernization of Signs: A Library Leads the Way to Networked Digital Signage

    Science.gov (United States)

    Larson, Kendall; Quam, Allison

    2010-01-01

    At Winona State University's Krueger Library, where Kendall Larson is an associate professor and Allison Quam is an assistant professor, informational and directional signs are an essential part of the interior space. Yet the ubiquitous sign and media saturation has challenged them to design and maintain effective signage that is conspicuous and…

  20. Comprehending Sentences with the Body: Action Compatibility in British Sign Language?

    Science.gov (United States)

    Vinson, David; Perniss, Pamela; Fox, Neil; Vigliocco, Gabriella

    2017-01-01

    Previous studies show that reading sentences about actions leads to specific motor activity associated with actually performing those actions. We investigate how sign language input may modulate motor activation, using British Sign Language (BSL) sentences, some of which explicitly encode direction of motion, versus written English, where motion…

  1. Recognizing the signs of time in the perspective of Jesus’ call to the evangelization

    Directory of Open Access Journals (Sweden)

    Dariusz Adamczyk

    2008-12-01

    Full Text Available The call of Jesus to recognize the signs of time from Mt 16, 3 has a timeless character. The investigation and explanation of the Gospel light is the duty of the Church. This has a fundamental importance for the effectiveness of evangelization. The signs of time can be correlated directly with God’s initiative to save us. The sign of time can be considered the sign of God in which God’s freedom addresses our freedom, calling us to create history. God, thanks to the signs of time, not so much manifests his definite will, but rather directs us towards freedom. The signs of time show the direction of behaviour for the development of the world which is unanimous with the thought of God. They are God’s calls, which are directed towards men, therefore, recognizing the signs of time has mainly a practical dimen- sion, not a theoretical one. Recognizing signs nowadays allows us to discover new and current elements in the Gospel.

  2. Misleading signs in acute vertigo.

    Science.gov (United States)

    Lance, Sean; Mossman, Stuart Scott

    2018-04-01

    The acute vestibular syndrome is common and usually has a benign cause. Sometimes, however, even experienced neurologists can find it difficult to determine the cause clinically. Furthermore, neuroimaging is known to be insensitive.We describe two cases of acute vestibular syndrome where conflicting clinical findings contributed to a delay in making the correct diagnosis. The first patient with symptomatic vertigo had signs consistent with horizontal benign paroxysmal positional vertigo but also had an abnormal horizontal head impulse test, superficially suggesting acute vestibular neuritis but later accounted for by the finding of a vestibular schwannoma (acoustic neuroma). The second patient also had an abnormal horizontal head impulse test, with skew deviation suggesting stroke as the cause. However, later assessment identified that a long-standing fourth nerve palsy was the true cause for her apparent skew. We discuss potential errors that can arise when assessing such patients and highlight ways to avoid them. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  3. A tour in sign language

    CERN Document Server

    François Briard

    2016-01-01

    In early May, CERN welcomed a group of deaf children for a tour of Microcosm and a Fun with Physics demonstration.   On 4 May, around ten children from the Centre pour enfants sourds de Montbrillant (Montbrillant Centre for Deaf Children), a public school funded by the Office médico-pédagogique du canton de Genève, took a guided tour of the Microcosm exhibition and were treated to a Fun with Physics demonstration. The tour guides’ explanations were interpreted into sign language in real time by a professional interpreter who accompanied the children, and the pace and content were adapted to maximise the interaction with the children. This visit demonstrates CERN’s commitment to remaining as widely accessible as possible. To this end, most of CERN’s visit sites offer reduced-mobility access. In the past few months, CERN has also welcomed children suffering from xeroderma pigmentosum (a genetic disorder causing extreme sensiti...

  4. An electronic dictionary of Danish Sign Language

    DEFF Research Database (Denmark)

    Kristoffersen, Jette Hedegaard; Troelsgård, Thomas

    2008-01-01

    Compiling sign language dictionaries has in the last 15 years changed from most often being simply collecting and presenting signs for a given gloss in the surrounding vocal language to being a complicated lexicographic task including all parts of linguistic analysis, i.e. phonology, phonetics......, morphology, syntax and semantics. In this presentation we will give a short overview of the Danish Sign Language dictionary project. We will further focus on lemma selection and some of the problems connected with lemmatisation....

  5. Significance of satellite sign and spot sign in predicting hematoma expansion in spontaneous intracerebral hemorrhage.

    Science.gov (United States)

    Yu, Zhiyuan; Zheng, Jun; Ali, Hasan; Guo, Rui; Li, Mou; Wang, Xiaoze; Ma, Lu; Li, Hao; You, Chao

    2017-11-01

    Hematoma expansion is related to poor outcome in spontaneous intracerebral hemorrhage (ICH). Recently, a non-enhanced computed tomography (CT) based finding, termed the 'satellite sign', was reported to be a novel predictor for poor outcome in spontaneous ICH. However, it is still unclear whether the presence of the satellite sign is related to hematoma expansion. Initial computed tomography angiography (CTA) was conducted within 6h after ictus. Satellite sign on non-enhanced CT and spot sign on CTA were detected by two independent reviewers. The sensitivity and specificity of both satellite sign and spot sign were calculated. Receiver-operator analysis was conducted to evaluate their predictive accuracy for hematoma expansion. This study included 153 patients. Satellite sign was detected in 58 (37.91%) patients and spot sign was detected in 38 (24.84%) patients. Among 37 patients with hematoma expansion, 22 (59.46%) had satellite sign and 23 (62.16%) had spot sign. The sensitivity and specificity of satellite sign for prediction of hematoma expansion were 59.46% and 68.97%, respectively. The sensitivity and specificity of spot sign were 62.16% and 87.07%, respectively. The area under the curve (AUC) of satellite sign was 0.642 and the AUC of spot sign was 0.746. (P=0.157) CONCLUSION: Our results suggest that the satellite sign is an independent predictor for hematoma expansion in spontaneous ICH. Although spot sign has the higher predictive accuracy, satellite sign is still an acceptable predictor for hematoma expansion when CTA is unavailable. Copyright © 2017 Elsevier B.V. All rights reserved.

  6. Gesture, sign, and language: The coming of age of sign language and gesture studies.

    Science.gov (United States)

    Goldin-Meadow, Susan; Brentari, Diane

    2017-01-01

    How does sign language compare with gesture, on the one hand, and spoken language on the other? Sign was once viewed as nothing more than a system of pictorial gestures without linguistic structure. More recently, researchers have argued that sign is no different from spoken language, with all of the same linguistic structures. The pendulum is currently swinging back toward the view that sign is gestural, or at least has gestural components. The goal of this review is to elucidate the relationships among sign language, gesture, and spoken language. We do so by taking a close look not only at how sign has been studied over the past 50 years, but also at how the spontaneous gestures that accompany speech have been studied. We conclude that signers gesture just as speakers do. Both produce imagistic gestures along with more categorical signs or words. Because at present it is difficult to tell where sign stops and gesture begins, we suggest that sign should not be compared with speech alone but should be compared with speech-plus-gesture. Although it might be easier (and, in some cases, preferable) to blur the distinction between sign and gesture, we argue that distinguishing between sign (or speech) and gesture is essential to predict certain types of learning and allows us to understand the conditions under which gesture takes on properties of sign, and speech takes on properties of gesture. We end by calling for new technology that may help us better calibrate the borders between sign and gesture.

  7. Segmentation of British Sign Language (BSL): Mind the gap!

    OpenAIRE

    Orfanidou, E.; McQueen, J.; Adam, R.; Morgan, G.

    2015-01-01

    This study asks how users of British Sign Language (BSL) recognize individual signs in connected sign sequences. We examined whether this is achieved through modality-specific or modality-general segmentation procedures. A modality-specific feature of signed languages is that, during continuous signing, there are salient transitions between sign locations. We used the sign-spotting task to ask if and how BSL signers use these transitions in segmentation. A total of 96 real BSL signs were prec...

  8. Indoor sign recognition for the blind

    CSIR Research Space (South Africa)

    Kunene, D

    2016-09-01

    Full Text Available that is faster and more reliable. We first segment the signs by colour, and then by shape recognition. The sign-type classification is done using a tree search structure that enables the use of iterative contour descriptors like the speeded-up-robust features...

  9. Historical Development of Hong Kong Sign Language

    Science.gov (United States)

    Sze, Felix; Lo, Connie; Lo, Lisa; Chu, Kenny

    2013-01-01

    This article traces the origins of Hong Kong Sign Language (hereafter HKSL) and its subsequent development in relation to the establishment of Deaf education in Hong Kong after World War II. We begin with a detailed description of the history of Deaf education with a particular focus on the role of sign language in such development. We then…

  10. Research Ethics in Sign Language Communities

    Science.gov (United States)

    Harris, Raychelle; Holmes, Heidi M.; Mertens, Donna M.

    2009-01-01

    Codes of ethics exist for most professional associations whose members do research on, for, or with sign language communities. However, these ethical codes are silent regarding the need to frame research ethics from a cultural standpoint, an issue of particular salience for sign language communities. Scholars who write from the perspective of…

  11. Visual cortex entrains to sign language.

    Science.gov (United States)

    Brookshire, Geoffrey; Lu, Jenny; Nusbaum, Howard C; Goldin-Meadow, Susan; Casasanto, Daniel

    2017-06-13

    Despite immense variability across languages, people can learn to understand any human language, spoken or signed. What neural mechanisms allow people to comprehend language across sensory modalities? When people listen to speech, electrophysiological oscillations in auditory cortex entrain to slow ([Formula: see text]8 Hz) fluctuations in the acoustic envelope. Entrainment to the speech envelope may reflect mechanisms specialized for auditory perception. Alternatively, flexible entrainment may be a general-purpose cortical mechanism that optimizes sensitivity to rhythmic information regardless of modality. Here, we test these proposals by examining cortical coherence to visual information in sign language. First, we develop a metric to quantify visual change over time. We find quasiperiodic fluctuations in sign language, characterized by lower frequencies than fluctuations in speech. Next, we test for entrainment of neural oscillations to visual change in sign language, using electroencephalography (EEG) in fluent speakers of American Sign Language (ASL) as they watch videos in ASL. We find significant cortical entrainment to visual oscillations in sign language sign is strongest over occipital and parietal cortex, in contrast to speech, where coherence is strongest over the auditory cortex. Nonsigners also show coherence to sign language, but entrainment at frontal sites is reduced relative to fluent signers. These results demonstrate that flexible cortical entrainment to language does not depend on neural processes that are specific to auditory speech perception. Low-frequency oscillatory entrainment may reflect a general cortical mechanism that maximizes sensitivity to informational peaks in time-varying signals.

  12. Phonological Awareness for American Sign Language

    Science.gov (United States)

    Corina, David P.; Hafer, Sarah; Welch, Kearnan

    2014-01-01

    This paper examines the concept of phonological awareness (PA) as it relates to the processing of American Sign Language (ASL). We present data from a recently developed test of PA for ASL and examine whether sign language experience impacts the use of metalinguistic routines necessary for completion of our task. Our data show that deaf signers…

  13. Signs of Alcohol Abuse and Addiction

    Science.gov (United States)

    ... Used Drugs in the Past Drug Use Prevention Phone Numbers and Websites Search Share You are here Home » Drugs That People Abuse » Alcohol Facts » Signs of Alcohol Abuse and Addiction Signs of Alcohol Abuse and Addiction Listen ©istock. ...

  14. Signs of Cocaine Abuse and Addiction

    Science.gov (United States)

    ... Used Drugs in the Past Drug Use Prevention Phone Numbers and Websites Search Share You are here Home » Drugs That People Abuse » Cocaine (Coke, Crack) Facts » Signs of Cocaine Use and Addiction Signs of Cocaine Use and Addiction Listen ©istock. ...

  15. Signs of Painkiller Abuse and Addiction

    Science.gov (United States)

    ... Used Drugs in the Past Drug Use Prevention Phone Numbers and Websites Search Share You are here Home » Drugs That People Abuse » Pain Medicine (Oxy, Vike) Facts » Signs of Pain Medicine Abuse and Addiction Signs of Pain Medicine Abuse and Addiction Listen © ...

  16. Signs of Heroin Abuse and Addiction

    Science.gov (United States)

    ... Used Drugs in the Past Drug Use Prevention Phone Numbers and Websites Search Share You are here Home » Drugs That People Abuse » Heroin (Smack, Junk) Facts » Signs of Heroin Use and Addiction Signs of Heroin Use and Addiction Listen Heroin ...

  17. Signs of Marijuana Abuse and Addiction

    Science.gov (United States)

    ... Used Drugs in the Past Drug Use Prevention Phone Numbers and Websites Search Share You are here Home » Drugs That People Abuse » Marijuana (Weed, Pot) Facts » Signs of Marijuana Use and Addiction Signs of Marijuana Use and Addiction Listen ©istock. ...

  18. Sign Detection Theory and Its Applications.

    Science.gov (United States)

    Heine, M. H.

    1984-01-01

    Offers characterization of sign-transmission which is more general than conventional signal-transmission theory. Concepts and terminology, formal description of individual communications process, reconciliation with classical signal-detection theory, applications of sign-detection formalism to information retrieval on MEDLINE database, and a…

  19. Signs: een wetenschappelijk tijdschrift in transatlantisch perspectief

    Directory of Open Access Journals (Sweden)

    Ieme van der Poel

    1997-06-01

    Full Text Available Het Amerikaanse feministische tijdschrift Signs is een belangrijke bron voor de receptie van het Franse feminisme in Amerika. Bovendien geeft het een indruk van het verschil tussen de academische, Amerikaanse vrouwenstudies enerzijds, en de literair en politiek getinte Franse vrouwenbeweging anderzijds. Ieme van der Poel analyseert de jaargangen van Signs tussen 1975 en 1981 vanuit deze gezichtspunten.

  20. Smartphone Based Traffic Sign Inventory and Assessment.

    Science.gov (United States)

    2016-01-01

    Road signs are an important part of the infrastructure and are needed to ensure smooth and : safe traffic flow. Faded, occluded, damaged or vandalized signs can confuse or misinform : drivers and lead to unsafe driving behavior. E.g. if a driver is n...

  1. CDC Vital Signs-Preventing Stroke Deaths

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the September 2017 CDC Vital Signs report. Each year, more than 140,000 people die and many survivors face disability. Eighty percent of strokes are preventable. Learn the signs of stroke and how to prevent them.

  2. 23 CFR 750.707 - Nonconforming signs.

    Science.gov (United States)

    2010-04-01

    ... was lawfully erected but does not comply with the provisions of State law or State regulations passed... affected by the State law or regulations. For example, paper signs nailed to trees, abandoned signs and the... abandonment or discontinuance. Where a State establishes a period of more than one (1) year as a reasonable...

  3. Infant Sign Training and Functional Analysis

    Science.gov (United States)

    Normand, Matthew P.; Machado, Mychal A.; Hustyi, Kristin M.; Morley, Allison J.

    2011-01-01

    We taught manual signs to typically developing infants using a reversal design and caregiver-nominated stimuli. We delivered the stimuli on a time-based schedule during baseline. During the intervention, we used progressive prompting and reinforcement, described by Thompson et al. (2004, 2007), to establish mands. Following sign training, we…

  4. CDC Vital Signs: Progress on Childhood Obesity

    Science.gov (United States)

    ... VitalSigns – Childhood Obesity [PSA – 0:60 seconds] VitalSigns – Obesidad en niños: [PODCAST – 1:15 minutes] Childhood Overweight ... Prevention and Control MedlinePlus – Obesity in Children MedlinePlus – Obesidad en niños Top of Page Get Email Updates ...

  5. Words Recognized as Units: Systematic Signs.

    Science.gov (United States)

    Carlin, John

    1997-01-01

    This historical article proposes that students with deafness in the early grades should be taught easy and familiar words by appropriate sign-language gestures on the fingers and by writing, and that the simple rules of grammar should be explained in the signs in the order of the words. (CR)

  6. Tritium in Exit Signs | RadTown USA | US EPA

    Science.gov (United States)

    2017-08-07

    Many exit signs contain tritium to light the sign without batteries or electricity. Using tritium in exit signs allows the sign to remain lit if the power goes out. Tritium is most dangerous when it is inhaled or swallowed. Never tamper with a tritium exit sign. If a tritium exit sign is broken, leave the area immediately and notify the building maintenance staff.

  7. Sharing Vital Signs between mobile phone applications.

    Science.gov (United States)

    Karlen, Walter; Dumont, Guy A; Scheffer, Cornie

    2014-01-01

    We propose a communication library, ShareVitalSigns, for the standardized exchange of vital sign information between health applications running on mobile platforms. The library allows an application to request one or multiple vital signs from independent measurement applications on the Android OS. Compatible measurement applications are automatically detected and can be launched from within the requesting application, simplifying the work flow for the user and reducing typing errors. Data is shared between applications using intents, a passive data structure available on Android OS. The library is accompanied by a test application which serves as a demonstrator. The secure exchange of vital sign information using a standardized library like ShareVitalSigns will facilitate the integration of measurement applications into diagnostic and other high level health monitoring applications and reduce errors due to manual entry of information.

  8. Road Signs for UV-Completion

    CERN Document Server

    Dvali, Gia; Gomez, Cesar

    2012-01-01

    We confront the concepts of Wilsonian UV-completion versus self-completion by Classicalization in theories with derivatively-coupled scalars. We observe that the information about the UV-completion road is encoded in the sign of the derivative terms. We note that the sign of the derivative couplings for which there is no consistent Wilsonian UV-completion is the one that allows for consistent classicalons. This is an indication that for such a sign the vertex must be treated as fundamental and the theory self-protects against potential inconsistencies, such as superluminality, via self-completion by classicalization. Applying this reasoning to the UV-completion of the Standard Model, we see that the information about the Higgs versus classicalization is encoded in the sign of the scattering amplitude of longitudinal W-bosons. Negative sign excludes Higgs or any other weakly-coupled Wilsonian physics.

  9. Eigen-Gradients for Traffic Sign Recognition

    Directory of Open Access Journals (Sweden)

    Sheila Esmeralda Gonzalez-Reyna

    2013-01-01

    Full Text Available Traffic sign detection and recognition systems include a variety of applications like autonomous driving, road sign inventory, and driver support systems. Machine learning algorithms provide useful tools for traffic sign identification tasks. However, classification algorithms depend on the preprocessing stage to obtain high accuracy rates. This paper proposes a road sign characterization method based on oriented gradient maps and the Karhunen-Loeve transform in order to improve classification performance. Dimensionality reduction may be important for portable applications on resource constrained devices like FPGAs; therefore, our approach focuses on achieving a good classification accuracy by using a reduced amount of attributes compared to some state-of-the-art methods. The proposed method was tested using German Traffic Sign Recognition Benchmark, reaching a dimensionality reduction of 99.3% and a classification accuracy of 95.9% with a Multi-Layer Perceptron.

  10. Drinking and driving behavior at stop signs and red lights.

    Science.gov (United States)

    Wan, Jingyan; Wu, Changxu; Zhang, Yiqi; Houston, Rebecca J; Chen, Chang Wen; Chanawangsa, Panya

    2017-07-01

    Alcohol is one of the principal risk factors for motor vehicle crashes. One factor that contributes to vehicle crashes is noncompliance with stop signs and red lights. The present experiment investigated the effects of alcohol and drinking patterns on driving behavior at stop signs and red lights. 28 participants participated in drinking and simulated driving sessions during which they received a moderate dose of alcohol (0.08% BAC) or a placebo. Simulated driving tasks measured participants' driving performance at stop signs and red lights in response to each dose. Results suggested that alcohol impaired the driver control of speed and direction and prolonged their simple and complex reaction time, which were exhibited by impaired speed and lateral control, longer reaction time when the lights turned yellow, and lower deceleration towards stop signs and red lights. Visual degradation may also occur under alcohol intake. It was also suggested that alcohol impaired non-binge drinkers more severely. To be specific, higher acceleration was observed in impaired non-binge drinkers. Copyright © 2017 Elsevier Ltd. All rights reserved.

  11. Sociolinguistic Variation and Change in British Sign Language Number Signs: Evidence of Leveling?

    Science.gov (United States)

    Stamp, Rose; Schembri, Adam; Fenlon, Jordan; Rentelis, Ramas

    2015-01-01

    This article presents findings from the first major study to investigate lexical variation and change in British Sign Language (BSL) number signs. As part of the BSL Corpus Project, number sign variants were elicited from 249 deaf signers from eight sites throughout the UK. Age, school location, and language background were found to be significant…

  12. Information structure in Russian Sign Language and Sign Language of the Netherlands

    NARCIS (Netherlands)

    Kimmelman, V.

    2014-01-01

    This dissertation explores Information Structure in two sign languages: Sign Language of the Netherlands and Russian Sign Language. Based on corpus data and elicitation tasks we show how topic and focus are expressed in these languages. In particular, we show that topics can be marked syntactically

  13. Signed Language Working Memory Capacity of Signed Language Interpreters and Deaf Signers

    Science.gov (United States)

    Wang, Jihong; Napier, Jemina

    2013-01-01

    This study investigated the effects of hearing status and age of signed language acquisition on signed language working memory capacity. Professional Auslan (Australian sign language)/English interpreters (hearing native signers and hearing nonnative signers) and deaf Auslan signers (deaf native signers and deaf nonnative signers) completed an…

  14. Signs of Life on Venus

    Science.gov (United States)

    Ksanfomality, L.

    2012-04-01

    The search for "habitable zones" in extrasolar planetary systems is based on the premise of "normal" physical conditions in a habitable zone, i.e. pressure, temperature range, and atmospheric composition similar to those on the Earth. However, one should not exclude completely the possibility of the existence of life at relatively high temperatures, despite the fact that at the first glance it seems impossible. The planet Venus with its dense, hot (735 K), oxigenless CO2 - atmosphere and high 92 bar-pressure at the surface could be the natural laboratory for the studies of this type. Amid exoplanets, celestial bodies with the physical conditions similar to the Venusian can be met. The only existing data of actual close-in observations of Venus' surface are the results of a series of missions of the soviet VENERA landers which took place the 1970's and 80's in the atmosphere and on the surface of Venus. For 36 and 29 years since these missions, respectively, I repeatedly returned to the obtained images of the Venus' surface in order to reveal on them any unusual objects observed in the real conditions of Venus. The new analysis of the Venus' panoramas was based on the search of unusual elements in two ways. Since the efficiency of the VENERA landers maintained for a long time they produced a large number of primary television panoramas during the lander's work. Thus, one can try to detect: (a) any differences in successive images (appearance or disappearance of parts of the image or change of their shape), and understand what these changes are related to (e.g., wind), and whether they are related to hypothetical habitability of a planet. Another sign (b) of the wanted object is their morphological peculiarities which distinguishes them from the ordinary surface details. The results of VENERA-9 (1975) and VENERA -13 (1982) are of the main interest. A few relatively large objects ranging from a decimeter to half meter and with unusual morphology were observed in some

  15. ERP correlates of German Sign Language processing in deaf native signers.

    Science.gov (United States)

    Hänel-Faulhaber, Barbara; Skotara, Nils; Kügow, Monique; Salden, Uta; Bottari, Davide; Röder, Brigitte

    2014-05-10

    The present study investigated the neural correlates of sign language processing of Deaf people who had learned German Sign Language (Deutsche Gebärdensprache, DGS) from their Deaf parents as their first language. Correct and incorrect signed sentences were presented sign by sign on a computer screen. At the end of each sentence the participants had to judge whether or not the sentence was an appropriate DGS sentence. Two types of violations were introduced: (1) semantically incorrect sentences containing a selectional restriction violation (implausible object); (2) morphosyntactically incorrect sentences containing a verb that was incorrectly inflected (i.e., incorrect direction of movement). Event-related brain potentials (ERPs) were recorded from 74 scalp electrodes. Semantic violations (implausible signs) elicited an N400 effect followed by a positivity. Sentences with a morphosyntactic violation (verb agreement violation) elicited a negativity followed by a broad centro-parietal positivity. ERP correlates of semantic and morphosyntactic aspects of DGS clearly differed from each other and showed a number of similarities with those observed in other signed and oral languages. These data suggest a similar functional organization of signed and oral languages despite the visual-spacial modality of sign language.

  16. Safety sign designs for children by considering effect of the colors preferences: A case study

    Science.gov (United States)

    Iftadi, Irwan; Nugraha, Dian Cahya; Jauhari, Wakhid Ahmad

    2018-02-01

    Color has become a major consideration in ergonomics. Color conveys a message and it is an important element in safety signs. The importance of colors usage in safety sign designs makes the colors research into one of the things that must be done before designing them. So far, research in the related field only focused on the adult's perspective without involving children's perspective in designing the safety signs. This paper aims to find out how children's perception towards colors affects the safety sign designs. This study consist of eight sections which are literature study, direct observation, determining referents and other parameters, determining research respondents, making the booklet, assessing the colors preferences, determining the design's parameter value and creating the safety sign designs. Limitation of the research are the objects are the students with the age of 10 - 11 years old in Grade IV and then the research is conducted in the school day and hours that apply to the school. Chi square test and odds ratio are employed to assess the colors preferences. Twelve safety sign designs are proposed by considering the children's colors perception. The designs are grouped into three types of sign which are Mandatory Action Sign, Warning Sign and Prohibition Sign. Six colors are used to draw the safety signs i.e. red, orange, yellow, green, blue and black. On the basis of the study, it is concluded that the colors that often appears in safety signs is green with the percentage of 75% and that rarely appears is red with the percentage of 8.33%.

  17. The Phonetics of Head and Body Movement in the Realization of American Sign Language Signs.

    Science.gov (United States)

    Tyrone, Martha E; Mauk, Claude E

    2016-01-01

    Because the primary articulators for sign languages are the hands, sign phonology and phonetics have focused mainly on them and treated other articulators as passive targets. However, there is abundant research on the role of nonmanual articulators in sign language grammar and prosody. The current study examines how hand and head/body movements are coordinated to realize phonetic targets. Kinematic data were collected from 5 deaf American Sign Language (ASL) signers to allow the analysis of movements of the hands, head and body during signing. In particular, we examine how the chin, forehead and torso move during the production of ASL signs at those three phonological locations. Our findings suggest that for signs with a lexical movement toward the head, the forehead and chin move to facilitate convergence with the hand. By comparison, the torso does not move to facilitate convergence with the hand for signs located at the torso. These results imply that the nonmanual articulators serve a phonetic as well as a grammatical or prosodic role in sign languages. Future models of sign phonetics and phonology should take into consideration the movements of the nonmanual articulators in the realization of signs. © 2016 S. Karger AG, Basel.

  18. Sign rules for anisotropic quantum spin systems

    International Nuclear Information System (INIS)

    Bishop, R. F.; Farnell, D. J. J.; Parkinson, J. B.

    2000-01-01

    We present exact ''sign rules'' for various spin-s anisotropic spin-lattice models. It is shown that, after a simple transformation which utilizes these sign rules, the ground-state wave function of the transformed Hamiltonian is positive definite. Using these results exact statements for various expectation values of off-diagonal operators are presented, and transitions in the behavior of these expectation values are observed at particular values of the anisotropy. Furthermore, the importance of such sign rules in variational calculations and quantum Monte Carlo calculations is emphasized. This is illustrated by a simple variational treatment of a one-dimensional anisotropic spin model

  19. The main signs of ageing in people with intellectual disability.

    Science.gov (United States)

    Wark, Stuart; Hussain, Rafat; Edwards, Helen

    2016-12-01

    Investigations around ageing with an intellectual disability have increased substantially in the past three decades. A research gap continued to exist regarding the detection of ageing issues in this cohort of people, particularly in rural areas where access to specialist support continued to be limited. The purpose of this study was to identify the main signs of ageing in rural people with intellectual disabilities. A multi-round Delphi design was used to examine what signs of ageing were observed by disability support staff, who assisted people with intellectual disability. The project was conducted across nine of the ten rural regions (as defined by the government funding body) in New South Wales (NSW). There were 31 participants representing 14 non-government organisations. The group was composed of 26 women and 5 men, with a mean age of 47 years, who averaged 10-year experience with people with intellectual disabilities. The objective was to gain the direct input of rurally based disability workers to identify the main signs of ageing in people with intellectual disabilities. Thirty-two specific signs of ageing, including emerging mental health issues, grief, loss of identity and aggression, were identified. A thematic analysis indicated two main categories: mental/emotional functioning and physical functioning. When carers have the information and skills needed to identify the main signs of ageing, they can more accurately recognise and address potential problems in a timely manner. Such understandings have the potential to reduce premature admissions to residential aged-care. © 2016 National Rural Health Alliance Inc.

  20. Relevant signs of stable and unstable thoracolumbar vertebral column trauma

    International Nuclear Information System (INIS)

    Gehweiler, J.A.; Daffner, R.H.; Osborne, R.L.

    1981-01-01

    One-hundred and seventeen patients with acute thoracolumbar vertebral column fracture or fracture-dislocations were analyzed and classified into stable (36%) and unstable (64%). Eight helpful roentgen signs were observed that may serve to direct attention to serious underlying, often occult, fractures and dislocations. The changes fall into four principal groups: abnormal soft tissues, abnormal vertebral alignment, abnormal joints, and widened vertebral canal. All stable and unstable lesions showed abnormal soft tissues, while 70% demonstrated kyphosis and/or scoliosis, and an abnormal adjacent intervertebral disk space. All unstable lesions showed one or more of the following signs: displaced vertebra, widened interspinous space, abnormal apophyseal joint(s), and widened vertebral canal. (orig.)

  1. Georges Charpak street sign unveiled

    CERN Multimedia

    Paola Catapano

    2011-01-01

    While it might not be the only French street named in honour of the late Georges Charpak, who passed away in September 2010 at the age of 87, the street chosen by the mayor of Saint-Genis-Pouilly is certainly the only one located directly opposite the CERN "campus". The road overlooks buildings on the CERN Meyrin site, where Georges Charpak spent most of his career as a physicist, conducting the research that won him the Nobel Prize in Physics in 1992.   From left to right: Sigurd Lettow, Dominique Charpak and the mayor of Saint-Genis-Pouilly. The unveiling took place on 17 October and was organised by the mayor of Saint-Genis-Pouilly. George Charpak’s wife, Dominique, and Sigurd Lettow, CERN Director of Administration and General Infrastructure, attended what was an intimate and touching ceremony. The mayor’s speech at the event praised Georges’ commitment to scientific education. The highlight of the event, however, was a witty and humorous ...

  2. Performance of pile supported sign structures : [brief].

    Science.gov (United States)

    2015-05-01

    Sign structures in Wisconsin are typically supported by drilled shaft foundations or spread : footing foundations. However, when the soil conditions are not suitable to be supported on : drilled shafts or spread footings, a group of piles could suppo...

  3. Ebola (Ebola Virus Disease): Signs and Symptoms

    Science.gov (United States)

    ... Exposure Communication Resources Videos Audio Infographics & Illustrations Factsheets Posters Virus Ecology Graphic Signs and Symptoms Recommend on ... site? Adobe PDF file Microsoft PowerPoint file Microsoft Word file Microsoft Excel file Audio/Video file Apple ...

  4. CDC Vital Signs: Asthma in the US

    Science.gov (United States)

    ... gov . Vital Signs Topics Covered Alcohol Antibiotic Resistance Cancer Cardiovascular Diseases Diseases & Conditions Food Safety Healthcare-associated Infections Healthy Living HIV / AIDS Injury, Violence & Safety Motor Vehicle Safety Obesity ...

  5. CDC Vital Signs: HIV Care Saves Lives

    Science.gov (United States)

    ... gov . Vital Signs Topics Covered Alcohol Antibiotic Resistance Cancer Cardiovascular Diseases Diseases & Conditions Food Safety Healthcare-associated Infections Healthy Living HIV / AIDS Injury, Violence & Safety Motor Vehicle Safety Obesity ...

  6. Vital Signs-Preventing Norovirus Outbreaks

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the June 2014 CDC Vital Signs report. Norovirus infects about 20 million Americans each year. Learn how to protect yourself and your family from this very contagious, potentially serious illness.

  7. Symbol signing design for older drivers

    Science.gov (United States)

    1997-07-01

    This project evaluated the effectiveness of symbol traffic signs for young, middle-aged and elderly drivers. Daytime legibility distance and comprehension of 85 symbols in the Manual on Uniform Traffic Control Devices (MUTCD) were measured. Legibilit...

  8. Photometric requirements for portable changeable message signs.

    Science.gov (United States)

    2001-09-01

    This project reviewed the performance of pchangeable message signs (PCMSs) and developed photometric standards to establish performance requirements. In addition, researchers developed photometric test methods and recommended them for use in evaluati...

  9. Vital Signs-Alcohol Poisoning Deaths

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the January 2015 CDC Vital Signs report. In the United States, an average of six people die every day from alcohol poisoning. Learn what you can do to prevent binge drinking and alcohol poisoning.

  10. 27 CFR 6.102 - Outside signs.

    Science.gov (United States)

    2010-04-01

    ... OF THE TREASURY LIQUORS âTIED-HOUSEâ Exceptions § 6.102 Outside signs. The act by an industry member... advertising matter about the product or the industry member which is permanently inscribed or securely affixed...

  11. Hazard sign comprehension among illiterate adults

    African Journals Online (AJOL)

    KATEVG

    Hazard signs have been considered an effective mode of transferring safety .... United Kingdom and the United States of America, indicating that hazard ..... primary providers of these programmes (Occupational Health and Safety Act 1993).

  12. Mental Illness in Children: Know the Signs

    Science.gov (United States)

    ... how you can help. By Mayo Clinic Staff Mental illness in children can be hard for parents to ... help they need. Understand the warning signs of mental illness in children and how you can help your ...

  13. Water Breaking: Understand This Sign of Labor

    Science.gov (United States)

    Healthy Lifestyle Labor and delivery, postpartum care Water breaking worries? Prepare yourself for childbirth by getting the facts about this important sign of labor. By Mayo Clinic Staff If you're ...

  14. Sign patterns of J-orthogonal matrices

    Czech Academy of Sciences Publication Activity Database

    Hall, F.J.; Li, Z.; Parnass, C.; Rozložník, Miroslav

    2017-01-01

    Roč. 5, č. 1 (2017), s. 225-241 ISSN 2300-7451 Institutional support: RVO:67985840 Keywords : G-matrix * J-orthogonal matrix * sign pattern matrix * sign patterns that allow J-orthogonality Subject RIV: BA - General Mathematics OBOR OECD: Applied mathematics https://www.degruyter.com/view/j/spma.2017.5.issue-1/spma-2017-0016/spma-2017-0016.xml?format=INT

  15. Sign patterns of J-orthogonal matrices

    Czech Academy of Sciences Publication Activity Database

    Hall, F.J.; Li, Z.; Parnass, C.; Rozložník, Miroslav

    2017-01-01

    Roč. 5, č. 1 (2017), s. 225-241 ISSN 2300-7451 Institutional support: RVO:67985840 Keywords : G-matrix * J-orthogonal matrix * sign pattern matrix * sign patterns that allow J-orthogonality Subject RIV: BA - General Mathematics OBOR OECD: Applied mathematics https://www.degruyter.com/view/j/spma.2017.5.issue-1/spma-2017-0016/spma-2017-0016. xml ?format=INT

  16. Spontaneous neonatal pneumomediastinum: the "spinnaker sail" sign.

    Science.gov (United States)

    Lawal, T A; Glüer, S; Reismann, M; Dördelmann, M; Schirg, E; Ure, B

    2009-02-01

    Spontaneous pneumomediastinum is a rare condition in the newborn, not associated with identifiable trauma or mechanical ventilation. It is diagnosed by a combination of physical examination and confirmatory chest radiograph, with various recognized signs identifiable in this condition. We report the case of a male neonate, who had pneumomediastinum confirmed by the presence of a wind blown spinnaker sail sign and was managed conservatively. We also reviewed the literature.

  17. Being and Sign in the "Enneads"

    Science.gov (United States)

    Tomulet, Daniel

    2010-01-01

    The intention of this work is to show that Plotinus' metaphysics, his theory of Intellect, can be interpreted as a philosophy of the sign. The fact that Plotinus describes Intellect, the world of real beings, as a sign or a trace of the One is well-known, and we use this aspect in our work. However, what is even more important from our perspective…

  18. Central structure preservation of the reversal sign

    International Nuclear Information System (INIS)

    Chen, C.J.

    1999-01-01

    We report serial changes of central structure preservation of the reversal sign in a case of child abuse. The serial CT images show that the relatively spared attenuation at the basal ganglia, thalami, and posterior fossa develops before the occurrence of transtentorial herniation. This finding makes the theory that central preservation of the reversal sign is due to pressure relief after transtentorial herniation less convincible. (orig.)

  19. Sign rank versus Vapnik-Chervonenkis dimension

    Science.gov (United States)

    Alon, N.; Moran, Sh; Yehudayoff, A.

    2017-12-01

    This work studies the maximum possible sign rank of sign (N × N)-matrices with a given Vapnik-Chervonenkis dimension d. For d=1, this maximum is three. For d=2, this maximum is \\widetilde{\\Theta}(N1/2). For d >2, similar but slightly less accurate statements hold. The lower bounds improve on previous ones by Ben-David et al., and the upper bounds are novel. The lower bounds are obtained by probabilistic constructions, using a theorem of Warren in real algebraic topology. The upper bounds are obtained using a result of Welzl about spanning trees with low stabbing number, and using the moment curve. The upper bound technique is also used to: (i) provide estimates on the number of classes of a given Vapnik-Chervonenkis dimension, and the number of maximum classes of a given Vapnik-Chervonenkis dimension--answering a question of Frankl from 1989, and (ii) design an efficient algorithm that provides an O(N/log(N)) multiplicative approximation for the sign rank. We also observe a general connection between sign rank and spectral gaps which is based on Forster's argument. Consider the adjacency (N × N)-matrix of a Δ-regular graph with a second eigenvalue of absolute value λ and Δ ≤ N/2. We show that the sign rank of the signed version of this matrix is at least Δ/λ. We use this connection to prove the existence of a maximum class C\\subseteq\\{+/- 1\\}^N with Vapnik-Chervonenkis dimension 2 and sign rank \\widetilde{\\Theta}(N1/2). This answers a question of Ben-David et al. regarding the sign rank of large Vapnik-Chervonenkis classes. We also describe limitations of this approach, in the spirit of the Alon-Boppana theorem. We further describe connections to communication complexity, geometry, learning theory, and combinatorics. Bibliography: 69 titles.

  20. Central structure preservation of the reversal sign

    Energy Technology Data Exchange (ETDEWEB)

    Chen, C.J. [Dept. of Diagnostic Radiology, Chang Gung Memorial Hospital, Taipei (Taiwan)

    1999-12-01

    We report serial changes of central structure preservation of the reversal sign in a case of child abuse. The serial CT images show that the relatively spared attenuation at the basal ganglia, thalami, and posterior fossa develops before the occurrence of transtentorial herniation. This finding makes the theory that central preservation of the reversal sign is due to pressure relief after transtentorial herniation less convincible. (orig.)

  1. History of metaphoric signs in radiology

    Energy Technology Data Exchange (ETDEWEB)

    Baker, Stephen R., E-mail: bakersr@umdnj.edu; Noorelahi, Yasser M., E-mail: dr.ynoorelahi@gmail.com; Ghosh, Shanchita, E-mail: Ghoshs1@umdnj.edu; Yang, Lily C., E-mail: yangclily@gmail.com; Kasper, David J., E-mail: dkasp86@gmail.com

    2013-09-15

    Purpose: To survey the nearly 100 year history of metaphoric sign naming in radiology describing the pace of their overall accumulation in the radiology canon, their specific rates of growth by modality and subspecialty and the characteristics of the referents to which the signs are attached. Materials and methods: A comprehensive list of metaphoric signs was compiled from a search of articles in several major English language radiology journals, from a roster compiled in a monograph on the subject published in 1984 and from a search of several databases to find signs published in the first half of the 20th century. Results: The growth of radiological metaphorical signs naming was slow for several decades after the first one was published in 1918. It then increased rapidly until the 1980s encompassing all modalities and subspecialties. Recently the practice has shown a marked and steady decline. Conclusion: Metaphoric sign naming was a frequently reported contribution to the radiological literature in the second half of the 20th century corresponding with Radiology's growth as a descriptive discipline. Its decline since then may be a consequence of Radiology's evolution into a more analytic, data-driven field of inquiry.

  2. History of metaphoric signs in radiology

    International Nuclear Information System (INIS)

    Baker, Stephen R.; Noorelahi, Yasser M.; Ghosh, Shanchita; Yang, Lily C.; Kasper, David J.

    2013-01-01

    Purpose: To survey the nearly 100 year history of metaphoric sign naming in radiology describing the pace of their overall accumulation in the radiology canon, their specific rates of growth by modality and subspecialty and the characteristics of the referents to which the signs are attached. Materials and methods: A comprehensive list of metaphoric signs was compiled from a search of articles in several major English language radiology journals, from a roster compiled in a monograph on the subject published in 1984 and from a search of several databases to find signs published in the first half of the 20th century. Results: The growth of radiological metaphorical signs naming was slow for several decades after the first one was published in 1918. It then increased rapidly until the 1980s encompassing all modalities and subspecialties. Recently the practice has shown a marked and steady decline. Conclusion: Metaphoric sign naming was a frequently reported contribution to the radiological literature in the second half of the 20th century corresponding with Radiology's growth as a descriptive discipline. Its decline since then may be a consequence of Radiology's evolution into a more analytic, data-driven field of inquiry

  3. On the temporal dynamics of sign production: An ERP study in Catalan Sign Language (LSC).

    Science.gov (United States)

    Baus, Cristina; Costa, Albert

    2015-06-03

    This study investigates the temporal dynamics of sign production and how particular aspects of the signed modality influence the early stages of lexical access. To that end, we explored the electrophysiological correlates associated to sign frequency and iconicity in a picture signing task in a group of bimodal bilinguals. Moreover, a subset of the same participants was tested in the same task but naming the pictures instead. Our results revealed that both frequency and iconicity influenced lexical access in sign production. At the ERP level, iconicity effects originated very early in the course of signing (while absent in the spoken modality), suggesting a stronger activation of the semantic properties for iconic signs. Moreover, frequency effects were modulated by iconicity, suggesting that lexical access in signed language is determined by the iconic properties of the signs. These results support the idea that lexical access is sensitive to the same phenomena in word and sign production, but its time-course is modulated by particular aspects of the modality in which a lexical item will be finally articulated. Copyright © 2015 Elsevier B.V. All rights reserved.

  4. Sign Language Echolalia in Deaf Children with Autism Spectrum Disorder

    Science.gov (United States)

    Shield, Aaron; Cooley, Frances; Meier, Richard P.

    2017-01-01

    Purpose: We present the first study of echolalia in deaf, signing children with autism spectrum disorder (ASD). We investigate the nature and prevalence of sign echolalia in native-signing children with ASD, the relationship between sign echolalia and receptive language, and potential modality differences between sign and speech. Method: Seventeen…

  5. The Principle of Transparency of the Sign and the Problem of Cognitive Mediation and Epistemological Immediatism

    Directory of Open Access Journals (Sweden)

    Józef Dębowski

    2011-12-01

    Full Text Available The article consists of two parts. In the first part (I three different formulations of the principle of the transparency of the sign are described. In the first description (E. Husserl it is said that the sign in a proper sense (both an iconic and conventional one is transparent for its denotations. In the second description (A. Schaff only the transparence of its meaning is admitted. As far as the third description is concerned (L. Koj conviction, that every sign is transparent both for a signed object and its meaning, is typical. In the second part of the article (II we consider relationship between the principle of the transparency of the sign and traditional distinction between “transparent” and “opaque” cognitive mediator – distinction between medium quo and medium quod . The main conclusion of this article is included in a thesis that linguistic cognition and significative cognition – because it isn’t a direct cognition in the sense of primary directness (perceptive – isn’t able to guarantee a source of access to a cognized object, so it is not a direct cognition in a proper sense. It means that the transparency of the sign, when it appears in the face of its denotations (E. Husserl’s interpretations a sign or a system of signs are not able to function as a transparent mediator, i e medium quo . It is like that because – as E. Husserl noticed – the sign (due to its transparency indeed shows us its denotations, but always through the mediation of its meaning and some significative intention. 

  6. Mutation detection for inventories of traffic signs from street-level panoramic images

    Science.gov (United States)

    Hazelhoff, Lykele; Creusen, Ivo; De With, Peter H. N.

    2014-03-01

    Road safety is positively influenced by both adequate placement and optimal visibility of traffic signs. As their visibility degrades over time due to e.g. aging, vandalism, accidents and vegetation coverage, up-to-date inven­tories of traffic signs are highly attractive for preserving a high road safety. These inventories are performed in a semi-automatic fashion from street-level panoramic images, exploiting object detection and classification tech­niques. Next to performing inventories from scratch, these systems are also exploited for the efficient retrieval of situation changes by comparing the outcome of the automated system to a baseline inventory (e.g. performed in a previous year). This allows for specific manual interactions to the found changes, while skipping all unchanged situations, thereby resulting in a large efficiency gain. This work describes such a mutation detection approach, with special attention to re-identifying previously found signs. Preliminary results on a geographical area con­taining about 425 km of road show that 91.3% of the unchanged signs are re-identified, while the amount of found differences equals about 35% of the number of baseline signs. From these differences, about 50% correspond to physically changed traffic signs, next to false detections, misclassifications and missed signs. As a bonus, our approach directly results in the changed situations, which is beneficial for road sign maintenance.

  7. Language policies and sign language translation and interpreting: connections between Brazil and Mozambique

    Directory of Open Access Journals (Sweden)

    Silvana Aguiar dos Santos

    2015-12-01

    Full Text Available http://dx.doi.org/10.5007/1984-8420.2015v16n2p101 This paper is the result of an initial attempt to establish a connection between Brazil and Mozambique regarding sign language translation and interpreting. It reviews some important landmarks in language policies aimed at sign languages in these countries and discusses how certain actions directly impact political decisions related to sign lan­guage translation and interpreting. In this context, two lines of argument are developed. The first one addresses the role of sign language translation and interpreting in the Por­tuguese-speaking context, since Portuguese is the official language in both countries; the other offers some reflections about the Deaf movements and the movements of sign lan­guage translators and interpreters, the legal recognition of sign languages, the develop­ment of undergraduate courses and the contemporary challenges in the work of transla­tion professionals. Finally, it is suggested that sign language translators and interpreters in both Brazil and Mozambique undertake efforts to press government bodies to invest in: (i area-specific training for translators and interpreters, (ii qualification of the ser­vices provided by such professionals, and (iii development of human resources at mas­ter’s and doctoral levels in order to strengthen research on sign language translation and interpreting in the Community of Portuguese-Speaking Countries.

  8. Neural correlates of British sign language comprehension: spatial processing demands of topographic language.

    Science.gov (United States)

    MacSweeney, Mairéad; Woll, Bencie; Campbell, Ruth; Calvert, Gemma A; McGuire, Philip K; David, Anthony S; Simmons, Andrew; Brammer, Michael J

    2002-10-01

    In all signed languages used by deaf people, signs are executed in "sign space" in front of the body. Some signed sentences use this space to map detailed "real-world" spatial relationships directly. Such sentences can be considered to exploit sign space "topographically." Using functional magnetic resonance imaging, we explored the extent to which increasing the topographic processing demands of signed sentences was reflected in the differential recruitment of brain regions in deaf and hearing native signers of the British Sign Language. When BSL signers performed a sentence anomaly judgement task, the occipito-temporal junction was activated bilaterally to a greater extent for topographic than nontopographic processing. The differential role of movement in the processing of the two sentence types may account for this finding. In addition, enhanced activation was observed in the left inferior and superior parietal lobules during processing of topographic BSL sentences. We argue that the left parietal lobe is specifically involved in processing the precise configuration and location of hands in space to represent objects, agents, and actions. Importantly, no differences in these regions were observed when hearing people heard and saw English translations of these sentences. Despite the high degree of similarity in the neural systems underlying signed and spoken languages, exploring the linguistic features which are unique to each of these broadens our understanding of the systems involved in language comprehension.

  9. Repetitions in French Belgian Sign Language (LSFB) and Flemish Sign Language (VGT) narratives and conversations

    OpenAIRE

    Notarrigo, Ingrid; Meurant, Laurence; Van Herreweghe, Mieke; Vermeerbergen, Myriam

    2016-01-01

    Repetition was described in the nineties by a limited number of sign linguists: Vermeerbergen & De Vriendt (1994) looked at a small corpus of VGT data, Fisher & Janis (1990) analysed “verb sandwiches” in ASL and Pinsonneault (1994) “verb echos” in Quebec Sign Language. More recently the same phenomenon has been the focus of research in a growing number of signed languages, including American (Nunes and de Quadros 2008), Hong Kong (Sze 2008), Russian (Shamaro 2008), Polish (Flilipczak and Most...

  10. Integration and embedding of vital signs sensors and other devices into textiles

    OpenAIRE

    Abreu, Maria José Araújo Marques; Carvalho, Helder; Catarino, André P.; Rocha, A. M.

    2010-01-01

    The development of ubiquitous vital sign monitoring has become a very up-to-date research theme for many academics and industrial companies in the last years. With new materials and integration techniques, it is possible to implement vital sign monitoring in an economic manner, directly into textile products. This unobtrusive presence of sensors is especially important for the monitoring of children or elderly people. This paper focuses on two aspects of sensor integration: Integration of off...

  11. Ureterolithiasis signs on unenhanced helical computed tomography: iconographic essay and literature review

    International Nuclear Information System (INIS)

    Vieira, Renata La Rocca; Faintuch, Salomao; Goldman, Suzan Menasce; Ajzen, Sergio Aron; Szejnfeld, Jacob

    2004-01-01

    The most important diagnostic sign of ureterolithiasis is the direct visualization of the stone within the ureter. However, in some patients with ureterolithiasis stone visualization may be impaired due to stone small size or low attenuation, respiratory artifacts between data acquisitions, low amount of retroperitoneal fat or recent elimination of the stone. In this context, we describe many secondary computed tomography signs of ureteral obstruction that may useful in the diagnosis of inconclusive cases, and also quantify the degree of urinary obstruction. (author)

  12. On the System of Place Name Signs in Estonian Sign Language

    Directory of Open Access Journals (Sweden)

    Liina Paales

    2011-05-01

    Full Text Available A place name sign is a linguistic-cultural marker that includes both memory and landscape. The author regards toponymic signs in Estonian Sign Language as representations of images held by the Estonian Deaf community: they reflect the geographical place, the period, the relationships of the Deaf community with hearing community, and the common and distinguishing features of the two cultures perceived by community's members. Name signs represent an element of signlore, which includes various types of creative linguistic play. There are stories hidden behind the place name signs that reveal the etymological origin of place name signs and reflect the community's memory. The purpose of this article is twofold. Firstly, it aims to introduce Estonian place name signs as Deaf signlore forms, analyse their structure and specify the main formation methods. Secondly, it interprets place-denoting signs in the light of understanding the foundations of Estonian Sign Language, Estonian Deaf education and education history, the traditions of local Deaf communities, and also of the cultural and local traditions of the dominant hearing communities. Both perspectives - linguistic and folkloristic - are represented in the current article.

  13. Know Stroke: Know the Signs, Act in Time Video

    Medline Plus

    Full Text Available ... Seeing. Trouble Walking. Know Stroke, Know the Signs, Act in Time. Announcer: Most people know what to ... but you need to know the signs and act in time. Here are the signs to look ...

  14. Path optimization method for the sign problem

    Directory of Open Access Journals (Sweden)

    Ohnishi Akira

    2018-01-01

    Full Text Available We propose a path optimization method (POM to evade the sign problem in the Monte-Carlo calculations for complex actions. Among many approaches to the sign problem, the Lefschetz-thimble path-integral method and the complex Langevin method are promising and extensively discussed. In these methods, real field variables are complexified and the integration manifold is determined by the flow equations or stochastically sampled. When we have singular points of the action or multiple critical points near the original integral surface, however, we have a risk to encounter the residual and global sign problems or the singular drift term problem. One of the ways to avoid the singular points is to optimize the integration path which is designed not to hit the singular points of the Boltzmann weight. By specifying the one-dimensional integration-path as z = t +if(t(f ϵ R and by optimizing f(t to enhance the average phase factor, we demonstrate that we can avoid the sign problem in a one-variable toy model for which the complex Langevin method is found to fail. In this proceedings, we propose POM and discuss how we can avoid the sign problem in a toy model. We also discuss the possibility to utilize the neural network to optimize the path.

  15. Trinary signed-digit arithmetic using an efficient encoding scheme

    Science.gov (United States)

    Salim, W. Y.; Alam, M. S.; Fyath, R. S.; Ali, S. A.

    2000-09-01

    The trinary signed-digit (TSD) number system is of interest for ultrafast optoelectronic computing systems since it permits parallel carry-free addition and borrow-free subtraction of two arbitrary length numbers in constant time. In this paper, a simple coding scheme is proposed to encode the decimal number directly into the TSD form. The coding scheme enables one to perform parallel one-step TSD arithmetic operation. The proposed coding scheme uses only a 5-combination coding table instead of the 625-combination table reported recently for recoded TSD arithmetic technique.

  16. Nanoscale organization of the pathogen receptor DC-SIGN mapped by single-molecule high-resolution fluorescence microscopy.

    NARCIS (Netherlands)

    Bakker, B.I. de; Lange, F. de; Cambi, A.; Korterik, J.P.; Dijk, E.M. van; Hulst, N.F. van; Figdor, C.G.; Garcia-Parajo, M.F.

    2007-01-01

    DC-SIGN, a C-type lectin exclusively expressed on dendritic cells (DCs), plays an important role in pathogen recognition by binding with high affinity to a large variety of microorganisms. Recent experimental evidence points to a direct relation between the function of DC-SIGN as a viral receptor

  17. Nanoscale organization of the pathogen receptor DC-SIGN mapped by single-molecule high-resolution flourescence microscopy

    NARCIS (Netherlands)

    de Bakker, B.I.; de Lange, Frank; Cambi, Alessandra; Cambi, A.; Korterik, Jeroen P.; van Dijk, E.M.H.P.; van Hulst, N.F.; Figdor, Carl; Garcia Parajo, M.F.

    2007-01-01

    DC-SIGN, a C-type lectin exclusively expressed on dendritic cells (DCs), plays an important role in pathogen recognition by binding with high affinity to a large variety of microorganisms. Recent experimental evidence points to a direct relation between the function of DC-SIGN as a viral receptor

  18. [Information technology in learning sign language].

    Science.gov (United States)

    Hernández, Cesar; Pulido, Jose L; Arias, Jorge E

    2015-01-01

    To develop a technological tool that improves the initial learning of sign language in hearing impaired children. The development of this research was conducted in three phases: the lifting of requirements, design and development of the proposed device, and validation and evaluation device. Through the use of information technology and with the advice of special education professionals, we were able to develop an electronic device that facilitates the learning of sign language in deaf children. This is formed mainly by a graphic touch screen, a voice synthesizer, and a voice recognition system. Validation was performed with the deaf children in the Filadelfia School of the city of Bogotá. A learning methodology was established that improves learning times through a small, portable, lightweight, and educational technological prototype. Tests showed the effectiveness of this prototype, achieving a 32 % reduction in the initial learning time for sign language in deaf children.

  19. A Sign Language Screen Reader for Deaf

    Science.gov (United States)

    El Ghoul, Oussama; Jemni, Mohamed

    Screen reader technology has appeared first to allow blind and people with reading difficulties to use computer and to access to the digital information. Until now, this technology is exploited mainly to help blind community. During our work with deaf people, we noticed that a screen reader can facilitate the manipulation of computers and the reading of textual information. In this paper, we propose a novel screen reader dedicated to deaf. The output of the reader is a visual translation of the text to sign language. The screen reader is composed by two essential modules: the first one is designed to capture the activities of users (mouse and keyboard events). For this purpose, we adopted Microsoft MSAA application programming interfaces. The second module, which is in classical screen readers a text to speech engine (TTS), is replaced by a novel text to sign (TTSign) engine. This module converts text into sign language animation based on avatar technology.

  20. Signs in neuroradiology: A pictorial review

    Energy Technology Data Exchange (ETDEWEB)

    Kizilca, Ozgur; Oztek, Alp; Kesimal, Ugur; Senol, Utku [Dept. of Radiology, Akdeniz University Faculty of Medicine, Antalya (Turkmenistan)

    2017-11-15

    One of the major problems radiologists face in everyday practice is to decide the correct diagnosis, or at least narrow down the list of possibilities. In this context, indicative evidences (signs) are useful to recognize pathologies, and also to narrow the list of differential diagnoses. Despite classically being described for a single disease, or a closely related family of disorders, most indications are not restricted exclusively to their traditional definition. Therefore, using signs for prognosis requires knowledge of the mechanism of their appearance, and which pathologies they are observed in. In this study, we demonstrate some of the more common and useful neuroradiologic signs with relevant images, and discuss their use in differential diagnosis.

  1. The "double panda" sign in Leigh disease.

    Science.gov (United States)

    Sonam, Kothari; Bindu, P S; Gayathri, Narayanappa; Khan, Nahid Akhtar; Govindaraju, C; Arvinda, Hanumanthapura R; Nagappa, Madhu; Sinha, Sanjib; Thangaraj, K; Taly, Arun B

    2014-07-01

    Although the "face of the giant panda" sign on magnetic resonance imaging (MRI) is traditionally considered to be characteristic of Wilson disease, it has also been reported in other metabolic disorders. This study describes the characteristic "giant panda" sign on MRI in a child with Leigh disease. The diagnosis was based on the history of neurological regression; examination findings of oculomotor abnormalities, hypotonia, and dystonia; raised serum lactate levels; and characteristic brain stem and basal ganglia signal changes on MRI. The midbrain and pontine tegmental signal changes were consistent with the "face of the giant panda and her cub" sign. In addition to Wilson disease, metabolic disorders such as Leigh disease should also be considered in the differential diagnosis of this rare imaging finding. © The Author(s) 2013.

  2. English Shop Signs and Brand Names

    Directory of Open Access Journals (Sweden)

    Parvaneh Khosravizadeh

    2016-07-01

    Full Text Available The present study tries to investigate the people’s attitude to the use of English words in TV commercials, brand-naming and shop signs in Iran and specifically in Tehran where due to the fact that it is the capital, more English might be used for the sake of foreigners. The widespread use of English shop signs and English brand names for recently produced goodsdrove the researchers to investigate peoples’ attitude as consumers from two aspects of age and education. To reach the research goal, a questionnaire was devised and distributed to 100 people at random selection probing their attitudes while considering two factors of age and education. The result of the research will mostly benefit sociolinguists and business marketers.Keywords: age, education, advertising, brand-naming, shop signs, globalization

  3. The CT signs of intestinal volvulus

    International Nuclear Information System (INIS)

    Ji Jiansong; Wang Zufei; Xu Zhaolong; Lv Guijian; Xu Min; Zhao Zhongwei; Su Jinliang; Zhou Limin

    2005-01-01

    Objective: To improve the accuracy rate of spiral CT diagnosing intestinal volvulus. Methods: To analysis the CT findings of 9 cases of intestinal volvulus proved by operation, the main reconstruction techniques were multiplanar reformation (MPR) and sliding thin-slab maximum intensity projection (STS-MIP). Results: All the 9 cases were diagnosed accurately, the main signs were 'whirlpool' of intestine (6 cases) and vessels (9 cases),'target loop' (2 cases),'beak'(6 cases). Conclusion: 'Whirlpool' of vessels is a specific sign to diagnose intestinal volvulus, 'target loop', reduced enhancement of intestinal wall and ascites are the reliable signs to strangulated intestinal obstruction. Spiral CT and reconstructions have important value to diagnose the intestinal volvulus. (authors)

  4. Autoshaping in adolescence enhances sign-tracking behavior in adulthood: impact on ethanol consumption.

    Science.gov (United States)

    Anderson, Rachel I; Spear, Linda P

    2011-04-01

    Autoshaping refers to a procedure during which a cue repeatedly paired with a reward elicits a conditioned response directed at either the reward delivery location ("goal-tracking") or the cue itself ("sign- tracking"). Individual differences in expression of sign-tracking behavior may be predictive of voluntary ethanol intake. The present study was designed to explore the development of differences in sign-tracking behavior in adolescent and adult male and female rats in an 8-day autoshaping procedure. Consistency of sign-tracking and goal-tracking across age was examined by retesting adolescents again in adulthood and comparing their adult data with animals tested only as adults to explore pre-exposure effects on adult responding. In order to assess the relationship between sign-tracking and ethanol intake, voluntary ethanol consumption was measured in an 8-day, 2-hr limited access drinking paradigm following the 8-day autoshaping procedure in adulthood. Animals tested as adolescents showed notably less sign-tracking behavior than animals tested as adults, and sign-tracking behavior was not correlated across age. Animals exposed to the autoshaping procedure as adolescents demonstrated greater sign-tracking behavior as adults when compared to control animals tested only in adulthood. When examining the relationship in adulthood between sign-tracking and ethanol intake, an increase in ethanol intake among sign-trackers was found only in animals pre-exposed to autoshaping as adolescents. Whether or not these results reflect an adolescent-specific experience effect is unclear without further work to determine whether comparable pre-exposure effects are seen if the initial autoshaping sessions are delayed into adulthood. Copyright © 2011 Elsevier Inc. All rights reserved.

  5. Classic Peripheral Signs of Subacute Bacterial Endocarditis

    Directory of Open Access Journals (Sweden)

    Yooyoung Chong

    2016-10-01

    Full Text Available A 50-year-old female patient with visual disturbances was referred for further evaluation of a heart murmur. Fundoscopy revealed a Roth spot in both eyes. A physical examination showed peripheral signs of infective endocarditis, including Osler nodes, Janeway lesions, and splinter hemorrhages. Our preoperative diagnosis was subacute bacterial endocarditis with severe aortic regurgitation. The patient underwent aortic valve replacement and was treated with intravenous antibiotics for 6 weeks postoperatively. The patient made a remarkable recovery and was discharged without complications. We report this case of subacute endocarditis with all 4 classic peripheral signs in a patient who presented with visual disturbance.

  6. Classic Peripheral Signs of Subacute Bacterial Endocarditis

    Science.gov (United States)

    Chong, Yooyoung; Han, Sung Joon; Rhee, Youn Ju; Kang, Shin Kwang; Yu, Jae Hyeon; Na, Myung Hoon

    2016-01-01

    A 50-year-old female patient with visual disturbances was referred for further evaluation of a heart murmur. Fundoscopy revealed a Roth spot in both eyes. A physical examination showed peripheral signs of infective endocarditis, including Osler nodes, Janeway lesions, and splinter hemorrhages. Our preoperative diagnosis was subacute bacterial endocarditis with severe aortic regurgitation. The patient underwent aortic valve replacement and was treated with intravenous antibiotics for 6 weeks postoperatively. The patient made a remarkable recovery and was discharged without complications. We report this case of subacute endocarditis with all 4 classic peripheral signs in a patient who presented with visual disturbance. PMID:27734006

  7. A sequent calculus for signed interval logic

    DEFF Research Database (Denmark)

    Rasmussen, Thomas Marthedal

    2001-01-01

    We propose and discuss a complete sequent calculus formulation for Signed Interval Logic (SIL) with the chief purpose of improving proof support for SIL in practice. The main theoretical result is a simple characterization of the limit between decidability and undecidability of quantifier-free SIL....... We present a mechanization of SIL in the generic proof assistant Isabelle and consider techniques for automated reasoning. Many of the results and ideas of this report are also applicable to traditional (non-signed) interval logic and, hence, to Duration Calculus....

  8. The Use of Sign Language Pronouns by Native-Signing Children with Autism

    Science.gov (United States)

    Shield, Aaron; Meier, Richard P.; Tager-Flusberg, Helen

    2015-01-01

    We report the first study on pronoun use by an under-studied research population, children with autism spectrum disorder (ASD) exposed to American Sign Language from birth by their deaf parents. Personal pronouns cause difficulties for hearing children with ASD, who sometimes reverse or avoid them. Unlike speech pronouns, sign pronouns are…

  9. Adaptation of a Vocabulary Test from British Sign Language to American Sign Language

    Science.gov (United States)

    Mann, Wolfgang; Roy, Penny; Morgan, Gary

    2016-01-01

    This study describes the adaptation process of a vocabulary knowledge test for British Sign Language (BSL) into American Sign Language (ASL) and presents results from the first round of pilot testing with 20 deaf native ASL signers. The web-based test assesses the strength of deaf children's vocabulary knowledge by means of different mappings of…

  10. Approaching Sign Language Test Construction: Adaptation of the German Sign Language Receptive Skills Test

    Science.gov (United States)

    Haug, Tobias

    2011-01-01

    There is a current need for reliable and valid test instruments in different countries in order to monitor deaf children's sign language acquisition. However, very few tests are commercially available that offer strong evidence for their psychometric properties. A German Sign Language (DGS) test focusing on linguistic structures that are acquired…

  11. Signs of Resistance: Peer Learning of Sign Languages within "Oral" Schools for the Deaf

    Science.gov (United States)

    Anglin-Jaffe, Hannah

    2013-01-01

    This article explores the role of the Deaf child as peer educator. In schools where sign languages were banned, Deaf children became the educators of their Deaf peers in a number of contexts worldwide. This paper analyses how this peer education of sign language worked in context by drawing on two examples from boarding schools for the deaf in…

  12. The sign language skills classroom observation: a process for describing sign language proficiency in classroom settings.

    Science.gov (United States)

    Reeves, J B; Newell, W; Holcomb, B R; Stinson, M

    2000-10-01

    In collaboration with teachers and students at the National Technical Institute for the Deaf (NTID), the Sign Language Skills Classroom Observation (SLSCO) was designed to provide feedback to teachers on their sign language communication skills in the classroom. In the present article, the impetus and rationale for development of the SLSCO is discussed. Previous studies related to classroom signing and observation methodology are reviewed. The procedure for developing the SLSCO is then described. This procedure included (a) interviews with faculty and students at NTID, (b) identification of linguistic features of sign language important for conveying content to deaf students, (c) development of forms for recording observations of classroom signing, (d) analysis of use of the forms, (e) development of a protocol for conducting the SLSCO, and (f) piloting of the SLSCO in classrooms. The results of use of the SLSCO with NTID faculty during a trial year are summarized.

  13. Wayfinding Sign pada Ruang Pameran Tetap di Museum Nasional Indonesia – Jakarta

    Directory of Open Access Journals (Sweden)

    Heru Budi Kusuma

    2018-05-01

    Full Text Available Wayfinding atau orientasi topografi, merupakan kemampuan menentukan lokasi, menemukan tempat dalam fasilitas gedung. Sebagai media penunjuk arah, Wayfinding Sign yang diterapkan pada ruang pameran tetap belum memenuhi kebutuhan yang dapat memberikan informasi yang cukup, mengenai arah mana yang harus dituju untuk mencapai area tertentu, warna-warna yang tercantum dalam panel informasi pun tidak memberikan arti tertentu. Permasalahan pada Wayfinding Sign pada ruang pameran tetap yang dianalisis meliputi: Ukuran; dimensi tanda yang proporsional terhadap luas area dimana tanda tersebut berada,sehingga memungkinkan tanda tersebut dapat mudah terlihat. Warna; berkaitan dengan warna pada tanda telah sesuai peruntukannya dan memperhatikan warna disekitar tanda berada. Kontras; berkaitan dengan estetika tanda yang dominan terhadap kondisi disekitar tanda sehingga tanda tampak eksistensinya. Intensitas; berkaitan terhadap sesuatu yang dapat memberikan stimulus sehingga menarik perhatian terhadap tanda. Posisi ; berkaitan dengan perletakan tanda yang memperhatikan jangkauan penglihatan pengunjung yang mengarah ketempat tanda tersebut berada. Untuk memfokuskan penelitian dan menemukan hubungan antara satu data dengan data yang lain, maka penelitian ini menggunakan metode penelitian kualitatif. Data hasil observasi, pengukuran, deskripsi, dan analisis data dengan teknik Triangulasi Data diperoleh kesimpulan sebagai berikut: Directional Sign; menggunakan tanda ‘warna’ yang tidak ada hubungannya dengan lokasi lantai ruang pameran dan nuansa warna ruangan yang ditunjukan, dan terdapat sign yang menginformasikan arah yang tidak tepat. Informational Sign; tanda yang memberikan informasi tentang materi koleksi yang didisplay dalam ruang pameran tetap, sudah sesuai dan efektif. Identificational Sign; perletakannya yang tidak tepat sehingga menggangu kenyamanan pengunjung dalam membaca informasinya dan membuat posisi membaca yang tidak sehat dan aman

  14. The meningeal sign: a new appraisal

    International Nuclear Information System (INIS)

    Hutzelmann, A.; Palmie, S.; Zimmer, C.; Benz, T.; Leweke, F.; Freund, M.

    1996-01-01

    To evaluate the occurrence of the meningeal sign in meningiomas and metastases. We studied 20 patients with meningiomas and 17 patients with cerebral metastases adjacent to the dura. MRI studies (Siemens, Magnetom 1,5) included axial T 1 -weighted and T 2 -weighted unenhanced as well as gadolinium-DTPA enhanced T 1 -weighted (axial, coronal, sagittal) SE imaging. In all patients the tumours were resected with the attached dura mater. Histopathological examinations were done, which corresponded to the area of marked enhancement by gadolinium-DTPA. There was no correlation between the occurrence of the meningeal sign and the histopathological examinations. In 20 patients with meningiomas adjacent to the dura we found the meningeal sign in 11 cases. Histologically we observed an increase of collagen fibres and fibrocytes. In 5 to 17 cases with superficial cerebral as dura infiltrations and microbleedings. The meningeal sign is not specific for meningiomas and can be observed in a wide variety of pathological entities. (orig.) [de

  15. Base connections for signal/sign structures.

    Science.gov (United States)

    2012-02-01

    The Atlantic hurricane season of 2004 brought with it a series of four major hurricanes that made landfall across : Florida within a six-week period. During this time, a number of cantilever sign structures along the state interstate system : failed....

  16. ASL or Contact Signing: Issues of Judgment.

    Science.gov (United States)

    Lucas, Ceil; Valli, Clayton

    1991-01-01

    Reports on one aspect of an ongoing study of language contact in the American deaf community. The ultimate goal of the study is a linguistic description of contact signing and a reexamination of claims that it is a pidgin. Patterns of language use are reviewed and the role of demographic information in judgments is examined. (29 references) (GLR)

  17. The Sign Language Situation in Mali

    Science.gov (United States)

    Nyst, Victoria

    2015-01-01

    This article gives a first overview of the sign language situation in Mali and its capital, Bamako, located in the West African Sahel. Mali is a highly multilingual country with a significant incidence of deafness, for which meningitis appears to be the main cause, coupled with limited access to adequate health care. In comparison to neighboring…

  18. Syntactic priming in American Sign Language.

    Science.gov (United States)

    Hall, Matthew L; Ferreira, Victor S; Mayberry, Rachel I

    2015-01-01

    Psycholinguistic studies of sign language processing provide valuable opportunities to assess whether language phenomena, which are primarily studied in spoken language, are fundamentally shaped by peripheral biology. For example, we know that when given a choice between two syntactically permissible ways to express the same proposition, speakers tend to choose structures that were recently used, a phenomenon known as syntactic priming. Here, we report two experiments testing syntactic priming of a noun phrase construction in American Sign Language (ASL). Experiment 1 shows that second language (L2) signers with normal hearing exhibit syntactic priming in ASL and that priming is stronger when the head noun is repeated between prime and target (the lexical boost effect). Experiment 2 shows that syntactic priming is equally strong among deaf native L1 signers, deaf late L1 learners, and hearing L2 signers. Experiment 2 also tested for, but did not find evidence of, phonological or semantic boosts to syntactic priming in ASL. These results show that despite the profound differences between spoken and signed languages in terms of how they are produced and perceived, the psychological representation of sentence structure (as assessed by syntactic priming) operates similarly in sign and speech.

  19. CDC Vital Signs-Heroin Epidemic

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the July 2015 CDC Vital Signs report. Heroin use and heroin-related overdose deaths are increasing. Most people are using it with other drugs, especially prescription opioid painkillers. Learn what can be done to prevent and treat the problem.

  20. Vital Signs-Preventing Prescription Drug Overdose

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the July 2014 CDC Vital Signs report. Every day, 46 people in the U.S. die from an overdose of prescription opioid painkillers. Learn what can be done to make painkiller prescribing safer and help prevent overdoses.

  1. Vital Signs-Preventing Norovirus Outbreaks

    Centers for Disease Control (CDC) Podcasts

    2014-06-03

    This podcast is based on the June 2014 CDC Vital Signs report. Norovirus infects about 20 million Americans each year. Learn how to protect yourself and your family from this very contagious, potentially serious illness.  Created: 6/3/2014 by National Center for Immunization and Respiratory Diseases (NCIRD).   Date Released: 6/3/2014.

  2. Vital Signs-Motor Vehicle Crash Injuries

    Centers for Disease Control (CDC) Podcasts

    2014-10-07

    This podcast is based on the October 2014 CDC Vital Signs report. Motor vehicle crashes are costly and preventable. Learn what can be done to help prevent motor vehicle injuries.  Created: 10/7/2014 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 10/7/2014.

  3. A Discrete Dynamical Model of Signed Partitions

    Directory of Open Access Journals (Sweden)

    G. Chiaselotti

    2013-01-01

    Full Text Available We use a discrete dynamical model with three evolution rules in order to analyze the structure of a partially ordered set of signed integer partitions whose main properties are actually not known. This model is related to the study of some extremal combinatorial sum problems.

  4. Malta to sign MOU with CERN

    CERN Multimedia

    2008-01-01

    In what can be described as a historic moment for Malta's scientific sector, Prime Minister Lawrence Gonzi will today sign a memorandum of understanding with CERN that will start off a long-term participation project for Maltese engineers and scientists in research and innovation projects.

  5. CDC Vital Signs-HIV Testing

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the December 2017 CDC Vital Signs report. In the U.S., about 15 percent of people who have HIV don't know they have it. Learn about the importance of testing, early diagnosis, and treatment.

  6. Word Order in Russian Sign Language

    Science.gov (United States)

    Kimmelman, Vadim

    2012-01-01

    In this paper the results of an investigation of word order in Russian Sign Language (RSL) are presented. A small corpus of narratives based on comic strips by nine native signers was analyzed and a picture-description experiment (based on Volterra et al. 1984) was conducted with six native signers. The results are the following: the most frequent…

  7. CDC Vital Signs-Cancer and Obesity

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the October 2017 CDC Vital Signs report. Obesity is a leading cancer risk factor. Unfortunately, two out of three U.S. adults weigh more than recommended. Find out what can be done to help people get to and keep a healthy weight.

  8. Vital Signs-Preventing Teen Pregnancy

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the April 2015 CDC Vital Signs report. Teen births in the U.S. have declined, but still, more than 273,000 infants were born to teens ages 15 to 19 in 2013. Learn about the most effective types of birth control.

  9. CDC Vital Signs-African American Health

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the May 2017 CDC Vital Signs report. The life expectancy of African Americans has improved, but it's still an average of four years less than whites. Learn what can be done so all Americans can have the opportunity to pursue a healthy lifestyle.

  10. CDC Vital Signs: Preventing Teen Pregnancy

    Science.gov (United States)

    ... Press Kit Read the MMWR Science Clips Preventing Teen Pregnancy A Key Role for Health Care Providers Language: ... Battles: Teen Pregnancy Prevention Status Reports (PSRs): Teen Pregnancy FastStats: Teen Births Vital Signs – Preventing Teen Pregnancy [PODCAST – 1: ...

  11. A quantum architecture for multiplying signed integers

    International Nuclear Information System (INIS)

    Alvarez-Sanchez, J J; Alvarez-Bravo, J V; Nieto, L M

    2008-01-01

    A new quantum architecture for multiplying signed integers is presented based on Booth's algorithm, which is well known in classical computation. It is shown how a quantum binary chain might be encoded by its flank changes, giving the final product in 2's-complement representation.

  12. Domestic Violence against Men: Know the Signs

    Science.gov (United States)

    Healthy Lifestyle Adult health Domestic violence against men isn't always easy to identify, but it can be a serious threat. Know how to recognize if ... Staff Women aren't the only victims of domestic violence. Understand the signs of domestic violence against men, ...

  13. CDC Vital Signs-Preventing Melanoma

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the June 2015 CDC Vital Signs report. Skin cancer is the most common form of cancer in the U.S. In 2011, there were more than 65,000 cases of melanoma, the most deadly form of skin cancer. Learn how everyone can help prevent skin cancer.

  14. Vital Signs-Cervical Cancer is Preventable!

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the November 2014 CDC Vital Signs report. Every visit to a doctor or nurse is an opportunity to prevent cervical cancer. Women can get a Pap test and HPV test to help prevent cervical cancer and adolescent boys and girls can get the HPV vaccination series to help prevent cervical and other cancers.

  15. ACHP | News | St. Elizabeths Programmatic Agreement Signed

    Science.gov (United States)

    Search skip specific nav links Home arrow News arrow St. Elizabeths Programmatic Agreement Signed St redevelopment of the St. Elizabeths West Campus, which is part of the St. Elizabeths National Historic Landmark this project, due to the historic significance of the NHL. GSA's client for the St. Elizabeths

  16. Grey-Turner's sign in sclerosing peritonitis

    NARCIS (Netherlands)

    Stouthard, J. M.; Krediet, R. T.; Arisz, L.

    1989-01-01

    A 41-year-old CAPD patient developed Grey-Turner's sign during the course of bacterial peritonitis due to Pseudomonas aeruginosa. At the same time a diagnosis of sclerosing peritonitis was made by CT-scanning of the abdomen. We think that Grey-Turner's flank staining could either have been caused by

  17. It’s all about safety signs!

    CERN Multimedia

    2013-01-01

    Their first occurrence may date back to the Egyptian hieroglyphs, but today they can be found everywhere: on our clothes labels as care labels, in train stations and airports to guide us, during the Olympics to identify various sports, on our dashboards, etc.   Safety wise, they are used to indicate a danger, a prohibition, an obligation, a safety exit, firefighting equipment, etc. The HSE Unit has decided to update the 150 safety signs used on the CERN site and, to correspond with this, recently published a Safety Guideline GS-1-0-1, available on the Safety Unit website. The Guideline contains more than 150 safety signs as well as diverse information regarding the meaning of the signs, their location and how to use them. The Guideline will shortly be completed with a new Safety Rule that will replace the former Security Code A3, “Safety colours and safety signs”. Please be informed that you also have the option to create new safety signs, provided that you first g...

  18. President Signs STAR Act for Kids' Cancers.

    Science.gov (United States)

    2018-06-07

    On June 5, President Donald Trump signed the Childhood Cancer Survivorship, Treatment, Access and Research Act, which aims to support pediatric cancer research by expanding the collection of patient biospecimens and records, improving surveillance, and investigating pediatric survivorship. ©2018 American Association for Cancer Research.

  19. Dense Alternating Sign Matrices and Extensions

    Czech Academy of Sciences Publication Activity Database

    Fiedler, Miroslav; Hall, F.J.; Stroev, M.

    2014-01-01

    Roč. 444, 1 March (2014), s. 219-226 ISSN 0024-3795 Institutional support: RVO:67985807 Keywords : alternating sign matrix * dense matrix * totally unimodular matrix * combined matrix * generalized complementary basic matrix Subject RIV: BA - General Mathematics Impact factor: 0.939, year: 2014

  20. The Sign System in Chinese Landscape Paintings

    Science.gov (United States)

    McMahon, Cliff G.

    2003-01-01

    Paintings emerge from a culture field and must be interpreted in relation to the net of culture. A given culture will be implicated by the sign system used by the painter. Everyone agrees that in Chinese landscape paintings, the most important cultural bond is to ancient Chinese Taoism, and to a lesser degree, to Confucianism. Obviously, then, the…

  1. [About the signs of malignant pheochromocytoma].

    Science.gov (United States)

    Simonenko, V B; Makanin, M A; Dulin, P A; Vasilchenko, M I; Lesovik, V S

    2012-01-01

    Morphological criteria for malignant pheochromocytoma remain to be developed According to the WHO recommendations, the sole absolute criteria is the presence of metastases in the organs normally containing no chromaffin tissue. Such signs as cellular and nuclear polymorphism, mytotic activity, vascular invasion, capsular ingrowth are not sufficient to describe a pheochromocytoma as malignant. It is equally dfficult to differentiate between malignant and benign tumours based on histological data since histologically mature neoplasms can produce metastases. Based on the results of original studies, the authors believe that such histological features as vascular and capsular invasion do not necessarily suggest unfavourable prognosis. Therefore, the conclusion of malignancy based on such features can not be regarded as absolute. Probably such neoplasms should be called "pheochromocytomas with morphological signs of malignant growths". They should be referred to the tumours with uncertain malignancy potential based on the known discrepancy between morphological structure and biological activity of neoplasms. Comparative studies of clinical and morphological features of pheochromocytomas showed that their histological type (alveolar; solid, dyscomplexed, trabecular) and morphological signs of malignant growth influence both the clinical picture and arterial hypertension. There are no significant relationship between the above morphological signs, timour mass and clinical manifestations of pheochromocytomas.

  2. CDC Vital Signs-Legionnaires' Disease

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the June 2017 CDC Vital Signs report. Legionnaires' disease is a serious, often deadly lung infection. People most commonly get it by breathing in water droplets containing Legionella germs. Learn how to prevent infections from Legionella.

  3. The Minus Sign in Faraday's Law Revisited

    Science.gov (United States)

    O'Sullivan, Colm; Hurley, Donal

    2013-01-01

    By introducing the mathematical concept of orientation, the significance of the minus sign in Faraday's law may be made clear to students with some knowledge of vector calculus. For many students, however, the traditional approach of treating the law as a relationship between positive scalars and of relying on Lenz's law to provide the information…

  4. Syntactic priming in American Sign Language.

    Directory of Open Access Journals (Sweden)

    Matthew L Hall

    Full Text Available Psycholinguistic studies of sign language processing provide valuable opportunities to assess whether language phenomena, which are primarily studied in spoken language, are fundamentally shaped by peripheral biology. For example, we know that when given a choice between two syntactically permissible ways to express the same proposition, speakers tend to choose structures that were recently used, a phenomenon known as syntactic priming. Here, we report two experiments testing syntactic priming of a noun phrase construction in American Sign Language (ASL. Experiment 1 shows that second language (L2 signers with normal hearing exhibit syntactic priming in ASL and that priming is stronger when the head noun is repeated between prime and target (the lexical boost effect. Experiment 2 shows that syntactic priming is equally strong among deaf native L1 signers, deaf late L1 learners, and hearing L2 signers. Experiment 2 also tested for, but did not find evidence of, phonological or semantic boosts to syntactic priming in ASL. These results show that despite the profound differences between spoken and signed languages in terms of how they are produced and perceived, the psychological representation of sentence structure (as assessed by syntactic priming operates similarly in sign and speech.

  5. A statistical analysis of the impact of advertising signs on road safety.

    Science.gov (United States)

    Yannis, George; Papadimitriou, Eleonora; Papantoniou, Panagiotis; Voulgari, Chrisoula

    2013-01-01

    This research aims to investigate the impact of advertising signs on road safety. An exhaustive review of international literature was carried out on the effect of advertising signs on driver behaviour and safety. Moreover, a before-and-after statistical analysis with control groups was applied on several road sites with different characteristics in the Athens metropolitan area, in Greece, in order to investigate the correlation between the placement or removal of advertising signs and the related occurrence of road accidents. Road accident data for the 'before' and 'after' periods on the test sites and the control sites were extracted from the database of the Hellenic Statistical Authority, and the selected 'before' and 'after' periods vary from 2.5 to 6 years. The statistical analysis shows no statistical correlation between road accidents and advertising signs in none of the nine sites examined, as the confidence intervals of the estimated safety effects are non-significant at 95% confidence level. This can be explained by the fact that, in the examined road sites, drivers are overloaded with information (traffic signs, directions signs, labels of shops, pedestrians and other vehicles, etc.) so that the additional information load from advertising signs may not further distract them.

  6. Signing for the "No Smoking' ordinance in Southern California

    Science.gov (United States)

    William S. Folkman

    1966-01-01

    Symbolic signs, especially designed to aid enforcement of "no smoking" ordinances, had high visibility and were correctly interpreted by most travelers. Signs with words "NO" and "OK"' were superior to signs without these words. Observation and interpretation of the signs were greater among the younger persons and among those who...

  7. Linearization of weak hand holds in Russian Sign Language

    NARCIS (Netherlands)

    Kimmelman, V.

    2017-01-01

    Russian Sign Language (RSL) makes use of constructions involving manual simultaneity, in particular, weak hand holds, where one hand is being held in the location and configuration of a sign, while the other simultaneously produces one sign or a sequence of several signs. In this paper, I argue that

  8. 29 CFR 1926.200 - Accident prevention signs and tags.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 8 2010-07-01 2010-07-01 false Accident prevention signs and tags. 1926.200 Section 1926..., DEPARTMENT OF LABOR (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION Signs, Signals, and Barricades § 1926.200 Accident prevention signs and tags. (a) General. Signs and symbols required by this subpart...

  9. Sign Language with Babies: What Difference Does It Make?

    Science.gov (United States)

    Barnes, Susan Kubic

    2010-01-01

    Teaching sign language--to deaf or other children with special needs or to hearing children with hard-of-hearing family members--is not new. Teaching sign language to typically developing children has become increasingly popular since the publication of "Baby Signs"[R] (Goodwyn & Acredolo, 1996), now in its third edition. Attention to signing with…

  10. Segmentation of British Sign Language (BSL): Mind the gap!

    NARCIS (Netherlands)

    Orfanidou, E.; McQueen, J.M.; Adam, R.; Morgan, G.

    2015-01-01

    This study asks how users of British Sign Language (BSL) recognize individual signs in connected sign sequences. We examined whether this is achieved through modality-specific or modality-general segmentation procedures. A modality-specific feature of signed languages is that, during continuous

  11. Evaluation of the effectiveness of lamination for preventing discoloration and fading of radiation warning signs posted on the exterior of radiation facilities

    International Nuclear Information System (INIS)

    Hiroi, Tomoko; Ootaki, Masanori; Nawa, Yukino; Kuwabara, Rie; Tatsunami, Shinobu; Matsui, Hiroaki; Kumazawa, Yutaka; Yamamoto, Takio

    2014-01-01

    Radiation warning signs posted on the exterior of radiation facilities become faded and discolored with time. There are various types of commercially available laminating films for protecting signs from ultraviolet light. We examined the protection effect of polyvinyl chloride (PVC), acrylic resin and fluororesin films applied to the surface of radiation warning signs. The laminated signs were exposed to direct sunlight on the wall of an air filter chamber of a radiation facility for 1200 days. Simultaneously, another set of laminated signs was exposed to light from a xenon-arc weatherometer for 1200 hours. After exposure, the colors on the surface of each sign were evaluated digitally by using a spectrum colorimeter. The results indicated that lamination with a film that blocks ultraviolet light is effective for protecting the signs from fading and discoloration. For long-term protection under direct sunlight, PVC was the most effective among the three materials tested. (author)

  12. Sorting signed permutations by short operations.

    Science.gov (United States)

    Galvão, Gustavo Rodrigues; Lee, Orlando; Dias, Zanoni

    2015-01-01

    During evolution, global mutations may alter the order and the orientation of the genes in a genome. Such mutations are referred to as rearrangement events, or simply operations. In unichromosomal genomes, the most common operations are reversals, which are responsible for reversing the order and orientation of a sequence of genes, and transpositions, which are responsible for switching the location of two contiguous portions of a genome. The problem of computing the minimum sequence of operations that transforms one genome into another - which is equivalent to the problem of sorting a permutation into the identity permutation - is a well-studied problem that finds application in comparative genomics. There are a number of works concerning this problem in the literature, but they generally do not take into account the length of the operations (i.e. the number of genes affected by the operations). Since it has been observed that short operations are prevalent in the evolution of some species, algorithms that efficiently solve this problem in the special case of short operations are of interest. In this paper, we investigate the problem of sorting a signed permutation by short operations. More precisely, we study four flavors of this problem: (i) the problem of sorting a signed permutation by reversals of length at most 2; (ii) the problem of sorting a signed permutation by reversals of length at most 3; (iii) the problem of sorting a signed permutation by reversals and transpositions of length at most 2; and (iv) the problem of sorting a signed permutation by reversals and transpositions of length at most 3. We present polynomial-time solutions for problems (i) and (iii), a 5-approximation for problem (ii), and a 3-approximation for problem (iv). Moreover, we show that the expected approximation ratio of the 5-approximation algorithm is not greater than 3 for random signed permutations with more than 12 elements. Finally, we present experimental results that show

  13. Traffic sign detection and classification using colour and shape cues

    CSIR Research Space (South Africa)

    Senekal, FP

    2008-11-01

    Full Text Available . In highway maintenance and sign inventory applications, the ability to recognise and possibly to evaluate the condition of the signs, can greatly reduce the effort in maintaining current road infrastructure. Traffic signs are designed to have specific... that traffic signs have unique colours and shapes are often exploited in algorithms designed to recognise them. These algorithms typically follow a two step process. In the detection phase, the position and shape of the signs (if any) in the image...

  14. Phonological Development in Hearing Learners of a Sign Language: The Influence of Phonological Parameters, Sign Complexity, and Iconicity

    Science.gov (United States)

    Ortega, Gerardo; Morgan, Gary

    2015-01-01

    The present study implemented a sign-repetition task at two points in time to hearing adult learners of British Sign Language and explored how each phonological parameter, sign complexity, and iconicity affected sign production over an 11-week (22-hour) instructional period. The results show that training improves articulation accuracy and that…

  15. Restoration of motion-blurred image based on border deformation detection: a traffic sign restoration model.

    Directory of Open Access Journals (Sweden)

    Yiliang Zeng

    Full Text Available Due to the rapid development of motor vehicle Driver Assistance Systems (DAS, the safety problems associated with automatic driving have become a hot issue in Intelligent Transportation. The traffic sign is one of the most important tools used to reinforce traffic rules. However, traffic sign image degradation based on computer vision is unavoidable during the vehicle movement process. In order to quickly and accurately recognize traffic signs in motion-blurred images in DAS, a new image restoration algorithm based on border deformation detection in the spatial domain is proposed in this paper. The border of a traffic sign is extracted using color information, and then the width of the border is measured in all directions. According to the width measured and the corresponding direction, both the motion direction and scale of the image can be confirmed, and this information can be used to restore the motion-blurred image. Finally, a gray mean grads (GMG ratio is presented to evaluate the image restoration quality. Compared to the traditional restoration approach which is based on the blind deconvolution method and Lucy-Richardson method, our method can greatly restore motion blurred images and improve the correct recognition rate. Our experiments show that the proposed method is able to restore traffic sign information accurately and efficiently.

  16. Signs, Systems and Complexity of Transmedia Storytelling

    Directory of Open Access Journals (Sweden)

    Renira Rampazzo Gambarato

    2012-12-01

    Full Text Available This article addresses key concepts such as sign, system and complexity in order to approach transmedia storytelling and better understand its intricate nature. The theoretical framework chosen to investigate transmedia storytelling meanders is Semiotics by Charles Sanders Peirce (1839-1914 and General Systems Theory by Mario Bunge (1919-. The complexity of transmedia storytelling is not simply the one of the signs of the works included in a transmedia franchise. It also includes the complexity of the dispositions of users/consumers/players as interpreters of semiotic elements (e.g. characters, themes, environments, events and outcomes presented by transmedia products. It extends further to the complexity of social, cultural, economical and political constructs. The German transmedia narrative The Ultimate SuperHero-Blog by Stefan Gieren and Sofia’s Diary, a Portuguese multiplatform production by BeActive, are presented as examples of closed and open system transmedia storytelling respectively.

  17. Saudi Arabia and CERN sign protocol

    CERN Multimedia

    2008-01-01

    On 9 May 2008, Mohammed I. Al Suwaiyel, President of the King Abdulaziz City of Science and Technology, representing the Government of Saudi Arabia, and CERN Director-General, Robert Aymar, signed a protocol to the 2006 cooperation agreement between CERN and Saudi Arabia. Members of the Saudi Arabian Government visit ATLAS.The purpose of the protocol is to define the operational framework needed to carry out various specific tasks provided for in the cooperation agreement in order to promote the development of a high energy particle physics community in Saudi Arabia and its ultimate visible participation as a member of the global CERN community. Signing the protocol, Mohammed I. Al-Suwaiyel said: "The Saudi Arabian Government has taken a number of initiatives to promote R&D in the interests of our country’s development and the advancement of science. Thanks to this protocol, Saudi scientists will be able to work towards this go...

  18. Sign Language Recognition using Neural Networks

    Directory of Open Access Journals (Sweden)

    Sabaheta Djogic

    2014-11-01

    Full Text Available – Sign language plays a great role as communication media for people with hearing difficulties.In developed countries, systems are made for overcoming a problem in communication with deaf people. This encouraged us to develop a system for the Bosnian sign language since there is a need for such system. The work is done with the use of digital image processing methods providing a system that teaches a multilayer neural network using a back propagation algorithm. Images are processed by feature extraction methods, and by masking method the data set has been created. Training is done using cross validation method for better performance thus; an accuracy of 84% is achieved.

  19. Hyperdense middle cerebral artery CT sign

    International Nuclear Information System (INIS)

    Bastianello, S.; Pierallini, A.; Colonnese, C.; Brughitta, G.; Angeloni, U.; Antonelli, M.; Fantozzi, L.M.; Fieschi, C.; Bozzao, L.

    1991-01-01

    The early CT finding of an hyperdensity of a portion of the middle cerebral artery Hyperdense Middle Cerebral Artery Sign (HMCAS), in patients with supratentorial stroke, is often indicative of an embolic occlusion. Aim of this study was to verify the incidence and reliability of the HMCAS and its possible correlation with early CT findings and with the extent of late brain damage. We studied 36 patients presenting with symptoms of stroke in the MCA territory, by means of CT and angiography performed respectively within 4 and 6 hours. Follow-up CT scans were then obtained after one week and three months from the ischemic event. The HMCAS was present in 50% of our patients and in this group it always correlated positively with the angiographic finding of occlusion. The same group presented a high incidence of early CT hypodensity (88%). Finally the presence of HMCAS might be considered a negative prognostic sign for the development of extensive brain damage. (orig.)

  20. A sign-theoretic approach to biotechnology

    DEFF Research Database (Denmark)

    Bruni, Luis Emilio

    ” semiotic networks across hierarchical levels and for relating the different emergent codes in living systems. I consider this an important part of the work because there I define some of the main concepts that will help me to analyse different codes and semiotic processes in living systems in order...... to exemplify what is the relevance of a sign-theoretic approach to biotechnology. In particular, I introduce the notion of digital-analogical consensus as a semiotic pattern for the creation of complex logical products that constitute specific signs. The chapter ends with some examples of conspicuous semiotic...... to exemplify how a semiotic approach can be of help when organising the knowledge that can lead us to understanding the relevance, the role and the position of signal transduction networks in relation to the larger semiotic networks in which they function, i.e.: in the hierarchical formal processes of mapping...

  1. Sign language for the information society: an ICT roadmap for South African Sign Language

    CSIR Research Space (South Africa)

    Olivrin, G

    2008-11-01

    Full Text Available of work made in SASL. There is currently no collection of the cultural and linguistic heritage of SASL. Public signage and localisation: Provision for SASL-specifi c sign names of places, people, companies and brands, as well as the localisation... upgrading the aging data and voice infrastructures for visual grade technologies, new usages of technologies will emerge in public signage and communications, in advertising and for visual languages such as SASL. Research and development in Sign Language...

  2. "Hearing" the signs:influence of sign language in an inclusive classroom

    OpenAIRE

    Monney, M. (Mariette)

    2017-01-01

    Abstract Finding new methods to achieve the goals of Education For All is a constant worry for primary school teachers. Multisensory methods have been proved to be efficient in the past decades. Sign Language, being a visual and kinesthetic language, could become a future educational tool to fulfill the needs of a growing diversity of learners. This ethnographic study describes how Sign Language exposure in inclusive classr...

  3. Autocorrelation descriptor improvements for QSAR: 2DA_Sign and 3DA_Sign

    Science.gov (United States)

    Sliwoski, Gregory; Mendenhall, Jeffrey; Meiler, Jens

    2016-03-01

    Quantitative structure-activity relationship (QSAR) is a branch of computer aided drug discovery that relates chemical structures to biological activity. Two well established and related QSAR descriptors are two- and three-dimensional autocorrelation (2DA and 3DA). These descriptors encode the relative position of atoms or atom properties by calculating the separation between atom pairs in terms of number of bonds (2DA) or Euclidean distance (3DA). The sums of all values computed for a given small molecule are collected in a histogram. Atom properties can be added with a coefficient that is the product of atom properties for each pair. This procedure can lead to information loss when signed atom properties are considered such as partial charge. For example, the product of two positive charges is indistinguishable from the product of two equivalent negative charges. In this paper, we present variations of 2DA and 3DA called 2DA_Sign and 3DA_Sign that avoid information loss by splitting unique sign pairs into individual histograms. We evaluate these variations with models trained on nine datasets spanning a range of drug target classes. Both 2DA_Sign and 3DA_Sign significantly increase model performance across all datasets when compared with traditional 2DA and 3DA. Lastly, we find that limiting 3DA_Sign to maximum atom pair distances of 6 Å instead of 12 Å further increases model performance, suggesting that conformational flexibility may hinder performance with longer 3DA descriptors. Consistent with this finding, limiting the number of bonds in 2DA_Sign from 11 to 5 fails to improve performance.

  4. Jean Rouch: sign, true and thought

    Directory of Open Access Journals (Sweden)

    Ana Paula Oliveira

    2014-12-01

    Full Text Available This article is based on a fundamental question: thinking cinema verite documentary created by Jean Rouch from Deleuze’s power of the false problematic to highlight the singularities of images and signs that make it up. The cinematographic images created by Rouch allowing that thought be taken to maximum intensity and the process of artistic creation make speakable the unspeakable, audible the inaudible and visible the invisible.  

  5. Influence of gravity upon some facial signs.

    Science.gov (United States)

    Flament, F; Bazin, R; Piot, B

    2015-06-01

    Facial clinical signs and their integration are the basis of perception than others could have from ourselves, noticeably the age they imagine we are. Facial modifications in motion and their objective measurements before and after application of skin regimen are essential to go further in evaluation capacities to describe efficacy in facial dynamics. Quantification of facial modifications vis à vis gravity will allow us to answer about 'control' of facial shape in daily activities. Standardized photographs of the faces of 30 Caucasian female subjects of various ages (24-73 year) were successively taken at upright and supine positions within a short time interval. All these pictures were therefore reframed - any bias due to facial features was avoided when evaluating one single sign - for clinical quotation by trained experts of several facial signs regarding published standardized photographic scales. For all subjects, the supine position increased facial width but not height, giving a more fuller appearance to the face. More importantly, the supine position changed the severity of facial ageing features (e.g. wrinkles) compared to an upright position and whether these features were attenuated or exacerbated depended on their facial location. Supine station mostly modifies signs of the lower half of the face whereas those of the upper half appear unchanged or slightly accentuated. These changes appear much more marked in the older groups, where some deep labial folds almost vanish. These alterations decreased the perceived ages of the subjects by an average of 3.8 years. Although preliminary, this study suggests that a 90° rotation of the facial skin vis à vis gravity induces rapid rearrangements among which changes in tensional forces within and across the face, motility of interstitial free water among underlying skin tissue and/or alterations of facial Langer lines, likely play a significant role. © 2015 Society of Cosmetic Scientists and the Société Fran

  6. Clothing-related eponyms and signs

    Directory of Open Access Journals (Sweden)

    Valencia Long

    2016-01-01

    Full Text Available The world of dermatology is pieced together by clinical conditions unique in their colors, morphology, and configuration. Dermatological signs and terms are influenced by etymology, language, and history. Eponyms also make dermatology a fascinating but linguistically challenging subject. This article reviews dermatological conditions described in relation to fashion, and what we wear in everyday life from top to toe, demonstrating that dermatology can be inspired even in the most common things.

  7. Vital Signs-Alcohol Poisoning Deaths

    Centers for Disease Control (CDC) Podcasts

    2015-01-06

    This podcast is based on the January 2015 CDC Vital Signs report. In the United States, an average of six people die every day from alcohol poisoning. Learn what you can do to prevent binge drinking and alcohol poisoning.  Created: 1/6/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 1/6/2015.

  8. CDC Vital Signs-Preventing Melanoma

    Centers for Disease Control (CDC) Podcasts

    2015-06-02

    This podcast is based on the June 2015 CDC Vital Signs report. Skin cancer is the most common form of cancer in the U.S. In 2011, there were more than 65,000 cases of melanoma, the most deadly form of skin cancer. Learn how everyone can help prevent skin cancer.  Created: 6/2/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 6/2/2015.

  9. Vital Signs-Preventing Prescription Drug Overdose

    Centers for Disease Control (CDC) Podcasts

    2014-07-01

    This podcast is based on the July 2014 CDC Vital Signs report. Every day, 46 people in the U.S. die from an overdose of prescription opioid painkillers. Learn what can be done to make painkiller prescribing safer and help prevent overdoses.  Created: 7/1/2014 by National Center for Immunization and Respiratory Diseases (NCIRD).   Date Released: 7/1/2014.

  10. Vital Signs-Preventing Teen Pregnancy

    Centers for Disease Control (CDC) Podcasts

    2015-04-07

    This podcast is based on the April 2015 CDC Vital Signs report. Teen births in the U.S. have declined, but still, more than 273,000 infants were born to teens ages 15 to 19 in 2013. Learn about the most effective types of birth control.  Created: 4/7/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 4/7/2015.

  11. CDC Vital Signs-Heroin Epidemic

    Centers for Disease Control (CDC) Podcasts

    2015-07-07

    This podcast is based on the July 2015 CDC Vital Signs report. Heroin use and heroin-related overdose deaths are increasing. Most people are using it with other drugs, especially prescription opioid painkillers. Learn what can be done to prevent and treat the problem.  Created: 7/7/2015 by National Center for Injury Prevention and Control (NCIPC).   Date Released: 7/7/2015.

  12. Syndicated Loan Signed for CPECC'S KUWAIT Project

    Institute of Scientific and Technical Information of China (English)

    1997-01-01

    @@ China Petroleum Engineering Construction Corp. (CPECC) has got a syndicated loan of 80 million USD from a consortium composed of 15 banks of Japan, Germany, France, Netherlands and Belgium with Sanwa Bank Hongkong Branch as the arrangement bank. The loan will be used for building a multiple well manifold production station (MWMPS) in Kuwait. The signing ceremony for the loan agreement was held in late January 1997.

  13. Sinopec and COSCO Sign Strategic Partnership Agreement

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    @@ Sinopec and China Ocean Shipping (Group)Company (COSCO), the country's biggest shipping company, signed a framework cooperation agreement on June 18 in Beijing, under which COSCO would provide quality crude oil transport from the current 1.94 million deadweight tons. The ambitious plan was made to chter to COSCO's establishment of a long-term strategic partnership for cooperation with Sinopec, China's leading producer and supplier of petroleum products.

  14. Habitable worlds with no signs of life

    OpenAIRE

    Cockell, Charles S.

    2014-01-01

    ‘Most habitable worlds in the cosmos will have no remotely detectable signs of life’ is proposed as a biological hypothesis to be tested in the study of exoplanets. Habitable planets could be discovered elsewhere in the Universe, yet there are many hypothetical scenarios whereby the search for life on them could yield negative results. Scenarios for habitable worlds with no remotely detectable signatures of life include: planets that are habitable, but have no biosphere (Uninhabited Habitable...

  15. CDC Vital Signs-Heart Age

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the September 2015 CDC Vital Signs report. Your heart age is the age of your heart and blood vessels as a result of your risk factors for heart attack and stroke. If you smoke or have high blood pressure, your heart age will be much higher than your actual age. Learn what you can do to lower your heart age and keep it low.

  16. CDC Vital Signs-Hispanic Health

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the May 2015 CDC Vital Signs report. About one in six people living in the U.S. are Hispanic. The two leading causes of death in this group are heart disease and cancer, accounting for two out of five deaths. Unfortunately, many Hispanics face considerable barriers to getting high quality health care, including language and low income. Learn what can be done to reduce the barriers.

  17. South African sign language assistive translation

    CSIR Research Space (South Africa)

    Olivrin, GJ

    2008-04-01

    Full Text Available , the fact that the target structure is SASL, the home language of the Deaf user, already facilitates the communication. Ul- timately the message will be delivered more naturally by a signing avatar [14]. We shall present further scenarios for future... Work 6.1 Disambiguation Disambiguation can be improved on two levels: firstly, by eliciting more or better information from the user through the AAC interface and secondly, by improving certain as- pects of the MT system. We discuss both...

  18. Skew-signings of positive weighted digraphs

    Directory of Open Access Journals (Sweden)

    Kawtar Attas

    2018-07-01

    Full Text Available An arc-weighted digraph is a pair (D , ω where D is a digraph and ω is an arc-weight function that assigns to each arc u v of D a nonzero real number ω (u v . Given an arc-weighted digraph (D , ω with vertices v 1 , … , v n , the weighted adjacency matrix of (D , ω is defined as the n × n matrix A (D , ω = [ a i j ] where a i j = ω ( v i v j if v i v j is an arc of D , and 0 otherwise. Let (D , ω be a positive arc-weighted digraph and assume that D is loopless and symmetric. A skew-signing of (D , ω is an arc-weight function ω ′ such that ω ′ (u v = ± ω (u v and ω ′ (u v ω ′ (v u < 0 for every arc u v of D . In this paper, we give necessary and sufficient conditions under which the characteristic polynomial of A (D , ω ′ is the same for all skew-signings ω ′ of (D , ω . Our main theorem generalizes a result of Cavers et al. (2012 about skew-adjacency matrices of graphs. Keywords: Arc-weighted digraphs, Skew-signing of a digraph, Weighted adjacency matrix, Mathematics Subject Classification: 05C22, 05C31, 05C50

  19. [Signs of the zodiac and personality].

    Science.gov (United States)

    Angst, J; Scheidegger, P

    1976-01-01

    3074 young men resident in the canton of Zurich, representing 50% of the 19 year old male population, form the fully representative sample of our large scale investigation. We investigated whether personality traits measured by means of the differentiated "Freiburger personality inventory" (FPI) could in any way be correlated to the signs of the zodiac under which the young men were born. The statistical analysis did not reveal any correlation between signs of the zodiac and personality. The claim made by astrologers that people can be characterized according to their sign of the zodiac (sagitarius, taurus, cancer, scorpion) must be refuted. Of course the astrologically founded description of human personality does not base itself on the position of the sun only, however the latter does form a very essential part of the astrological evaluation of people. This, at any rate has been shown to be without any scientific basis. The fact that astrological evaluation of human personality is so popular nowadays can be explained by the fact that even modern people are inclined towards magical thinking.

  20. Phonological reduplication in sign language: rules rule

    Directory of Open Access Journals (Sweden)

    Iris eBerent

    2014-06-01

    Full Text Available Productivity—the hallmark of linguistic competence—is typically attributed to algebraic rules that support broad generalizations. Past research on spoken language has documented such generalizations in both adults and infants. But whether algebraic rules form part of the linguistic competence of signers remains unknown. To address this question, here we gauge the generalization afforded by American Sign Language (ASL. As a case study, we examine reduplication (X→XX—a rule that, inter alia, generates ASL nouns from verbs. If signers encode this rule, then they should freely extend it to novel syllables, including ones with features that are unattested in ASL. And since reduplicated disyllables are preferred in ASL, such rule should favor novel reduplicated signs. Novel reduplicated signs should thus be preferred to nonreduplicative controls (in rating, and consequently, such stimuli should also be harder to classify as nonsigns (in the lexical decision task. The results of four experiments support this prediction. These findings suggest that the phonological knowledge of signers includes powerful algebraic rules. The convergence between these conclusions and previous evidence for phonological rules in spoken language suggests that the architecture of the phonological mind is partly amodal.

  1. Determining Directional Dependency in Causal Associations

    Science.gov (United States)

    Pornprasertmanit, Sunthud; Little, Todd D.

    2012-01-01

    Directional dependency is a method to determine the likely causal direction of effect between two variables. This article aims to critique and improve upon the use of directional dependency as a technique to infer causal associations. We comment on several issues raised by von Eye and DeShon (2012), including: encouraging the use of the signs of…

  2. Comparison of Spot Sign, Blend Sign and Black Hole Sign for Outcome Prediction in Patients with Intracerebral Hemorrhage.

    Science.gov (United States)

    Sporns, Peter B; Schwake, Michael; Kemmling, André; Minnerup, Jens; Schwindt, Wolfram; Niederstadt, Thomas; Schmidt, Rene; Hanning, Uta

    2017-09-01

    Blend sign (BS) and black hole sign (BHS) on non-contrast computed tomography (NCCT) and spot sign (SS) on CT-angiography (CTA) are indicators of early hematoma expansion in spontaneous intracerebral hemorrhage (ICH). However, their independent contributions to outcome have not been well explored. In this retrospective study, inclusion criteria were: 1) spontaneous ICH and 2) NCCT and CTA performed on admission within 6 hours after onset of symptoms. Discharge outcome was dichotomized as good (modified Rankin Scale [mRS] 0-3) and poor (mRS 4-6) outcomes. The impacts of BHS, BS and SS on outcome were assessed in univariate and multivariable logistic regression models. Of 182 patients with spontaneous ICH, 26 (14.3%) presented with BHS, 37 (20.3%) with BS and 39 (21.4%) with SS. There was a substantial correlation between SS and BS (κ=0.701) and a moderate correlation between SS and BHS (κ=0.424). In univariable logistic regression, higher baseline hematoma volume ( P <0.001), intraventricular hemorrhage ( P =0.002) and the presence of BHS/BS/SS (all P <0.001) on admission CT scan were associated with poor outcome. Multivariable analysis identified intraventricular haemorrhage (odds ratio [OR] 2.22 per mL, P =0.022), baseline hematoma volume (OR 1.03 per mL, P <0.001) and SS on CTA (OR 11.43, P <0.001) as independent predictors of poor outcome, showing that SS compared to BS and BHS was more powerful to predict poor outcome. The NCCT BHS and BS are correlated with the CTA SS and are reliable predictors of poor outcome in patients with ICH. Of the CT variables indicating early hematoma expansion, SS on CTA was the most reliable outcome predictor. However, given their correlation with SS on CTA, BS and BHS on NCCT can be useful for predicting outcome if CTA is not obtainable.

  3. Animal-eyeball vs. road-sign retroreflectors.

    Science.gov (United States)

    Greene, Nathaniel R; Filko, Brian J

    2010-01-01

    The retroreflective characteristics of ex-vitro cow and deer eyeballs were compared to those of man-made materials used in road signs and bicycle-style reflectors. Reflected intensities were measured using a goniometer that consists of a green He-Ne laser as the light source, and a photomultiplier tube as the detector. It was found that the best quality road-sign reflector, made from a 200-micron-scale, close-packed array of corner cubes, is approximately six times more efficient than a cow eyeball at returning light in the direction of the incoming beam. Less expensive man-made retroreflectors, utilizing 35-micron glass beads (as in mailbox decals) or millimeter-scale arrays of corner cubes (bicycle-style reflectors) are, however, less efficient than the cow eye. The high quality of animal eyeball optics is evidenced by their extremely tight angular spread (full width half maximum congruent with 1 degrees) of retroreflected intensity about the incident path. Moreover, as the reflector itself is rotated relative to the incident beam, the eyeballs preserve their efficiency of retroreflection better than the man-made materials. Interference-diffraction patterns were observed in the retroreflected beams from the small-scale corner cubes, but were not observed in eyeball retroreflection.

  4. The halo sign and peripancreatic fluid: useful CT signs of hypovolaemic shock complex in adults

    International Nuclear Information System (INIS)

    Ryan, M.F.; Hamilton, P.A.; Sarrazin, J.; Chu, P.; Benjaminov, O.; Lam, K.

    2005-01-01

    AIM: To report two new, useful computed tomography (CT) signs of the hypovolaemic shock complex (HSC) in adults admitted after blunt abdominal trauma: the halo sign (ring of fluid around a collapsed intra-hepatic inferior vena cava (IVC)), and peripancreatic retroperitoneal fluid. MATERIALS AND METHODS: CT images of 498 consecutive patients admitted after blunt abdominal trauma were reviewed, of which 27 had CT signs of the HSC. The CT images of these 27 patients were analysed. A control group of 101 patients examined using CT for suspected blunt abdominal trauma who did not have the HSC were chosen for comparison. RESULTS: The most common features involved the vascular compartment: diminished IVC diameter (n=27), a positive halo sign (n=21); diminished anteroposterior diameter of the aorta (n=13); and abnormal vascular enhancement (n=10). Peripancreatic retroperitoneal fluid in the absence of pancreatic injury, pancreatitis or pancreatic disease was observed in eight patients. Hollow visceral abnormalities included: diffuse increased mucosal enhancement of both the small and large bowel (n=19); diffuse thickening of the small bowel wall (n=11); and small bowel dilatation (n=7). Solid visceral abnormalities included both decreased and or increased enhancement. Several concomitant intra- and extra-abdominal injuries were also identified. CONCLUSION: In the setting of blunt abdominal trauma, early abdominal CT can show diffuse abnormalities due to the HSC, which occasionally may alert clinicians of unsuspected shock. Recognition of these signs as distinguished from injured viscera is important in order to avoid unnecessary laparotomy. Two new signs are described: the halo sign and peripancreatic retroperitoneal fluid

  5. The halo sign and peripancreatic fluid: useful CT signs of hypovolaemic shock complex in adults

    Energy Technology Data Exchange (ETDEWEB)

    Ryan, M.F.; Hamilton, P.A.; Sarrazin, J.; Chu, P.; Benjaminov, O.; Lam, K

    2005-05-01

    AIM: To report two new, useful computed tomography (CT) signs of the hypovolaemic shock complex (HSC) in adults admitted after blunt abdominal trauma: the halo sign (ring of fluid around a collapsed intra-hepatic inferior vena cava (IVC)), and peripancreatic retroperitoneal fluid. MATERIALS AND METHODS: CT images of 498 consecutive patients admitted after blunt abdominal trauma were reviewed, of which 27 had CT signs of the HSC. The CT images of these 27 patients were analysed. A control group of 101 patients examined using CT for suspected blunt abdominal trauma who did not have the HSC were chosen for comparison. RESULTS: The most common features involved the vascular compartment: diminished IVC diameter (n=27), a positive halo sign (n=21); diminished anteroposterior diameter of the aorta (n=13); and abnormal vascular enhancement (n=10). Peripancreatic retroperitoneal fluid in the absence of pancreatic injury, pancreatitis or pancreatic disease was observed in eight patients. Hollow visceral abnormalities included: diffuse increased mucosal enhancement of both the small and large bowel (n=19); diffuse thickening of the small bowel wall (n=11); and small bowel dilatation (n=7). Solid visceral abnormalities included both decreased and or increased enhancement. Several concomitant intra- and extra-abdominal injuries were also identified. CONCLUSION: In the setting of blunt abdominal trauma, early abdominal CT can show diffuse abnormalities due to the HSC, which occasionally may alert clinicians of unsuspected shock. Recognition of these signs as distinguished from injured viscera is important in order to avoid unnecessary laparotomy. Two new signs are described: the halo sign and peripancreatic retroperitoneal fluid.

  6. Comparative effects of split Orimulsion reg-sign, fuel oil number-sign 6 and Lago Medio Crude oil over functional variables of an estuarine community

    International Nuclear Information System (INIS)

    Quilici, A.; Rodriguez-Grau, J.; Vasquez, P.; Infante, C.; Schiazza, J. La; Briceno, H.; Pereira, N.

    1995-01-01

    This study evaluates the effects, on comparative bases, of three different kinds of hydrocarbon products, on physiological and dynamic parameters of a mangrove community (located East of Venezuela), by experimentally monitoring changes on those parameters using Laguncularia racemosa as a bioindicator mangrove species. Orimulsion reg-sign has been introduced recently in the World market; and it is, in essence, an emulsion produced from bitumen mixed with water and stabilized with a surfactant. Results indicate that litter disappearance rate, a parameter directly related to nutrient cycling and dynamics, is not altered by the split Orimulsion reg-sign, when compared to controls; while the other hydrocarbon products tested, seem to exert an impact over this parameter. In addition, Orimulsion reg-sign, is less retained in mangrove sediments compared with the other two products, as indicated by the remaining percent mean of total hydrocarbon soil content sampled on the same consecutive dates. Nonetheless, the photosynthetic capacity of leaves as well as soil respiratory rates, monitored at treatment and control plots, were not affected by any of the products tested. In conclusion, L. racemosa, in terms of its photosynthetic capacity, is not directly affected by any of the hydrocarbon products tested, nor does there seem to be an effect on soil respiration; however, Orimulsion reg-sign, in contrast to the other products, does not seem to be causing an impact with regard to litter dynamics

  7. THE COMPUTER SIMULATOR-CONTROLLER FOR LEARNING SIGN AND SYMBOLIC MEANS OF PHYSICS

    Directory of Open Access Journals (Sweden)

    N.I. Tikhonskaya

    2012-10-01

    Full Text Available The promising application of information technology for learning sign and symbolic means of physics is proposed and theoretically proved in this article. This direction is connected with the idea of training students the presentation of information in different forms.

  8. CDC Vital Signs–Motor Vehicle Crash Deaths

    Centers for Disease Control (CDC) Podcasts

    This podcast is based on the July 2016 CDC Vital Signs report. In the U.S., about 90 people die in motor vehicle crashes each day and thousands more are injured, resulting in hundreds of millions of dollars in direct medical costs each year. Learn what you can do to stay safe.

  9. Analysis of factors temporarily impacting traffic sign readability

    Directory of Open Access Journals (Sweden)

    Majid Khalilikhah

    2016-10-01

    Full Text Available Traffic sign readability can be affected by the existence of dirt on traffic sign faces. However, among damaged signs, dirty traffic signs are unique since their damage is not permanent and they just can be cleaned instead of replaced. This study aimed to identify the most important factors contributing to traffic sign dirt. To do so, a large number of traffic signs in Utah were measured by deploying a vehicle instrumented with mobile LiDAR imaging and digital photolog technologies. Each individual daytime digital image was inspected for dirt. Location and climate observations obtained from official sources were compiled using ArcGIS throughout the process. To identify contributing factors to traffic sign dirt, the chi-square test was employed. To analyze the data and rank all of the factors based on their importance to the sign dirt, Random forests statistical model was utilized. After analyzing the data, it can be concluded that ground elevation, sign mount height, and air pollution had the highest effect on making traffic signs dirty. The findings of this investigation assist transportation agencies in determining traffic signs with a higher likelihood of sign dirt. In this way, agencies would schedule to clean such traffic signs more frequently.

  10. Electronic structure of C28, Pa at sign C28, and U at sign C28

    International Nuclear Information System (INIS)

    Zhao, K.; Pitzer, R.M.

    1996-01-01

    Electronic structure calculations, including relativistic core potentials and the spin-orbit interaction, have been carried out on the C 28 , Pa at sign C 28 , and U at sign C 28 species. Excitation energies, spin-orbit splittings, the electron affinity, and the ionization potential are computed for C 28 . The ground state of C 28 is described well by the Hartree-Fock wave functions, but other states are not. The computed electron affinity and ionization potential are similar to those of C 60 . Strong metal-cage binding is found for Pa at sign C 28 and U at sign C 28 , similar to that in U(C 8 H 8 ) 2 . The ground electronic states depend on the order of the lowest-energy cage π * and metal 5f orbitals, with (π * ) 1 and (π * ) 1 (5f) 1 found to be the ground electronic configurations for the two complexes. U at sign C 28 is found to be diamagnetic. 30 refs., 1 fig., 13 tabs

  11. Useful radiologic sign in diagnosis of peripheral lung cancer: Nucleohalo sign and its pathologic basis

    International Nuclear Information System (INIS)

    Wang, H.; Shi, D.

    1994-01-01

    The authors investigated the x-ray findings of 117 patients with peripheral lung cancer proved by operation and pathology, of them 35(29.9%) cases were found to have the 'nucleohalo sign', 6(13.6%) in 44 cases of solitary metastatic lung cancers, but none in 167 cases of benign lung nodular lesions and 4 cases of primary lung sarcoma and lymphoma. Radiologic and pathologic correlative study of the nucleohalo sign with surgical specimens of 14 lung cancers suggested that the cancerous parenchymas in nuclear areas were more than the interstitices in 12 cases and the other 2 were equal in both parenchymas and interstitices. Instead, the cancerous parenchymas in halo areas were less than cancerous interstitices in all cases. Dynamic observation of the 'nucleohalo sign' showed that this sign was an appearance of a stage in cancer growth. It is considered a very important sign in x-ray diagnosis of peripheral lung cancer, especially in the early diagnosis of lung cancer under or equal to 3 cm in diameter

  12. DIFFERENCES BETWEEN AMERICAN SIGN LANGUAGE (ASL AND BRITISH SIGN LANGUAGE (BSL

    Directory of Open Access Journals (Sweden)

    Zora JACHOVA

    2008-06-01

    Full Text Available In the communication of deaf people between them­selves and hearing people there are three ba­sic as­pects of interaction: gesture, finger signs and writing. The gesture is a conditionally agreed manner of communication with the help of the hands followed by face and body mimic. The ges­ture and the move­ments pre-exist the speech and they had the purpose to mark something, and later to emphasize the speech expression.Stokoe was the first linguist that realised that the signs are not a whole that can not be analysed. He analysed signs in insignificant parts that he called “chemeres”, and many linguists today call them pho­nemes. He created three main phoneme catego­ries: hand position, location and movement.Sign languages as spoken languages have back­ground from the distant past. They developed par­allel with the development of spoken language and undertook many historical changes. Therefore, to­day they do not represent a replacement of the spoken language, but are languages themselves in the real sense of the word.Although the structures of the English language used in USA and in Great Britain is the same, still their sign languages-ASL and BSL are different.

  13. [Clinical symptoms and signs in Kimmerle anomaly].

    Science.gov (United States)

    Split, Wojciech; Sawrasewicz-Rybak, Małgorzata

    2002-01-01

    The aim of the study was to consider Kimmerle anomaly (ponticulus posterior of the atlas) as an anatomic variant, which can cause a set of clinical symptoms and signs. A hundred and eight patients, 58 females and 50 males at the age of 18-59 years (M. 36.9 years, SD = 9.6) with radiologically verified Kimmerle anomaly were examined. A control group comprised 40 healthy subjects at the similar age range. The diagnosis of headaches was based on the criteria proposed by the IHS. A character of headaches, their localization, frequency, duration, number of days with headaches per year, circumstances associated with their onset and concomitant symptoms were evaluated. All the patients were subjected to electrophysiological studies (ENG, EEG and VEP). The results were statistically analyzed using a SPSS/PC+ computer system. It was revealed that clinical symptoms and signs in Kimmerle anomaly occurred most frequently in the third and fourth decade of life (65% of cases). These were most often tension-type headaches (50% of cases with headaches), vascular headaches (26% of cases) and neuralgia (24% of cases). Intensity of headaches was high. Headaches were accompanied by other complaints like vertigo (59% of cases) and in one third of cases--nausea. About 10% of patients also suffered from vomiting, paresthesia, dizziness, short periods of loss of consciousness. Sporadically--tinitus, drop attack, and vegetative symptoms. In cases without pain the most frequent signs were short periods of loss of consciousness, dizziness, and also nausea and dizziness. The EEG examination revealed pathology in 40% of patients with Kimmerle anomaly. The ENG examination in more than 33% of anomaly cases showed injury in the central part of vestibular system. Improper answers were reported in about 75% of the patients during the VEP examination.

  14. IAEA, Fukushima Prefecture Sign Cooperation Memorandum

    International Nuclear Information System (INIS)

    2012-01-01

    Full text: IAEA Director General Yukiya Amano and the Governor of Fukushima Prefecture, Yuhei Sato, today signed a Memorandum of Cooperation confirming their willingness to implement concrete projects to help alleviate the consequences of the accident at TEPCO's Fukushima Daiichi Nuclear Power Station. The Memorandum, signed on the sidelines of the three-day Fukushima Ministerial Conference on Nuclear Safety, includes arrangements to promote cooperation in two key areas: one on radiation monitoring and remediation between the IAEA and Fukushima Prefecture, and the other on human health between the IAEA and Fukushima Medical University. The Memorandum also highlights plans for a training centre in Fukushima Prefecture to help reinforce emergency preparedness and response activities, supported by the Government of Japan and Fukushima Prefecture. An IAEA Response and Assistance Network (RANET) Capacity Building Centre will be designated, with IAEA radiation monitoring equipment to be deployed in case of need, and to provide training in emergency preparedness and response in Japan and the Asia Pacific region. 'With this framework, the wisdom of the international community as well as the IAEA will be utilised in the process of reconstruction in Fukushima', said Japan's Minister of Foreign Affairs, Koichiro Gemba, who attended the signing ceremony. 'I'm very much encouraged by the conclusion of this Memorandum and I believe this will serve to promote reconstruction in Fukushima', said Governor Sato. 'We will also be able to disseminate to the rest of the world the knowledge and experience to be gained from the activities that we are conducting, and we hope this will be a symbol of Fukushima'. 'The IAEA has expertise in the areas of remediation and decontamination, as well as environmental monitoring and human health'. said Director General Amano. 'It is our hope that we will support Fukushima and at the same time serve as a bridge connecting the Prefecture and the world

  15. Signs of learning in kinaesthetic science activities

    DEFF Research Database (Denmark)

    Bruun, Jesper; Johannsen, Bjørn Friis

    that students use bodily explorations to construct meaning and understanding from kinaesthetic learning that is relevant to school physics? To answer the question, we employ a semiotics perspective to analyse data from a 1-hour lesson for 8-9th graders which introduced students to kinaesthetic activities, where......?”). The analysis is conducted by searching the data to find episodes that illustrate student activity which can serve as a sign of the object that the ‘experiential gestalt of causation’ is employed in the construction of the intended learning outcome. In essence, we study a chaotic but authentic teaching...

  16. Vital Signs-Cervical Cancer is Preventable!

    Centers for Disease Control (CDC) Podcasts

    2014-11-05

    This podcast is based on the November 2014 CDC Vital Signs report. Every visit to a doctor or nurse is an opportunity to prevent cervical cancer. Women can get a Pap test and HPV test to help prevent cervical cancer and adolescent boys and girls can get the HPV vaccination series to help prevent cervical and other cancers.  Created: 11/5/2014 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 11/5/2014.

  17. CDC Vital Signs-Heart Age

    Centers for Disease Control (CDC) Podcasts

    2015-09-01

    This podcast is based on the September 2015 CDC Vital Signs report. Your heart age is the age of your heart and blood vessels as a result of your risk factors for heart attack and stroke. If you smoke or have high blood pressure, your heart age will be much higher than your actual age. Learn what you can do to lower your heart age and keep it low.  Created: 9/1/2015 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 9/1/2015.

  18. CDC Vital Signs-Hispanic Health

    Centers for Disease Control (CDC) Podcasts

    2015-05-05

    This podcast is based on the May 2015 CDC Vital Signs report. About one in six people living in the U.S. are Hispanic. The two leading causes of death in this group are heart disease and cancer, accounting for two out of five deaths. Unfortunately, many Hispanics face considerable barriers to getting high quality health care, including language and low income. Learn what can be done to reduce the barriers.  Created: 5/5/2015 by Office of Minority Health & Health Equity (OMHHE).   Date Released: 5/5/2015.

  19. Iran and Russia signed nuclear agreement

    International Nuclear Information System (INIS)

    Anon

    2006-01-01

    This paper deals with signing of agreement between Russian Federation and Iran about nuclear fuel for nuclear power plant which is constructed. It was happened only three days after Bratislava Summit between presidents G. Bush and V. Putin. Supply of nuclear fuel should be started up to two months and the nuclear power plant with value eight hundred U. S. dollars should be commissioned next year. According to this agreement spent fuel will be sent back to Russia. After this manner it should be prevented the possibility that Iran will use spent fuel for producing of nuclear bomb

  20. Fast micrographia: An unusual but distinctive sign

    Directory of Open Access Journals (Sweden)

    Umaiorubahan Meenakshisundaram

    2013-01-01

    Full Text Available Fast micrographia is a rare clinical sign, which is reported in patients with pallidal pathology. A 68-year-old male presented with hypophonia and short shuffling gait with decreased arm swing. About 3 weeks before, he had an acute myocardial infarction and a period of hemodynamic and respiratory distress during which he required mechanical ventilatory support. He was found to have a fast handwriting with micrographia from the outset. His rapid alternating hand and finger movements were normal. Magnetic resonance imaging (MRI of the brain showed features of hypoxic ischemic encephalopathy including hyperintensities on T1 and T2 weighted images in the globus pallidus, and putamen bilaterally.

  1. Regularisation of 3D Signed Distance Fields

    DEFF Research Database (Denmark)

    Paulsen, Rasmus Reinhold; Bærentzen, Jakob Andreas; Larsen, Rasmus

    2009-01-01

    Signed 3D distance fields are used a in a variety of domains. From shape modelling to surface registration. They are typically computed based on sampled point sets. If the input point set contains holes, the behaviour of the zero-level surface of the distance field is not well defined...... Cholesky factorisation. It is demonstrated that the zero-level surface will act as a membrane after the proposed regularisation. This effectively closes holes in a predictable way. Finally, the performance of the method is tested with a set of synthetic point clouds of increasing complexity....

  2. The hilum overlay sign in a child

    Directory of Open Access Journals (Sweden)

    M J Van Wyk

    2010-12-01

    Full Text Available A 9-month-old girl presented with a 1-month history of coughing. A chest X-ray (CXR was performed, and the antero-posterior view demonstrated the hilum overlay sign. Furthermore, there was absence of the azygo-oesophageal line and bilateral paraspinal lines. The lateral CXR revealed a posterior mediastinal mass. Subsequently, a computed tomogram of the chest confirmed a posterior mediastinal mass, with calcifications and intraspinal extension consistent with neuroblastoma. Histological analysis confirmed this mass as a neuroblastoma.

  3. Dynamic sign structures in visual art and music

    DEFF Research Database (Denmark)

    Zeller, Jörg

    2006-01-01

    Seemingly static meaning carriers in visual art are considered as aspects of holistic dynamical sign structures.......Seemingly static meaning carriers in visual art are considered as aspects of holistic dynamical sign structures....

  4. Single Sign-on Solution for MYSEA Services

    National Research Council Canada - National Science Library

    Bui, Sonia

    2005-01-01

    .... A single sign-on solution for the MYSEA server federation is needed. After user authenticates once to a single MYSEA server, the user s credentials are used to sign on to the other MYSEA servers...

  5. Asset Management of Roadway Signs Through Advanced Technology

    Science.gov (United States)

    2003-06-01

    This research project aims to ease the process of Roadway Sign asset management. The project utilized handheld computer and global positioning system (GPS) technology to capture sign location data along with a timestamp. This data collection effort w...

  6. Know Stroke: Know the Signs, Act in Time Video

    Medline Plus

    Full Text Available ... need to know the signs and act in time. Here are the signs to look for in yourself or those around you: Sudden numbness or weakness in the face, arm, or leg, especially on one side of ...

  7. Electronic traffic signs: The interplay between hybrid and full matrix e-signs

    Energy Technology Data Exchange (ETDEWEB)

    Lucas-Alba, A.; Hernando Mazon, A.; Blanch Mico, A.M.; Gutierrez Perez, D.; Echeverria Villaspi, J.I.; Landa Tejero-Garces, N.

    2016-07-01

    Road signs constitute a complex and growing communication system where different elements (pictograms, shapes, texts, etc.) are combined following different strategies. In this paper we have confronted drivers with a number of messages (congestion or road works, before, between, after location/s) developed as an adaptation of Advance Location Signs (class G, 1c in the 1968 Convention) to electronic displays. We manipulate two main factors a) the reading strategy (top-down vs. bottom-up) and the type of matrix display (hybrid, dissociating pictogram and text, vs. full matrix), in a repeated measures experimental design. The time taken to answer and the response given (correct, incorrect) was measured for each of the 24 message-blocks. Results show that the organization of the elements displayed is a key determinant for driver comprehension. Further thoughts on the need to understand the interplay between the formats adopted by static vs electronic message signs are provided. (Author)

  8. Vital signs of life on distant worlds

    Science.gov (United States)

    2003-01-01

    Ozone in a planet's spectrum may indicate the presence of life hi-res Size hi-res: 673 kb Credits: ESA 2001. Illustration by Medialab Ozone in a planet's spectrum may indicate the presence of life Darwin will most probably look for the spectral signature of ozone, which is unlikely to exist in any quantity for any length of time in the atmosphere of a planet that is not home to life. The background image is a view of Earth seen by the Apollo 17 crew as they traveled toward the Moon. The white patch at the bottom is Antarctica. Unobscured by clouds, Africa and the Arabian Peninsula are visible at the top of this image. The large island off the coast of Africa is the Malagasy Republic. Looking for Earth-like planets hi-res Size hi-res: 2106 Kb Credits: ESA 2002. Illustration by Medialab Looking for Earth-like planets Darwin has six telescopes that analyse the atmospheres of Earth-like planets Darwin's flotilla hi-res Size hi-res: 902 Kb Credits: ESA 2002. Illustration by Medialab Darwin's flotilla Darwin's six telescopes, a central view-combining spacecraft, and communication satellite (shown bottom left) Our radio and television broadcasts have been leaking into space since the 1930s, when the first powerful emitters were constructed. However, you can do things the other way around as well. The Search for Extraterrestrial Intelligence (SETI) has used radio telescopes to listen to the cosmos for similar signals. Nowadays, astrobiologists are pinpointing more subtle signs that all life, not just intelligent life, might radiate into space. They call these telltale signatures 'biomarkers'. When ESA's Darwin mission begins sending back data in the next decade, biomarkers will help indicate whether neighbouring planets are inhabited. If we only used radio waves as markers of life, this would exclude all forms of life that have not yet developed the means to emit radio waves. Life has been around for thousands of millions of years, but human beings have used radio waves

  9. Dictionary of the Slovenian Sign Language on the WWW

    OpenAIRE

    Cempre, Luka; Bešir, Aleksander; Solina, Franc

    2013-01-01

    The article describes technical and user-interface issues of transferring the contents and functionality of the CD-ROM version of the Slovenian sing language dictionary to the web. The dictionary of Slovenian sign language consist of video clips showing the demonstra- tion of signs that deaf people use for communication, text description of the words corresponding to the signs and pictures illustrating the same word/sign. A new technical solution—a video sprite—for concatenating subsections o...

  10. Asympotic efficiency of signed - rank symmetry tests under skew alternatives.

    OpenAIRE

    Alessandra Durio; Yakov Nikitin

    2002-01-01

    The efficiency of some known tests for symmetry such as the sign test, the Wilcoxon signed-rank test or more general linear signed rank tests was studied mainly under the classical alternatives of location. However it is interesting to compare the efficiencies of these tests under asymmetric alternatives like the so-called skew alternative proposed in Azzalini (1985). We find and compare local Bahadur efficiencies of linear signed-rank statistics for skew alternatives and discuss also the con...

  11. Neurological Signs and Symptoms in Fibromyalgia

    Science.gov (United States)

    Watson, Nathaniel F.; Buchwald, Dedra; Goldberg, Jack; Noonan, Carolyn; Ellenbogen, Richard G.

    2009-01-01

    Objective To determine the type and frequency of neurological signs and symptoms in individuals with fibromyalgia (FM). Methods Persons with FM (n=166) and pain-free controls (n=66) underwent systematic neurological examination by a neurologist blinded to disease status. Neurological symptoms present over the preceding 3 months were assessed with a standard questionnaire. We used logistic regression to evaluate the association of neurological symptoms and examination findings with FM status. Within the FM group we examined the correlation between self-reported symptoms and physical examination findings. Results Compared to the control group, age and gender adjusted estimates revealed the FM group had significantly more neurological abnormalities in multiple categories including: cranial nerves IX and X (42% vs. 8%), sensory (65% vs. 25%), motor (33% vs. 3%), and gait (28% vs. 7%). Similarly, the FM group endorsed significantly more neurological symptoms than the control group in 27 of 29 categories with the biggest differences observed for photophobia (70% vs. 6%), poor balance (63% vs. 4%), and weakness (58% vs. 2%) and tingling (54% vs. 4%) in the arms and legs. Poor balance, coordination, tingling, weakness in the arms and legs, and numbness in any part of body correlated with appropriate neurological exam findings in the FM group. Conclusions This blinded, controlled study demonstrated neurological physical examination findings in persons with FM. The FM group had more neurological symptoms than controls, with moderate correlation between symptoms and signs. These findings have implications for the medical work-up of patients with FM. PMID:19714636

  12. AUTHOR KNOWN: ON SIGNED RUNIC INSCRIPTIONS

    Directory of Open Access Journals (Sweden)

    Dominika Skrzypek

    2011-01-01

    Full Text Available Among the medieval, mostly anonymous, works, the runic inscriptions from the Swedish province Uppland are surprisingly frequently signed with the author’s name. The runic masters (Swedish runristare, the first Scandinavian authors known by name, have been the focus of academic interest since Otto von Friesen’s (1913, 1933 and Erik Brate’s (1925 publications, with new findings published more recently (Thompson 1975, Philippa 1977, Quak 1978, Crocker 1982, Åhlén 1997, Källström 1999 i 2007. The present article is a short presentation of the signature types used by the runic masters from Uppland in the 11th and 12th century and of the most important members of the possible runic guild of that time. A typology of signatures concerning the type of work done on the inscriptions is given (different activities conducted by different people suggest that the preparation of an inscription was a collective rather than individual work. At the same, the comparison between the older and the more recent signed inscriptions suggests that the runic alphabet has evolved from a magical to a common tool. Also, three most eminent runic masters, Ulf of Borresta, Öpir and Åsmund Kåresson, and their inscriptions are presented in the text.

  13. Fair and optimistic quantum contract signing

    Science.gov (United States)

    Paunković, N.; Bouda, J.; Mateus, P.

    2011-12-01

    We present a fair and optimistic quantum-contract-signing protocol between two clients that requires no communication with the third trusted party during the exchange phase. We discuss its fairness and show that it is possible to design such a protocol for which the probability of a dishonest client to cheat becomes negligible and scales as N-1/2, where N is the number of messages exchanged between the clients. Our protocol is not based on the exchange of signed messages: Its fairness is based on the laws of quantum mechanics. Thus, it is abuse free, and the clients do not have to generate new keys for each message during the exchange phase. We discuss a real-life scenario when measurement errors and qubit-state corruption due to noisy channels and imperfect quantum memories occur and argue that for a real, good-enough measurement apparatus, transmission channels, and quantum memories, our protocol would still be fair. Apart from stable quantum memories, the other segments of our protocol could be implemented by today's technology, as they require in essence the same type of apparatus as the one needed for the Bennett-Brassard 1984 (BB84) cryptographic protocol. Finally, we briefly discuss two alternative versions of the protocol, one that uses only two states [based on the Bennett 1992 (B92) protocol] and the other that uses entangled pairs, and show that it is possible to generalize our protocol to an arbitrary number of clients.

  14. Fair and optimistic quantum contract signing

    Energy Technology Data Exchange (ETDEWEB)

    Paunkovic, N.; Mateus, P. [SQIG - Instituto de Telecomunicacoes, IST, TULisbon, Avenida Rovisco Pais, P-1049-001 Lisbon (Portugal); Bouda, J. [Faculty of Informatics, Masaryk University, Botanicka 68a, CZ-60200 Brno (Czech Republic)

    2011-12-15

    We present a fair and optimistic quantum-contract-signing protocol between two clients that requires no communication with the third trusted party during the exchange phase. We discuss its fairness and show that it is possible to design such a protocol for which the probability of a dishonest client to cheat becomes negligible and scales as N{sup -1/2}, where N is the number of messages exchanged between the clients. Our protocol is not based on the exchange of signed messages: Its fairness is based on the laws of quantum mechanics. Thus, it is abuse free, and the clients do not have to generate new keys for each message during the exchange phase. We discuss a real-life scenario when measurement errors and qubit-state corruption due to noisy channels and imperfect quantum memories occur and argue that for a real, good-enough measurement apparatus, transmission channels, and quantum memories, our protocol would still be fair. Apart from stable quantum memories, the other segments of our protocol could be implemented by today's technology, as they require in essence the same type of apparatus as the one needed for the Bennett-Brassard 1984 (BB84) cryptographic protocol. Finally, we briefly discuss two alternative versions of the protocol, one that uses only two states [based on the Bennett 1992 (B92) protocol] and the other that uses entangled pairs, and show that it is possible to generalize our protocol to an arbitrary number of clients.

  15. Assistance System for Traffic Signs Inventory

    Directory of Open Access Journals (Sweden)

    Karel Zídek

    2015-01-01

    Full Text Available We can see arising trend in the automotive industry in last years – autonomous cars that are driven just by on-board computers. The traffic signs tracking system must deal with real conditions with data that are frequently obtained in poor light conditions, fog, heavy rain or are otherwise disturbed. Completely same problem is solved by mapping companies that are producing geospatial data for different information systems, navigations, etc. They are frequently using cars equipped with a wide range of measuring instruments including panoramic cameras. These measurements are frequently done during early morning hours when the traffic conditions are acceptable. However, in this time, the sun position is usually not optimal for the photography. Most of the traffic signs and other street objects are heavily underexposed. Hence, it is difficult to find an automatic approach that can identify them reliably. In this article, we focus on methods designed to deal with the described conditions. An overview of the state-of-the-art methods is outlined. Further, where it is possible, we outline an implementation of the described methods using well-known Open Computer Vision library. Finally, emphasis is placed on the methods that can deal with low light conditions, fog or other situations that complicate the detection process.

  16. Radiologic signs of detrusor instability in children

    International Nuclear Information System (INIS)

    Hidalgo Teran, D.G.; Podesta, M.; Mendel, R.

    2004-01-01

    Purpose: To revalue radiologic signs of detrusor instability in children. Material and Methods: Retrospective analysis of videourodynamic studies performed in 85 children consulting for urinary incontinence and/or infection. Patients were free from neuropathic diseases, alterations of the urinary tract, previous surgery or anticholinergic treatment. Images of the bladder coinciding to the peaks of unstable detrusor contractions in patients with unstable bladders, and those at the end of filling in stable bladders were analyzed. Results: Bladder outlets were open in 38 patients and close in 47. Detrusor instability was found in 97 % of those with an open bladder outlet and in 36 % when close. Bladder outlets were open in all cases with contractions stronger than 60 cm.water. All 'spinning-top' urethras were associated to contractions stronger than 70 cm.water. Most false negatives (close bladder outlet in unstable bladders) corresponded to contractions lower than 30 cm.water. Different shapes of the bladder were found irrespective of detrusor instability. Conclusions: 1) An open bladder outlet observed during bladder filling is a reliable sign of significant detrusor instability in children without neuropathy; 2) It is highly specific of instability; 3) Most false negatives coincide with low amplitude contractions; 4) 'Spinning-top' images indicate strong contractions. (author)

  17. Fair and optimistic quantum contract signing

    International Nuclear Information System (INIS)

    Paunkovic, N.; Mateus, P.; Bouda, J.

    2011-01-01

    We present a fair and optimistic quantum-contract-signing protocol between two clients that requires no communication with the third trusted party during the exchange phase. We discuss its fairness and show that it is possible to design such a protocol for which the probability of a dishonest client to cheat becomes negligible and scales as N -1/2 , where N is the number of messages exchanged between the clients. Our protocol is not based on the exchange of signed messages: Its fairness is based on the laws of quantum mechanics. Thus, it is abuse free, and the clients do not have to generate new keys for each message during the exchange phase. We discuss a real-life scenario when measurement errors and qubit-state corruption due to noisy channels and imperfect quantum memories occur and argue that for a real, good-enough measurement apparatus, transmission channels, and quantum memories, our protocol would still be fair. Apart from stable quantum memories, the other segments of our protocol could be implemented by today's technology, as they require in essence the same type of apparatus as the one needed for the Bennett-Brassard 1984 (BB84) cryptographic protocol. Finally, we briefly discuss two alternative versions of the protocol, one that uses only two states [based on the Bennett 1992 (B92) protocol] and the other that uses entangled pairs, and show that it is possible to generalize our protocol to an arbitrary number of clients.

  18. Roentgen signs in diagnostic imaging. Vol. 2

    International Nuclear Information System (INIS)

    Meschan, I.

    1988-01-01

    The introductory chapter presents terminology and definitions of current use in the field of roentgen pathology and also gives a short list of terms relating to the application of the novel imaging methods. The first chapter explains the fundamentals of radiological evaluation of the bone joints and skeleton, and chapters two and three discuss fractures and luxations of the extremities and the available treatment methods. The fourth chapter deals with congenital and hereditary bone lesions and the relevant roentgen signs such as reduced contrast or modifications in size or shape. The chapters five and six deal with specific bone lesions of a particular bone or skeletal area, or a particular extremity, also characterised by reduced contrast. Other bone lesions showing enhanced density, expansive processes or other massive change are discussed in chapter seven, and roen tgen signs of the bone joints in chapter eight. The last chapter deals with computed tomography for diagnostic evaluation of the appendicular skeleton. (MG) With 1803 figs., 29 tabs [de

  19. Edges and vertices in a unique signed circle in a signed graph

    Directory of Open Access Journals (Sweden)

    Richard Behr

    2017-12-01

    Full Text Available We examine the conditions under which a signed graph contains an edge or a vertex that is contained in a unique negative circle or a unique positive circle. For an edge in a unique signed circle, the positive and negative case require the same structure on the underlying graph, but the requirements on the signature are different. We characterize the structure of the underlying graph necessary to support such an edge in terms of bridges of a circle. We then use the results from the edge version of the problem to help solve the vertex version.

  20. A preliminary look at negative constructions in South African Sign ...

    African Journals Online (AJOL)

    How negation is expressed by means of manual and/or non-manual markers has been described in a wide range of sign languages. This work has suggested a split between sign languages requiring a manual negative element in negative clauses (manual dominant sign languages) and those where a non-manual marker ...

  1. A Stronger Reason for the Right to Sign Languages

    Science.gov (United States)

    Trovato, Sara

    2013-01-01

    Is the right to sign language only the right to a minority language? Holding a capability (not a disability) approach, and building on the psycholinguistic literature on sign language acquisition, I make the point that this right is of a stronger nature, since only sign languages can guarantee that each deaf child will properly develop the…

  2. The Mechanics of Fingerspelling: Analyzing Ethiopian Sign Language

    Science.gov (United States)

    Duarte, Kyle

    2010-01-01

    Ethiopian Sign Language utilizes a fingerspelling system that represents Amharic orthography. Just as each character of the Amharic abugida encodes a consonant-vowel sound pair, each sign in the Ethiopian Sign Language fingerspelling system uses handshape to encode a base consonant, as well as a combination of timing, placement, and orientation to…

  3. New Perspectives on the History of American Sign Language

    Science.gov (United States)

    Shaw, Emily; Delaporte, Yves

    2011-01-01

    Examinations of the etymology of American Sign Language have typically involved superficial analyses of signs as they exist over a short period of time. While it is widely known that ASL is related to French Sign Language, there has yet to be a comprehensive study of this historic relationship between their lexicons. This article presents…

  4. 32 CFR 150.6 - Signing of papers.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 1 2010-07-01 2010-07-01 false Signing of papers. 150.6 Section 150.6 National... JUSTICE COURTS OF CRIMINAL APPEALS RULES OF PRACTICE AND PROCEDURE § 150.6 Signing of papers. All formal papers shall be signed and shall show, typewritten or printed, the signer's name, address, military grade...

  5. 37 CFR 2.119 - Service and signing of papers.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Service and signing of papers... Service and signing of papers. (a) Every paper filed in the United States Patent and Trademark Office in... service must be made before the paper will be considered by the Office. A statement signed by the attorney...

  6. 26 CFR 301.6063-1 - Signing of partnership returns.

    Science.gov (United States)

    2010-04-01

    ... 26 Internal Revenue 18 2010-04-01 2010-04-01 false Signing of partnership returns. 301.6063-1 Section 301.6063-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED....6063-1 Signing of partnership returns. For provisions relating to the signing of returns of partnership...

  7. Study on road sign recognition in LabVIEW

    Science.gov (United States)

    Panoiu, M.; Rat, C. L.; Panoiu, C.

    2016-02-01

    Road and traffic sign identification is a field of study that can be used to aid the development of in-car advisory systems. It uses computer vision and artificial intelligence to extract the road signs from outdoor images acquired by a camera in uncontrolled lighting conditions where they may be occluded by other objects, or may suffer from problems such as color fading, disorientation, variations in shape and size, etc. An automatic means of identifying traffic signs, in these conditions, can make a significant contribution to develop an Intelligent Transport Systems (ITS) that continuously monitors the driver, the vehicle, and the road. Road and traffic signs are characterized by a number of features which make them recognizable from the environment. Road signs are located in standard positions and have standard shapes, standard colors, and known pictograms. These characteristics make them suitable for image identification. Traffic sign identification covers two problems: traffic sign detection and traffic sign recognition. Traffic sign detection is meant for the accurate localization of traffic signs in the image space, while traffic sign recognition handles the labeling of such detections into specific traffic sign types or subcategories [1].

  8. 50 CFR 85.43 - Signs and symbols.

    Science.gov (United States)

    2010-10-01

    ... sign. (i) You may place the message “P PUMP OUT”, “P PUMPOUT STATION”, “P PORTABLE TOILET DUMP STATION... information signs at pumpout and portable toilet dump stations. Such information should indicate fees... sign at the entrance to a marina advertising the presence of a pumpout and/or portable toilet dump...

  9. Language Policy and Planning: The Case of Italian Sign Language

    Science.gov (United States)

    Geraci, Carlo

    2012-01-01

    Italian Sign Language (LIS) is the name of the language used by the Italian Deaf community. The acronym LIS derives from Lingua italiana dei segni ("Italian language of signs"), although nowadays Italians refers to LIS as Lingua dei segni italiana, reflecting the more appropriate phrasing "Italian sign language." Historically,…

  10. 26 CFR 301.6062-1 - Signing of corporation returns.

    Science.gov (United States)

    2010-04-01

    ... 26 Internal Revenue 18 2010-04-01 2010-04-01 false Signing of corporation returns. 301.6062-1 Section 301.6062-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED....6062-1 Signing of corporation returns. For provisions relating to the signing of corporation income tax...

  11. Adapting tests of sign language assessment for other sign languages--a review of linguistic, cultural, and psychometric problems.

    Science.gov (United States)

    Haug, Tobias; Mann, Wolfgang

    2008-01-01

    Given the current lack of appropriate assessment tools for measuring deaf children's sign language skills, many test developers have used existing tests of other sign languages as templates to measure the sign language used by deaf people in their country. This article discusses factors that may influence the adaptation of assessment tests from one natural sign language to another. Two tests which have been adapted for several other sign languages are focused upon: the Test for American Sign Language and the British Sign Language Receptive Skills Test. A brief description is given of each test as well as insights from ongoing adaptations of these tests for other sign languages. The problems reported in these adaptations were found to be grounded in linguistic and cultural differences, which need to be considered for future test adaptations. Other reported shortcomings of test adaptation are related to the question of how well psychometric measures transfer from one instrument to another.

  12. Link Label Prediction in Signed Citation Network

    KAUST Repository

    Akujuobi, Uchenna

    2016-04-12

    Link label prediction is the problem of predicting the missing labels or signs of all the unlabeled edges in a network. For signed networks, these labels can either be positive or negative. In recent years, different algorithms have been proposed such as using regression, trust propagation and matrix factorization. These approaches have tried to solve the problem of link label prediction by using ideas from social theories, where most of them predict a single missing label given that labels of other edges are known. However, in most real-world social graphs, the number of labeled edges is usually less than that of unlabeled edges. Therefore, predicting a single edge label at a time would require multiple runs and is more computationally demanding. In this thesis, we look at link label prediction problem on a signed citation network with missing edge labels. Our citation network consists of papers from three major machine learning and data mining conferences together with their references, and edges showing the relationship between them. An edge in our network is labeled either positive (dataset relevant) if the reference is based on the dataset used in the paper or negative otherwise. We present three approaches to predict the missing labels. The first approach converts the label prediction problem into a standard classification problem. We then, generate a set of features for each edge and then adopt Support Vector Machines in solving the classification problem. For the second approach, we formalize the graph such that the edges are represented as nodes with links showing similarities between them. We then adopt a label propagation method to propagate the labels on known nodes to those with unknown labels. In the third approach, we adopt a PageRank approach where we rank the nodes according to the number of incoming positive and negative edges, after which we set a threshold. Based on the ranks, we can infer an edge would be positive if it goes a node above the

  13. Signs over time: Statistical and visual analysis of a longitudinal signed network

    NARCIS (Netherlands)

    de Nooy, W.

    2008-01-01

    This paper presents the design and results of a statistical and visual analysis of a dynamic signed network. In addition to prevalent approaches to longitudinal networks, which analyze series of cross-sectional data, this paper focuses on network data measured in continuous time in order to explain

  14. Branched oligosaccharide structures on HBV prevent interaction with both DC-SIGN and L-SIGN

    NARCIS (Netherlands)

    Op den Brouw, M. L.; de Jong, M. A. W. P.; Ludwig, I. S.; van der Molen, R. G.; Janssen, H. L. A.; Geijtenbeek, T. B. H.; Woltman, A. M.

    2008-01-01

    Hepatitis B virus (HBV) is a DNA virus that infects the liver as primary target. Currently, a high affinity receptor for HBV is still unknown. The dendritic cell specific C-type lectin DC-SIGN is involved in pathogen recognition through mannose and fucose containing carbohydrates leading to the

  15. Spoken Language Activation Alters Subsequent Sign Language Activation in L2 Learners of American Sign Language

    Science.gov (United States)

    Williams, Joshua T.; Newman, Sharlene D.

    2017-01-01

    A large body of literature has characterized unimodal monolingual and bilingual lexicons and how neighborhood density affects lexical access; however there have been relatively fewer studies that generalize these findings to bimodal (M2) second language (L2) learners of sign languages. The goal of the current study was to investigate parallel…

  16. Double line sign: a helpful sonographic sign to detect occult fractures of the proximal humerus

    International Nuclear Information System (INIS)

    Rutten, Matthieu J.C.M.; Jager, Gerrit J.; Waal malefijt, Maarten C. de; Blickman, Johan G.

    2007-01-01

    The aim of this study was to describe a new sonographic sign of bone fracture and to determine if it can be helpful in decreasing the number of missed fractures of the proximal humerus. Ultrasound (US) of the shoulder was performed in 57 consecutive patients with shoulder pain and/or disability following trauma. All cases were prospectively reviewed for the presence of a humeral fracture. Sonographic signs of fractures, with special emphasis on what was termed the 'double line sign' (DLS), were assessed. Plain radiography was considered the standard of reference and in equivocal cases magnetic resonance imaging (MRI). Twenty-eight patients had a tuberosity complex fracture, which were all detected at US examination. Sonographic features of a fracture were periosteal elevation, corticol bone discontinuity, step-off deformity or a combination of these findings. This study showed that in 26 (93%) patients an additional sonographic feature, a DLS, could be demonstrated. The DLS is a helpful and probably reliable sonographic sign to indicate a humeral fracture. High-spatial-resolution US substantially increases the detection of fractures of the proximal humerus and should be considered as an alternative diagnostic tool prior to computed tomography (CT), MRI and arthroscopy in patients with persisting shoulder pain and/or disability following trauma. (orig.)

  17. Double line sign: a helpful sonographic sign to detect occult fractures of the proximal humerus

    Energy Technology Data Exchange (ETDEWEB)

    Rutten, Matthieu J.C.M.; Jager, Gerrit J. [Jeroen Bosch Hospital, Department of Radiology, Hertogenbosch (Netherlands); Waal malefijt, Maarten C. de [University Medical Center Nijmegen, Department of Orthopedic Surgery, Nijmegen (Netherlands); Blickman, Johan G. [University Medical Center Nijmegen, Department of Radiology, Nijmegen (Netherlands)

    2007-03-15

    The aim of this study was to describe a new sonographic sign of bone fracture and to determine if it can be helpful in decreasing the number of missed fractures of the proximal humerus. Ultrasound (US) of the shoulder was performed in 57 consecutive patients with shoulder pain and/or disability following trauma. All cases were prospectively reviewed for the presence of a humeral fracture. Sonographic signs of fractures, with special emphasis on what was termed the 'double line sign' (DLS), were assessed. Plain radiography was considered the standard of reference and in equivocal cases magnetic resonance imaging (MRI). Twenty-eight patients had a tuberosity complex fracture, which were all detected at US examination. Sonographic features of a fracture were periosteal elevation, corticol bone discontinuity, step-off deformity or a combination of these findings. This study showed that in 26 (93%) patients an additional sonographic feature, a DLS, could be demonstrated. The DLS is a helpful and probably reliable sonographic sign to indicate a humeral fracture. High-spatial-resolution US substantially increases the detection of fractures of the proximal humerus and should be considered as an alternative diagnostic tool prior to computed tomography (CT), MRI and arthroscopy in patients with persisting shoulder pain and/or disability following trauma. (orig.)

  18. Maintenance of signs and sign supports : a guide for local highway and street maintenance personnel.

    Science.gov (United States)

    2010-01-01

    Highway signs are the means by which the road agency communicates the rules, warnings, guidance and other highway information that drivers need to navigate their roads and streets. This guide, which is an update to the same titled guide published in ...

  19. MRI in movement disorder patients: 'hot cross bun' sign

    International Nuclear Information System (INIS)

    Koh, Seong Beom; Kim, Byung Jo; Park, Min Kyu; Park, Kun Woo; Lee, Nam Joon; Lee, Dae Hie

    2003-01-01

    Clinically, multiple system atrophy is difficult to differentiate from other basal ganglia disorders such as idiopathic Parkinson's disease or other types of cerebellar ataxia. The 'hot cross bun' sign is a radiological sign which, it has been claimed, is highly specific for multiple system atrophy, and we describe four cases in which this sign occurred. In one patient, multiple system atrophy was clinically diagnosed, but in the other three, the respective clinical diagnosis was spinocerebellar ataxia type 1, type 2 (genetically), and old cerebellar hemorrhage. We therefore suggest that the hot cross bun sign reflects degeneration of transverse pontocerebellar fibers and is not a pathognomic sign of multiple system atrophy

  20. Study on Positive and Negative Signs in Chronic Schizophrenic Women

    Directory of Open Access Journals (Sweden)

    Sahel Hemmati

    2002-10-01

    Full Text Available Objective: Schizophrenia has different clinical manifestations, although, it is one disorder patients divided to two groups type 1 and type 2. type 1 who have positive and type 2 who have negative signs. Materials & Methods: They have chronic schizophrenia and treated at least with one antipsychotic drug. With checklist the signs were controlled. Results: In these chronic patients, hallucinations (positive sign are seen with almost all of negative signs. In the other hand, (1 Flat affect (2 A logia & volition (3 Social inattentiveness (4 Inability to feel intimacy are seen more than another signs. Conclusion: For these above  patients new antipsychotic must be examined.

  1. Signs of tops from highly mixed stops

    Energy Technology Data Exchange (ETDEWEB)

    Backović, Mihailo [Center for Cosmology, Particle Physics and Phenomenology - CP3,Universite Catholique de Louvain, Louvain-la-neuve (Belgium); Mariotti, Alberto [Theoretische Natuurkunde and IIHE/ELEM, Vrije Universiteit Brussel,and International Solvay Institutes, Pleinlaan 2, B-1050 Brussels (Belgium); Spannowsky, Michael [Institute for Particle Physics Phenomenology, Department of Physics,Durham University, Durham DH1 3LE (United Kingdom)

    2015-06-17

    Supersymmetric extensions of the Standard Model with highly mixed squark flavours beyond minimal flavour violation provide interesting scenarios of new physics, which have so far received limited attention. We propose a calculable realization of such scenarios in models of gauge mediation augmented with an extra interaction between the messengers and the up type squark. We compute the supersymmetric spectrum and analyze the flavour physics constraints on such models. In a simplified model approach, we show that scenarios with maximal squark flavour mixing result in interesting phenomenological signatures at the LHC. We show that the model can be probed up to masses of m{sub ũ}≲950 GeV in the single-top event topology at LHC14 with as little as 300 fb{sup −1}. The most distinctive signature of highly mixed scenarios, the same sign positive charge di-top, can be also probed to comparable squark masses at high luminosity LHC14.

  2. Signs of climate change in Nordic nature

    DEFF Research Database (Denmark)

    Mikkelsen, Maria; Jensen, Trine Susanne; Normander, Bo

    on population size and range of the polar bear, for example, are scarce, whereas data on the pollen season are extensive. Each indicator is evaluated using a number of quality criteria, including sensitivity to climate change, policy relevance and methodology. Although the indicator framework presented here has......Not only is the Earth's climate changing, our natural world is also being affected by the impact of rising temperatures and changes in climatic conditions. In order to track climate-related changes in Nordic ecosystems, we have identified a number of climate change sensitive indicators. We present...... a catalogue of 14 indicator-based signs that demonstrate the impact of climate change on terrestrial, marine and freshwater ecosystems in the different bio-geographical zones of the Nordic region. The indicators have been identified using a systematic and quality, criteria based approach to discern and select...

  3. Bronchiolitis: presenting signs and etiologic factors

    International Nuclear Information System (INIS)

    Hernandez, D.; Pallisa, E.; Sebastia, M. C.; Quiroga, S.; Alvarez-Castells, A.; Caceres, J.

    1999-01-01

    Bronchiolitis is a disease of the small airways that can effect both the terminal and respiratory bronchioles and the alveoli. The diagnosis is based on histological findings and it is generally divided into two types: proliferative and constrictive. In clinical practice, there are a number of entities, such as infections, connective tissue diseases and lug transplantation, that can results in involvement of the small airways. In high-resolution computed tomography (HRCT), signs of bronchiolitis include centrilobular nodules, bronchiolectasis, mosaic perfusion, parenchymal consolidations and air-trapping. The findings are nonspecific, although the predominant features change depending on the underlying disease. Familiarity with the radiological sings of bronchilitis in HRCT studies avoids incorrect diagnoses and broadens the available knowledge of the morphology of lung pathology. (Author) 16 refs

  4. Signed reward prediction errors drive declarative learning.

    Directory of Open Access Journals (Sweden)

    Esther De Loof

    Full Text Available Reward prediction errors (RPEs are thought to drive learning. This has been established in procedural learning (e.g., classical and operant conditioning. However, empirical evidence on whether RPEs drive declarative learning-a quintessentially human form of learning-remains surprisingly absent. We therefore coupled RPEs to the acquisition of Dutch-Swahili word pairs in a declarative learning paradigm. Signed RPEs (SRPEs; "better-than-expected" signals during declarative learning improved recognition in a follow-up test, with increasingly positive RPEs leading to better recognition. In addition, classic declarative memory mechanisms such as time-on-task failed to explain recognition performance. The beneficial effect of SRPEs on recognition was subsequently affirmed in a replication study with visual stimuli.

  5. Signed reward prediction errors drive declarative learning.

    Science.gov (United States)

    De Loof, Esther; Ergo, Kate; Naert, Lien; Janssens, Clio; Talsma, Durk; Van Opstal, Filip; Verguts, Tom

    2018-01-01

    Reward prediction errors (RPEs) are thought to drive learning. This has been established in procedural learning (e.g., classical and operant conditioning). However, empirical evidence on whether RPEs drive declarative learning-a quintessentially human form of learning-remains surprisingly absent. We therefore coupled RPEs to the acquisition of Dutch-Swahili word pairs in a declarative learning paradigm. Signed RPEs (SRPEs; "better-than-expected" signals) during declarative learning improved recognition in a follow-up test, with increasingly positive RPEs leading to better recognition. In addition, classic declarative memory mechanisms such as time-on-task failed to explain recognition performance. The beneficial effect of SRPEs on recognition was subsequently affirmed in a replication study with visual stimuli.

  6. Parallel optoelectronic trinary signed-digit division

    Science.gov (United States)

    Alam, Mohammad S.

    1999-03-01

    The trinary signed-digit (TSD) number system has been found to be very useful for parallel addition and subtraction of any arbitrary length operands in constant time. Using the TSD addition and multiplication modules as the basic building blocks, we develop an efficient algorithm for performing parallel TSD division in constant time. The proposed division technique uses one TSD subtraction and two TSD multiplication steps. An optoelectronic correlator based architecture is suggested for implementation of the proposed TSD division algorithm, which fully exploits the parallelism and high processing speed of optics. An efficient spatial encoding scheme is used to ensure better utilization of space bandwidth product of the spatial light modulators used in the optoelectronic implementation.

  7. The signs of life in architecture.

    Science.gov (United States)

    Gruber, Petra

    2008-06-01

    Engineers, designers and architects often look to nature for inspiration. The research on 'natural constructions' is aiming at innovation and the improvement of architectural quality. The introduction of life sciences terminology in the context of architecture delivers new perspectives towards innovation in architecture and design. The investigation is focused on the analogies between nature and architecture. Apart from other principles that are found in living nature, an interpretation of the so-called 'signs of life', which characterize living systems, in architecture is presented. Selected architectural projects that have applied specific characteristics of life, whether on purpose or not, will show the state of development in this field and open up future challenges. The survey will include famous built architecture as well as students' design programs, which were carried out under supervision of the author at the Department of Design and Building Construction at the Vienna University of Technology.

  8. Signed distance function implicit geologic modeling

    Directory of Open Access Journals (Sweden)

    Roberto Mentzingen Rolo

    Full Text Available Abstract Prior to every geostatistical estimation or simulation study there is a need for delimiting the geologic domains of the deposit, which is traditionally done manually by a geomodeler in a laborious, time consuming and subjective process. For this reason, novel techniques referred to as implicit modelling have appeared. These techniques provide algorithms that replace the manual digitization process of the traditional methods by some form of automatic procedure. This paper covers a few well established implicit methods currently available with special attention to the signed distance function methodology. A case study based on a real dataset was performed and its applicability discussed. Although it did not replace an experienced geomodeler, the method proved to be capable in creating semi-automatic geological models from the sampling data, especially in the early stages of exploration.

  9. Adult sail sign: radiographic and computed tomographic features.

    Science.gov (United States)

    Lee, Yu-Jin; Han, Daehee; Koh, Young Hwan; Zo, Joo Hee; Kim, Sang-Hyun; Kim, Deog Kyeom; Lee, Jeong Sang; Moon, Hyeon Jong; Kim, Jong Seung; Chun, Eun Ju; Youn, Byung Jae; Lee, Chang Hyun; Kim, Sam Soo

    2008-02-01

    The sail sign is a well-known radiographic feature of the pediatric chest. This sign can be observed in an adult population as well, but for a different reason. To investigate the sail sign appearing in adult chest radiography. Based on two anecdotal adult cases in which frontal chest radiographs showed the sail sign, we prospectively screened radiographs of 10,238 patients to determine the incidence of the sail sign found in adults in their 40s or older. The cause of the sail sign was assessed using computed tomography (CT). The sail sign was revealed in 10 (seven males, three females; median age 60.6 years) of 10,238 patients. Of these 10 patients with a sail sign on frontal radiographs, eight underwent CT. The frontal radiographs of these 10 patients showed a concave superior margin toward the lung in nine patients, a concave inferior margin in five, and a double-lined inferior margin in three. Lateral radiographs disclosed a focal opacity over the minor fissure in five of six patients, which was either fuzzy (n = 4) or sharp (n = 1) in its upper margin, and was sometimes double lined in the inferior margin (n = 3). CT revealed the anterior mediastinal fat to be the cause of the radiographic sail sign, which stretched laterally from the mediastinum to insinuate into the minor fissure. The incidence of sail sign on adult chest radiographs is about 0.1%. The sign is specific enough to eliminate the need for more sophisticated imaging.

  10. Neurologic signs and symptoms in fibromyalgia.

    Science.gov (United States)

    Watson, Nathaniel F; Buchwald, Dedra; Goldberg, Jack; Noonan, Carolyn; Ellenbogen, Richard G

    2009-09-01

    To determine the type and frequency of neurologic signs and symptoms in individuals with fibromyalgia (FM). Persons with FM (n = 166) and pain-free controls (n = 66) underwent systematic neurologic examination by a neurologist blinded to disease status. Neurologic symptoms lasting at least 3 months were assessed with a standard questionnaire. We used logistic regression to evaluate the association of neurologic symptoms and examination findings with FM status. Within the FM group we examined the correlation between self-reported symptoms and physical examination findings. Age- and sex-adjusted estimates revealed that compared with the control group, the FM group had significantly more neurologic abnormalities in multiple categories, including greater dysfunction in cranial nerves IX and X (42% versus 8%) and more sensory (65% versus 25%), motor (33% versus 3%), and gait (28% versus 7%) abnormalities. Similarly, the FM group had significantly more neurologic symptoms than the control group in 27 of 29 categories, with the greatest differences observed for photophobia (70% versus 6%), poor balance (63% versus 4%), and weakness (58% versus 2%) and tingling (54% versus 4%) in the arms or legs. Poor balance or coordination, tingling or weakness in the arms or legs, and numbness in any part of the body correlated with appropriate neurologic examination findings in the FM group. This blinded, controlled study demonstrated neurologic physical examination findings in persons with FM. The FM group had more neurologic symptoms than did the controls, with moderate correlation between symptoms and signs. These findings have implications for the medical evaluation of patients with FM.

  11. [Rigor mortis -- a definite sign of death?].

    Science.gov (United States)

    Heller, A R; Müller, M P; Frank, M D; Dressler, J

    2005-04-01

    In the past years an ongoing controversial debate exists in Germany, regarding quality of the coroner's inquest and declaration of death by physicians. We report the case of a 90-year old female, who was found after an unknown time following a suicide attempt with benzodiazepine. The examination of the patient showed livores (mortis?) on the left forearm and left lower leg. Moreover, rigor (mortis?) of the left arm was apparent which prevented arm flexion and extension. The hypothermic patient with insufficient respiration was intubated and mechanically ventilated. Chest compressions were not performed, because central pulses were (hardly) palpable and a sinus bradycardia 45/min (AV-block 2 degrees and sole premature ventricular complexes) was present. After placement of an intravenous line (17 G, external jugular vein) the hemodynamic situation was stabilized with intermittent boli of epinephrine and with sodium bicarbonate. With improved circulation livores and rigor disappeared. In the present case a minimal central circulation was noted, which could be stabilized, despite the presence of certain signs of death ( livores and rigor mortis). Considering the finding of an abrogated peripheral perfusion (livores), we postulate a centripetal collapse of glycogen and ATP supply in the patients left arm (rigor), which was restored after resuscitation and reperfusion. Thus, it appears that livores and rigor are not sensitive enough to exclude a vita minima, in particular in hypothermic patients with intoxications. Consequently a careful ABC-check should be performed even in the presence of apparently certain signs of death, to avoid underdiagnosing a vita minima. Additional ECG- monitoring is required to reduce the rate of false positive declarations of death. To what extent basic life support by paramedics should commence when rigor and livores are present until physician DNR order, deserves further discussion.

  12. Constraints on Negative Prefixation in Polish Sign Language.

    Science.gov (United States)

    Tomaszewski, Piotr

    2015-01-01

    The aim of this article is to describe a negative prefix, NEG-, in Polish Sign Language (PJM) which appears to be indigenous to the language. This is of interest given the relative rarity of prefixes in sign languages. Prefixed PJM signs were analyzed on the basis of both a corpus of texts signed by 15 deaf PJM users who are either native or near-native signers, and material including a specified range of prefixed signs as demonstrated by native signers in dictionary form (i.e. signs produced in isolation, not as part of phrases or sentences). In order to define the morphological rules behind prefixation on both the phonological and morphological levels, native PJM users were consulted for their expertise. The research results can enrich models for describing processes of grammaticalization in the context of the visual-gestural modality that forms the basis for sign language structure.

  13. ASL-LEX: A lexical database of American Sign Language.

    Science.gov (United States)

    Caselli, Naomi K; Sehyr, Zed Sevcikova; Cohen-Goldberg, Ariel M; Emmorey, Karen

    2017-04-01

    ASL-LEX is a lexical database that catalogues information about nearly 1,000 signs in American Sign Language (ASL). It includes the following information: subjective frequency ratings from 25-31 deaf signers, iconicity ratings from 21-37 hearing non-signers, videoclip duration, sign length (onset and offset), grammatical class, and whether the sign is initialized, a fingerspelled loan sign, or a compound. Information about English translations is available for a subset of signs (e.g., alternate translations, translation consistency). In addition, phonological properties (sign type, selected fingers, flexion, major and minor location, and movement) were coded and used to generate sub-lexical frequency and neighborhood density estimates. ASL-LEX is intended for use by researchers, educators, and students who are interested in the properties of the ASL lexicon. An interactive website where the database can be browsed and downloaded is available at http://asl-lex.org .

  14. An Efficient Framework for Road Sign Detection and Recognition

    Directory of Open Access Journals (Sweden)

    Duanling Li

    2014-02-01

    Full Text Available Road sign detection and recognition is a significant and challenging issue not only for assisting drivers but also navigating mobile robots. In this paper, we propose a novel and fast approach for the automatic detection and recognition of road signs. First, we use Hue Saturation Intensity (HSI color space to segment the road signs color. And then we locate the road signs based on the geometry symmetry, as almost all the shapes of road sign shapes are symmetrical such circle, rectangle, triangle and octagon. The proposed shape feature is further applied to classify the shape initially. Finally, the road signs are exactly recognized by support vector machine (SVM classifiers. We test our proposed method on real road images and the experimental results show that it can detect and recognize road signs rapidly and accurately.

  15. Segmentation of British Sign Language (BSL): mind the gap!

    Science.gov (United States)

    Orfanidou, Eleni; McQueen, James M; Adam, Robert; Morgan, Gary

    2015-01-01

    This study asks how users of British Sign Language (BSL) recognize individual signs in connected sign sequences. We examined whether this is achieved through modality-specific or modality-general segmentation procedures. A modality-specific feature of signed languages is that, during continuous signing, there are salient transitions between sign locations. We used the sign-spotting task to ask if and how BSL signers use these transitions in segmentation. A total of 96 real BSL signs were preceded by nonsense signs which were produced in either the target location or another location (with a small or large transition). Half of the transitions were within the same major body area (e.g., head) and half were across body areas (e.g., chest to hand). Deaf adult BSL users (a group of natives and early learners, and a group of late learners) spotted target signs best when there was a minimal transition and worst when there was a large transition. When location changes were present, both groups performed better when transitions were to a different body area than when they were within the same area. These findings suggest that transitions do not provide explicit sign-boundary cues in a modality-specific fashion. Instead, we argue that smaller transitions help recognition in a modality-general way by limiting lexical search to signs within location neighbourhoods, and that transitions across body areas also aid segmentation in a modality-general way, by providing a phonotactic cue to a sign boundary. We propose that sign segmentation is based on modality-general procedures which are core language-processing mechanisms.

  16. Clinical signs suggestive of pharyngeal dysphagia in preschool children with cerebral palsy.

    Science.gov (United States)

    Benfer, Katherine A; Weir, Kelly A; Bell, Kristie L; Ware, Robert S; Davies, Peter S W; Boyd, Roslyn N

    2015-03-01

    This study aimed to determine the discriminative validity, reproducibility, and prevalence of clinical signs suggestive of pharyngeal dysphagia according to gross motor function in children with cerebral palsy (CP). It was a cross-sectional population-based study of 130 children diagnosed with CP at 18-36 months (mean=27.4, 81 males) and 40 children with typical development (TD, mean=26.2, 18 males). Sixteen signs suggestive of pharyngeal phase impairment were directly observed in a videoed mealtime by a speech pathologist, and reported by parents on a questionnaire. Gross motor function was classified using the Gross Motor Function Classification System. The study found that 67.7% of children had clinical signs, and this increased with poorer gross motor function (OR=1.7, pDysphagia cut-points were modified to exclude a single cough on fluids, with a modified prevalence estimate proposed as 50.8%. Clinical signs suggestive of pharyngeal dysphagia are common in children with CP, even those with ambulatory CP. Parent-report on 16 specific signs remains a feasible screening method. While coughing was consistently identified by clinicians, it may not reflect children's regular performance, and was not sufficiently discriminative in children aged 18-36 months. Crown Copyright © 2014. Published by Elsevier Ltd. All rights reserved.

  17. Cross-Modal Recruitment of Auditory and Orofacial Areas During Sign Language in a Deaf Subject.

    Science.gov (United States)

    Martino, Juan; Velasquez, Carlos; Vázquez-Bourgon, Javier; de Lucas, Enrique Marco; Gomez, Elsa

    2017-09-01

    Modern sign languages used by deaf people are fully expressive, natural human languages that are perceived visually and produced manually. The literature contains little data concerning human brain organization in conditions of deficient sensory information such as deafness. A deaf-mute patient underwent surgery of a left temporoinsular low-grade glioma. The patient underwent awake surgery with intraoperative electrical stimulation mapping, allowing direct study of the cortical and subcortical organization of sign language. We found a similar distribution of language sites to what has been reported in mapping studies of patients with oral language, including 1) speech perception areas inducing anomias and alexias close to the auditory cortex (at the posterior portion of the superior temporal gyrus and supramarginal gyrus); 2) speech production areas inducing speech arrest (anarthria) at the ventral premotor cortex, close to the lip motor area and away from the hand motor area; and 3) subcortical stimulation-induced semantic paraphasias at the inferior fronto-occipital fasciculus at the temporal isthmus. The intraoperative setup for sign language mapping with intraoperative electrical stimulation in deaf-mute patients is similar to the setup described in patients with oral language. To elucidate the type of language errors, a sign language interpreter in close interaction with the neuropsychologist is necessary. Sign language is perceived visually and produced manually; however, this case revealed a cross-modal recruitment of auditory and orofacial motor areas. Copyright © 2017 Elsevier Inc. All rights reserved.

  18. Exploiting automatically generated databases of traffic signs and road markings for contextual co-occurrence analysis

    Science.gov (United States)

    Hazelhoff, Lykele; Creusen, Ivo M.; Woudsma, Thomas; de With, Peter H. N.

    2015-11-01

    Combined databases of road markings and traffic signs provide a complete and full description of the present traffic legislation and instructions. Such databases contribute to efficient signage maintenance, improve navigation, and benefit autonomous driving vehicles. A system is presented for the automated creation of such combined databases, which additionally investigates the benefit of this combination for automated contextual placement analysis. This analysis involves verification of the co-occurrence of traffic signs and road markings to retrieve a list of potentially incorrectly signaled (and thus potentially unsafe) road situations. This co-occurrence verification is specifically explored for both pedestrian crossings and yield situations. Evaluations on 420 km of road have shown that individual detection of traffic signs and road markings denoting these road situations can be performed with accuracies of 98% and 85%, respectively. Combining both approaches shows that over 95% of the pedestrian crossings and give-way situations can be identified. An exploration toward additional co-occurrence analysis of signs and markings shows that inconsistently signaled situations can successfully be extracted, such that specific safety actions can be directed toward cases lacking signs or markings, while most consistently signaled situations can be omitted from this analysis.

  19. Signs of helicity in solar prominences and related features

    Science.gov (United States)

    Martin, S.

    This review illustrates several ways to identify the chirality (handedness) of solar prominences (filaments) from their structure and the structure of their surrounding magnetic fields in the chromosphere and corona. For prominences, these structural elements include the axial magnetic field direction, orientation of barbs, and direction of the prominence fine structure. The surrounding structures include the pattern of fibrils beneath the prominences and the pattern of coronal loops above the prominences. These ways of identifying chirality are then interpreted in terms of the formal definitions of helicity to yield a consistent set of one-to-one helicity relationships for all features. The helicity of some prominences can also be independently determined during their eruption by their fine structure, apparent crossings in the line-of-sight of different parts of the same prominence, and by large- scale twist of the prominence structure. Unlike observations of prominences (filaments) observed prior to eruption, in some cases evidence of both signs of helicity are found within the same erupting prominence. This indicates the continued application of forces on the prominences during the eruption process or the possible introduction of force(s) not present during earlier stages of their evolution.

  20. Colorectal mucus binds DC-SIGN and inhibits HIV-1 trans-infection of CD4+ T-lymphocytes.

    Directory of Open Access Journals (Sweden)

    Martijn J Stax

    Full Text Available Bodily secretions, including breast milk and semen, contain factors that modulate HIV-1 infection. Since anal intercourse caries one of the highest risks for HIV-1 transmission, our aim was to determine whether colorectal mucus (CM also contains factors interfering with HIV-1 infection and replication. CM from a number of individuals was collected and tested for the capacity to bind DC-SIGN and inhibit HIV-1 cis- or trans-infection of CD4+ T-lymphocytes. To this end, a DC-SIGN binding ELISA, a gp140 trimer competition ELISA and HIV-1 capture/ transfer assays were utilized. Subsequently we aimed to identify the DC-SIGN binding component through biochemical characterization and mass spectrometry analysis. CM was shown to bind DC-SIGN and competes with HIV-1 gp140 trimer for binding. Pre-incubation of Raji-DC-SIGN cells or immature dendritic cells (iDCs with CM potently inhibits DC-SIGN mediated trans-infection of CD4+ T-lymphocytes with CCR5 and CXCR4 using HIV-1 strains, while no effect on direct infection is observed. Preliminary biochemical characterization demonstrates that the component seems to be large (>100kDa, heat and proteinase K resistant, binds in a α1-3 mannose independent manner and is highly variant between individuals. Immunoprecipitation using DC-SIGN-Fc coated agarose beads followed by mass spectrometry indicated lactoferrin (fragments and its receptor (intelectin-1 as candidates. Using ELISA we showed that lactoferrin levels within CM correlate with DC-SIGN binding capacity. In conclusion, CM can bind the C-type lectin DC-SIGN and block HIV-1 trans-infection of both CCR5 and CXCR4 using HIV-1 strains. Furthermore, our data indicate that lactoferrin is a DC-SIGN binding component of CM. These results indicate that CM has the potential to interfere with pathogen transmission and modulate immune responses at the colorectal mucosa.

  1. Colorectal mucus binds DC-SIGN and inhibits HIV-1 trans-infection of CD4+ T-lymphocytes.

    Science.gov (United States)

    Stax, Martijn J; Mouser, Emily E I M; van Montfort, Thijs; Sanders, Rogier W; de Vries, Henry J C; Dekker, Henk L; Herrera, Carolina; Speijer, Dave; Pollakis, Georgios; Paxton, William A

    2015-01-01

    Bodily secretions, including breast milk and semen, contain factors that modulate HIV-1 infection. Since anal intercourse caries one of the highest risks for HIV-1 transmission, our aim was to determine whether colorectal mucus (CM) also contains factors interfering with HIV-1 infection and replication. CM from a number of individuals was collected and tested for the capacity to bind DC-SIGN and inhibit HIV-1 cis- or trans-infection of CD4+ T-lymphocytes. To this end, a DC-SIGN binding ELISA, a gp140 trimer competition ELISA and HIV-1 capture/ transfer assays were utilized. Subsequently we aimed to identify the DC-SIGN binding component through biochemical characterization and mass spectrometry analysis. CM was shown to bind DC-SIGN and competes with HIV-1 gp140 trimer for binding. Pre-incubation of Raji-DC-SIGN cells or immature dendritic cells (iDCs) with CM potently inhibits DC-SIGN mediated trans-infection of CD4+ T-lymphocytes with CCR5 and CXCR4 using HIV-1 strains, while no effect on direct infection is observed. Preliminary biochemical characterization demonstrates that the component seems to be large (>100kDa), heat and proteinase K resistant, binds in a α1-3 mannose independent manner and is highly variant between individuals. Immunoprecipitation using DC-SIGN-Fc coated agarose beads followed by mass spectrometry indicated lactoferrin (fragments) and its receptor (intelectin-1) as candidates. Using ELISA we showed that lactoferrin levels within CM correlate with DC-SIGN binding capacity. In conclusion, CM can bind the C-type lectin DC-SIGN and block HIV-1 trans-infection of both CCR5 and CXCR4 using HIV-1 strains. Furthermore, our data indicate that lactoferrin is a DC-SIGN binding component of CM. These results indicate that CM has the potential to interfere with pathogen transmission and modulate immune responses at the colorectal mucosa.

  2. The role of syllables in sign language production.

    Science.gov (United States)

    Baus, Cristina; Gutiérrez, Eva; Carreiras, Manuel

    2014-01-01

    The aim of the present study was to investigate the functional role of syllables in sign language and how the different phonological combinations influence sign production. Moreover, the influence of age of acquisition was evaluated. Deaf signers (native and non-native) of Catalan Signed Language (LSC) were asked in a picture-sign interference task to sign picture names while ignoring distractor-signs with which they shared two phonological parameters (out of three of the main sign parameters: Location, Movement, and Handshape). The results revealed a different impact of the three phonological combinations. While no effect was observed for the phonological combination Handshape-Location, the combination Handshape-Movement slowed down signing latencies, but only in the non-native group. A facilitatory effect was observed for both groups when pictures and distractors shared Location-Movement. Importantly, linguistic models have considered this phonological combination to be a privileged unit in the composition of signs, as syllables are in spoken languages. Thus, our results support the functional role of syllable units during phonological articulation in sign language production.

  3. Medical diagnosis through semiotics. Giving meaning to the sign.

    Science.gov (United States)

    Burnum, J F

    1993-11-01

    Physicians are engaged in incorporating quantitative methods for making clinical decisions into their practices. An acquaintance with semiotics, the doctrine of signs, may complement this project. A sign stands for something. We communicate indirectly through signs, and by interpreting what signs mean we make sense of our world and diagnose and understand our patients. Thus, through association and inference, we transform flowers into love, Othello into jealousy, and staring eyes into thyrotoxicosis. Characteristically in diagnosis, beginning with an unstable inference, we test and otherwise ask questions likely to produce signs that support (or discredit) our hypothesis. In a literary sense, we join with the author to clarify and rewrite the text; creative interpretation is the key. Diagnosis is concluded through narration, by the meaning that is revealed by telling the story of the patient. Diagnosis will succeed only to the extent that we respect the principles and caveats of sign interpretation. The sign is both the key to the unknown and the master impersonator. The sign and its meaning are usually not the same; meaning has to be inferred. Because interpretations are made subjectively, they are circumscribed by the experience and bias of the clinician. Moreover, the contexts in which the sign appears shape the meaning of the sign and may change it altogether.

  4. Children's choice: Color associations in children's safety sign design.

    Science.gov (United States)

    Siu, Kin Wai Michael; Lam, Mei Seung; Wong, Yi Lin

    2017-03-01

    Color has been more identified as a key consideration in ergonomics. Color conveys messages and is an important element in safety signs, as it provides extra information to users. However, very limited recent research has focused on children and their color association in the context of safety signs. This study thus examined how children use colors in drawing different safety signs and how they associate colors with different concepts and objects that appear in safety signs. Drawing was used to extract children's use of color and the associations they made between signs and colors. The child participants were given 12 referents of different safety signs and were asked to design and draw the signs using different colored felt-tip pens. They were also asked to give reasons for their choices of colors. Significant associations were found between red and 'don't', orange and 'hands', and blue and 'water'. The child participants were only able to attribute the reasons for the use of yellow, green, blue and black through concrete identification and concrete association, and red through abstract association. The children's use of color quite differs from that shown in the ISO registered signs. There is a need to consider the use of colors carefully when designing signs specifically for children. Sign designers should take children's color associations in consideration and be aware if there are any misunderstandings. Copyright © 2016 Elsevier Ltd. All rights reserved.

  5. A Study on Guide Sign Validity in Driving Simulator

    Directory of Open Access Journals (Sweden)

    Wei Zhonghua

    2011-12-01

    Full Text Available The role of guide sign to inform road user about the information of network is important. How to design and locate guide sign to increase traffic operation efficiency is a key point for traffic engineers. Driving simulator is useful devised to study guide sign in the process and system control. For the purpose of studying guide signs using the tool of driving simulator, guide sign's validity in driving simulator was studied. Results of this experiment are the foundation of further study on guide sign. Simulator calibration procedure for guide sign was set up in this study. Legibility distance as measure of performance was used to evaluate the validity of guide sign in driving simulator. Thirty two participants were recruited. Results indicated legibility distance and speed were inversely related with the method of data mining. Legibility distance and text height of guide sign were positive related. When speed is 20km/h, 30km/h, 40km/h, magnifying power of text height is 4.3, 4.1, 3.8, while guide signs are absolute validity in driving simulator.

  6. Parkinsonian signs are a risk factor for falls.

    Science.gov (United States)

    Dahodwala, Nabila; Nwadiogbu, Chinwe; Fitts, Whitney; Partridge, Helen; Karlawish, Jason

    2017-06-01

    Parkinsonian signs are common, non-specific findings in older adults and associated with increased rates of dementia and mortality. It is important to understand which motor outcomes are associated with parkinsonian signs. To determine the role of parkinsonian signs on fall rates among older adults. We conducted a longitudinal study of primary care patients from the University of Pennsylvania Health System. Adults over 55 years were assessed at baseline through surveys and a neurological examination. We recorded falls over the following 2 years. Parkinsonian signs were defined as the presence of 2 of 4 cardinal signs. Incident falls were compared between subjects with and without parkinsonian signs, and modified Poisson regression used to adjust for potential confounders in the relationship between parkinsonian signs and falls. 982 subjects with a mean age of 68 (s.d. 8.8) years participated. 29% of participants fell and 12% exhibited parkinsonian signs at baseline. The unadjusted RR for falls among individuals with parkinsonian signs was 1.36 (95% CI 1.05-1.76, p=0.02). After adjusting for age, cognitive function, urinary incontinence, depression, diabetes, stroke and arthritis, individuals with parkinsonian signs were still 38% more likely to fall than those without parkinsonian signs (RR 1.38, 95% CI 1.04-1.82; p=0.03). Falls among those with parkinsonian signs were more likely to lead to injury (53% vs 37%; p=0.04). Parkinsonian signs are a significant, independent risk factor for falls. Early detection of this clinical state is important in order to implement fall prevention programs among primary care patients. Copyright © 2017 Elsevier B.V. All rights reserved.

  7. The bony crescent sign - a new sign of facial nerve schwannoma

    International Nuclear Information System (INIS)

    Watts, A.; Fagan, P.

    1992-01-01

    Schwannomas are relatively uncommon intracranial tumours. They most commonly involve the acoustic nerve followed in frequency by the trigeminal nerve. Other cranial nerves are rarely involved. Facial nerve schwannomas occurring within the petrous temporal bone are very rare. Their diagnosis may be missed prospectively even when appropriate computerized tomography (CT) scans are performed. Even in retrospect the site of abnormality may be difficult to identify, especially if there is an associated middle ear mass such as a cholesteatoma. In the 4 cases presented the facial nerve schwannoma was seen on high resolution CT as a soft tissue mass bounded anteriorly by a thin rim of bone. This bony crescent sign is a previously undescribed feature of facial nerve schwannoma which appears to be strongly indicative of the presence of this tumour. Recognition of this sign makes these tumours arising in the region of the geniculate ganglion easy to diagnose prospectively. 12 refs., 6 figs

  8. New holographic limit of AdS5(multiply-in-circle sign)S5

    International Nuclear Information System (INIS)

    Hatsuda, Machiko; Siegel, Warren

    2003-01-01

    We reexamine the projective light cone limit of the gauge-invariant Green-Schwarz action on five-dimensional anti-de Sitter (multiply-in-circle sign) the five-sphere. It implies the usual holography for AdS 5 , but also (a complex) one for S 5 . The result is N=4 projective superspace, which unlike N=4 harmonic superspace can describe N=4 super Yang-Mills theory off shell

  9. Telltale signs of patient-centered diagnosis.

    Science.gov (United States)

    Millenson, Michael L

    2014-01-01

    A best-selling book from the mid-1980s was entitled, All I Really Need to Know I Learned in Kindergarten. Some doctors may similarly feel that well-worn epigrams from Hippocrates, Osler and others have told them all they really need to know about patient-centered care. The problem is that aphorisms and action are not one and the same. The workup for patient-centered diagnosis takes work, and there are telltale signs along the way. Effective patient engagement requires training and practice. It means incorporating patient-generated data into the diagnostic process. And it means being sensitive to new economic constraints on patients. Ensuring that diagnostic processes and decisions meet the test of patient-centeredness poses a challenge. The new criteria do not replace the professional obligation of beneficence; rather they add an additional obligation of power sharing. While that is neither simple nor easy, it promises better care for patients, a more satisfying clinical encounter and a better health care system for all.

  10. Road Signs: Geosemiotics and Human Mobility

    DEFF Research Database (Denmark)

    Hamid, Salmiah Binti Abdul

    In order to provide an overview of the state-of-the-art developments, this thesis presents a theoretical lens that is used to anchor the subjects of the studies of ‘people’, ‘road signs’ and ‘built environment’ through the theories of geosemiotics and mobility. The fields of geosemiotics and mobi......In order to provide an overview of the state-of-the-art developments, this thesis presents a theoretical lens that is used to anchor the subjects of the studies of ‘people’, ‘road signs’ and ‘built environment’ through the theories of geosemiotics and mobility. The fields of geosemiotics...... and mobility are important aspects of this research; they provide another theoretical challenge in the form of merging these two disciplines in the analysis in order to enhance a dialogue between the fields of urban design and graphic design practices. Thus, the interrelation between the two theories will help...... to answer the question of whether road signs have significant impact on human behaviour when moving in an urban environment. Selected cities in Denmark and Scotland were used as study areas in this research project. The methods were conducted within urban settings as well as controlled settings...

  11. New diagnostic signs in hydatid diseases

    International Nuclear Information System (INIS)

    Sinner, W.N. von

    1991-01-01

    17 of 70 patients with hydatid disease had verified Echinococcus granulosis infection of the chest. In 14 patients (20 percent) the primary location was the lung parenchyma. 2 patients had primary and 1 secondary mediastinal hydatid cysts, and 1 patient a primary hydatid cyst of the chest wall. In 3 above-mentioned patients, secondary pleural involvement occurred, of which 2 were due to ruptured pulmonary cysts and 1 due to an hydatid cyst arising in the liver and having prolapsed into the chest. In all cases, clinical findings, radiography, ultrasound, computed tomography (CT) and/or magnetic resonance imaging (MRI) were correlated to macroscopic and microscopic pathology. Characteristic signs made recognition of hydatid disease possible, sometimes even when serologic tests had been non-conclusive. Assessment of other cysts throughout the body with or without involvement of neighbouring organs or tissues allowed appropriate therapeutic management. CT and MRI also played a key role in recognizing complications (e.g., rupture, infection of cysts). (author). 43 refs.; 8 figs.; 1 tab

  12. Radiological signs of childhood Langerhans cell histiocytosis

    International Nuclear Information System (INIS)

    Mas, F.; Menor, F.; Moreno, A.; Vallcanera, A.; Esteban, M.J.; Muro, D.; Cortina, H.

    1997-01-01

    To describe the most prominent radiological sings of Langerhans cell histiocytosis (LCH) in childhood and review the general aspects of greatest interest to the general radiologist. The clinical and radiological histories of 40 children diagnosed on the basis of biopsy and/or cytology as having LCH in our center over a 16-year period were reviewed. Bone involvement was observed in 95% of patients; flat bones were affected in 95% of the cases, most frequently the cranium. Radiological changes in temporal bone were viewed in 15% of cases. There were long-bone lesions in 21% of the patients, involving, metaphyseal-diaphyseal bones in every case; multiple epiphyseal dysplasia was found in one and a purely cortical lesion in another. Vertebral involvement was detected in 18% of patients. Clinical evidence of diabetes insipidus (DI) was present in 22.5% of cases, while there were clinical or radiological signs of lung involvement in 15%. Bone involvement is the most common association reported in childhood LCH and is usually the reason for medical consultation. The flat bones, especially the cranium, are those most often affected. Diagnosis and follow-up studies are mainly based on plain radiography. DI due to hypothalamic infiltration in usually associated with normal CT scan. Lung involvement, uncommon in pediatric patients, is the major clinical and radiological difference with respect to the adult form. (Author) 33 refs

  13. Sites of Sign-Production and Interpretation

    Directory of Open Access Journals (Sweden)

    Maria-Ana Tupan

    2016-03-01

    Full Text Available T.S. Eliot’s query in The Waste Land, “Who is the third who walks always beside you?” may be said to sum up the hermeneutic situation of any language act, whether of sign production or interpretation. Whereas traditional topoi of expressionist aesthetics, such as the artist’s subjectivity, empirical psychology, truthfulness, intentionality, etc. have become irrelevant in the heteroglottic discourse of the most famous dirge on the decaying West, Eliot’s awareness of the matrical role of cultural semiosis allows us to place him among the founding fathers of semiotic aesthetics. The anagnorisis episode in The Waste Land is one of appropriate reading of the body of Christ through knowledge of the crucifixion scene and associated symbolism.Rooted in the insights of Charles Peirce Sanders and Charles Morris, and enlarged by post-war contributors, such as Roland Barthes, Umberto Eco, Michael B. Hardt, Richard Rudner, Foucault, Vattimo, Baudrillard and Deleuze, the semiotic, cultural materialist, or genetic approach  to art makes interpretation dependent on a mediating third (Peirce: the Interpretant, which is variously related to context, regime of signification, episteme, schemata, generic convention, structure of feeling, triangulation of desire ...

  14. Open notes: doctors and patients signing on.

    Science.gov (United States)

    Delbanco, Tom; Walker, Jan; Darer, Jonathan D; Elmore, Joann G; Feldman, Henry J; Leveille, Suzanne G; Ralston, James D; Ross, Stephen E; Vodicka, Elisabeth; Weber, Valerie D

    2010-07-20

    Few patients read their doctors' notes, despite having the legal right to do so. As information technology makes medical records more accessible and society calls for greater transparency, patients' interest in reading their doctors' notes may increase. Inviting patients to review these notes could improve understanding of their health, foster productive communication, stimulate shared decision making, and ultimately lead to better outcomes. Yet, easy access to doctors' notes could have negative consequences, such as confusing or worrying patients and complicating rather than improving patient-doctor communication. To gain evidence about the feasibility, benefits, and harms of providing patients ready access to electronic doctors' notes, a team of physicians and nurses have embarked on a demonstration and evaluation of a project called OpenNotes. The authors describe the intervention and share what they learned from conversations with doctors and patients during the planning stages. The team anticipates that "open notes" will spread and suggests that over time, if drafted collaboratively and signed by both doctors and patients, they might evolve to become contracts for care.

  15. Ombuds' Corner: Signs of our times?!

    CERN Multimedia

    Sudeshna Datta-Cockerill

    2014-01-01

    Do you get up in the morning and go online before getting your coffee? Do you sit down to meals with your mobile phone next to your plate? Do you get an awful feeling of complete disorientation and not knowing what to do with yourself when you disconnect from the Internet? As exaggerated as these actions may have seemed a few years ago, today they are familiar occurrences that are indeed the signs of our times.   “I connect, therefore I am” seems to be the new version of Descartes’ famous saying. The technological possibility of 24/7 worldwide connectivity is now an everyday fact of life and we all enjoy having knowledge at our fingertips and the ability to communicate across the globe quasi-instantaneously. In the work environment, this development has brought a flexibility and availability that has completely changed the way we work and interact with each other. This constant connectivity allows us to organise our lives differently, and we find ourselves worki...

  16. Habitable worlds with no signs of life.

    Science.gov (United States)

    Cockell, Charles S

    2014-04-28

    'Most habitable worlds in the cosmos will have no remotely detectable signs of life' is proposed as a biological hypothesis to be tested in the study of exoplanets. Habitable planets could be discovered elsewhere in the Universe, yet there are many hypothetical scenarios whereby the search for life on them could yield negative results. Scenarios for habitable worlds with no remotely detectable signatures of life include: planets that are habitable, but have no biosphere (Uninhabited Habitable Worlds); planets with life, but lacking any detectable surface signatures of that life (laboratory examples are provided); and planets with life, where the concentrations of atmospheric gases produced or removed by biota are impossible to disentangle from abiotic processes because of the lack of detailed knowledge of planetary conditions (the 'problem of exoplanet thermodynamic uncertainty'). A rejection of the hypothesis would require that the origin of life usually occurs on habitable planets, that spectrally detectable pigments and/or metabolisms that produce unequivocal biosignature gases (e.g. oxygenic photosynthesis) usually evolve and that the organisms that harbour them usually achieve a sufficient biomass to produce biosignatures detectable to alien astronomers.

  17. Black Toenail Sign in MELAS Syndrome.

    Science.gov (United States)

    Whitehead, Matthew T; Wien, Michael; Lee, Bonmyong; Bass, Nancy; Gropman, Andrea

    2017-10-01

    Mitochondrial encephalopathy with lactic acidosis and stroke-like episodes (MELAS) syndrome is a mitochondrial disorder often causing progressive brain injury that is not confined to large arterial territories. Severe insults ultimately lead to gyral necrosis affecting the cortex and juxtacortical white matter; the neuroimaging correlate is partial gyral signal suppression on T2/FLAIR sequences that resemble black toenails. We aimed to characterize the imaging features and the natural history of MELAS-related gyral necrosis. Databases at two children's hospitals were searched for brain magnetic resonance imaging studies of individuals with MELAS. Examinations with motion artifact and those lacking T2/FLAIR sequences were excluded. The location, the cumulative number, and the maximum transverse diameter of necrotic gyral lesions were assessed using T2-weighted images and T2/FLAIR sequences. Wilcoxon signed-rank test was employed to evaluate the relationship between disease duration and the number of necrotic lesions. One hundred twenty-four examinations from patients with 14 unique MELAS patients (16 ± 3 years) were evaluated. Six of the eight patients who developed brain lesions also developed gyral necroses (mean 13, range 0 to 44). Necrotic lesions varied in maximal diameter from 4 to 25 mm. Cumulative necrotic lesions correlated with disease duration (P MELAS syndrome. The extent of gyral necrosis correlates with disease duration. Copyright © 2017 Elsevier Inc. All rights reserved.

  18. Statistical Signs of Social Influence on Suicides

    Science.gov (United States)

    Melo, Hygor Piaget M.; Moreira, André A.; Batista, Élcio; Makse, Hernán A.; Andrade, José S.

    2014-09-01

    By treating the suicide as a social fact, Durkheim envisaged that suicide rates should be determined by the connections between people and society. Under the same framework, he considered that crime is bound up with the fundamental conditions of all social life. The social effect on the occurrence of homicides has been previously substantiated, and confirmed here, in terms of a superlinear scaling relation: by doubling the population of a Brazilian city results in an average increment of 135% in the number of homicides, rather than the expected isometric increase of 100%, as found, for example, for the mortality due to car crashes. Here we present statistical signs of the social influence on the suicide occurrence in cities. Differently from homicides (superlinear) and fatal events in car crashes (isometric), we find sublinear scaling behavior between the number of suicides and city population, with allometric power-law exponents, β = 0.84 +/- 0.02 and 0.87 +/- 0.01, for all cities in Brazil and US counties, respectively. Also for suicides in US, but using the Metropolitan Statistical Areas (MSAs), we obtain β = 0.88 +/- 0.01.

  19. Information and Signs: The Language of Images

    Directory of Open Access Journals (Sweden)

    Inna Semetsky

    2010-03-01

    Full Text Available Since time immemorial, philosophers and scientists were searching for a “machine code” of the so-called Mentalese language capable of processing information at the pre-verbal, pre-expressive level. In this paper I suggest that human languages are only secondary to the system of primitive extra-linguistic signs which are hardwired in humans and serve as tools for understanding selves and others; and creating meanings for the multiplicity of experiences. The combinatorial semantics of the Mentalese may find its unorthodox expression in the semiotic system of Tarot images, the latter serving as the ”keys” to the encoded proto-mental information. The paper uses some works in systems theory by Erich Jantsch and Erwin Laszlo and relates Tarot images to the archetypes of the field of collective unconscious posited by Carl Jung. Our subconscious beliefs, hopes, fears and desires, of which we may be unaware at the subjective level, do have an objective compositional structure that may be laid down in front of our eyes in the format of pictorial semiotics representing the universe of affects, thoughts, and actions. Constructing imaginative narratives based on the expressive “language” of Tarot images enables us to anticipate possible consequences and consider a range of future options. The thesis advanced in this paper is also supported by the concept of informational universe of contemporary cosmology.

  20. Central dot sign in entities other than Caroli disease

    International Nuclear Information System (INIS)

    Ahmadi, T.; Itai, Yuji; Minami, Manabu.

    1997-01-01

    The purpose of this study was to describe central dot sign (tiny dots with strong contrast enhancement of the portal vein within dilated hepatic bile ducts on computed tomography) in entities other than Caroli disease, especially in peribiliary cysts with or without autosomal-dominant polycystic kidney disease. Computed tomography in 74 cases of peribiliary cysts and 134 cases of other liver diseases and states possibly showing central dot sign were retrospectively reviewed to examine the central dot sign. In three cases of peribiliary cysts, some part of the liver showed strongly enhanced portal radicles surrounded completely or partially by low-attenuation, enlarged peribiliary cysts, presenting ''central dot sign'' on contrast-enhanced computed tomography. We suggest that in addition to Caroli disease, some other entities and diseases of the liver may demonstrate central dot sign and this sign should not be considered a specific finding of Caroli disease. (author)

  1. Central dot sign in entities other than Caroli disease

    Energy Technology Data Exchange (ETDEWEB)

    Ahmadi, T.; Itai, Yuji [Tsukuba Univ., Ibaraki (Japan). Inst. of Clinical Medicine; Minami, Manabu

    1997-11-01

    The purpose of this study was to describe central dot sign (tiny dots with strong contrast enhancement of the portal vein within dilated hepatic bile ducts on computed tomography) in entities other than Caroli disease, especially in peribiliary cysts with or without autosomal-dominant polycystic kidney disease. Computed tomography in 74 cases of peribiliary cysts and 134 cases of other liver diseases and states possibly showing central dot sign were retrospectively reviewed to examine the central dot sign. In three cases of peribiliary cysts, some part of the liver showed strongly enhanced portal radicles surrounded completely or partially by low-attenuation, enlarged peribiliary cysts, presenting ``central dot sign`` on contrast-enhanced computed tomography. We suggest that in addition to Caroli disease, some other entities and diseases of the liver may demonstrate central dot sign and this sign should not be considered a specific finding of Caroli disease. (author)

  2. Toward solving the sign problem with path optimization method

    Science.gov (United States)

    Mori, Yuto; Kashiwa, Kouji; Ohnishi, Akira

    2017-12-01

    We propose a new approach to circumvent the sign problem in which the integration path is optimized to control the sign problem. We give a trial function specifying the integration path in the complex plane and tune it to optimize the cost function which represents the seriousness of the sign problem. We call it the path optimization method. In this method, we do not need to solve the gradient flow required in the Lefschetz-thimble method and then the construction of the integration-path contour arrives at the optimization problem where several efficient methods can be applied. In a simple model with a serious sign problem, the path optimization method is demonstrated to work well; the residual sign problem is resolved and precise results can be obtained even in the region where the global sign problem is serious.

  3. Lhermitte's sign and vitamin B12 deficiency: case report

    OpenAIRE

    Teive, Hélio Afonso Ghizoni; Haratz, Salo; Zavala, Jorge; Munhoz, Renato Puppi; Scola, Rosana Hermínia; Werneck, Lineu César

    2009-01-01

    CONTEXT AND OBJECTIVE: Lhermitte's sign, a classical neurological sign, is a rare manifestation of vitamin B12 deficiency. The aim here was to report on a case of an elderly patient with vitamin B12 deficiency whose first clinical manifestation was the presence of Lhermitte's sign. CASE REPORT: We describe an elderly patient with vitamin B12 deficiency who presented cognitive dysfunction, peripheral polyneuropathy and sensory ataxia, and whose first clinical manifestation was the presence of ...

  4. Opposite cerebral dominance for reading and sign language

    OpenAIRE

    Komakula, Sirisha. T.; Burr, Robert. B.; Lee, James N.; Anderson, Jeffrey

    2010-01-01

    We present a case of right hemispheric dominance for sign language but left hemispheric dominance for reading, in a left-handed deaf patient with epilepsy and left mesial temporal sclerosis. Atypical language laterality for ASL was determined by preoperative fMRI, and congruent with ASL modified WADA testing. We conclude that reading and sign language can have crossed dominance and preoperative fMRI evaluation of deaf patients should include both reading and sign language evaluations.

  5. Search for wrong-sign D0 decays

    International Nuclear Information System (INIS)

    Abachi, S.; Baringer, P.; Bylsma, B.G.; Debonte, R.; Koltick, D.; Loeffler, F.J.; Low, E.H.; McIlwain, R.L.; Miller, D.H.; Ng, C.R.; Shibata, E.I.; Akerlof, C.; Chapman, J.; Errede, D.; Meyer, D.I.; Nitz, D.; Seidl, A.; Thun, R.; Blockus, D.; Brabson, B.; Brom, J.M.; Ogren, H.; Rust, D.R.; Snyder, A.; Cork, B.; Derrick, M.; Kooijman, P.; Musgrave, B.; Price, L.E.; Repond, J.; Sugano, K.; Gan, K.K.; Jung, C.; Kesten, P.; Loos, J.S.; Rangan, L.K.; Wood, D.E.; Weiss, J.M.

    1986-01-01

    Using a data sample corresponding to an integrated luminosity of 300 pb -1 obtained at PEP with the High Resolution Spectrometer, the wrong-sign decay D 0 →K + π - has been searched for using a sample of D * →D 0 π events. A 4% upper limit is obtained at the 90% confindence level for the ratio of the wrong sign to the right sign decay rate in the Kπ mode. (orig.)

  6. Research of convolutional neural networks for traffic sign recognition

    OpenAIRE

    Stadalnikas, Kasparas

    2017-01-01

    In this thesis the convolutional neural networks application for traffic sign recognition is analyzed. Thesis describes the basic operations, techniques that are commonly used to apply in the image classification using convolutional neural networks. Also, this paper describes the data sets used for traffic sign recognition, their problems affecting the final training results. The paper reviews most popular existing technologies – frameworks for developing the solution for traffic sign recogni...

  7. An Interpreter's Interpretation: Sign Language Interpreters' View of Musculoskeletal Disorders

    National Research Council Canada - National Science Library

    Johnson, William L

    2003-01-01

    Sign language interpreters are at increased risk for musculoskeletal disorders. This study used content analysis to obtain detailed information about these disorders from the interpreters' point of view...

  8. Tracheal dimness as a sign of mediastinal pathology

    International Nuclear Information System (INIS)

    Schiavon, F.; Nardini, S.; Giannico, S.

    1987-01-01

    Some cases of mediastinal pathology in which the only pathological pattern was a dimness of the tracheal transparency are described. This sign is not described in previous report and is described as a short break in the aerial tracheogram as seen on the frontal roentgenograph. This sign is produced by an increase in the structures outside the trachea or by a decrease in the air column inside the trachea. Conventional and CT anatomic findings which account for the sign are discussed. A short review of the normal causes of tracheal dimness is presented. This sign may be useful expecially in emergency radiology, since it provides additional information to a simple routine chest roentgenograph

  9. An exploration of public knowledge of warning signs for cancer.

    Science.gov (United States)

    Keeney, Sinead; McKenna, Hugh; Fleming, Paul; McIlfatrick, Sonja

    2011-02-01

    Warning signs of cancer have long been used as an effective way to summarise and communicate early indications of cancer to the public. Given the increasing global burden of cancer, the communication of these warning signs to the public is more important than ever before. This paper presents part of a larger study which explored the attitudes, knowledge and behaviours of people in mid-life towards cancer prevention. The focus of this paper is on the assessment of the knowledge of members of the public aged between 35 and 54 years of age. A questionnaire was administered to a representative sample of the population listing 17 warning signs of cancer. These included the correct warning signs and distracter signs. Respondents were asked to correctly identify the seven warning signs. Findings show that respondents could identify 4.8 cancer warning signs correctly. Analysis by demographics shows that being female, being older, having a higher level of educational attainment and being in a higher socio-economic group are predictors of better level of knowledge of cancer warning signs. Recommendations are proffered with regard to better targeting, clarification and communication of cancer warning signs. Copyright © 2010 Elsevier Ltd. All rights reserved.

  10. Single Sign-on Authentication server (part of CLARIN infrastructure)

    NARCIS (Netherlands)

    de Jong, H.A.; Maas, M.

    2013-01-01

    The Huygens Single Sign-on server allows federated logins (authentication) via SURFconext affiliates thus facilitating all connected (academic / research) institutes to use online Huygens ING software services.

  11. Mental Health and Teens: Watch for Danger Signs

    Science.gov (United States)

    ... Gradeschool Teen Dating & Sex Fitness Nutrition Driving Safety School Substance Use Young Adult Healthy Children > Ages & Stages > Teen > Mental Health and Teens: Watch for Danger Signs Ages & Stages ...

  12. First signs of elderly gait for women.

    Science.gov (United States)

    Kaczmarczyk, Katarzyna; Wiszomirska, Ida; Błażkiewicz, Michalina; Wychowański, Michał; Wit, Andrzej

    2017-06-27

    The aims of this study have been twofold: to attempt to reduce the number of spatiotemporal parameters used for describing gait through the factor analysis and component analysis; and to explore the critical age of decline for other gait parameters for healthy women. A total of 106 women (aged ≥ 40 years old (N = 76) and ≤ 31 years old (N = 30)) were evaluated using a pressure-sensitive mat (Zebris Medical System, Tübingen, Germany) for collecting spatiotemporal gait parameters. The factor analysis identified 2 factors - labelled Time and Rhythm - that accounted for 72% of the variation in significant free-gait parameters; the principal component analysis identified 4 of these parameters that permit full clinical evaluation of gait quality. No difference was found between the groups in terms of the values of parameters reflecting the temporal nature of gait (Rhythm), namely step time, stride time and cadence, whereas significant differences were found for total double support phase (p gait, we selected 3 parameters: total double support, stride time and velocity. We concluded that the women taking part in the experiment manifested significant signs of senile gait after the age of 60 years old, with the first symptoms thereof already manifesting themselves after 50 years of age. We show that among 26 spatiotemporal parameters that may be used for characterizing gait, at least a half of them may be omitted in the assessment of gait correctness; a finding that may be useful in clinical practice. The finding that the onset of senile gait occurs in the case of women after the age of 60 years old, in turn, may be useful in evaluating the ability for performing types of physical work that mainly require ambulation. Med Pr 2017;68(4):441-448. This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.

  13. CDC Vital Signs–Motor Vehicle Crash Deaths

    Centers for Disease Control (CDC) Podcasts

    2016-07-06

    This podcast is based on the July 2016 CDC Vital Signs report. In the U.S., about 90 people die in motor vehicle crashes each day and thousands more are injured, resulting in hundreds of millions of dollars in direct medical costs each year. Learn what you can do to stay safe.  Created: 7/6/2016 by National Center for Injury Prevention and Control (NCIPC).   Date Released: 7/6/2016.

  14. Adult Sail Sign: Radiographic and Computed Tomographic Features

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Yu-Jin; Han, Daehee; Koh, Young Hwan; Zo, Joo Hee; Kim, Sang-Hyun; Kim, Deog Kyeom; Lee, Jeong Sang; Moon, Hyeon Jong; Kim, Jong Seung; Chun, Eun Ju; Youn, Byung Jae; Lee, Chang Hyun; Kim, Sam Soo (Dept. of Radiology, Cheil General Hospital, Kwandong Univ. College of Medicine, Seoul (KR))

    2008-02-15

    Background: The sail sign is a well-known radiographic feature of the pediatric chest. This sign can be observed in an adult population as well, but for a different reason. Purpose: To investigate the sail sign appearing in adult chest radiography. Material and Methods: Based on two anecdotal adult cases in which frontal chest radiographs showed the sail sign, we prospectively screened radiographs of 10,238 patients to determine the incidence of the sail sign found in adults in their 40s or older. The cause of the sail sign was assessed using computed tomography (CT). Results: The sail sign was revealed in 10 (seven males, three females; median age 60.6 years) of 10,238 patients. Of these 10 patients with a sail sign on frontal radiographs, eight underwent CT. The frontal radiographs of these 10 patients showed a concave superior margin toward the lung in nine patients, a concave inferior margin in five, and a double-lined inferior margin in three. Lateral radiographs disclosed a focal opacity over the minor fissure in five of six patients, which was either fuzzy (n = 4) or sharp (n = 1) in its upper margin, and was sometimes double lined in the inferior margin (n = 3). CT revealed the anterior mediastinal fat to be the cause of the radiographic sail sign, which stretched laterally from the mediastinum to insinuate into the minor fissure. Conclusion: The incidence of sail sign on adult chest radiographs is about 0.1%. The sign is specific enough to eliminate the need for more sophisticated imaging

  15. Adult Sail Sign: Radiographic and Computed Tomographic Features

    International Nuclear Information System (INIS)

    Lee, Yu-Jin; Han, Daehee; Koh, Young Hwan; Zo, Joo Hee; Kim, Sang-Hyun; Kim, Deog Kyeom; Lee, Jeong Sang; Moon, Hyeon Jong; Kim, Jong Seung; Chun, Eun Ju; Y oun, Byung Jae; Lee, Chang Hyun; Kim, Sam Soo

    2008-01-01

    Background: The sail sign is a well-known radiographic feature of the pediatric chest. This sign can be observed in an adult population as well, but for a different reason. Purpose: To investigate the sail sign appearing in adult chest radiography. Material and Methods: Based on two anecdotal adult cases in which frontal chest radiographs showed the sail sign, we prospectively screened radiographs of 10,238 patients to determine the incidence of the sail sign found in adults in their 40s or older. The cause of the sail sign was assessed using computed tomography (CT). Results: The sail sign was revealed in 10 (seven males, three females; median age 60.6 years) of 10,238 patients. Of these 10 patients with a sail sign on frontal radiographs, eight underwent CT. The frontal radiographs of these 10 patients showed a concave superior margin toward the lung in nine patients, a concave inferior margin in five, and a double-lined inferior margin in three. Lateral radiographs disclosed a focal opacity over the minor fissure in five of six patients, which was either fuzzy (n = 4) or sharp (n = 1) in its upper margin, and was sometimes double lined in the inferior margin (n = 3). CT revealed the anterior mediastinal fat to be the cause of the radiographic sail sign, which stretched laterally from the mediastinum to insinuate into the minor fissure. Conclusion: The incidence of sail sign on adult chest radiographs is about 0.1%. The sign is specific enough to eliminate the need for more sophisticated imaging

  16. «Existe-t-il des signes visuels?» Rivisitazione del Traité du signe visueldel Groupe μ

    Directory of Open Access Journals (Sweden)

    Michele Amadò

    2008-06-01

    Full Text Available In order to develop its great potential, visual communication needs to be founded on the characteristics of the visual channel and on the typologies of the visual signs (iconic and plastic, therefore, on a specific semiotic and rhetoric distinct from the ones of the linguistic sign. Visual signs, in particular the noblest expressions like the artistic ones, reveal themselves more as aims rather than as means. They do not point away from themselves but to themselves: this connotation is founded on the autonomy of visual signs as regards the reported reality. The respective itineraries can emphasize the possibilities and inherent to a visually constructed logic with nonverbal characteristics.

  17. Direct Democracy

    DEFF Research Database (Denmark)

    Beramendi, Virginia; Ellis, Andrew; Kaufman, Bruno

    While many books on direct democracy have a regional or national approach, or simply focus on one of the many mechanisms associated with direct democracy, this Handbook delves into a global comparison of direct democracy mechanisms, including referendums, citizens' initiatives, agenda initiatives...... learned. In addition, the uniquely comprehensive world survey outlines direct democracy provisions in 214 countries and territories and indicates which, if any, of these provisions are used by each country or territory at both the national and sub-national levels. Furthermore, the world survey includes...

  18. Increased sign-tracking behavior in adolescent rats.

    Science.gov (United States)

    DeAngeli, Nicole E; Miller, Sarah B; Meyer, Heidi C; Bucci, David J

    2017-11-01

    An autoshaping procedure was used to test the notion that conditioned stimuli (CSs) gain greater incentive salience during adolescence than young adulthood under conditions of social isolation rearing and food restriction. Rats were single-housed and placed on food restriction during 10 daily training sessions in which a lever (CS + ) was presented then followed immediately by a food unconditioned stimulus (US). A second lever (CS - ) was presented on intermixed trials and was not reinforced. Despite the fact that food delivery was not contingent on the rats' behavior, all rats exhibited behaviors directed towards the lever (i.e., sign-tracking). In the adolescent group, the rate of lever pressing and the percentage of trials with a lever press were higher than in young adults. Initially, group differences were observed when rats were retrained when the adolescents had reached young adulthood. These findings support the hypothesis that cues that come to predict reward become imbued with excessive motivational value in adolescents, perhaps contributing to the hyper-responsiveness to reward-related stimuli typically observed during this period of development. © 2017 Wiley Periodicals, Inc.

  19. Unravelling hieroglyphs : urban traffic signs and the league of nations

    NARCIS (Netherlands)

    Schipper, F.

    2009-01-01

    This article discusses road traffic signs in the Interwar years. The article first sketches the often difficult relationship between the car and the city and society at large. It proposes road signs were introduced in part to mitigate this antagonistic relation. On the eve of the First World War

  20. Presenting signs of retinoblastoma at a tertiary level teaching ...

    African Journals Online (AJOL)

    The commonest presenting sign was proptosis 22(53.7%) followed by leucocorea nine (22%),ocular inflammation four (9.0 %), strabismus three (7.3%), glaucoma one (2.4%), loss of vision one (2.4%)and hyphemaone (2.4%). Conclusion: The commonest presenting signs of retinoblastoma in our set up were Proptosis ...

  1. Poetry in South African Sign Language: What is different? | Baker ...

    African Journals Online (AJOL)

    Log in or Register to get access to full text downloads. ... Poetry in a sign language can make use of literary devices just as poetry in a ... This poem illustrates well the multi-layered meaning that can be created in sign language poetry through ...

  2. Spousal Recollections of Early Signs of Primary Progressive Aphasia

    Science.gov (United States)

    Pozzebon, Margaret; Douglas, Jacinta; Ames, David

    2018-01-01

    Background: Although primary progressive aphasia (PPA) is characterized by progressive loss of language and communication skills, knowledge about the earliest emerging signs announcing the onset of this condition is limited. Aims: To explore spousal recollections regarding the earliest signs of PPA and to compare the nature of the earliest…

  3. Tell-Tale Signs: Reflection towards the Acquisition of Academic ...

    African Journals Online (AJOL)

    Tell-Tale Signs: Reflection towards the Acquisition of Academic Discourses as Second Languages. ... Stellenbosch Papers in Linguistics ... After enrolling in a sign language course, we – lecturers teaching academic discourses – decided to explore this phenomenon and determine the implications for pedagogical practice.

  4. Italian Sign Language (LIS) Poetry: Iconic Properties and Structural Regularities.

    Science.gov (United States)

    Russo, Tommaso; Giuranna, Rosaria; Pizzuto, Elena

    2001-01-01

    Explores and describes from a crosslinguistic perspective, some of the major structural irregularities that characterize poetry in Italian Sign Language and distinguish poetic from nonpoetic texts. Reviews findings of previous studies of signed language poetry, and points out issues that need to be clarified to provide a more accurate description…

  5. Recognition of sign language gestures using neural networks

    Directory of Open Access Journals (Sweden)

    Simon Vamplew

    2007-04-01

    Full Text Available This paper describes the structure and performance of the SLARTI sign language recognition system developed at the University of Tasmania. SLARTI uses a modular architecture consisting of multiple feature-recognition neural networks and a nearest-neighbour classifier to recognise Australian sign language (Auslan hand gestures.

  6. Recognition of sign language gestures using neural networks

    OpenAIRE

    Simon Vamplew

    2007-01-01

    This paper describes the structure and performance of the SLARTI sign language recognition system developed at the University of Tasmania. SLARTI uses a modular architecture consisting of multiple feature-recognition neural networks and a nearest-neighbour classifier to recognise Australian sign language (Auslan) hand gestures.

  7. The Effect of New Technologies on Sign Language Research

    Science.gov (United States)

    Lucas, Ceil; Mirus, Gene; Palmer, Jeffrey Levi; Roessler, Nicholas James; Frost, Adam

    2013-01-01

    This paper first reviews the fairly established ways of collecting sign language data. It then discusses the new technologies available and their impact on sign language research, both in terms of how data is collected and what new kinds of data are emerging as a result of technology. New data collection methods and new kinds of data are…

  8. Selected Lexical Patterns in Saudi Arabian Sign Language

    Science.gov (United States)

    Young, Lesa; Palmer, Jeffrey Levi; Reynolds, Wanette

    2012-01-01

    This combined paper will focus on the description of two selected lexical patterns in Saudi Arabian Sign Language (SASL): metaphor and metonymy in emotion-related signs (Young) and lexicalization patterns of objects and their derivational roots (Palmer and Reynolds). The over-arcing methodology used by both studies is detailed in Stephen and…

  9. Validity of the American Sign Language Discrimination Test

    Science.gov (United States)

    Bochner, Joseph H.; Samar, Vincent J.; Hauser, Peter C.; Garrison, Wayne M.; Searls, J. Matt; Sanders, Cynthia A.

    2016-01-01

    American Sign Language (ASL) is one of the most commonly taught languages in North America. Yet, few assessment instruments for ASL proficiency have been developed, none of which have adequately demonstrated validity. We propose that the American Sign Language Discrimination Test (ASL-DT), a recently developed measure of learners' ability to…

  10. Technology to Support Sign Language for Students with Disabilities

    Science.gov (United States)

    Donne, Vicki

    2013-01-01

    This systematic review of the literature provides a synthesis of research on the use of technology to support sign language. Background research on the use of sign language with students who are deaf/hard of hearing and students with low incidence disabilities, such as autism, intellectual disability, or communication disorders is provided. The…

  11. An Intelligent Computer-Based System for Sign Language Tutoring

    Science.gov (United States)

    Ritchings, Tim; Khadragi, Ahmed; Saeb, Magdy

    2012-01-01

    A computer-based system for sign language tutoring has been developed using a low-cost data glove and a software application that processes the movement signals for signs in real-time and uses Pattern Matching techniques to decide if a trainee has closely replicated a teacher's recorded movements. The data glove provides 17 movement signals from…

  12. Regional Sign Language Varieties in Contact: Investigating Patterns of Accommodation

    Science.gov (United States)

    Stamp, Rose; Schembri, Adam; Evans, Bronwen G.; Cormier, Kearsy

    2016-01-01

    Short-term linguistic accommodation has been observed in a number of spoken language studies. The first of its kind in sign language research, this study aims to investigate the effects of regional varieties in contact and lexical accommodation in British Sign Language (BSL). Twenty-five participants were recruited from Belfast, Glasgow,…

  13. Treatment of diabetic neuropathy in the lower limb: Signs and ...

    African Journals Online (AJOL)

    Diabetic peripheral neuropathy (DPN) is defined as 'the presence of symptoms and/or signs of peripheral nerve dysfunction in people with diabetes after exclusion of other causes: the diagnosis cannot be made without a clinical examination'. In fact, many of these symptoms and signs may precede the onset of diabetes.

  14. Sign epistasis caused by hierarchy within signalling cascades

    NARCIS (Netherlands)

    Nghe, Philippe; Kogenaru, Manjunatha; Tans, S.J.

    2018-01-01

    Sign epistasis is a central evolutionary constraint, but its causal factors remain difficult to predict. Here we use the notion of parameterised optima to explain epistasis within a signalling cascade, and test these predictions in Escherichia coli. We show that sign epistasis arises from the

  15. Linguistic Policies, Linguistic Planning, and Brazilian Sign Language in Brazil

    Science.gov (United States)

    de Quadros, Ronice Muller

    2012-01-01

    This article explains the consolidation of Brazilian Sign Language in Brazil through a linguistic plan that arose from the Brazilian Sign Language Federal Law 10.436 of April 2002 and the subsequent Federal Decree 5695 of December 2005. Two concrete facts that emerged from this existing language plan are discussed: the implementation of bilingual…

  16. The Birth and Rebirth of "Sign Language Studies"

    Science.gov (United States)

    Armstrong, David F.

    2012-01-01

    As most readers of this journal are aware, "Sign Language Studies" ("SLS") served for many years as effectively the only serious scholarly outlet for work in the nascent field of sign language linguistics. Now reaching its 40th anniversary, the journal was founded by William C. Stokoe and then edited by him for the first quarter century of its…

  17. 32 CFR 1605.59 - Signing official papers.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Signing official papers. 1605.59 Section 1605.59 National Defense Other Regulations Relating to National Defense SELECTIVE SERVICE SYSTEM SELECTIVE SERVICE SYSTEM ORGANIZATION Local Boards § 1605.59 Signing official papers. Official papers issued by a local...

  18. 32 CFR 1605.28 - Signing official papers.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Signing official papers. 1605.28 Section 1605.28 National Defense Other Regulations Relating to National Defense SELECTIVE SERVICE SYSTEM SELECTIVE SERVICE SYSTEM ORGANIZATION District Appeal Boards § 1605.28 Signing official papers. Official documents issued...

  19. Structural borrowing: The case of Kenyan Sign Language (KSL) and ...

    African Journals Online (AJOL)

    Kenyan Sign Language (KSL) is a visual gestural language used by members of the deaf community in Kenya. Kiswahili on the other hand is a Bantu language that is used as the national language of Kenya. The two are world's apart, one being a spoken language and the other a signed language and thus their “… basic ...

  20. Question-Answer Pairs in Sign Language of the Netherlands

    NARCIS (Netherlands)

    Kimmelman, V.; Vink, L.

    2017-01-01

    Several sign languages of the world utilize a construction that consists of a question followed by an answer, both of which are produced by the same signer. For American Sign Language, this construction has been analyzed as a discourse-level rhetorical question construction (Hoza et al. 1997), as a

  1. Introduction: Sign Language, Sustainable Development, and Equal Opportunities

    Science.gov (United States)

    De Clerck, Goedele A. M.

    2017-01-01

    This article has been excerpted from "Introduction: Sign Language, Sustainable Development, and Equal Opportunities" (De Clerck) in "Sign Language, Sustainable Development, and Equal Opportunities: Envisioning the Future for Deaf Students" (G. A. M. De Clerck & P. V. Paul (Eds.) 2016). The idea of exploring various…

  2. The Effects of Baby Sign Training on Child Development

    Science.gov (United States)

    Mueller, Vannesa; Sepulveda, Amanda; Rodriguez, Sarai

    2014-01-01

    Although Baby Sign is gaining in popularity, there is a scarcity of research supporting its use. The research that has been conducted is conflicting. In the current study, nine families with children ranging in age from six months to two years and five months participated in a baby sign workshop. A pre--post-test design was used to assess the…

  3. Pregnant Women: Know the Signs and Symptoms of Flu

    Centers for Disease Control (CDC) Podcasts

    This podcast is targeted to pregnant women and explains 1) the signs and symptoms of the flu, and 2) what to do if you experience and signs and symptoms. This podcast is NOT a substitute for the advice of your doctor or health care provider. It is intended for educational purposes only.

  4. The sandwich sign | Mahomed | SA Journal of Radiology

    African Journals Online (AJOL)

    The sandwich sign refers to the sandwiching of mesenteric vessels and fat by enlarged mesenteric nodes on cross-sectional imaging, commonly occurring in lymphoma, but not specific to lymphoma. The sign is radiologically indistinguishable from post-transplant lymphoproliferative disorders. The radiological significance ...

  5. Speed sign detection and recognition by convolutional neural networks

    NARCIS (Netherlands)

    Peemen, M.C.J.; Mesman, B.; Corporaal, H.

    2011-01-01

    From the desire to update the maximum road speed data for navigation devices, a speed sign recognition and detection system is proposed. This system should prevent accidental speeding at roads where the map data is incorrect for example due to construction work. Multiple examples of road sign

  6. Hutchinson's sign as a marker of ocular involvement in HIVpositive ...

    African Journals Online (AJOL)

    Background. A positive Hutchinsonfs sign indicates an increased risk of ocular involvement in herpes zoster ophthalmicus (HZO). We examined the sensitivity of Hutchinsonfs sign as an indicator of ocular involvement in a consecutive series of patients presenting with HZO. Methods. We conducted a descriptive ...

  7. Poetry in South African Sign Language: What is different?

    African Journals Online (AJOL)

    Mary Theresa Biberauer

    The study of literary expression in sign languages has increased over the last twenty .... extensively to express emotion on the part of a character in the narrative. ... township in her non-manual facial expressions while signing manually what is ...

  8. The Distribution of the Sum of Signed Ranks

    Science.gov (United States)

    Albright, Brian

    2012-01-01

    We describe the calculation of the distribution of the sum of signed ranks and develop an exact recursive algorithm for the distribution as well as an approximation of the distribution using the normal. The results have applications to the non-parametric Wilcoxon signed-rank test.

  9. Uncovertebral joint injury in cervical facet dislocation: the headphones sign

    Energy Technology Data Exchange (ETDEWEB)

    Palmieri, Francesco; Cassar-Pullicino, Victor N.; Dell' Atti, Claudia; Lalam, Radhesh K.; Tins, Bernhard J.; Tyrrell, Prudencia N.M.; McCall, Iain W. [Robert Jones and Agnes Hunt Orthopaedic and District Hospital, Department of Radiology, Oswestry, England (United Kingdom)

    2006-06-15

    The purpose of our study is to demonstrate the uncovertebral mal-alignment as a reliable indirect sign of cervical facet joint dislocation. We examined the uncovertebral axial plane alignment of 12 patients with unilateral and bilateral cervical facet joint dislocation (UCFJD and BCFJD, respectively), comparing its frequency to the reverse hamburger bun sign on CT and MR axial images. Of the seven cases with BCFJD, five clearly demonstrated the diagnostic reverse facet joint hamburger bun sign on CT and MR images, but in two cases this sign was not detectable. In the five cases with UCFJD, four demonstrated the reverse hamburger bun sign on both CT and MRI. In one case the reverse hamburger bun sign was not seen adequately with either image modality, but the facet dislocation was identified on sagittal imaging. The uncovertebral mal-alignment was detected in all 12 cases. Normally, the two components of the uncovertebral joint enjoy a concentric relationship that in the axial plane is reminiscent of the relationship of headphones with the wearer's head. We name this appearance the 'headphones' sign. Radiologists should be aware of the headphones sign as a reliable indicator of facet joint dislocation on axial imaging used in the assessment of cervical spine injuries. (orig.)

  10. Warning Signs for Suicide: Theory, Research, and Clinical Applications

    Science.gov (United States)

    Rudd, M. David; Berman, Alan L.; Joiner, Thomas E., Jr.; Nock, Matthew K.; Silverman, Morton M.; Mandrusiak, Michael; Van Orden, Kimberly; Witte, Tracy

    2006-01-01

    The current article addresses the issue of warning signs for suicide, attempting to differentiate the construct from risk factors. In accordance with the characteristic features discussed, a consensus set of warning signs identified by the American Association of Suicidology working group are presented, along with a discussion of relevant clinical…

  11. The signed Roman domatic number of a digraph

    Directory of Open Access Journals (Sweden)

    Seyed Mahmoud Sheikholeslami

    2015-03-01

    Full Text Available Let $D$ be a finite and simple digraph with vertex set $V(D$.A {\\em signed Roman dominating function} on the digraph $D$ isa function  $f:V (D\\longrightarrow \\{-1, 1, 2\\}$ such that$\\sum_{u\\in N^-[v]}f(u\\ge 1$ for every $v\\in V(D$, where $N^-[v]$ consists of $v$ andall inner neighbors of $v$, and every vertex $u\\in V(D$ for which $f(u=-1$ has an innerneighbor $v$ for which $f(v=2$. A set $\\{f_1,f_2,\\ldots,f_d\\}$ of distinct signedRoman dominating functions on $D$ with the property that $\\sum_{i=1}^df_i(v\\le 1$ for each$v\\in V(D$, is called a {\\em signed Roman dominating family} (of functions on $D$. The maximumnumber of functions in a signed Roman dominating family on $D$ is the {\\em signed Roman domaticnumber} of $D$, denoted by $d_{sR}(D$. In this paper we initiate the study of signed Romandomatic number in digraphs and we present some sharp bounds for $d_{sR}(D$. In addition, wedetermine the signed Roman domatic number of some digraphs.  Some of our results are extensionsof well-known properties of the signed Roman domatic number of graphs.

  12. The modified signed likelihood statistic and saddlepoint approximations

    DEFF Research Database (Denmark)

    Jensen, Jens Ledet

    1992-01-01

    SUMMARY: For a number of tests in exponential families we show that the use of a normal approximation to the modified signed likelihood ratio statistic r * is equivalent to the use of a saddlepoint approximation. This is also true in a large deviation region where the signed likelihood ratio...... statistic r is of order √ n. © 1992 Biometrika Trust....

  13. The Equal Sign: Teachers' Knowledge and Students' Misconceptions

    Science.gov (United States)

    Vermeulen, Cornelis; Meyer, Bronwin

    2017-01-01

    This article reports on a study that investigated the extent to which 57 Grade 6 students at a particular school have misconceptions regarding equality, with the equal sign as focus. It also investigated this school's three Grade 5 and 6 teachers' mathematical knowledge for teaching regarding equality, again focusing on the equal sign. The…

  14. The investigation of early warning signs of aggression in forensic

    NARCIS (Netherlands)

    Frans Fluttert; prof Berno van Meijel; Mieke Grypdonck; Bjørkly Stal; Mirjan van Leeuwen

    2012-01-01

    Aims and objectives. The Forensic Early Warning Signs of Aggression Inventory (FESAI) was developed to assist nurses and patients in identifying early warning signs and constructing individual early detection plans (EDP) for the prevention of aggressive incidents. The aims of this research were as

  15. Enhanced CT perfusion cut-off sign in midgut volvulus

    International Nuclear Information System (INIS)

    Henesch, Stephen M.; Jaramillo, Diego M.; Nance, Michael L.

    2006-01-01

    We present a case of malrotation with midgut volvulus in an infant in which we discovered a unique CT sign called the perfusion cut-off sign. We hope this case will help establish this crucial diagnosis in other cases. (orig.)

  16. Enhanced CT perfusion cut-off sign in midgut volvulus

    Energy Technology Data Exchange (ETDEWEB)

    Henesch, Stephen M.; Jaramillo, Diego M. [Children' s Hospital of Philadelphia, Department of Radiology, Philadelphia, PA (United States); Nance, Michael L. [Children' s Hospital of Philadelphia, Department of Surgery, Philadelphia, PA (United States)

    2006-04-15

    We present a case of malrotation with midgut volvulus in an infant in which we discovered a unique CT sign called the perfusion cut-off sign. We hope this case will help establish this crucial diagnosis in other cases. (orig.)

  17. Equity in Education: Signed Language and the Courts

    Science.gov (United States)

    Snoddon, Kristin

    2009-01-01

    This article examines several legal cases in Canada, the USA, and Australia involving signed language in education for Deaf students. In all three contexts, signed language rights for Deaf students have been viewed from within a disability legislation framework that either does not extend to recognizing language rights in education or that…

  18. Computing discrete signed distance fields from triangle meshes

    DEFF Research Database (Denmark)

    Bærentzen, Jakob Andreas; Aanæs, Henrik

    2002-01-01

    A method for generating a discrete, signed 3D distance field is proposed. Distance fields are used in a number of contexts. In particular the popular level set method is usually initialized by a distance field. The main focus of our work is on simplifying the computation of the sign when generating...

  19. The K-Step Spatial Sign Covariance Matrix

    NARCIS (Netherlands)

    Croux, C.; Dehon, C.; Yadine, A.

    2010-01-01

    The Sign Covariance Matrix is an orthogonal equivariant estimator of mul- tivariate scale. It is often used as an easy-to-compute and highly robust estimator. In this paper we propose a k-step version of the Sign Covariance Matrix, which improves its e±ciency while keeping the maximal breakdown

  20. Special Semiotic Characters: What is an Obstacle-Sign?

    Directory of Open Access Journals (Sweden)

    Gary Genosko

    2013-11-01

    Full Text Available This article regains an understudied exposition from Michel Foucault’s Discipline and Punish concerning the nuanced semio-techniques that constitute a punitive city perfused with obstacle-signs. The semiotic import of these signs are explicated and then brought into contemporary focus with regard to their political efficacy in drunk-driving campaigns.

  1. Topics and topic prominence in two sign languages

    NARCIS (Netherlands)

    Kimmelman, V.

    2015-01-01

    In this paper we describe topic marking in Russian Sign Language (RSL) and Sign Language of the Netherlands (NGT) and discuss whether these languages should be considered topic prominent. The formal markers of topics in RSL are sentence-initial position, a prosodic break following the topic, and

  2. Worlds full of signs. Ancient Greek divination in context

    NARCIS (Netherlands)

    Beerden, Kim

    2013-01-01

    This dissertation compares divination in ancient Greece to divinatory practices in Republican Rome and Neo-Assyrian Mesopotamia. Divination is the human production and interpretation of signs which were thought to have come from the supernatural – the signs could be concerned with past, present or

  3. Directing 101.

    Science.gov (United States)

    Pintoff, Ernest

    Providing an introduction to anyone considering directing as a field of study or career, this book takes a broad look at the process of directing and encourages students and professionals alike to look outside of the movie industry for inspiration. Chapters in the book discuss selecting and acquiring material; budgeting and financing; casting and…

  4. Addressee Errors in ATC Communications: The Call Sign Problem

    Science.gov (United States)

    Monan, W. P.

    1983-01-01

    Communication errors involving aircraft call signs were portrayed in reports of 462 hazardous incidents voluntarily submitted to the ASRS during an approximate four-year period. These errors resulted in confusion, disorder, and uncoordinated traffic conditions and produced the following types of operational anomalies: altitude deviations, wrong-way headings, aborted takeoffs, go arounds, runway incursions, missed crossing altitude restrictions, descents toward high terrain, and traffic conflicts in flight and on the ground. Analysis of the report set resulted in identification of five categories of errors involving call signs: (1) faulty radio usage techniques, (2) call sign loss or smearing due to frequency congestion, (3) confusion resulting from similar sounding call signs, (4) airmen misses of call signs leading to failures to acknowledge or readback, and (5) controller failures regarding confirmation of acknowledgements or readbacks. These error categories are described in detail and several associated hazard mitigating measures that might be aken are considered.

  5. Recognition of Indian Sign Language in Live Video

    Science.gov (United States)

    Singha, Joyeeta; Das, Karen

    2013-05-01

    Sign Language Recognition has emerged as one of the important area of research in Computer Vision. The difficulty faced by the researchers is that the instances of signs vary with both motion and appearance. Thus, in this paper a novel approach for recognizing various alphabets of Indian Sign Language is proposed where continuous video sequences of the signs have been considered. The proposed system comprises of three stages: Preprocessing stage, Feature Extraction and Classification. Preprocessing stage includes skin filtering, histogram matching. Eigen values and Eigen Vectors were considered for feature extraction stage and finally Eigen value weighted Euclidean distance is used to recognize the sign. It deals with bare hands, thus allowing the user to interact with the system in natural way. We have considered 24 different alphabets in the video sequences and attained a success rate of 96.25%.

  6. Radiological signs of transient tachypnoea and its differential diagnosis

    International Nuclear Information System (INIS)

    Ponhold, W.

    1981-01-01

    The radiological signs of transient tachypnoea are analysed via a study conducted with 9 children suffering from this disturbance of respiratory adaptation. The main signs are reticulonodular structural increases on both sides and extended vessels with unsharp outlines; to a lesser extent, marked small interlobar fissure, signs of an expiratory disturbance of ventilation, and cardiomegaly are seen also. Differentiation against hyaline membranes is easy and delineation against pneumonic and haemorrhagic infiltrations is usually not at all difficult. However, it may be less easy to differentiate between a relatively severe transient tachypnoea and cardiac left decompensation, since the radiological signs resemble each other. Assessment of a chest X-ray film of the newborn should be evaluated in such cases only if the clinical pattern of signs is known, since this is the only way to obtain adequate radiological clarification. (orig.) [de

  7. Sign epistasis caused by hierarchy within signalling cascades.

    Science.gov (United States)

    Nghe, Philippe; Kogenaru, Manjunatha; Tans, Sander J

    2018-04-13

    Sign epistasis is a central evolutionary constraint, but its causal factors remain difficult to predict. Here we use the notion of parameterised optima to explain epistasis within a signalling cascade, and test these predictions in Escherichia coli. We show that sign epistasis arises from the benefit of tuning phenotypic parameters of cascade genes with respect to each other, rather than from their complex and incompletely known genetic bases. Specifically, sign epistasis requires only that the optimal phenotypic parameters of one gene depend on the phenotypic parameters of another, independent of other details, such as activating or repressing nature, position within the cascade, intra-genic pleiotropy or genotype. Mutational effects change sign more readily in downstream genes, indicating that optimising downstream genes is more constrained. The findings show that sign epistasis results from the inherent upstream-downstream hierarchy between signalling cascade genes, and can be addressed without exhaustive genotypic mapping.

  8. The predictive accuracy of the black hole sign and the spot sign for hematoma expansion in patients with spontaneous intracerebral hemorrhage.

    Science.gov (United States)

    Yu, Zhiyuan; Zheng, Jun; Ma, Lu; Guo, Rui; Li, Mou; Wang, Xiaoze; Lin, Sen; Li, Hao; You, Chao

    2017-09-01

    In patients with spontaneous intracerebral hemorrhage (sICH), hematoma expansion (HE) is associated with poor outcome. Spot sign and black hole sign are neuroimaging predictors for HE. This study was aimed to compare the predictive value of two signs for HE. Within 6 h after onset of sICH, patients were screened for the computed tomography angiography spot sign and the non-contrast computed tomography black hole sign. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of two signs for HE prediction were calculated. The accuracy of two signs in predicting HE was analyzed by receiver-operator analysis. A total of 129 patients were included in this study. Spot sign was identified in 30 (23.3%) patients and black hole sign in 29 (22.5%) patients, respectively. Of 32 patients with HE, spot sign was observed in 19 (59.4%) and black hole sign was found in 14 (43.8%). The occurrence of black hole sign was significantly associated with spot sign (P black hole sign for predicting HE were 43.75, 84.54, 48.28, and 82.00%, respectively. The area under the curve was 0.740 for spot sign and 0.641 for black hole sign. (P = 0.228) Both spot sign and black hole sign appeared to have good predictive value for HE, and spot sign seemed to be a better predictor.

  9. The "sign of groove", a new cutaneous sign of internal malignancy

    Directory of Open Access Journals (Sweden)

    Nair Pradeep

    2007-01-01

    Full Text Available A 36-year-old young male with multiple heterosexual contacts presented with bilateral inguinal bubo and the classical "sign of groove". A diagnosis of lymphogranuloma venereum (LGV was made and a three-week course of doxycycline was given. Lack of response prompted us to investigate further. A biopsy of the bubo was consistent with non-Hodgkin′s lymphoma (NHL. Immunohistochemistry of the lymph node done at the Regional Cancer Center (RCC, Trivandrum, confirmed the diagnosis as NHL of diffuse large B-cell type. The second patient, a 32-year-old male with two unprotected heterosexual contacts presented with a left-sided inguinal bubo of six weeks duration. An empirical course of doxycycline was given even though investigations did not reveal any STI. Lack of response prompted us to do a lymph node biopsy, which was consistent with NHL, which later with immunohistochemistry was confirmed as NHL, diffuse large cell type. We are reporting here that the "sign of groove" is not specific for LGV as thought earlier, but can occur in NHL also.

  10. "Meniscus Sign" to Identify the Lenticule Edge in Small-Incision Lenticule Extraction.

    Science.gov (United States)

    Titiyal, Jeewan S; Kaur, Manpreet; Brar, Anand S; Falera, Ruchita

    2018-06-01

    To describe our technique of lenticule edge identification in small-incision lenticule extraction using the "meniscus sign" to prevent lenticule misdissection. Femtosecond laser application for small-incision lenticule extraction was performed. A "double ring" was visible, signifying the edge of the cap cut (outer ring) and lenticule cut (inner ring). The anterior and posterior lamellar planes were delineated in 2 different directions. During creation of the posterior lamellar channel, the lenticule edge was slightly pushed away from the surgeon to create a gap between the inner ring (diameter of the lenticule cut) and the lenticule edge. The lenticule edge assumed a frilled wavy appearance, and the meniscus sign was observed as a gap between the lenticule edge and the inner ring. The meniscus-shaped gap served as a landmark to identify the lenticule edge, and the relationship between the frilled lenticule edge and surgical instruments further acted as a guide to identify the correct plane of dissection. This technique was successfully undertaken in 50 eyes of 25 patients. The meniscus sign was observed in all cases, and no case had cap lenticular adhesions. The meniscus sign helps to identify the lenticule edge and correct dissection planes and provides a visual landmark during the entire surgical procedure.

  11. Nystagmus-based approach to vertebrobasilar stroke presenting as vertigo without initial neurologic signs.

    Science.gov (United States)

    Kim, Min-Beom; Boo, Sung Hyun; Ban, Jae Ho

    2013-01-01

    We aimed to investigate the clinical courses and common nystagmus of isolated vertigo patients with vertebrobasilar stroke. The patients who presented with isolated acute spontaneous vertigo with spontaneous nystagmus (acute vestibular syndrome) at the Emergency Department were retrospectively analyzed. They were referred to the Otolaryngology Department due to the absence of neurologic signs or even of imaging abnormalities after the initial examination at the Emergency Department. Various clinical features, including presenting symptoms, delayed neurologic signs, the site of infarction, and videonystagmographic (VNG) findings were analyzed. Of the 468 cases of acute vestibular syndrome, 23 (4.9%) cases of radiologically proven vertebrobasilar stroke were identified. Of the 23 patients, 17 (74%) showed aggravation of vertigo or delayed neurologic signs during the admission. In the analysis of VNG, 11 (48%) cases of direction-changing gaze-evoked nystagmus, 7 (30%) cases of fixation failure in the caloric test, 6 (27%) cases of periodic alternating nystagmus, and 4 (17%) cases of atypical head-shaking nystagmus were presented. Stroke occurred in the cerebellum (n=18, 78%), medulla (n=4, 17%), and pons (n=1, 4%). In the early stage of vertebrobasilar stroke, an accurate diagnosis was difficult in the Emergency Department even though a radiologic study was performed, but various VNG abnormalities and delayed neurologic signs could help to diagnose whether the origin is central or not. Copyright © 2013 S. Karger AG, Basel.

  12. Rural Tanzanian women's awareness of danger signs of obstetric complications

    Directory of Open Access Journals (Sweden)

    Lindmark Gunilla

    2009-03-01

    Full Text Available Abstract Background Awareness of the danger signs of obstetric complications is the essential first step in accepting appropriate and timely referral to obstetric and newborn care. The objectives of this study were to assess women's awareness of danger signs of obstetric complications and to identify associated factors in a rural district in Tanzania. Methods A total of 1118 women who had been pregnant in the past two years were interviewed. A list of medically recognized potentially life threatening obstetric signs was obtained from the responses given. Chi- square test was used to determine associations between categorical variables and multivariate logistic regression analysis was used to identify factors associated with awareness of obstetric danger signs. Results More than 98% of the women attended antenatal care at least once. Half of the women knew at least one obstetric danger sign. The percentage of women who knew at least one danger sign during pregnancy was 26%, during delivery 23% and after delivery 40%. Few women knew three or more danger signs. According to multivariate logistic regression analysis having secondary education or more increased the likelihood of awareness of obstetric danger signs six-fold (OR = 5.8; 95% CI: 1.8–19 in comparison with no education at all. The likelihood to have more awareness increased significantly by increasing age of the mother, number of deliveries, number of antenatal visits, whether the delivery took place at a health institution and whether the mother was informed of having a risks/complications during antenatal care. Conclusion Women had low awareness of danger signs of obstetric complications. We recommend the following in order to increase awareness of danger signs of obstetrical complications: to improve quality of counseling and involving other family members in antenatal and postnatal care, to use radio messages and educational sessions targeting the whole community and to intensify

  13. Pearl necklace sign in diabetic macular edema: Evaluation and significance

    Directory of Open Access Journals (Sweden)

    Kshirasagar Ajay

    2016-01-01

    Full Text Available Purpose: (1 The purpose of this study was to describe significance and prevalence of the newly reported pearl necklace spectral domain optical coherence tomography (SDOCT sign, in diabetic macular edema (DMO, (2 to track the course of this sign over a period of at least 10 months. Materials and Methods: The pearl necklace SDOCT sign refers to hyperreflective dots in a contiguous ring around the inner wall of cystoid spaces in the retina, recently described for the first time in 21 eyes with chronic exudative maculopathy. A retrospective analysis was performed of SDOCT images of all patients presenting to the DMO referral clinic of a tertiary eye care center, over a period of 24 months. Images of patients displaying this sign were sequentially analyzed for at least 10 months to track the course of the sign. Results: Thirty-five eyes of 267 patients (13.1% were found to display the pearl necklace sign. Twenty-eight eyes responded to intravitreal ranibizumab treatment with resolution of edema. In 21 eyes, the dots coalesced to form a clump, visible in the infrared fundus photograph as hard exudates; in seven eyes, dots disappeared without leaving visible exudates. In three eyes, the sign was seen in subfoveal cystoid spaces, with subsequent development of hard exudates, and drop in visual acuity of 20 letters or more. Conclusion: Pearl necklace SDOCT sign is not infrequent in DMO. This sign is a precursor to hard exudates in the majority of cases. If this sign is seen subfoveally, drop in visual acuity can be expected, despite treatment.

  14. Improvement of the performance of animal crossing warning signs.

    Science.gov (United States)

    Khalilikhah, Majid; Heaslip, Kevin

    2017-09-01

    Animal-vehicle collisions (AVCs) can result in serious injury and death to drivers, animals' death, and significant economic costs. However, the cost effectiveness of the majority of AVC mitigation measures is a significant issue. A mobile-based data collection effort was deployed to measure signs under the Utah Department of Transportation's (UDOT) jurisdiction. The crash data were obtained from the UDOT risk management database. ArcGIS was employed to link these two data sets and extract animal-related crashes and signs. An algorithm was developed to process the data and identify AVCs that occurred within sign recognition distance. Kernel density estimation (KDE) technique was applied to identify potential crash hotspots. Only 2% of AVCs occurred within the recognition distance of animal crossing signs. Almost 58% of animal-related crashes took place on the Interstate and U.S. highways, wherein only 30% of animal crossing signs were installed. State routes with a higher average number of signs experienced a lower number of AVCs per mile. The differences between AVCs that occurred within versus outside of sign recognition distance were not statistically significant regarding crash severity, time of crash, weather condition, driver age, vehicle speed, and type of animal. It is more likely that drivers become accustomed to deer crossing signs than cow signs. Based on the historical crash data and landscape structure, with attention given to the low cost safety improvement methods, a combination of different types of AVC mitigation measures can be developed to reduce the number of animal-related crashes. After an in-depth analysis of AVC data, warning traffic signs, coupled with other low cost mitigation countermeasures can be successfully placed in areas with higher priority or in critical areas. Practical applications: The findings of this study assist transportation agencies in developing more efficient mitigation measures against AVCs. Copyright © 2017 National

  15. Development of a model performance-based sign sheeting specification based on the evaluation of nighttime traffic signs using legibility and eye-tracker data.

    Science.gov (United States)

    2010-09-01

    This project focused on the evaluation of traffic sign sheeting performance in terms of meeting the nighttime : driver needs. The goal was to develop a nighttime driver needs specification for traffic signs. The : researchers used nighttime sign legi...

  16. Generation of Signs within Semantic and Phonological Categories: Data from Deaf Adults and Children Who Use American Sign Language

    Science.gov (United States)

    Beal-Alvarez, Jennifer S.; Figueroa, Daileen M.

    2017-01-01

    Two key areas of language development include semantic and phonological knowledge. Semantic knowledge relates to word and concept knowledge. Phonological knowledge relates to how language parameters combine to create meaning. We investigated signing deaf adults' and children's semantic and phonological sign generation via one-minute tasks,…

  17. Examination of Sign Language Education According to the Opinions of Members from a Basic Sign Language Certification Program

    Science.gov (United States)

    Akmese, Pelin Pistav

    2016-01-01

    Being hearing impaired limits one's ability to communicate in that it affects all areas of development, particularly speech. One of the methods the hearing impaired use to communicate is sign language. This study, a descriptive study, intends to examine the opinions of individuals who had enrolled in a sign language certification program by using…

  18. Senales de Trafico. Ingles-Espanol = Traffic Signs. English-Spanish [and] English-Spanish Road Signs for American Tourists.

    Science.gov (United States)

    Grosse, Philip

    Two English/Spanish bilingual glossaries define words and phrases found on traffic signs. The first is an extensive alphabetical checklist of sign messages, listed in English with translations in Spanish. Some basic traffic and speed limit rules are included. The second volume, in Spanish-to-English form, is a pocket version designed for American…

  19. The Influence of Deaf People's Dual Category Status on Sign Language Planning: The British Sign Language (Scotland) Act (2015)

    Science.gov (United States)

    De Meulder, Maartje

    2017-01-01

    Through the British Sign Language (Scotland) Act, British Sign Language (BSL) was given legal status in Scotland. The main motives for the Act were a desire to put BSL on a similar footing with Gaelic and the fact that in Scotland, BSL signers are the only group whose first language is not English who must rely on disability discrimination…

  20. 78 FR 60376 - Proposed Collection: Direct Deposit Sign-Up Form

    Science.gov (United States)

    2013-10-01

    ..., as required by the Paperwork Reduction Act of 1995, Public Law 104-13 (44 U.S.C. 3506(c)(2)(A... Fiscal Service, Bruce A. Sharp, 200 Third Street A4-A, Parkersburg, WV 26106-1328, or bruce.sharp@bpd.... Sharp, Bureau of the Fiscal Service, 200 Third Street A4-A, Parkersburg, WV 26106-1328, (304) 480- 8150...