Use of the automatic tympanometer as a screening tool for congenital choanal atresia

2005 ◽  
Vol 119 (2) ◽  
pp. 125-128 ◽  
Author(s):  
Kamal G Effat
Keyword(s):  
Congenital Anomaly ◽  
Minimally Invasive ◽  
Screening Tool ◽  
Choanal Atresia ◽  
Newborn Infants ◽  
The Novel ◽  
Simple Method ◽  
Distal Obstruction ◽  
Novel Method ◽  
A Prospective Study

Choanal atresia is a significant congenital anomaly, which may be associated with other congenital anomalies. Recommendations have been previously proposed for neonatal screening of all newborns to detect this condition. A previously unreported, simple method using the automatic tympanometer to screen newborns for congenital choanal atresia is proposed. A prospective study was performed over a one-month period on all newborns at El-Sahel Teaching Hospital, Cairo, to evaluate the efficacy of this manoeuvre. The nostrils of 143 newborn infants were evaluated during the study period. The sensitivity of the technique in diagnosing a patent nostril was 100 per cent. The specificity of the technique for detecting distal obstruction was 100 per cent. There were no complications of the described procedures. The study revealed that the novel method of screening for choanal atresia in newborns using the automatic tympanometer is simple, minimally invasive and highly reproducible.

scholarly journals A NOVEL SIMPLE-BASED PRESSURE-ENTHALPY COUPLING SCHEME FOR ENGINE FLOW PROBLEMS

2012 ◽  
Vol 17 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Maximilian Emans ◽  
Zoran Žunič ◽  
Branislav Basara ◽  
Sergey Frolov
Keyword(s):  
Linear Equations ◽  
Computing Time ◽  
Simple Algorithm ◽  
Variable Density ◽  
Coupling Scheme ◽  
The Novel ◽  
Simple Method ◽  
Flow Problems ◽  
Novel Method ◽  
Coupling Terms

A novel method in CFD derived from the SIMPLE algorithm is presented. Instead of solving the linear equations for each variable and the pressurecorrection equation separately in a so-called segregated manner, it relies on the solution of a linear system that comprises the discretisation of enthalpy and pressurecorrection equation which are linked through physical coupling terms. These coupling terms reflect a more accurate approximation of the density update with respect to thermodynamics (compared to standard SIMPLE method). We show that the novel method is a reasonable extension of existing CFD techniques for variable density flows based on SIMPLE. The novel method leads to a reduction of the number of iterations of SIMPLE which translates in many – but not in all – cases to a reduction in computing time. We will therefore demonstrate practical advantages and restrictions in terms of computational efficiency for industrial CFD applications in the field of piston engine simulations.

Measurement of the International Normalized Ratio (INR) in Hemodialysis Patients with Heparin-Locked Central venous Catheters: Evaluation of a Novel Blood Sampling Method

2009 ◽  
Vol 10 (3) ◽  
pp. 180-182 ◽  
Author(s):  
Jean-Philippe Rioux ◽  
Bruno De Bortoli ◽  
Serge Quérin ◽  
Clément Déziel ◽  
Stéphan Troyanov ◽  
...  
Keyword(s):  
Sampling Method ◽  
Sampling Technique ◽  
International Normalized Ratio ◽  
The Novel ◽  
Blood Contamination ◽  
Simple Method ◽  
Heparin Administration ◽  
Novel Method ◽  
Clinically Significant ◽  
Central Catheters

Background Accurate measurement of the international normalized ratio (INR) may be difficult in hemodialysis (HD) patients with heparin-locked central catheters. Blood contamination with locking solutions may interfere with INR measurement when samples are collected directly from the catheter. Methods The aim of our study was to evaluate a novel sampling method for the measurement of INR in HD patients with heparin-locked central catheters. This novel method consists of measuring the INR directly from the dialysis circuit (arterial bloodline sample port) after 1 hr of treatment regardless of heparin administration during dialysis. We compared this method to the gold standard (peripheral venipuncture prior to dialysis) using the paired t-test. We included 30 patients (23 with warfarin therapy and 7 without). Results INRs obtained using the novel sampling method were only minimally overestimated compared to venipuncture values (mean INR overestimation: 0.2 +/- 0.2). This overestimation was not clinically significant and did not lead to changes in warfarin prescription for any of the patients. Correlation tests confirmed the influence of heparin administration on INR overestimation (R=0.4; p=0.05). This influence was present mostly among patients receiving more than 100 Units/kg of heparin during their treatment. Conclusion This novel sampling technique provides a convenient and simple method of monitoring INR among HD patients.

A Novel Method to Facilitate Uterine Delivery at Robotic Hysterectomy

2018 ◽  
Vol 28 (3) ◽  
pp. 600-603
Author(s):  
Shih-Ern Yao ◽  
Tom Manolitsas
Keyword(s):  
Minimally Invasive ◽  
Oncological Outcome ◽  
Vaginal Wall ◽  
Complication Rates ◽  
Robotic Hysterectomy ◽  
Postoperative Pain Control ◽  
Simple Method ◽  
Novel Method ◽  
Oncology Practice ◽  
Extended Reflection

AbstractMinimally invasive platforms have afforded women undergoing hysterectomy the advantages of improved postoperative pain control, reduced complication rates, and shorter inpatient recovery time. In patients where malignancy has been confirmed or suspected, the necessity for uterine delivery per vagina is imperative to maintain these advantages without compromising oncological outcome.A previously unreported technique of enlarging the apical circumference of the vagina during robotic hysterectomy facilitates intact uterine passage after extended reflection of the bladder and/or rectum. Significant increases in vault circumference can be gained through even small midline incisions of the vaginal wall, with an additional 5-cm incision almost doubling the apical aperture in certain cases.We present our series of 21 cases that support this safe, reliable, and simple method for intact uterine delivery during robotic hysterectomy in minimally invasive gynecological oncology practice.

scholarly journals Plate on Plate Osteosynthesis : A Novel Method For Periplate Fracture Fixation

2020 ◽  
Vol 8 (5_suppl5) ◽  
pp. 2325967120S0004
Author(s):  
Jagjoth Singh ◽  
Kamarul Arifin Abdul Razak ◽  
Terence Michal Dass ◽  
Tan Weng Liang ◽  
Yogeshwarran Nadeson ◽  
...  
Keyword(s):  
Distal Femur ◽  
Locking Plate ◽  
Plate Osteosynthesis ◽  
Plate Fixation ◽  
X Rays ◽  
Locking Plate Fixation ◽  
Simple Method ◽  
Invasive Approach ◽  
Novel Method ◽  
A Prospective Study

Periplate fractures may occur after plate fixation, especially in osteoporotic and non-united bones. We present a case of locking plate fixation over an existing plate for such fractures. Case Presentation: 58 years old man slipped and fell in sitting position 8 months post left distal femur LCP. He sustained pain and swelling of the left hip. The left thigh was externally rotated and shorter than the normal side. X-rays revealed a periplate fracture extending to the subtrochanteric region. A reverse right distal femur LCP was planned. A minimally invasive approach was used. Proximal screws were removed from the original plate and new screws were inserted through both plates which were of similar material, Titanium. Discussion: Elderly population makes a large subgroup of the cases due to osteoporosis and rigidity of the LCP construct2. This fixation provides a simple method to reduce surgical time, bleeding, and preserving more blood supply to enhance fracture healing, as opposed to using nails supplemented with cerclage/cable wires. Care should be taken to use the pre-existing screw holes in the overlapping segment of the two plates, as well as similar plate materials to avoid stress risers and reduce corrosion1. Conclusion: Plate on plate osteosynthesis is a novel method that may prove valuable due to the increasing population age and unique types of fractures. Further research is needed to determine any complications related to this type of fixation. References: Georgios Arealis et. al Plate On Plate Osteosynthesis For The Treatment Of Non Healed Periplate Fractures, Hindawi Publishing Corporation, Volume 2014, Article 367490 S. Ruchholtz, et al., “Less invasive polyaxial locking plate fixation in periprosthetic and peri-implant fractures of the femur—a prospective study of 41 patients,” Injury, vol. 44, no. 2, pp. 239–248, 2013

A Novel Method of Quantifying Gait Deviations Using Plantar Pressure Patterns

2016 ◽  
Vol 106 (4) ◽  
pp. 299-304
Author(s):  
Kevin Deschamps ◽  
Filip Staes ◽  
Dirk Desmet ◽  
Philip Roosen ◽  
Giovanni Arnoldo Matricali ◽  
...  
Keyword(s):  
Applied Research ◽  
The Novel ◽  
Z Score ◽  
Color Coding ◽  
Data Set ◽  
Simple Method ◽  
Patient Level ◽  
Foot Length ◽  
Novel Method ◽  
Basic And Applied Research

Background: Comparing the dynamic pedobarographic patterns of individuals is common practice in basic and applied research. However, this process is often time-consuming and complex, and commercially available software often lacks powerful visualization and interpretation tools. Methods: We propose a simple method for displaying pixel-level pedobarographic deviations over time relative to a so-called reference pedobarographic pattern. This novel method contains four distinct automated preprocessing stages: 1) normalization of pedobarographic fields (for foot length and width), 2) temporal normalization, 3) a pixel-level z-score–based calculation, and 4) color coding of the normalized pedobarographic fields. Group and patient-level comparisons were illustrated using an experimental data set including diabetic and nondiabetic patients. Results: The automated procedure was found to be robust and quantified distinct temporal deviations in pedobarographic fields. Conclusions: The advantages of the novel method cover several domains, including visualization, interpretation, and education.

A novel method for the determination of linting propensity of paper

TAPPI Journal ◽  
2012 ◽  
Vol 11 (10) ◽  
pp. 9-17
Author(s):  
ALESSANDRA GERLI ◽  
LEENDERT C. EIGENBROOD
Keyword(s):  
Ash Content ◽  
The Novel ◽  
Offset Printing ◽  
Excellent Correlation ◽  
End Conditions ◽  
Bottom Side ◽  
Novel Method ◽  
Total Fraction

A novel method was developed for the determination of linting propensity of paper based on printing with an IGT printability tester and image analysis of the printed strips. On average, the total fraction of the surface removed as lint during printing is 0.01%-0.1%. This value is lower than those reported in most laboratory printing tests, and more representative of commercial offset printing applications. Newsprint paper produced on a roll/blade former machine was evaluated for linting propensity using the novel method and also printed on a commercial coldset offset press. Laboratory and commercial printing results matched well, showing that linting was higher for the bottom side of paper than for the top side, and that linting could be reduced on both sides by application of a dry-strength additive. In a second case study, varying wet-end conditions were used on a hybrid former machine to produce four paper reels, with the goal of matching the low linting propensity of the paper produced on a machine with gap former configuration. We found that the retention program, by improving fiber fines retention, substantially reduced the linting propensity of the paper produced on the hybrid former machine. The papers were also printed on a commercial coldset offset press. An excellent correlation was found between the total lint area removed from the bottom side of the paper samples during laboratory printing and lint collected on halftone areas of the first upper printing unit after 45000 copies. Finally, the method was applied to determine the linting propensity of highly filled supercalendered paper produced on a hybrid former machine. In this case, the linting propensity of the bottom side of paper correlated with its ash content.

scholarly journals REMAXINT: a two-mode clustering-based method for statistical inference on two-way interaction

2021 ◽  
Author(s):  
Zaheer Ahmed ◽  
Alberto Cassese ◽  
Gerard van Breukelen ◽  
Jan Schepers
Keyword(s):  
Null Hypothesis ◽  
Type I Error ◽  
Type I ◽  
The Novel ◽  
Simulation Studies ◽  
Test Statistic ◽  
Clustering Model ◽  
Novel Method ◽  
Main Effects ◽  
Empirical Case Studies

AbstractWe present a novel method, REMAXINT, that captures the gist of two-way interaction in row by column (i.e., two-mode) data, with one observation per cell. REMAXINT is a probabilistic two-mode clustering model that yields two-mode partitions with maximal interaction between row and column clusters. For estimation of the parameters of REMAXINT, we maximize a conditional classification likelihood in which the random row (or column) main effects are conditioned out. For testing the null hypothesis of no interaction between row and column clusters, we propose a $$max-F$$ m a x - F test statistic and discuss its properties. We develop a Monte Carlo approach to obtain its sampling distribution under the null hypothesis. We evaluate the performance of the method through simulation studies. Specifically, for selected values of data size and (true) numbers of clusters, we obtain critical values of the $$max-F$$ m a x - F statistic, determine empirical Type I error rate of the proposed inferential procedure and study its power to reject the null hypothesis. Next, we show that the novel method is useful in a variety of applications by presenting two empirical case studies and end with some concluding remarks.

scholarly journals Interrogating the Egypto-Sudanic Arabic Connection

Languages ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 123
Author(s):  
Thomas A. Leddy-Cecere
Keyword(s):  
The Novel ◽  
Present Contribution ◽  
Phonological Processes ◽  
Verbal Inflection ◽  
Segmental Phonology ◽  
Language Data ◽  
History Of ◽  
Novel Method ◽  
Dialect Classification ◽  
Arabic Speaking

The Arabic dialectology literature repeatedly asserts the existence of a macro-level classificatory relationship binding the Arabic speech varieties of the combined Egypto-Sudanic area. This proposal, though oft-encountered, has not previously been formulated in reference to extensive linguistic criteria, but is instead framed primarily on the nonlinguistic premise of historical demographic and genealogical relationships joining the Arabic-speaking communities of the region. The present contribution provides a linguistically based evaluation of this proposed dialectal grouping, to assess whether the postulated dialectal unity is meaningfully borne out by available language data. Isoglosses from the domains of segmental phonology, phonological processes, pronominal morphology, verbal inflection, and syntax are analyzed across six dialects representing Arabic speech in the region. These are shown to offer minimal support for a unified Egypto-Sudanic dialect classification, but instead to indicate a significant north–south differentiation within the sample—a finding further qualified via application of the novel method of Historical Glottometry developed by François and Kalyan. The investigation concludes with reflection on the implications of these results on the understandings of the correspondence between linguistic and human genealogical relationships in the history of Arabic and in dialectological practice more broadly.

scholarly journals Suspended Sediment Modeling Using a Heuristic Regression Method Hybridized with Kmeans Clustering

2021 ◽  
Vol 13 (9) ◽  
pp. 4648
Author(s):  
Rana Muhammad Adnan ◽  
Kulwinder Singh Parmar ◽  
Salim Heddam ◽  
Shamsuddin Shahid ◽  
Ozgur Kisi
Keyword(s):  
Clustering Algorithm ◽  
Suspended Sediments ◽  
Ecological Impacts ◽  
Accurate Estimation ◽  
Data Sets ◽  
The Novel ◽  
Neuro Fuzzy ◽  
Adaptive Regression ◽  
Novel Method ◽  
Model Training

The accurate estimation of suspended sediments (SSs) carries significance in determining the volume of dam storage, river carrying capacity, pollution susceptibility, soil erosion potential, aquatic ecological impacts, and the design and operation of hydraulic structures. The presented study proposes a new method for accurately estimating daily SSs using antecedent discharge and sediment information. The novel method is developed by hybridizing the multivariate adaptive regression spline (MARS) and the Kmeans clustering algorithm (MARS–KM). The proposed method’s efficacy is established by comparing its performance with the adaptive neuro-fuzzy system (ANFIS), MARS, and M5 tree (M5Tree) models in predicting SSs at two stations situated on the Yangtze River of China, according to the three assessment measurements, RMSE, MAE, and NSE. Two modeling scenarios are employed; data are divided into 50–50% for model training and testing in the first scenario, and the training and test data sets are swapped in the second scenario. In Guangyuan Station, the MARS–KM showed a performance improvement compared to ANFIS, MARS, and M5Tree methods in term of RMSE by 39%, 30%, and 18% in the first scenario and by 24%, 22%, and 8% in the second scenario, respectively, while the improvement in RMSE of ANFIS, MARS, and M5Tree was 34%, 26%, and 27% in the first scenario and 7%, 16%, and 6% in the second scenario, respectively, at Beibei Station. Additionally, the MARS–KM models provided much more satisfactory estimates using only discharge values as inputs.

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