bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thoracic fluid content: a novel parameter for predicting failed weaning from mechanical ventilation
Authors: Fathy Shymaa , Hasanin Ahmed M. , Raafat Mohamed , Mostafa Maha M. A. , Fetouh Ahmed M. , Elsayed Mohamed , Badr Esraa M. , Kamal Hanan M. , Fouad Ahmed Z. 
Published: March 2020

Abstract
Background
Weaning of patients from the mechanical ventilation remains one of the critical decisions in intensive care unit. This study aimed to evaluate the accuracy of thoracic fluid content (TFC) as a predictor of weaning outcome.

Methods
An observational cohort study included 64 critically ill surgical patients who were eligible for extubation. Before initiating the spontaneous breathing trial, the TFC was measured using the electrical cardiometry technology. Patients were followed up after extubation and divided into successful weaning group and failed weaning group. Both groups were compared according to respiratory and cardiovascular parameters. Receiver operating characteristic (ROC) curves were constructed to evaluate the ability of TFC to predict weaning outcome.

Results
The number of successfully weaned patients was 41/64 (64%). Twenty (31%) patients had impaired cardiac contractility, and of them, 13/20 (64%) patients were successfully extubated. Both groups, successful weaning group and failed weaning group, were comparable in most of baseline characteristics; however, the TFC was significantly higher in the failed weaning group compared to the successful weaning group. The area under the ROC curves (AUCs) showed moderate predictive ability for the TFC in predicting weaning failure (AUC [95% confidence interval] 0.69 [0.57–0.8], cutoff value > 50 kΩ−1), while the predictive ability of TFC was excellent in the subgroup of patients with ejection fraction < 40% (AUC [95% confidence interval 0.93 [0.72–1], cutoff value > 50 kΩ−1).

Conclusions
Thoracic fluid content showed moderate ability for predicting weaning outcome in surgical critically ill patients. However, in the subgroup of patients with ejection fraction less than 40%, TFC above 50 kΩ−1 has an excellent ability to predict weaning failure.
Alfvén wave evolution into magnetic filaments in 3-D space plasma
Authors: Comişel Horia , Narita Yasuhito , Motschmann Uwe 
Published: March 2020

AbstractNonlinearities in space and astrophysical plasmas generate a set of magnetic filaments or bundles that have an incompressible sense of fluctuations and propagate highly obliquely to the mean magnetic field. Those filaments are caused by wave–wave interactions in which a large-amplitude Alfvén wave (or pump Alfvén wave) is disturbed by thermal, density fluctuations and collapses into obliquely propagating Alfvén waves at shorter wavelengths than the pump. Hybrid simulations confirm the filament excitations in the three-dimensional low-beta plasma. Alfvén waves develop into magnetic filaments on a time scale of about 300 ion gyrations. The filaments grow in a multi-channel way at various azimuthal angles around the mean magnetic field.
Bilateral spontaneous thrombosis of the pampiniform plexus mimicking incarcerated inguinal hernia: case report of a rare condition and literature review
Authors: Bakshi Sabyasachi 
Published: March 2020

Abstract
Background
Pampiniform plexus thrombosis is a very rare disease (only less than 25 published cases are available till date), and it is a diagnostic dilemma. The present case is an unusual condition of an elderly gentleman who was finally diagnosed as a case of spontaneous thrombosis of bilateral pampiniform plexus and was managed conservatively. Literature was reviewed to explore potential etiologies and therapeutic strategies.

Case presentation
A 65-year-old afebrile gentleman, laborer (in brick industry), and non-smoker with no previous major health problems was admitted with swelling in the bilateral inguinal region. The swelling had started one and half months ago. He had developed severe pain over the swelling for last 1 day with tenderness and indurations. Neither he had history of previous surgeries, chronic cough, dysuria, prostatism, and trauma nor he presented any thrombogenic factors. There was no history of vomiting, abdominal pain, and obstipation. Physical examination revealed normotensive person with BMI of 22.5, was significant only for one tender, movable, and firm to hard 10 cm × 3 cm mass extending from the left deep inguinal ring up to the upper pole of the testis in the scrotum. Another 5 cm × 3 cm mass of similar characteristics was found extending from deep inguinal ring up to the root of the scrotum on right side. The testes and prostate were normal on palpation.
On the contrary to preoperative USG, which clinched suspicion of incarcerated inguinal hernia, a thrombosed pampiniform plexus without any evidence of hernia sac was found on the left side during inguino-scrotal exploration. Wound was closed without doing any further procedure. Contralateral inguino-scrotal exploration was spared considering same nature of disease. Postoperative Doppler ultrasonography confirmed the diagnosis of bilateral thrombosed pampiniform plexus. MDCT of whole abdomen revealed no abnormality other than bilateral spermatic cord thrombosis. Blood thrombophilia screening came normal. The subject had an uneventful postoperative hospital course. With 2 years of follow-up, the gentleman is doing well, remaining asymptomatic and had returned to his usual life.

Conclusions
Due to extreme rarity, spontaneous thrombosis of the pampiniform plexus may be a diagnostic dilemma and requires a high index of suspicion. Doppler ultrasound is the initial investigation of choice. In the absence of other concomitant disease, beginning the treatment conservatively instead of excising the thrombosed segment is more suitable.
Solvability of initial-boundary value problem of a multiple characteristic fifth-order operator-differential equation
Authors: Faried Nashat , Rashed Labib , Ahmed Abdel Baset I. , Labeeb Mohamed A. 
Published: March 2020

Abstract
In this study, we establish existence-uniqueness of a vector function in appropriate Sobolev-type space for a boundary value problem of a fifth-order operator differential equation. Proper conditions are obtained for the given problem to be well-posed. Much effort is devoted to develop the association between these conditions and the operator coefficients of the investigated equation. In this paper, accurate estimates of the norms of the intermediate derivatives operators are presented and used to determine the solvability conditions.
Two-phase mixed convection nanofluid flow of a dusty tangent hyperbolic past a nonlinearly stretching sheet
Authors: Mahdy A. , Hoshoudy G. A. 
Published: March 2020

AbstractA theoretical analysis for magnetohydrodynamic (MHD) mixed convection of non-Newtonian tangent hyperbolic nanofluid flow with suspension dust particles along a vertical stretching sheet is carried out. The current model comprises of non-linear partial differential equations expressing conservation of total mass, momentum, and thermal energy for two-phase tangent hyperbolic nanofluid phase and dust particle phase. Primitive similarity formulation is given to mutate the dimensional boundary layer flow field equations into a proper nonlinear ordinary differential system then Runge-Kutta-Fehlberg method (RKF45 method) is applied. Distinct pertinent parameter impact on the fluid or particle velocity, temperature, concentration, and skin friction coefficient is illustrated. Analysis of the obtained computations shows that the flow field is affected appreciably by the existence of suspension dust particles. It is concluded that an increment in the mass concentration of dust particles leads to depreciate the velocity distributions of the nanofluid and dust phases. The numerical computations has been validated with earlier published contributions for a special cases.
Approximation of common solutions for a fixed point problem of asymptotically nonexpansive mapping and a generalized equilibrium problem in Hilbert space
Authors: Osward Richard , Kumar Santosh , Sangago Mengistu Goa 
Published: March 2020

Abstract
In this paper, we introduce an iterative algorithm to approximate a common solution of a generalized equilibrium problem and a fixed point problem for an asymptotically nonexpansive mapping in a real Hilbert space. We prove that the sequences generated by the iterative algorithm converge strongly to a common solution of the generalized equilibrium problem and the fixed point problem for an asymptotically nonexpansive mapping. The results presented in this paper extend and generalize many previously known results in this research area. Some applications of main results are also provided.
Dynamics and chaos control in a discrete-time ratio-dependent Holling-Tanner model
Authors: Sohel Rana Sarker Md. 
Published: March 2020

AbstractA discrete-time Holling-Tanner model with ratio-dependent functional response is examined. We show that the system experiences a flip bifurcation and Neimark-Sacker bifurcation or both together at positive fixed point in the interior of $\mathbb {R}^{2}_{+}$ℝ+2 when one of the model parameter crosses its threshold value. We concentrate our attention to determine the existence conditions and direction of bifurcations via center manifold theory. To validate analytical results, numerical simulations are employed which include bifurcations, phase portraits, stable orbits, invariant closed circle, and attracting chaotic sets. In addition, the existence of chaos in the system is justified numerically by the sign of maximum Lyapunov exponents and fractal dimension. Finally, we control chaotic trajectories exists in the system by feedback control strategy.
Approximations of some near open sets in ideal topological spaces
Authors: Nawar A. S. 
Published: March 2020

AbstractIn this paper, we introduce the concepts of j-ideal lower and j-ideal upper approximations as a generalization of approximation by Pawlak by using j-ideal open sets where j ∈ {α, S, P, γ, β, ⋀β}. Some of their basic properties with the aid of examples are proven. Furthermore, we study the relationships between these approximations to get the best of them.
Sexual satisfaction and self-esteem in women with primary infertility
Authors: Zayed Abdelhady Abdelhady , El-Hadidy Mohamed Adel 
Published: March 2020

Abstract
Background
Infertility may adversely affect sexual satisfaction and self-esteem of the infertile couples.

Main body
This study aims to assess self-esteem (sexual and general), anxiety, and depression in women with primary infertility. It is a comparative cross-sectional study and data collection covers a 1-year period. The study population consisted of 284 women, of whom 150, who attended the gynecology outpatient clinic of the hospital for contraception in the control group, and 134, who attended the gynecology department asking for treatment from primary infertility in the study group. All participants were examined using Mini-International Neuropsychiatric Interview (MINI), Wechsler Adult Intelligence Scale-Revised (WAIS-R), Hamilton Anxiety Scale ( HAM-A), Hamilton Depression scales, socioeconomic standard using The Egyptian Classification of Socioeconomic Standard by El Gilany 2002, self-esteem using the Arabic translation of Rosenberg Self-esteem Scale, and Self-esteem and Relationship questionnaire (SEAR).
In the present study, women with primary infertility showed a higher prevalence of depression and anxiety with a statistically significant difference from fertile women. In addition, women with primary infertility showed lower general self-esteem, sexual satisfaction, sexual relationship, and sexual self-esteem than women with children and the difference was statistically significant.

Conclusion
Infertility has a negative effect on women's self-esteem, sexual activity, and psychological function.
The key role of daytime sleepiness in cognitive functioning of adults with attention deficit hyperactivity disorder
Authors: Helfer Bartosz , Bozhilova Natali , Cooper Ruth E. , Douzenis Joanna I. , Maltezos Stefanos , Asherson Philip 
Published: March 2020

Abstract

Background.
Adults with attention deficit hyperactivity disorder (ADHD) frequently suffer from sleep problems and report high levels of daytime sleepiness compared to neurotypical controls, which has detrimental effect on quality of life.

Methods.
We evaluated daytime sleepiness in adults with ADHD compared to neurotypical controls using an observer-rated sleepiness protocol during the Sustained Attention Response Task as well as electroencephalogram (EEG) slowing, a quantitative electroencephalographic measure collected during a short period of wakeful rest.

Results.
We found that adults with ADHD were significantly sleepier than neurotypical controls during the cognitive task and that this on-task sleepiness contributed to cognitive performance deficits usually attributed to symptoms of ADHD. EEG slowing predicted severity of ADHD symptoms and diagnostic status, and was also related to daytime sleepiness. Frontal EEG slowing as well as increased frontal delta were especially prominent in adults with ADHD. We have validated and adapted an objective observer-rated measure for assessing on-task sleepiness that will contribute to future sleep research in psychology and psychiatry.

Conclusions.
These findings indicate that the cognitive performance deficits routinely attributed to ADHD and often conceptualized as cognitive endophenotypes of ADHD are largely due to on-task sleepiness and not exclusively due to ADHD symptom severity. Daytime sleepiness plays a major role in cognitive functioning of adults with ADHD.
Prognostic Value of Teratoma in Primary Tumor and Postchemotherapy Retroperitoneal Lymph Node Dissection Specimens in Patients With Metastatic Germ Cell Tumor
Authors: Taza Fadi , Chovanec Michal , Snavely Anna , Hanna Nasser H. , Cary Clint , Masterson Timothy A. , Foster Richard S. , Einhorn Lawrence H. , Albany Costantine , Adra Nabil 
Published: March 2020

PURPOSE Presence of teratoma in patients with metastatic testicular germ cell tumor (GCT) is of unknown prognostic significance. We report survival outcomes of patients with or without teratoma in primary tumor and postchemotherapy retroperitoneal lymph node dissection (PC-RPLND) specimen and assess impact on prognosis. PATIENTS AND METHODS Patients with metastatic nonseminomatous GCT (NSGCT) who were evaluated at Indiana University between 1990 and 2016 and had primary testicular tumor specimen from orchiectomy (ORCH) were included. All patients were treated with cisplatin-based combination chemotherapy. The cohort was divided into 2 groups according to presence or absence of teratoma in ORCH specimen. Survival data were correlated with histopathologic findings. Differences in progression-free (PFS) and overall survival (OS) were evaluated using log-rank tests and Cox proportional hazards models to adjust for known adverse prognostic factors. RESULTS We identified 1,224 consecutive patients evaluated at Indiana University between 1990 and 2016 who met inclusion criteria. Median age was 27 years (range, 13-71 years); 689 patients had teratoma in ORCH specimen, and 535 did not. With median follow-up of 2.3 years, 5-year PFS was 61.9% (95% CI, 57.1% to 66.2%) for those with teratoma versus 63.1% (95% CI, 58.0% to 67.8%) for those without ( P = .66); 5-year OS was 82.2% (95% CI, 77.9% to 85.8%) versus 81.4% (95% CI, 76.5% to 85.3%; P = .91), respectively. A total of 473 patients underwent PC-RPLND; 5-year PFS for patients with pure teratoma in PC-RPLND specimen versus necrosis only was 65.9% versus 79.1% ( P = .06), and 5-year OS was 90.3% versus 93.4% ( P = .21), respectively. CONCLUSION Presence of teratoma in ORCH and PC-RPLND specimens was not a prognostic factor in this large retrospective study of patients with NSGCT.
Evaluating Web-Based Direct-to-Consumer Genetic Tests for Cancer Susceptibility
Authors: Kilbride Madison K. , Bradbury Angela R. 
Published: March 2020

PURPOSE Recent years have seen direct-to-consumer (DTC) genetic testing for cancer susceptibility change dramatically. For one, a new model now dominates the market where tests are advertised to consumers but ordered by physicians. For another, many of today’s tests are distinguished from earlier DTC offerings for cancer susceptibility by their scope and potential clinical significance. This review provides a comprehensive overview of available DTC genetic tests for cancer susceptibility and identifies aspects of the DTC testing process that could affect consumers’ ability to make informed decisions about testing and understand their results. METHODS First, we provide an overview of each DTC genetic test for cancer susceptibility that includes information about cost; who orders it; whether variants of uncertain significance are returned; availability of genetic counseling; intended users; management of variant reclassifications; whether it is characterized as diagnostic, actionable, and clinically valid; molecular technique used; and Clinical Laboratory Improvement Amendments/College of American Pathologists status. Second, we identify six aspects of the testing process that could affect consumers’ ability to make informed decisions about testing and interpret their results: How companies use certain terms (eg, medical grade or clinical grade); how companies use consumers’ health information during the ordering process; the extent of genetic counseling provided by companies; companies’ procedures for returning results; the role of company-provided ordering physicians; and companies’ procedures for communicating variant reclassifications. RESULTS On the basis of our review of companies’ Web sites, we believe that consumers would benefit from more information about these aspects of testing. CONCLUSION Providing this information would help consumers make informed decisions about whether to use a particular DTC genetic testing service and, should they choose to pursue testing, understand the implications and limitations of their results.
Comparison of CBCT with different voxel sizes and intraoral scanner for detection of periodontal defects: an in vitro study
Authors: Icen Murat , Orhan Kaan , Şeker Çiğdem , Geduk Gediz , Cakmak Özlü Fethiye , Cengiz Murat İnanç 
Published: March 2020

Objectives: This study aimed to compare the diagnostic accuracy of cone beam CT (CBCT) units with different voxel sizes with the digital intraoral scanning technique in terms of the detection of periodontal defects. Methods and materials: The study material comprised of 12 dry skulls with maxilla and mandible. Artificial defects were created on teeth separately using burs randomly on dry skulls. In total 46 dehiscences, 10 fenestrations, 17 furcations, 12 wall defects and 13 without periodontal defect were used in the study. Each tooth with and without defects was imaged at various vertical angles using each of the following modalities: a Veraviewepocs 3D R100 CBCT device and a 3D Shape TRIOSㄾ Color P13 Shade Intraoral Scanner. Results: The κ values for interobserver agreement between observers ranged between 0.29 and 0.86 for the CBCT 10 × 8 cm field of view (FOV) with 0,160 mm3 voxel size; 0.35 and 1 for the CBCT 8 × 8 cm FOV with 0,125 mm3 voxel size; and 0.30 and 1 of intraoral scans. The κ values for detecting defects on anterior teeth were the least, following premolar and molar teeth both CBCT and intraoral scanning. Conclusions: Smaller voxel sizes and smaller CBCT FOV has the highest sensitivity and diagnostic accuracy for detecting various periodontal defects among the scanner modalities examined. Advances in knowledge: Adequate evaluation of the condition of the alveolar bone and periodontal tissues is important for the diagnosis, treatment, and prognosis of periodontal disease. Limited examination methods, such as palpation, inspection, and periodontal probe examination, may provide insufficient information for the diagnosis of periodontal diseases.
Wildly Oscillating Molecules: Technological mediation of the atomic force microscope
Authors: Rassell Andrea 
Published: March 2020

Abstract
The human sensory experience of submolecular phenomena is only possible through complex technological mediations that include not just magnifications, but also manipulations of time and translations from one sense to another. In my creative moving image project Wildly Oscillating Molecules, I develop strategies for using an atomic force microscope (AFM) as a cinematographic instrument, specifically using its tactile mechanisms to generate video. Using the AFM over four years to generate experimental moving image installations, I examine my physical and psychological experiences of this nanoscientific instrumentation. Although referred to by the philosopher of technology Don Ihde, the AFM's style of technological mediation has not been subjectively explored. Working to engage with an infinitesimal scale, the AFM has a unique style of spatial and temporal mediation that can be manipulated through the post-production and exhibition practices of the moving image. Wildly Oscillating Molecules provides insight into how the AFM influences human spatial and temporal perception of nanoscale phenomena and provides a new framework with which to analyse nanoscientific imaging practices. Understanding the nuances of technological mediation encourages science artists working with submolecular phenomena to adopt, evolve or transform properties of technological mediation when presenting their work to an audience.
Art in the era of ecocentrism
Authors: Venturelli Suzete , Reis Artur , Delmondes Nycacia , Hargreaves Prahlada , Martins Tainá 
Published: March 2020

Abstract
This article describes activities carried out at the computational art laboratory and discusses a question about place. To think of place as the place of universal, it’s ground, the place where you live, it isn’t only a residence place, a construction of exploration, but also the planet as a possible place of survival. Therefore, we will present artworks that, in the name of a conception inspired by ecocentrism, propose to eliminate the ontological and axiological difference between all living beings and, for this reason, considers the biosphere as an important biotic unit in the context of artworks. Here the development of affective computer interfaces that seek to promote interactions is also described: a process by which an external or an internal stimulus causes a specific reaction, producing a perception, considering that the idea, in the Deleuzian and Guattarian sense, goes through creative activities. The idea arises in three distinct forms: in the philosophical context, in the form of concepts and in visual production. We describe below the results of collaborative research that has in common the poetics of interactivity between living beings and machines through graphical and machine interfaces, provided by computational processes and methods that approach several ideas involving affective mapping, body, nature and artificial life.