bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structure–mechanical property relationships in acrylate networks
Authors: Anastasio Rosaria , Cardinaels Ruth , Peters Gerrit W. M. , van Breemen Lambèrt C. A. 
Published: October 2019

ABSTRACTThe objective of this work is to investigate the effect of the molecular mobility and resin formulation of UV‐curable acrylate systems on conversion and ultimate mechanical properties. Thin single‐layer films are produced from a series of nine mixtures of bisphenol A ethoxylate diacrylate, having different molecular weights (BisDAn = 2, BisDAn = 4, and a 50/50 mixture), with different amounts of tetraethylene glycol diacrylate (TEGDA) (0, 10, and 30 wt %). Fourier transform infrared analysis, tensile, and dynamic mechanical tests are carried out on UV post‐cured resins, and the results are correlated with the amount of TEGDA. A higher content of TEGDA gives rise to an increase in conversion and glass‐transition temperature. Tests on pure BisDAn = 2 and mixtures of BisDAn = 2 and BisDAn = 4 (BisDAn = 2 + 4) show that with increasing TEGDA content, the crosslink density increases. An increase in molecular weight of the acrylate monomer changes the final mechanical properties of UV‐cured products. A material having a rubber behavior is the result of this change. Next to UV post‐curing, the effect of thermal post‐curing is studied. The results show that thermal treatments affect the mechanical properties mainly if the polymer has a low crosslink density. Formulations highly loaded with TEGDA lead to polymers with high crosslink density, low network mobility, and consequently low mechanical properties if thermally treated. Correlations between, on the one hand, resin formulation and process conditions and, on the other hand, the final mechanical properties of UV‐cured systems are established allowing to optimize the structure–mechanical properties relationship in acrylate networks. © 2019 The Authors. Journal of Applied Polymer Science published by Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48498.
High gas permselectivity in ZIF‐302/polyimide self‐consistent mixed‐matrix membrane
Authors: Ghanem Akram S. , Ba‐Shammakh Mohamed , Usman Muhammad , Khan M. Faizan , Dafallah Hatim , Habib Mohamed A. M. , Al‐Maythalony Bassem A. 
Published: October 2019

ABSTRACTZeolitic imidazolate framework‐302 (ZIF‐302) was incorporated within a polyimide (PI) matrix in order to develop a highly selective and permeable mixed‐matrix membrane (MMM) for gas separation processes. On the basis of varying fabrication procedures, two different MMMs were formed: a dense MMM (ZIF‐302/d‐PI) and a spongy, self‐consistent MMM (ZIF‐302/s‐PI). The spongy membrane was shown to have self‐consistent and disconnected pores with a reduction in overall membrane density. For ZIF‐302/d‐PI, a 1.2–1.5‐fold increase in the permeability of H2, O2, N2, CO2, and CH4 was observed when compared with the pure d‐PI membrane. For ZIF‐302/s‐PI, even better improvements (up to 19‐fold higher) in permeance were achieved with negligible effects on selectivity. The gas transport mechanism was then analyzed and showed a considerable enhancement of diffusion coefficients for ZIF‐302/s‐PI, while ideal gas pair selectivities for CO2/N2, H2/CH4, and H2/N2 were found to be 24.8, 42.3, and 62.6, respectively. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48513.
Swelling and rheological study of calcium phosphate filled bacterial cellulose‐based hydrogel scaffold
Authors: Basu Probal , Saha Nabanita , Saha Petr 
Published: October 2019

ABSTRACTThis work focuses mainly about swelling and rheological properties of calcium phosphate filled bacterial cellulose (BC)‐based hydrogel scaffolds. Calcium phosphate is incorporated in the form of hydroxyapatite (HA) and β‐tricalcium phosphate (β‐TCP) in different ratios, that is, 00:00, 10:90, 20:80, 40:60, 50:50, and 60:40. These scaffolds are also comprised with polyvinylpyrrolidone (PVP), poly(ethylene glycol), agar, and glycerin; designated as “BC‐PVP” and “BC‐PVP‐β‐TCP/HA.” All the hydrogel scaffolds are showing the notable viscoelastic property at 28 and 37 °C temperatures. The degree of swelling is found significant in BC‐PVP‐β‐TCP/HA_50:50 scaffold and it is notably elastic at 37 °C after 5 min of swelling. However, after 60 min of swelling and at equilibrium swelling state, the elastic property of BC‐PVP‐β‐TCP/HA_20:80 is revealed the highest. Considering the degree of swelling and rheological properties, the BC‐PVP‐β‐TCP/HA_50:50 and BC‐PVP‐β‐TCP/HA_20:80 hydrogel scaffolds found suitable for their application in bone tissue engineering or bone tissue regeneration. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48522.
Starch‐based biodegradable hydrogel as seed coating for corn to improve early growth under water shortage
Authors: Pathak Vaibhav , Ambrose R. P. Kingsly 
Published: October 2019

ABSTRACTIn this work, the effect of a biodegradable hydrogel as a seed coating on the early growth of corn seed was studied. The hydrogel was a succinate‐modified potato starch, and it had an equilibrium water absorption capacity of 260 g distilled water (DW)/g hydrogel. To coat corn seeds, the seeds were slightly wetted with an aqueous adhesive solution and then, in a closed container, mixed with a dry mixture of the modified starch (MS), bentonite, and talc. The damp coated seeds were air‐dried at 40 °C for 24 h. The seed emergence and postemergence growth of coated and uncoated seeds were assessed with respect to: (1) the amount of MS on coated seeds, and (2) the available water supply. At a water supply of 77% field capacity (FC), the coated seeds showed a significantly higher rate of emergence than uncoated seeds—however, only a minor improvement was observed at higher and lower water supply levels (92, 82, and 65% FC, respectively). This indicates that, while poor water absorption by hydrogel at low water supply (65% FC) has limited benefit to seed water availability, the effect of good water retention by the hydrogel at high water supply (92, 82% FC) appears redundant in the presence high soil water availability. After 14 and 21 days of growth, the dry weights of the corn plants' roots and shoots did not significantly differ between coated and uncoated seeds, which indicate that, after seed emergence and root development, the contribution of the hydrogel coating to the plant's water requirements becomes negligible. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48523.
Polypyrrole‐coated fiber‐scaffolds: Concurrent linear actuation and sensing
Authors: Harjo Madis , Zondaka Zane , Leemets Kaur , Järvekülg Martin , Tamm Tarmo , Kiefer Rudolf 
Published: October 2019

ABSTRACTConducting polymers such as polypyrrole (PPy) can be deposited on various substrates to obtain conductive electroactive coatings. While electrochemical coatings are generally considered to be more effective, chemical coatings are more industrially suitable, especially on complex substrates. In this work, we aimed to explore the electro‐chemo‐mechanical response of conductive fiber scaffolds (CFS) prepared by coating PPy (chemically) on glucose‐gelatin nanofibre scaffolds. Electroactivity was readily observed in both aqueous and propylene carbonate solutions of lithium bis(trifluoromethanesulfonyl)imide, with mainly anion activity in both cases. A higher actuation response was achieved in the aqueous solutions with strain in the range of 1.2% and stress in the range of 3 kPa. Under both cyclic voltammetry and square wave potential steps driving, stable actuation for over 100 cycles was maintained. In addition to actuation, the CFS samples exhibited concurrent sensory properties, in sensing current densities and mechanical load. The PPy‐coated CFS material functioning as both an actuator and a sensor is envisaged to have potential applications in smart materials, soft robotics or e‐skin. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2020,137, 48533.
The Arylabialis Muscle of the Túngara Frog (Engystomops pustulosus)
Authors: Lagorio Amy D. , Grewal Kiran , Djuhari Shanise , Le Kevin , Mulhim Ramson , Gridi‐Papp Marcos 
Published: October 2019

ABSTRACTThe current functional model of the anuran larynx includes four pairs of laryngeal muscles. Their contractions do not account, however, for the behavioral control of call complexity observed in male túngara frogs (Engystomops pustulosus), which optionally add a secondary note with distinct harmonic structure to their advertisement call. Examination of the túngara frog's laryngeal morphology through dissection and resin histology has revealed that the m. dilatator laryngis is divided into two separate bundles (superficial and deep). The superficial bundle closely matches the typical description of the m. dilatator laryngis and is well positioned to open the glottis. The deep bundle is exclusively innervated by the short laryngeal nerve and has an attachment to the fibrous mass, an internal laryngeal structure necessary for complex call production. This attachment indicates a separate role for the deep bundle in controlling the complexity of the call. Based on physical separation, exclusive attachments, distinct fiber orientation, exclusive innervation, and potential action, we recognize the deep bundle of the m. dilatator laryngis as a separate muscle. We also revalidate the name m. arylabialis which had been previously used to describe it. The split of the m. dilatator laryngis into two muscles results in a laryngeal innervation pattern that closely matches that of mammals. This study identified a novel laryngeal muscle in túngara frogs, a potential mechanism for the control of call complexity, and revealed new evidence of homologies between the laryngeal structures of amphibians and mammals. Anat Rec, 2019. © 2019 American Association for Anatomy Anat Rec, 303:1966–1976, 2020. © 2019 American Association for Anatomy
Cognitive behavioral treatment of insomnia in school‐aged children with autism spectrum disorder: A pilot feasibility study
Authors: McCrae Christina S. , Chan Wai Sze , Curtis Ashley F. , Deroche Chelsea B. , Munoz Melissa , Takamatsu Stephanie , Muckerman Julie E. , Takahashi Nicole , McCann Dillon , McGovney Kevin , Sahota Pradeep , Mazurek Micah O. 
Published: October 2019

Insomnia is common in autism and associated with challenging behavior and worse parent sleep. Cognitive behavioral treatment for childhood insomnia (CBT‐CI) is efficacious in typically developing children, but not yet tested in school‐aged children with autism. This single arm pilot tested 8‐session CBT‐CI in 17 children with autism and insomnia (M age = 8.76 years, SD = 1.99) and their parent(s) (M age = 39.50 years, SD = 4.83). Treatment integrity was assessed for each session [delivery (by therapist), receipt (participant understanding), and enactment (home practice)]. Children and parents wore actigraphs and completed electronic diaries for 2‐weeks to obtain objective and subjective sleep onset latency (SOL), total sleep/wake times (TST/TWT), and sleep efficiency (SE) at pre/post/1‐month follow‐up. Parents also completed the Aberrant Behavior Checklist [irritability, lethargy, stereotypy, hyperactivity, inappropriate speech (e.g., excessive/repetitive, loud self‐talk)] at pre/post/1‐month. Fifteen children completed all sessions. Average integrity scores were high [90%‐delivery/receipt, 87.5%‐enactment]. Parents found CBT‐CI helpful, age‐appropriate, and autism‐friendly. Paired samples t‐tests (family‐wise error controlled) found CBT‐CI improved child sleep (objective SOL‐18 min, TWT‐ 34 min, SE‐5%; subjective SOL‐29 min, TST‐63 min, TWT‐45 min, SE‐8%), and decreased irritability, lethargy, stereotypy, and hyperactivity. At 1‐month, objective TST improved, inappropriate speech decreased, but hyperactivity was no longer decreased. Other gains were maintained. Parent sleep (objective SOL‐12 min, TST‐35 min, TWT‐21 min, SE‐4%; subjective SOL‐11 min, TWT‐ 31min, SE‐11%) and fatigue also improved. At 1‐month, gains were maintained. This pilot shows CBT‐CI is a feasible treatment that holds promise for improving child and parent sleep and functioning and suggests a randomized controlled trial in school‐aged children with autism is worth conducting. Autism Res 2020, 13: 167–176. © 2019 International Society for Autism Research, Wiley Periodicals, Inc.Lay SummaryInsomnia is common in autism and associated with challenging behaviors and poor parent sleep and stress. Cognitive behavioral treatment for childhood insomnia (CBT‐CI) has not been tested in school‐aged children with autism. This pilot study shows therapists, parents, and children were able to use CBT‐CI to improve child and parent sleep, child behavior, and parent fatigue. Parents found CBT‐CI helpful, age‐appropriate, and autism‐friendly. CBT‐CI holds promise for treating insomnia in school‐aged children with autism and deserves further testing.
Randomized clinical trial of extensive intraoperative peritoneal lavage versus standard treatment for resectable advanced gastric cancer (CCOG 1102 trial)
Authors: Misawa K , Mochizuki Y , Sakai M , Teramoto H , Morimoto D , Nakayama H , Tanaka N , Matsui T , Ito Y , Ito S , Tanaka K , Uemura K , Morita S , Kodera Y 
Published: October 2019

Abstract

Background
A survival benefit of extensive intraoperative peritoneal lavage (EIPL) has been reported in patients with gastric cancer with positive peritoneal cytology. The hypothesis of this study was that EIPL may reduce peritoneal recurrence in patients with advanced gastric cancer who undergo surgery with curative intent.

Methods
This was an open-label, multi-institutional, randomized, phase 3 trial to assess the effects of EIPL versus standard treatment after curative gastrectomy for resectable gastric cancer of T3 status or above. The primary endpoint was disease-free survival (DFS); secondary endpoints were overall survival, peritoneal recurrence-free survival and incidence of adverse events.

Results
Between July 2011 and January 2014, 314 patients were enrolled from 15 institutions and 295 patients were analysed (145 and 150 in the EIPL and no-EIPL groups respectively). The 3-year DFS rate was 63·9 (95 per cent c.i. 55·5 to 71·2) per cent in the EIPL group and 59·7 (51·3 to 67·1) per cent in the control group (hazard ratio (HR) 0·81, 95 per cent c.i. 0·57 to 1·16; P = 0·249). The 3-year overall survival rate was 75·0 (67·1 to 81·3) per cent in the EIPL group and 73·7 (65·9 to 80·1) per cent in the control group (HR 0·91, 0·60 to 1·37; P = 0·634). Peritoneal recurrence-free survival was not significantly different between the two groups (HR 0·92, 0·62 to 1·36; P = 0·676). No intraoperative complications related to EIPL were observed.

Conclusion
EIPL did not improve survival or peritoneal recurrence in patients who underwent gastrectomy for advanced gastric cancer. Registration number: 000005907 (http://www.umin.ac.jp/ctr/index.htm).
Effect of donor nephrectomy time during circulatory-dead donor kidney retrieval on transplant graft failure
Authors: Heylen L , Pirenne J , Samuel U , Tieken I , Coemans M , Naesens M , Sprangers B , Jochmans I 
Published: October 2019

Abstract

Background
When the blood supply ceases in a deceased organ donor, ischaemic injury starts. Kidneys are cooled to reduce cellular metabolism and minimize ischaemic injury. This cooling is slow and kidneys are lukewarm during nephrectomy. Smaller single-centre studies have shown that prolonged donor nephrectomy time decreases early kidney transplant function, but the effect on long-term outcome has never been investigated in large multicentre cohort studies.

Methods
The relationship between donor nephrectomy time and death-censored graft survival was evaluated in recipients of single adult-to-adult, first-time deceased-donor kidneys transplanted in the Eurotransplant region between 2004 and 2013.

Results
A total of 13 914 recipients were included. Median donor nephrectomy time was 51 (i.q.r. 39–65) min. Kidneys donated after circulatory death had longer nephrectomy times than those from brain-dead donors: median 57 (43–78) versus 50 (39–64) min respectively (P &lt; 0·001). Donor nephrectomy time was independently associated with graft loss when kidneys were donated after circulatory death: adjusted hazard ratio (HR) 1·05 (95 per cent c.i. 1·01 to 1·09) per 10-min increase (P = 0·026). The magnitude of this effect was comparable to the effect of each hour of additional cold ischaemia: HR 1·04 (1·01 to 1·07) per h (P = 0·004). For kidneys donated after brain death, there was no effect of nephrectomy time on graft survival: adjusted HR 1·01 (0·98 to 1·04) per 10 min (P = 0·464).

Conclusion
Prolonged donor nephrectomy time impairs graft outcome in kidneys donated after circulatory death. Keeping this short, together with efficient cooling during nephrectomy, might improve outcome.
Systematic review of the current status of cadaveric simulation for surgical training
Authors: James H K , Chapman A W , Pattison G T R , Griffin D R , Fisher J D 
Published: October 2019

AbstractBackgroundThere is growing interest in and provision of cadaveric simulation courses for surgical trainees. This is being driven by the need to modernize and improve the efficiency of surgical training within the current challenging training climate. The objective of this systematic review is to describe and evaluate the evidence for cadaveric simulation in postgraduate surgical training.MethodsA PRISMA-compliant systematic literature review of studies that prospectively evaluated a cadaveric simulation training intervention for surgical trainees was undertaken. All relevant databases and trial registries were searched to January 2019. Methodological rigour was assessed using the widely validated Medical Education Research Quality Index (MERSQI) tool.ResultsA total of 51 studies were included, involving 2002 surgical trainees across 69 cadaveric training interventions. Of these, 22 assessed the impact of the cadaveric training intervention using only subjective measures, five measured impact by change in learner knowledge, and 23 used objective tools to assess change in learner behaviour after training. Only one study assessed patient outcome and demonstrated transfer of skill from the simulated environment to the workplace. Of the included studies, 67 per cent had weak methodology (MERSQI score less than 10·7).ConclusionThere is an abundance of relatively low-quality evidence showing that cadaveric simulation induces short-term skill acquisition as measured by objective means. There is currently a lack of evidence of skill retention, and of transfer of skills following training into the live operating theatre.
Resting‐state functional magnetic resonance imaging versus task‐based activity for language mapping and correlation with perioperative cortical mapping
Authors: Lemée Jean‐Michel , Berro David Hassanein , Bernard Florian , Chinier Eva , Leiber Louis‐Marie , Menei Philippe , Ter Minassian Aram 
Published: October 2019

AbstractIntroductionPreoperative language mapping using functional magnetic resonance imaging (fMRI) aims to identify eloquent areas in the vicinity of surgically resectable brain lesions. fMRI methodology relies on the blood‐oxygen‐level‐dependent (BOLD) analysis to identify brain language areas. Task‐based fMRI studies the BOLD signal increase in brain areas during a language task to identify brain language areas, which requires patients' cooperation, whereas resting‐state fMRI (rsfMRI) allows identification of functional networks without performing any explicit task through the analysis of the synchronicity of spontaneous BOLD signal oscillation between brain areas. The aim of this study was to compare preoperative language mapping using rsfMRI and task fMRI to cortical mapping (CM) during awake craniotomies.MethodsFifty adult patients surgically treated for a brain lesion were enrolled. All patients had a presurgical language mapping with both task fMRI and rsfMRI. Identified language networks were compared to perioperative language mapping using electric cortical stimulation.ResultsResting‐state fMRI was able to detect brain language areas during CM with a sensitivity of 100% compared to 65.6% with task fMRI. However, we were not able to perform a specificity analysis and compare task‐based and rest fMRI with our perioperative setting in the current study. In second‐order analysis, task fMRI imaging included main nodes of the SN and main areas involved in semantics were identified in rsfMRI.ConclusionResting‐state fMRI for presurgical language mapping is easy to implement, allowing the identification of functional brain language network with a greater sensitivity than task‐based fMRI, at the cost of some precautions and a lower specificity. Further study is required to compare both the sensitivity and the specificity of the two methods and to evaluate the clinical value of rsfMRI as an alternative tool for the presurgical identification of brain language areas.
Psychogenic nonepileptic seizures in pediatric population: A review
Authors: Operto Francesca Felicia , Coppola Giangennaro , Mazza Roberta , Pastorino Grazia Maria Giovanna , Campanozzi Stella , Margari Lucia , Roccella Michele , Marotta Rosa , Carotenuto Marco 
Published: October 2019

AbstractIntroductionPsychogenic nonepileptic seizures (PNES) are observable abrupt paroxysmal changes in behavior or consciousness that resemble epileptic seizures, but without concurrent electroencephalographic abnormalities.MethodsIn this manuscript, we reviewed literature concerning pediatric PNES and focused on those articles published in the last 10 years, in order to try to understand what the state of the art is at the moment, particularly as regards relationship and differential diagnosis with epilepsy.ResultsPsychogenic nonepileptic seizures have been extensively described in literature mainly in adults and less frequently in children. Despite the potential negative impact of a misdiagnosis (unnecessary investigations and antiepileptic drugs, structured pathological behavioral patterns), in literature there is little information regarding the real prevalence, clinical features, treatment, and outcome of PNES in children and adolescents.ConclusionPsychogenic nonepileptic seizures are common but frequently missed entity in pediatric population. Diagnosis could be difficult, especially in those children who have both epileptic and nonepileptic seizures; video EEG and home video can help clinicians in diagnosis. More studies are needed to better classify PNES in children and facilitate diagnosis and treatment.