Puerperal febrile complications and cervical flora following elective manual exploration of the uterus

1981 ◽  
Vol 139 (3) ◽  
pp. 320-323 ◽  
Author(s):  
Eduardo Berger ◽  
Martin S. Gillieson ◽  
Jack H. Walters
Keyword(s):  
Manual Exploration

scholarly journals Fractional ridge regression: a fast, interpretable reparameterization of ridge regression

GigaScience ◽  
2020 ◽  
Vol 9 (12) ◽  
Author(s):  
Ariel Rokem ◽  
Kendrick Kay
Keyword(s):  
Ridge Regression ◽  
Large Scale ◽  
Imaging Data ◽  
Regularization Technique ◽  
Large Scale Data ◽  
Novel Approach ◽  
Manual Exploration ◽  
L2 Norm ◽  
Software Implementations ◽  
Brain Imaging Data

Abstract Background Ridge regression is a regularization technique that penalizes the L2-norm of the coefficients in linear regression. One of the challenges of using ridge regression is the need to set a hyperparameter (α) that controls the amount of regularization. Cross-validation is typically used to select the best α from a set of candidates. However, efficient and appropriate selection of α can be challenging. This becomes prohibitive when large amounts of data are analyzed. Because the selected α depends on the scale of the data and correlations across predictors, it is also not straightforwardly interpretable. Results The present work addresses these challenges through a novel approach to ridge regression. We propose to reparameterize ridge regression in terms of the ratio γ between the L2-norms of the regularized and unregularized coefficients. We provide an algorithm that efficiently implements this approach, called fractional ridge regression, as well as open-source software implementations in Python and matlab (https://github.com/nrdg/fracridge). We show that the proposed method is fast and scalable for large-scale data problems. In brain imaging data, we demonstrate that this approach delivers results that are straightforward to interpret and compare across models and datasets. Conclusion Fractional ridge regression has several benefits: the solutions obtained for different γ are guaranteed to vary, guarding against wasted calculations; and automatically span the relevant range of regularization, avoiding the need for arduous manual exploration. These properties make fractional ridge regression particularly suitable for analysis of large complex datasets.

Infants' Manual Exploration of Pictorial Objects Varying in Realism

Infancy ◽  
2003 ◽  
Vol 4 (1) ◽  
pp. 141-156 ◽  
Author(s):  
Sophia L. Pierroutsakos ◽  
Judy S. DeLoache
Keyword(s):  
Manual Exploration

Restricted Access: Exploratory Procedures and Object Properties

1999 ◽  
Author(s):  
M. Sile O’Modhrain
Keyword(s):  
Pilot Study ◽  
Haptic Interface ◽  
Sorting Task ◽  
Restricted Access ◽  
Preliminary Results ◽  
Object Properties ◽  
Manual Exploration ◽  
The Cost ◽  
Exploratory Procedures ◽  
Interface Designs

Abstract In this paper, we present the results of a pilot study that examines whether restricting how people can explore objects haptically effects the object attributes they notice and the efficiency with which they can perform a simple sorting task. 25 observers were each randomly assigned to one of five exploration conditions: two hands (the control), one hand, thumb/forefinger, one finger, or probe. All observers performed a series of two-bin sorts. Stimuli were eight multi-propertied cubes which could be divided into two equal bins according to three properties: size, texture, and compliance. Preliminary results indicate that the restrictions on manual exploration we imposed affected both the exploratory procedures observers chose to use and the efficiency with which they could perform the task. Haptic interface designs inevitably restrict the exploratory procedures available to the user. This study attempts to determine the cost of these restrictions on the efficiency with which a user can explore multi-propertied objects in a virtual or telepresence environment.

scholarly journals Sensorimotor Integration in S2, PV, and Parietal Rostroventral Areas of the Human Sylvian Fissure

2007 ◽  
Vol 97 (2) ◽  
pp. 1288-1297 ◽  
Author(s):  
Leighton B. Hinkley ◽  
Leah A. Krubitzer ◽  
Srikantan S. Nagarajan ◽  
Elizabeth A. Disbrow
Keyword(s):  
Tactile Stimulus ◽  
Region Of Interest ◽  
Sylvian Fissure ◽  
Fmri Data ◽  
Movement Condition ◽  
Manual Exploration ◽  
Movement Component ◽  
The Right ◽  
Proprioceptive Inputs ◽  
Similar Location

We explored cortical fields on the upper bank of the Sylvian fissure using functional magnetic resonance imaging (fMRI) and magnetoencephalography (MEG) to measure responses to two stimulus conditions: a tactile stimulus applied to the right hand and a tactile stimulus with an additional movement component. fMRI data revealed bilateral activation in S2/PV in response to tactile stimulation alone and source localization of MEG data identified a peak latency of 122 ms in a similar location. During the tactile and movement condition, fMRI revealed bilateral activation of S2/PV and an anterior field, while MEG data contained one source at a location identical to the tactile-only condition with a latency of 96 ms and a second rostral source with a longer latency (136 ms). Furthermore, Region-of-interest analysis of fMRI data identified increased bilateral activation in S2/PV and the rostral area in the tactile and movement condition compared with the tactile only condition. An area of cortex immediately rostral to S2/PV in monkeys has been called the parietal rostroventral area (PR). Based on location, latency, and conditions under which this field was active, we have termed the rostral area of human cortex PR as well. These findings indicate that humans, like non-human primates, have a cortical field rostral to PV that processes proprioceptive inputs, both S2/PV and PR play a role in somatomotor integration necessary for manual exploration and object discrimination, and there is a temporal hierarchy of processing with S2/PV active prior to PR.

Tactile Display for Virtual Shape Rendering Based on Servo Actuated Modules

2015 ◽  
Author(s):  
Alessandro Mansutti ◽  
Mario Covarrubias Rodriguez ◽  
Monica Bordegoni ◽  
Umberto Cugini
Keyword(s):  
Degrees Of Freedom ◽  
Low Cost ◽  
Tactile Display ◽  
Elastic Behaviour ◽  
Maximum Point ◽  
Surface Rendering ◽  
Aesthetic Quality ◽  
High Performing ◽  
Manual Exploration ◽  
The Aesthetic

This paper presents a new concept of a desktop tangible shape display for virtual surface rendering. The proposed system is able to represent in the real environment the shape of a digital model of a product, which can be explored naturally through a free-hand interaction. Aim of the shape display is to allow product designers to explore the rendered surface through a continuous touch of curves lying on the product shape. Ideally, the designer selects curves, which can be considered as style features of the shape, on the shape surface, and evaluates the aesthetic quality of these curves by manual exploration. In order to physically represent these selected curves, a flexible surface is modelled by means of servo-actuated modules controlling a physical deforming strip. The behaviour of the strip is controlled by acting on the position and rotations of a discrete number of control sectors. Each control sector is controlled by a module, which is based on an absolute positioning approach and equipped with five degrees of freedom. The developed system is able to manage the elastic behaviour of the strip in terms of bending, twisting and local tangency. The tangency control allows us to manage the local tangency of the strip to the rendered trajectory, thus increasing the accuracy of the representation. Moreover, a preliminary second version of the module is presented, which has been designed so as to allow the control sectors to slide on the strip. Thanks to this feature, it will be possible to place the control sector in a given point of the trajectory, such as point of maximum, point of minimum or inflection points. The device is designed to be portable, low cost, modular and high performing in terms of types of shapes that can be represented. A prototype equipped with three modules has been developed in order to evaluate the usability and the performances of the display.

scholarly journals Referred Pain Elicited by Manual Exploration of the Lateral Rectus Muscle in Chronic Tension-Type Headache

Pain Medicine ◽  
2009 ◽  
Vol 10 (1) ◽  
pp. 43-48 ◽  
Author(s):  
César Fernández-de-las-Peñas ◽  
Maria Luz Cuadrado ◽  
Robert D. Gerwin ◽  
Juan A. Pareja
Keyword(s):  
Rectus Muscle ◽  
Tension Type Headache ◽  
Referred Pain ◽  
Lateral Rectus ◽  
Chronic Tension Type Headache ◽  
Lateral Rectus Muscle ◽  
Manual Exploration ◽  
Type Headache

scholarly journals Grasping the Nature of Pictures

1998 ◽  
Vol 9 (3) ◽  
pp. 205-210 ◽  
Author(s):  
Judy S. DeLoache ◽  
Sophia L. Pierroutsakos ◽  
David H. Uttal ◽  
Karl S. Rosengren ◽  
Alma Gottlieb
Keyword(s):  
United States ◽  
Ivory Coast ◽  
The United States ◽  
Culturally Appropriate ◽  
Appropriate Use ◽  
Dual Nature ◽  
Manual Exploration ◽  
Real Objects ◽  
Initial Uncertainty

The role of experience in the development of pictorial competence has been the center of substantial debate. The four studies presented here help resolve the controversy by systematically documenting and examining manual exploration of depicted objects by infants. We report that 9-month-old infants manually investigate pictures, touching and feeling depicted objects as if they were real objects and even trying to pick them up off the page. The same behavior was observed in babies from two extremely different societies (the United States and the Ivory Coast). This investigation of pictures occurs even though infants can discriminate between real objects and their depictions. By the time infants are 19 months of age, their manual exploration is replaced by pointing at depicted objects. These results indicate that initial uncertainty about the nature of pictures leads infants to investigate them. Through experience, infants begin to acquire a concept of “picture.” This concept includes the fact that a picture has a dual nature (it is both an object and a representation of something other than itself), as well as knowledge about the culturally appropriate use of pictures.

scholarly journals Mapping the evolution of topics published by Education for Information: Interdisciplinary Journal of Information Studies

2021 ◽  
pp. 1-19
Author(s):  
Fidelia Ibekwe ◽  
Fernanda Bochi ◽  
Daniel Martínez-Ávila
Keyword(s):  
Data Science ◽  
Information Science ◽  
Editorial Policy ◽  
The Body ◽  
Library And Information Science ◽  
Topic Detection ◽  
Manual Exploration ◽  
Information Studies ◽  
Mature Field ◽  
Interdisciplinary Journal

The need to map the evolution of trends in any field of activity arises when a large amount of data is available on that activity, thus making impossible a manual exploration of the data in order to understand how the field or the activity is evolving. Topic and trend mapping is a mature field with hundreds of publications on approaches, methods and tools for data collection, analysis, feature extraction and reduction, clustering and visualisation tools and algorithms. Our study aims to map the evolution of topics published by the journal Education for Information. Interdisciplinary Journal on Information Studies (EFI henceforth) which has been in existence since 1983, in order to understand how this journal has evolved and how it is positioned with regard to the field of Library and Information Science to which it belongs. Our study is part of the body of work on topic detection and text mining. Our results showed that the journal displayed a remarkable stability in its editorial policy over more than three decades. With the arrival of its third Editor in Chief in 2018, a shift towards more technologically oriented topics and to specialties from other fields are perceptible such as health information, data science and digital humanities.

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