Anomalies

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Marcelo Aoki - One of the best experts on this subject based on the ideXlab platform.

  • Machine Vision System
    internal, 2018
    Co-Authors: Marcelo Aoki
    Abstract:

    a part’s known features, anomalies, and classes — much like a human inspector would be trained. A supervised training period teaches the system to recognize explicit … of images, and its neural networks localize parts, extract anomalies, and classify them. image2020-9-30_16-12-49.png Figure 3 - Cognex Vidi training

Marc S Williams - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative analysis of limb Anomalies in CHARGE syndrome: correlation with diagnosis and characteristic CHARGE Anomalies.
    American Journal of Medical Genetics Part A, 2009
    Co-Authors: Katharine E Brock, Michelle A Mathiason, Brenda L Rooney, Marc S Williams
    Abstract:

    CHARGE syndrome was initially not thought to involve the limb. Several subsequent reports have shown that limb Anomalies are not uncommon. To date, there have been no quantitative studies of limb Anomalies in CHARGE syndrome. This study was designed to answer several questions: Do CHARGE patients with limb Anomalies represent a subgroup within CHARGE syndrome? Are there correlations between certain CHARGE syndrome Anomalies and limb Anomalies? Are there differences between the two genders and associated limb Anomalies? Are certain types of limb Anomalies seen with increased frequency in CHARGE syndrome? All described patients were categorized utilizing the AI/GEN Model 2 Criteria proposed by Mitchell [1985a: J Med Syst 9:425–435]. Patients with chromosomal Anomalies or familial CHARGE were excluded, as were patients with inadequate clinical descriptions, and patients in large series where individual characteristics could not be ascertained. Multivariate analysis was performed. One hundred seventy two patients with definite or probable CHARGE syndrome were analyzed. Sixty-four (37.2%) of these patients have at least one limb anomaly. Significant positive associations were seen between limb Anomalies and ocular coloboma, urinary tract malformations, and genital Anomalies. These associations were not significant when the definite or probable patients were analyzed separately, with the exception of genital Anomalies in definite CHARGE. Gender differences were also identified. Females with tracheoesophageal fistula/esophageal atresia, or genital Anomalies were more likely to have limb Anomalies, while some female subgroups had positive associations between urinary tract malformations, or choanal atresia and limb Anomalies. Negative associations were also seen with sensorineural hearing loss and facial paralysis. In contrast, males showed a positive association between coloboma and limb Anomalies, while subgroup analysis identified positive associations with DiGeorge sequence or genital Anomalies and limb Anomalies. Limb Anomalies are present in just over one-third of CHARGE syndrome patients. Limb Anomalies are seen more frequently in association with certain CHARGE Anomalies, and these associations show gender differences. There is not a common limb anomaly seen in CHARGE syndrome. © 2003 Wiley-Liss, Inc.

  • Quantitative analysis of limb Anomalies in CHARGE syndrome: correlation with diagnosis and characteristic CHARGE Anomalies.
    American journal of medical genetics. Part A, 2003
    Co-Authors: Katharine E Brock, Michelle A Mathiason, Brenda L Rooney, Marc S Williams
    Abstract:

    CHARGE syndrome was initially not thought to involve the limb. Several subsequent reports have shown that limb Anomalies are not uncommon. To date, there have been no quantitative studies of limb Anomalies in CHARGE syndrome. This study was designed to answer several questions: Do CHARGE patients with limb Anomalies represent a subgroup within CHARGE syndrome? Are there correlations between certain CHARGE syndrome Anomalies and limb Anomalies?Are there differences between the two genders and associated limb Anomalies? Are certain types of limb Anomalies seen with increased frequency in CHARGE syndrome? All described patients were categorized utilizing the AI/GEN Model 2 Criteria proposed by Mitchell [1985a: J Med Syst 9:425-435]. Patients with chromosomal Anomalies or familial CHARGE were excluded, as were patients with inadequate clinical descriptions, and patients in large series where individual characteristics could not be ascertained. Multivariate analysis was performed. One hundred seventy two patients with definite or probable CHARGE syndrome were analyzed. Sixty-four (37.2%) of these patients have at least one limb anomaly. Significant positive associations were seen between limb Anomalies and ocular coloboma, urinary tract malformations, and genital Anomalies. These associations were not significant when the definite or probable patients were analyzed separately, with the exception of genital Anomalies in definite CHARGE. Gender differences were also identified. Females with tracheoesophageal fistula/esophageal atresia, or genital Anomalies were more likely to have limb Anomalies, while some female subgroups had positive associations between urinary tract malformations, or choanal atresia and limb Anomalies. Negative associations were also seen with sensorineural hearing loss and facial paralysis. In contrast, males showed a positive association between coloboma and limb Anomalies, while subgroup analysis identified positive associations with DiGeorge sequence or genital Anomalies and limb Anomalies. Limb Anomalies are present in just over one-third of CHARGE syndrome patients. Limb Anomalies are seen more frequently in association with certain CHARGE Anomalies, and these associations show gender differences. There is not a common limb anomaly seen in CHARGE syndrome.

Katharine E Brock - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative analysis of limb Anomalies in CHARGE syndrome: correlation with diagnosis and characteristic CHARGE Anomalies.
    American Journal of Medical Genetics Part A, 2009
    Co-Authors: Katharine E Brock, Michelle A Mathiason, Brenda L Rooney, Marc S Williams
    Abstract:

    CHARGE syndrome was initially not thought to involve the limb. Several subsequent reports have shown that limb Anomalies are not uncommon. To date, there have been no quantitative studies of limb Anomalies in CHARGE syndrome. This study was designed to answer several questions: Do CHARGE patients with limb Anomalies represent a subgroup within CHARGE syndrome? Are there correlations between certain CHARGE syndrome Anomalies and limb Anomalies? Are there differences between the two genders and associated limb Anomalies? Are certain types of limb Anomalies seen with increased frequency in CHARGE syndrome? All described patients were categorized utilizing the AI/GEN Model 2 Criteria proposed by Mitchell [1985a: J Med Syst 9:425–435]. Patients with chromosomal Anomalies or familial CHARGE were excluded, as were patients with inadequate clinical descriptions, and patients in large series where individual characteristics could not be ascertained. Multivariate analysis was performed. One hundred seventy two patients with definite or probable CHARGE syndrome were analyzed. Sixty-four (37.2%) of these patients have at least one limb anomaly. Significant positive associations were seen between limb Anomalies and ocular coloboma, urinary tract malformations, and genital Anomalies. These associations were not significant when the definite or probable patients were analyzed separately, with the exception of genital Anomalies in definite CHARGE. Gender differences were also identified. Females with tracheoesophageal fistula/esophageal atresia, or genital Anomalies were more likely to have limb Anomalies, while some female subgroups had positive associations between urinary tract malformations, or choanal atresia and limb Anomalies. Negative associations were also seen with sensorineural hearing loss and facial paralysis. In contrast, males showed a positive association between coloboma and limb Anomalies, while subgroup analysis identified positive associations with DiGeorge sequence or genital Anomalies and limb Anomalies. Limb Anomalies are present in just over one-third of CHARGE syndrome patients. Limb Anomalies are seen more frequently in association with certain CHARGE Anomalies, and these associations show gender differences. There is not a common limb anomaly seen in CHARGE syndrome. © 2003 Wiley-Liss, Inc.

  • Quantitative analysis of limb Anomalies in CHARGE syndrome: correlation with diagnosis and characteristic CHARGE Anomalies.
    American journal of medical genetics. Part A, 2003
    Co-Authors: Katharine E Brock, Michelle A Mathiason, Brenda L Rooney, Marc S Williams
    Abstract:

    CHARGE syndrome was initially not thought to involve the limb. Several subsequent reports have shown that limb Anomalies are not uncommon. To date, there have been no quantitative studies of limb Anomalies in CHARGE syndrome. This study was designed to answer several questions: Do CHARGE patients with limb Anomalies represent a subgroup within CHARGE syndrome? Are there correlations between certain CHARGE syndrome Anomalies and limb Anomalies?Are there differences between the two genders and associated limb Anomalies? Are certain types of limb Anomalies seen with increased frequency in CHARGE syndrome? All described patients were categorized utilizing the AI/GEN Model 2 Criteria proposed by Mitchell [1985a: J Med Syst 9:425-435]. Patients with chromosomal Anomalies or familial CHARGE were excluded, as were patients with inadequate clinical descriptions, and patients in large series where individual characteristics could not be ascertained. Multivariate analysis was performed. One hundred seventy two patients with definite or probable CHARGE syndrome were analyzed. Sixty-four (37.2%) of these patients have at least one limb anomaly. Significant positive associations were seen between limb Anomalies and ocular coloboma, urinary tract malformations, and genital Anomalies. These associations were not significant when the definite or probable patients were analyzed separately, with the exception of genital Anomalies in definite CHARGE. Gender differences were also identified. Females with tracheoesophageal fistula/esophageal atresia, or genital Anomalies were more likely to have limb Anomalies, while some female subgroups had positive associations between urinary tract malformations, or choanal atresia and limb Anomalies. Negative associations were also seen with sensorineural hearing loss and facial paralysis. In contrast, males showed a positive association between coloboma and limb Anomalies, while subgroup analysis identified positive associations with DiGeorge sequence or genital Anomalies and limb Anomalies. Limb Anomalies are present in just over one-third of CHARGE syndrome patients. Limb Anomalies are seen more frequently in association with certain CHARGE Anomalies, and these associations show gender differences. There is not a common limb anomaly seen in CHARGE syndrome.

Adel Bilal - One of the best experts on this subject based on the ideXlab platform.

  • Lectures on Anomalies
    2008
    Co-Authors: Adel Bilal
    Abstract:

    These lectures on Anomalies are relatively self-contained and intended for graduate students who are familiar with the basics of quantum field theory. We begin with several derivations of the abelian anomaly: anomalous transformation of the measure, explicit computation of the triangle Feynman diagram, relation to the index of the Euclidean Dirac operator. The chiral (non-abelian) gauge anomaly is derived by evaluating the anomalous triangle diagram with three non-abelian gauge fields coupled to a chiral fermion. We discuss in detail the relation between anomaly, current non-conservation and non-invariance of the effective action, with special emphasis on the derivation of the anomalous Slavnov-Taylor/Ward identities. We show why Anomalies always are finite and local. A general characterization is given of gauge groups and fermion representations which may lead to Anomalies in four dimensions, and the issue of anomaly cancellation is discussed, in particular the classical example of the standard model. Then, we move to more formal developments and arbitrary even dimensions. After introducing a few basic notions of differential geometry, in particular characteristic classes, we derive the descent equations. We prove the Wess-Zumino consistency condition and show that relevant Anomalies correspond to BRST cohomologies at ghost number one. We discuss why and how Anomalies are related to characteristic classes in two more dimensions and outline their computation in terms of the index of an appropriate Dirac operator. Finally we derive the gauge and gravitational Anomalies in arbitrary even dimensions from the appropriate index and explain the anomaly cancellations in ten-dimensional IIB supergravity and in type I and heterotic superstrings.

  • Lectures on Anomalies
    arXiv: High Energy Physics - Theory, 2008
    Co-Authors: Adel Bilal
    Abstract:

    These lectures on Anomalies are relatively self-contained and intended for graduate students in theoretical high-energy physics who are familiar with the basics of quantum eld theory. More elaborate concepts are introduced when needed. We begin with several derivations of the abelian anomaly: anomalous transformation of the measure, explicit computation of the triangle Feynman diagram, relation to the index of the Euclidean Dirac operator. The chiral (non-abelian) gauge anomaly is derived by evaluating the anomalous triangle diagram with three non-abelian gauge elds coupled to a chiral fermion. We discuss in detail the relation between anomaly, current non-conservation and non-invariance of the eective action, with special emphasis on the derivation of the anomalous Slavnov-Taylor/Ward identities. We show why Anomalies always are nite and local. A general characterization is given of gauge groups and fermion representations which may lead to Anomalies in four dimensions, and the issue of anomaly cancellation is discussed, in particular the classical example of the standard model. Then, in a second part, we move to more formal developments and arbitrary even dimensions. After introducing a few basic notions of dierential geometry, in particular the gauge bundle and characteristic classes, we derive the descent equations. We prove the Wess-Zumino consistency condition and show that relevant Anomalies correspond to BRST cohomologies at ghost number one. We discuss why and how Anomalies are related via the descent equations to characteristic classes in two more dimensions. The computation of the Anomalies in terms of the index of an appropriate Dirac operator in these higher dimensions is outlined. Finally we derive the gauge and gravitational Anomalies in arbitrary even dimensions from the appropriate index and explain the anomaly cancellations in ten-dimensional IIB supergravity and in the eld theory limits of type I and heterotic superstrings.

Brenda L Rooney - One of the best experts on this subject based on the ideXlab platform.

  • Quantitative analysis of limb Anomalies in CHARGE syndrome: correlation with diagnosis and characteristic CHARGE Anomalies.
    American Journal of Medical Genetics Part A, 2009
    Co-Authors: Katharine E Brock, Michelle A Mathiason, Brenda L Rooney, Marc S Williams
    Abstract:

    CHARGE syndrome was initially not thought to involve the limb. Several subsequent reports have shown that limb Anomalies are not uncommon. To date, there have been no quantitative studies of limb Anomalies in CHARGE syndrome. This study was designed to answer several questions: Do CHARGE patients with limb Anomalies represent a subgroup within CHARGE syndrome? Are there correlations between certain CHARGE syndrome Anomalies and limb Anomalies? Are there differences between the two genders and associated limb Anomalies? Are certain types of limb Anomalies seen with increased frequency in CHARGE syndrome? All described patients were categorized utilizing the AI/GEN Model 2 Criteria proposed by Mitchell [1985a: J Med Syst 9:425–435]. Patients with chromosomal Anomalies or familial CHARGE were excluded, as were patients with inadequate clinical descriptions, and patients in large series where individual characteristics could not be ascertained. Multivariate analysis was performed. One hundred seventy two patients with definite or probable CHARGE syndrome were analyzed. Sixty-four (37.2%) of these patients have at least one limb anomaly. Significant positive associations were seen between limb Anomalies and ocular coloboma, urinary tract malformations, and genital Anomalies. These associations were not significant when the definite or probable patients were analyzed separately, with the exception of genital Anomalies in definite CHARGE. Gender differences were also identified. Females with tracheoesophageal fistula/esophageal atresia, or genital Anomalies were more likely to have limb Anomalies, while some female subgroups had positive associations between urinary tract malformations, or choanal atresia and limb Anomalies. Negative associations were also seen with sensorineural hearing loss and facial paralysis. In contrast, males showed a positive association between coloboma and limb Anomalies, while subgroup analysis identified positive associations with DiGeorge sequence or genital Anomalies and limb Anomalies. Limb Anomalies are present in just over one-third of CHARGE syndrome patients. Limb Anomalies are seen more frequently in association with certain CHARGE Anomalies, and these associations show gender differences. There is not a common limb anomaly seen in CHARGE syndrome. © 2003 Wiley-Liss, Inc.

  • Quantitative analysis of limb Anomalies in CHARGE syndrome: correlation with diagnosis and characteristic CHARGE Anomalies.
    American journal of medical genetics. Part A, 2003
    Co-Authors: Katharine E Brock, Michelle A Mathiason, Brenda L Rooney, Marc S Williams
    Abstract:

    CHARGE syndrome was initially not thought to involve the limb. Several subsequent reports have shown that limb Anomalies are not uncommon. To date, there have been no quantitative studies of limb Anomalies in CHARGE syndrome. This study was designed to answer several questions: Do CHARGE patients with limb Anomalies represent a subgroup within CHARGE syndrome? Are there correlations between certain CHARGE syndrome Anomalies and limb Anomalies?Are there differences between the two genders and associated limb Anomalies? Are certain types of limb Anomalies seen with increased frequency in CHARGE syndrome? All described patients were categorized utilizing the AI/GEN Model 2 Criteria proposed by Mitchell [1985a: J Med Syst 9:425-435]. Patients with chromosomal Anomalies or familial CHARGE were excluded, as were patients with inadequate clinical descriptions, and patients in large series where individual characteristics could not be ascertained. Multivariate analysis was performed. One hundred seventy two patients with definite or probable CHARGE syndrome were analyzed. Sixty-four (37.2%) of these patients have at least one limb anomaly. Significant positive associations were seen between limb Anomalies and ocular coloboma, urinary tract malformations, and genital Anomalies. These associations were not significant when the definite or probable patients were analyzed separately, with the exception of genital Anomalies in definite CHARGE. Gender differences were also identified. Females with tracheoesophageal fistula/esophageal atresia, or genital Anomalies were more likely to have limb Anomalies, while some female subgroups had positive associations between urinary tract malformations, or choanal atresia and limb Anomalies. Negative associations were also seen with sensorineural hearing loss and facial paralysis. In contrast, males showed a positive association between coloboma and limb Anomalies, while subgroup analysis identified positive associations with DiGeorge sequence or genital Anomalies and limb Anomalies. Limb Anomalies are present in just over one-third of CHARGE syndrome patients. Limb Anomalies are seen more frequently in association with certain CHARGE Anomalies, and these associations show gender differences. There is not a common limb anomaly seen in CHARGE syndrome.