Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of Mixed Transplantation of Autologous and Allogeneic Microskin Grafts on Wound Healing in a Rat Model of Acute Skin Defect

The treatment of extensive thermal injuries with insufficient autologous skin remains a great challenge to burn surgeons. In this study, we investigated the influence of the ratio of autologous and allogeneic tissue in mixed microskin grafts on wound healing in order to develop an effective method for using limited donor skin to cover a large open wound. Four different mixtures were tested: autologous microskin at an area expansion ratio of 10∶1 with allogeneic microskin at an area expansion ratio of 10∶1 or 10∶3 and autologous microskin at an expansion ratio of 20∶1 with allogeneic microskin at an expansion ratio of 20∶3 or 20∶6. Wound healing, wound contraction, and integrin β1 expression were measured. Mixed microskin grafting facilitated wound healing substantially. The mixture of autologous microskin at an expansion ratio of 10∶1 with the same amount of allogeneic microskin achieved the most satisfactory wound healing among the 4 tested mixtures. Histological examination revealed the presence of obviously thickened epidermis and ectopic integrin β1 expression. Keratinocytes expressing integrin β1 were scattered in the suprabasal layer. Higher levels of integrin β1 expression were associated with faster wound healing, implying that ectopic expression of integrin β1 in keratinocytes may play a pivotal role in wound healing. In conclusion, this study proves that this new skin grafting technique may improve wound healing.
Multiclass Learning with Simplex Coding

In this paper we discuss a novel framework for multiclass learning, defined by a suitable coding/decoding strategy, namely the simplex coding, that allows to generalize to multiple classes a relaxation approach commonly used in binary classification. In this framework, a relaxation error analysis can be developed avoiding constraints on the considered hypotheses class. Moreover, we show that in this setting it is possible to derive the first provably consistent regularized method with training/tuning complexity which is independent to the number of classes. Tools from convex analysis are introduced that can be used beyond the scope of this paper.
Comparative evaluation of I-gel vs. endotracheal intubation for adequacy of ventilation in pediatric patients undergoing laparoscopic surgeries

Background and Aims: The use of newer supraglottic devices has been extended to laparoscopic procedures. We conducted this study to compare and evaluate the efficacy of these two devices in pediatric laparoscopic surgeries. Material and Methods: Eighty children, 2–8 years of age, scheduled for elective short laparoscopic procedures were randomly allocated to the I-gel or endotracheal tube (ETT) group. Standard anesthesia protocol was followed for inhalational induction. I-gel or ETT was inserted according to the manufacturer's recommendations. Ventilation was set with tidal volume 10 ml/kg and a respiratory rate of 16/min. Carboperitoneum was achieved up to an intra-abdominal pressure of 12 mmHg. Statistical Analysis: The primary outcome variable was adequacy of ventilation (peak airway pressure, end-tidal CO2, minute ventilation, and SPO2). These variables were recorded after securing airway, after carboperitoneum and desufflation of the peritoneal cavity. The oropharyngeal leak pressures were also noted. Statistical analysis was done using SPSS software version 17.0. P <0.05 was considered statistically significant. Results: No significant difference was observed in the heart rate or mean arterial pressure. There was a significant increase in the PECO2 and peak airway pressure after creation of carboperitoneum. There was significant increase in minute ventilation in both groups after creation of carboperitoneum. Conclusion: To conclude, I-gel is comparable to endotracheal intubation in terms of adequacy of ventilation. The increase in peak airway pressures is less with I-gel. In addition, postoperative complications are fewer with I-gel.
Length of post-traumatic amnesia and its prediction of neuropsychological outcome following severe to extremely severe traumatic brain injury in a litigating sample

ABSTRACT Primary Objective: The aim of the current study was to examine the relationship between duration of post-traumatic amnesia (PTA) and neuropsychological outcome at one or more years following severe to extremely severe traumatic brain injury (TBI) in a litigating sample. Research Design: Retrospective study design, using data collected from 2010 to 2017. Methods and Procedures: Data from 41 cases obtained from a private medicolegal neuropsychological database was examined. The database comprised information pertaining to TBI etiology, TBI severity parameters, demographic variables, neuropsychological test results and scores on psychological questionnaires. PTA duration was examined as a continuous variable. All cases that demonstrated non-credible effort were excluded. Main Outcomes and Results: Continuous PTA duration was not found to be a significant predictor of cognitive impairment across domains of verbal intellect, non-verbal intellect, working memory, information processing speed, immediate memory, delayed memory, and executive functioning. Conclusions: The predictive relationship between duration of PTA and cognitive impairment that has been reported in non-litigating populations did not exist in a litigating TBI sample. Findings illustrate the importance of investigating the relationships between injury variables and cognitive outcome in a population undergoing litigation, to provide better understanding of outcome in this subgroup of patients with TBI.
Environmental Toxicology and Chemistry

In the present study a recently developed benthic flow‐through chamber was used to assess the sediment‐to‐water flux of polycyclic aromatic hydrocarbons (PAHs) at 4 sites on the Swedish Baltic Sea coast. The flow‐through chamber allows for assessment of the potential effect of bioturbation on the sediment‐to‐water flux of hydrophobic organic contaminants. The sediments at the 4 investigated sites have both varying contamination degree and densities of bioturbating organisms. The flux of individual PAHs measured with the flow‐through chamber ranged between 21 and 510, 11 and 370, 3 and 9700, and 62 and 2300 ngm d for the 4 sites. To assess the potential effect of bioturbation on the sediment‐to‐water flux, 3 flow‐through and closed chambers were deployed in parallel at each site. The activity of benthic organisms is attenuated or halted because of depletion of oxygen in closed benthic chambers. Therefore, the discrepancy in flux measured with the 2 different chamber designs was used as an indication of a possible effect of bioturbation. A potential effect of bioturbation on the sediment‐to‐water flux by a factor of 3 to 55 was observed at sites with a high density of bioturbating organisms (e.g., Marenzelleria spp., Monoporeia affinis, and Macoma balthica of approximately 860–1200 individuals m) but not at the site with much lower organism density (<200 individuals m). One site had a high organism density and a low potential effect of bioturbation, which we hypothesize to be caused by the dominance of oligochaetes/polychaetes at this site because worms (Marenzelleria spp.) reach deeper into the sediment than native crustaceans and mollusks. Environ Toxicol Chem 2019;38:1803–1810. © 2019 SETAC
A Novel Time-Frequency Analysis Approach for Nonstationary Time Series Using Multiresolution Wavelet

An efficient time-varying autoregressive (TVAR) modeling scheme using the multiresolution wavelet method is proposed for modeling nonstationary signals and with application to time-frequency analysis (TFA) of time-varying signal. In the new parametric modeling framework, the time-dependent parameters of the TVAR model are locally represented using a novel multiresolution wavelet decomposition scheme. The wavelet coefficients are estimated using an effective orthogonal least squares (OLS) algorithm. The resultant estimation of time-dependent spectral density in the signal can simultaneously achieve high resolution in both time and frequency, which is a powerful TFA technique for nonstationary signals. An artificial EEG signal is included to show the effectiveness of the new proposed approach. The experimental results elucidate that the multiresolution wavelet approach is capable of achieving a more accurate time-frequency representation of nonstationary signals.
Caregivers’ perception of women’s dignity in the delivery room: A qualitative study

Introduction: Dignified care is one of the moral responsibilities of professional caregivers. However, in many cases the dignity of hospitalized patients, especially women in the delivery room, is not maintained. Dignity is an abstract concept and there has been no previous research exploring the dignity of pregnant women in the delivery room in Iran. Objectives: The objective of this study is to define and explain the concept of dignity for pregnant women in the delivery room from the perspectives of professional caregivers. Research design: This is qualitative research. The data were collected through in-depth semi-structured individual interviews. The conventional content analysis method was used to analyze the data. In qualitative content analysis, participant narrative is examined in-depth and sorted into categories and themes. Participants and research context: Potential participants who met the entrance criteria for this study were approached between July 2016 and February 2017. In all, 20 professional caregivers working in the delivery room setting within Iranian general hospitals were invited to participate in the study. The sampling was done through targeted sampling until saturation was achieved. Ethical considerations: The research ethics committee of the Shiraz University of Medical Sciences has approved the study’s protocol and all commonly recognized ethical principles were followed throughout the study. Findings: The findings of this study were presented in three main themes, including “privacy,” “respecting patients’ preferences,” and “comprehensive attention” and eight categories. Discussions and conclusion: Women in the delivery room need to be taken care of in an environment where healthcare staff promote the preservation of dignity through maintaining privacy, by providing attentive care and through ensuring that patient preferences regarding care and treatment are respected. In such an environment, the dignity of these women would be maintained and desirable outcomes achieved.
Practice Patterns of Speech-Language Pathologists in Pediatric Vocal Health.

Purpose The purpose of this study was to investigate current practices of speech-language pathologists (SLPs) in the management of pediatric vocal health, with specific analysis of the influence of clinical specialty and workplace setting on management approaches. Method American Speech-Language-Hearing Association-certified clinicians providing services within the United States (1%-100% voice caseload) completed an anonymous online survey detailing clinician demographics; employment location and service delivery models; approaches to continuing professional development; and specifics of case management, including assessment, treatment, and discharge procedures. Results Current practice patterns were analyzed for 100 SLPs (0-42 years of experience; 77 self-identifying as voice specialists) providing services in 34 U.S. states across a range of metropolitan and nonmetropolitan workplace settings. In general, SLPs favored a multidisciplinary approach to management; included perceptual, instrumental, and quality of life measures during evaluation; and tailored intervention to the individual using a combination of therapy approaches. In contrast with current practice guidelines, only half reported requiring an otolaryngology evaluation prior to initiating treatment. Both clinical specialty and workplace setting were found to affect practice patterns. SLPs in school settings were significantly less likely to consider themselves voice specialists compared with all other work environments. Those SLPs who considered themselves voice specialists were significantly more likely to utilize voice-specific assessment and treatment approaches. Conclusion SLP practice largely mirrors current professional practice guidelines; however, potential exists to further enhance client care. To ensure that SLPs are best able to support children in successful communication, further research, education, and advocacy are required.
Ultrasonography‐guided anterior approach for axillary nerve blockade: An anatomical study

Combined ultrasound (US)‐guided blockade of the suprascapular and axillary nerves (ANs) has been proposed as an alternative to interscalene blockade for pain control in shoulder joint pathology or postsurgical care. This technique could help avoid respiratory complications and/or almost total upper limb palsy. Nowadays, the AN blockade is mostly performed using an in‐plane caudal‐to‐cephalic approach from the posterior surface of the shoulder, reaching the nerve immediately after it exits the neurovascular quadrangular space (part of the spatium axillare). Despite precluding most respiratory complications, this approach has not made postsurgical pain relief any better than an interscalene blockade, probably because articular branches of the AN are not blocked.Cephalic‐to‐caudal methylene blue injections were placed in the first segment of the AN of six Thiel‐embalmed cadavers using an US‐guided anterior approach in order to compare the distribution with that produced by a posterior approach to the contralateral AN in the same cadaver. Another 21 formalin‐fixed cadavers were bilaterally dissected to identify the articular branches of the AN.We found a good spread of the dye on the AN and a constant relationship of this nerve with the subscapularis muscle. The dye reached the musculocutaneous nerve, which also contributes to shoulder joint innervation. We describe the anatomical landmarks for an ultrasonography‐guided anterior AN blockade and hypothesize that this anterior approach will provide better pain control than the posterior approach owing to complete blocking of the joint nerve. Clin. Anat. 33:488–499, 2020. © 2019 Wiley Periodicals, Inc.
Mindreading by simulation: The roles of imagination and mirroring

1. Criteria of Adequacy for a Theory of 'Theory of Mind' There is consensus in cognitive science that ordinary people are robust mindreaders and that mindreading begins early in life. Many other questions concerning mindreading, however, remain in dispute, including the four that follow: (1) By what method(s) do cognizers read other people’s minds -that is, attribute mental states to them? Which cognitive capacities, mechanisms, or processes play pivotal roles in mindreading? Call this the task-execution question. (2) How did the human species, and how do individuals, acquire mindreading capacities? What are the phylogenetic and ontogenetic parts of the story? Call this the acquisition question. (3) What neural substrates underlie mindreading? In other words, does the proposed story pass neuroscientific muster? Call this the neural plausibility question. (4) How does the proffered story of mindreading mesh with the general story of human cognition? Is mindreading a typical example of cognition, or is it a singularity -a one-off piece of cognitive hardware? Call this the question of mesh.
Photoacoustic imaging for guidance of interventions in cardiovascular medicine

Imaging guidance is paramount to procedural success in minimally invasive interventions. Catheter-based therapies are the standard of care in the treatment of many cardiac disorders, including coronary artery disease, structural heart disease and electrophysiological conditions. Many of these diseases are caused by, or effect, a change in vasculature or cardiac tissue composition, which can potentially be detected by photoacoustic imaging. This review summarizes the state of the art in photoacoustic imaging approaches that have been proposed for intervention guidance in cardiovascular care. All of these techniques are currently in the preclinical phase. We will conclude with an outlook towards clinical applications.
Non-monotonic auto-regulation in single gene circuits

We theoretically study the effects of non-monotonic response curves in genetic auto-regulation by exploring the possible dynamical behaviors for such systems. Our motivation is twofold: we aim at conceiving the simplest genetic circuits for synthetic biology and at understanding the natural auto-regulation of the LrpB protein of the Sulfolobus solfataricus archaeon which exhibits non-monotonicity. We analyzed three toy models, based on mass-action kinetics, with increasing complexity and sought for oscillations and (fast) bistable switching. We performed large parameter scans and sensitivity analyses, and quantified the quality of the oscillators and switches by computing relative volumes in parameter space reproducing the sought dynamical behavior. All single gene systems need finely tuned parameters in order to oscillate, but bistable switches are more robust against parameter changes. We expected non-monotonic switches to be faster than monotonic ones, however solutions combining both auto-activation and repression in the physiological range to obtain fast switches are scarce. Our analysis shows that the Ss-LrpB system can not provide a bistable switch and that robust oscillations are unlikely. Gillespie simulations suggest that the function of the natural Ss-LrpB system is sensing via a spiking behavior, which is in line with the fact that this protein has a metabolic regulatory function and binds to a ligand.
Confounding, Mediation, or Independent Effect? Childhood Psychological Abuse, Mental Health, Mood/Psychological State, COPD, and Migraine

In some settings, it may be difficult to differentiate between a confounder and a mediator. For instance, the observed association of self-reported childhood psychological abuse (CPA) with onset of chronic obstructive pulmonary disease (COPD) and migraine may be confounded by current mood/psychological state (e.g., the subjective evaluation of one’s own affective state), as well as mediated by an individual’s psychopathological symptoms. In this study, we propose the “independence hypothesis,” which could prove meaningful to explore in data that lack prospective or objective indices of CPA. We used cross-sectional data from wave VI (2007-2008) of the Tromsø Study, Norway (N = 12,981). The associations between CPA and COPD and migraine were assessed with Poisson regression models. CPA was associated with a 46% increased risk of COPD (relative risk [RR] = 1.46, 95% confidence interval [CI]: [1.02, 1.90]) and a 28% increased risk of migraine in adulthood (RR = 1.28, 95% CI: [1.04, 1.53]), independent of age, sex, parental history of psychiatric problems/asthma/dementia, smoking, respondent’s mood/psychological state, and mental health. These findings suggest that the association between retrospectively reported CPA and COPD and migraine is not driven entirely by respondent’s mood/psychological state and mental health. Assessing the independent effect of self-reported CPA on COPD and migraine in retrospective studies may prove more meaningful than exploring the mediating role of mental health. Here, we provide the analytical rationale for assessing the independent effect in settings where it is difficult to differentiate between a confounder and a mediator. Moreover, we provide a theoretical rationale for assessing the independent effect of retrospectively reported childhood adversity on health and well-being.
Inactivation of yellow fever virus in plasma after treatment with methylene blue and visible light and in platelet concentrates following treatment with ultraviolet C light

Yellow fever virus (YFV) is endemic to tropical and subtropical areas in South America and Africa, and is currently a major public health threat in Brazil. Transfusion transmission of the yellow fever vaccine virus has been demonstrated, which is indicative of the potential for viral transfusion transmission. An approach to manage the potential YFV transfusion transmission risk is the use of pathogen inactivation (PI) technology systems, such as THERAFLEX MB‐Plasma and THERAFLEX UV‐Platelets (Macopharma). We aimed to investigate the efficacy of these PI technology systems to inactivate YFV in plasma or platelet concentrates (PCs).
Does prucalopride reduce the dose of sodium phosphate in bowel preparation? A single‐blind, randomized, and prospective study

Sodium phosphate solution (NaP) in oral form is well known and frequently used for good quality bowel cleansing before a colonoscopy, but it carries the potential risk of electrolyte disturbance and dehydration. Prucalopride mitigates severe constipation by promoting colon motility. We evaluated the hypothesis that prucalopride plus one single dose of 45 mL NaP could be used as an alternative bowel preparation.
A new approach for real-time multiple open-circuit fault diagnosis in voltage source inverters

Practically all the diagnostic methods for open-circuit faults in voltage source inverters (VSI) developed during the last decades, are focused on the occurrence of single faults and do not have the capability to handle and identify multiple failures. This paper presents a new method for real-time diagnostics of multiple open-circuit faults in voltage source inverters feeding ac machines. In contrast with the majority of the methods found in the literature which are based on the motor phase currents average values, the average absolute values are used here as principal quantities in order to formulate the diagnostic variables. These prove to be more robust against the issue of false alarms, carrying also information about multiple open-circuit failures. Furthermore, by the combination of these variables with the machine phase currents average values, it is possible to obtain characteristic signatures, which allow for the detection and identification of single and multiple open-circuit faults.
Cervical restoration and the amount of soft tissue coverage achieved by coronally advanced flap: a 2-year follow-up randomized-controlled clinical trial.

BACKGROUND The aim of this study was to evaluate the 2-year follow-up success of the treatment of gingival recession associated with non-carious cervical lesions by a coronally advanced flap (CAF) alone or in combination with a resin-modified glass ionomer restoration (CAF+R). MATERIAL AND METHODS Sixteen patients with bilateral Miller Class I buccal gingival recessions, associated with non-carious cervical lesions, were selected. The defects received either CAF or CAF+R. Bleeding on probing (BOP), probing depth (PD), relative gingival recession (RGR), clinical attachment level (CAL) and cervical lesion height (CLH) coverage were measured at the baseline and 6, 12 and 24 months after the treatment. RESULTS Both groups showed statistically significant gains in CAL and soft tissue coverage. The differences between groups were not statistically significant in BOP, PD, RGR and CAL, after 2 years. The percentages of CLH covered were 51.57 +/- 17.2% for CAF+R and 53.87 +/- 12.6% for CAF (p>0.05). The estimated root coverage was 80.37 +/- 25.44% for CAF+R and 83.46 +/- 20.79% for CAF (p>0.05). CONCLUSION Within the limits of the present study, it can be concluded that both procedures provide acceptable soft tissue coverage after 2 years, with no significant differences between the two approaches.