bluuebunny/crossref_metadata_2025_split huggingface dataset:
Diabetes Mellitus in Pediatric Patients with Cystic Fibrosis
Authors: Álvarez Ortega Sofía , Serrano-Gómez Diego 
Published: July 2019

Introducción: La Fibrosis Quística (FQ) es una enfermedad hereditaria recesiva que afecta a varios órganos, fundamentalmente de los aparatos respiratorio y digestivo. La Diabetes Relacionada con la Fibrosis Quística (DRFQ) es una de sus principales complicaciones.Objetivos: Estudiar las complicaciones específicas de los pacientes pediátricos que padecen DRFQ y cómo afectan a su calidad de vida. Comparar las tasas de mortalidad de los pacientes pediátricos con FQ y con DRFQ. Poner de manifiesto la importancia del personal de enfermería en el manejo de los pacientes pediátricos con DRFQ.Metodología: Se llevó a cabo una revisión bibliográfica sistemática. Se incluyeron estudios publicados, en inglés y castellano, durante los últimos 10 años, y que analizaban una muestra de población de entre 0 y 9 años con FQ y/o DRFQ.Resultados: Se utilizaron 4 bases de datos para la búsqueda sistemática. Se analizaron 10 artículos para la resolución de los objetivos.Conclusiones: Las complicaciones que provocan la DRFQ, y los cuidados que requieren afectan a la calidad de vida de los pacientes. La progresión del diagnóstico y los tratamientos ha hecho que mejore su calidad de vida y que la diferencia de mortalidad entre los pacientes con FQ y con DRFQ se reduzca. El personal enfermero que atiende a los niños con DRFQ es un recurso de información esencial para los pacientes y sus familias. Las enfermeras deben transmitir la importancia de la adhesión a los tratamientos para conseguir una mejor calidad de vida.

Introduction: Cystic Fibrosis (CF) is a hereditary recessive disease that affects several organs, mainly within the respiratory and digestive systems. Cystic Fibrosis Related Diabetes (CFRD) is one of its main complications.Objectives: To study the specific complications of pediatric patients suffering from CFRD and how they affect a patient’s quality of life. To compare the mortality rates of pediatric patients with CF and with CFRD. To highlight the importance of nurses in the management of pediatric patients with CFRD.Methodology: A systematic bibliographic review was conducted. We included studies, in English and Spanish, published over the last 10 years, which analysed a population aged between 0 and 9 years old with CF and/or CFRD.Results: Four databases were used for the systematic search. We analysed 10 articles to address the objectives.Conclusions: The complications caused by CFRD and the care that patients require affect the patient’s quality of life. Progress both with diagnosis and with treatment has improved the quality of life of patients, and has contributed to reductions in the difference between the mortality rates of patients with CF and without CFRD. Nurses who care for children with CFRD are essential as an information resource for patients and their families. Nurses must convey the importance of therapeutic adherence to achieve a better quality of life.
Internet addiction and poor quality of life are significantly associated with suicidal ideation of senior high school students in Chongqing, China
Authors: Wang Wo , Zhou Dong Dong , Ai Ming , Chen Xiao Rong , Lv Zhen , Huang Yan , Kuang Li 
Published: July 2019

Background
Adolescence is a vulnerable period of life, and many mental health and behavioral problems emerge during this particular period, including depression, internet addiction (IA), and suicidal behaviors. Poor quality of life (QOL) and IA have been found to be significantly associated with suicidal ideation (SI) among Chinese university students, of whom most have been adults. Nevertheless, their associations with SI are rarely studied among Chinese adolescents. The objective of this study was to examine these relationships in a representative adolescent sample of Chinese senior high school students, who are experiencing an enormous transition from childhood to adulthood.

Methods
By using multi-stage sampling, a total of 26,688 students were successfully recruited from 29 senior high schools of a very large City in western China, Chongqing municipality. In this cross-sectional online survey, students’ demographic and lifestyle characteristics were collected with a standardized questionnaire. The Young’s IA Test, the Chinese Six-item QOL questionnaire, and item 15 of the Symptom Checklist-90-R were used to measure IA, QOL, and SI, respectively.

Results
The 1-month prevalence of SI was 11.5% among students of senior high schools in Chongqing, China. Students with SI had significantly higher QOL scores (17.3 ± 3.7 vs. 13.7 ± 3.8, P < 0.001) and higher prevalence of IA (49.6% vs. 25.6%, P < 0.001) than those without SI. After controlling for demographic, lifestyle, and clinical covariates, IA (odd ratio (OR) = 1.15, P = 0.003) and a high QOL score (OR = 1.09, P < 0.001) remained significantly associated with SI.

Conclusion
Suicidal ideation is prevalent among Chinese adolescents and it is associated with IA and poor QOL. Measures aimed at reducing IA and improving QOL may help prevent suicidal behaviors among Chinese adolescents.
Factors Associated to the Non-adherence to Vaccination Appointments in the Ngambe Health District, Littoral Region, Cameroon: A Case Control Study
Authors: Nkenyi Rene , Telep Daniel , Ndip Lucy , Nsagha Dickson 
Published: July 2019

Background: Vaccination is what is strongly recommended in protecting against childhood diseases. The Expanded Program of Immunization (EPI) in Cameroon started in 1976 as a pilot project and became operational all over the country in 1982 where vaccination is seen a fundamental right of every child in the country. However, rural areas have lots of constrains to the effective implementation of vaccination programs some of which are population-related.
Purpose: This study aimed to assess the association between some factors and adherence to vaccination appointments in Ngambe Health District; a typical rural health district in Cameroon.
Methods: This was a case control study where the vaccination records of health facilities in the district were reviewed and parents who respected their vaccination appointments formed the controls while those who missed a vaccination appointment were the cases. They were then traced for interviewed and data analyzed using Epi infos version 3.5.4.
Results: Out of 94 parents, 37.2% had missed a vaccination appointment. In parents older than 36, the odds of missing an appointment was 11 (95%CI 3.69-34.43) while those with <4 children were 0.10 less likely to miss an appointment (95%CI 0.04-0.28). Parent’s education, household size and ANC attendance also influenced adherence to vaccination appointments. After adjustment, only age and whether or not child was born in the hospital remained statistically significant associated with adherence.
Conclusion: User related factors influence uptake of vaccination services in the Ngambe Health District of Cameroon; a rural area, some of which are age of the parents, number of children the parent has and the total household size. Therefore, adding to the availability of vaccines, a high-level political commitment aimed at increasing utilization of health services and effectively taking vaccination to the population are indispensable.
RAC1 inhibition reverses cisplatin resistance in esophageal squamous cell carcinoma and induces downregulation of glycolytic enzymes
Authors: Zeng Rui‐Jie , Zheng Chun‐Wen , Gu Jing‐E , Zhang Hai‐Xia , Xie Lei , Xu Li‐Yan , Li En‐Min 
Published: July 2019

Development of chemoresistance remains a major challenge in treating esophageal squamous cell carcinoma (ESCC) patients despite treatment advances. However, the role of RAC1 in chemoresistance of ESCC and the underlying mechanisms remain largely unknown. In this study, we found that higher levels of RAC1 expression were associated with poorer prognosis in ESCC patients. Enhanced RAC1 expression increased cell proliferation, migration, and chemoresistance in vitro. Combination therapy using RAC1 inhibitor EHop‐016 and cisplatin significantly promoted cell viability inhibition, G2/M phase cycle arrest, and apoptosis when compared to each monotherapy. Mechanistically, glycolysis was significantly downregulated in the RAC1 inhibitor monotherapy group and the combination group via inhibiting AKT/FOXO3a signaling when compared to the control group. Moreover, the silencing of RAC1 inhibited AKT/FOXO3a signaling and cell glycolysis while the upregulation of RAC1 produced an opposite effect. In murine xenograft models, the tumor volume and the expression of glycolytic enzymes were significantly reduced in combination therapy when compared to each monotherapy group. Overall, our study demonstrates that targeting RAC1 with an inhibitor overcomes cisplatin resistance in ESCC by suppressing glycolytic enzymes, which provides a promising strategy for treatment of ESCC in clinical practice.
Intraband Cooling in All‐Inorganic and Hybrid Organic–Inorganic Perovskite Nanocrystals
Authors: Diroll Benjamin T. , Schaller Richard D. 
Published: July 2019

AbstractIntraband relaxation in all‐inorganic cesium lead tribromide (CsPbBr3) and hybrid organic–inorganic formamidinium lead tribromide (FAPbBr3) nanocrystals is experimentally investigated for a range of particle sizes, excitation energies, sample temperatures, and excitation fluences. Hot carriers in CsPbBr3 nanocrystals consistently exhibit slower cooling than FAPbBr3 nanocrystals in the single electron–hole pair per nanocrystal regime. In both compositions, long‐lived hot carriers (>3 ps) are only observed at excitation densities corresponding to production of multiple electron–hole pairs per nanocrystal—and concomitant Auger recombination. These presented results are distinct from previous reports in bulk hybrid perovskite materials that convey persistent hot carriers at low excitation fluences. Time‐resolved photoluminescence confirms the rapid cooling of carriers in the low‐fluence (single electron–hole pair per nanocrystal) regime. Intraband relaxation processes, as a function of excitation energy, size, and temperature are broadly consistent with other nanocrystalline semiconductor materials.
Multifunctional Optoelectronics via Harnessing Defects in Layered Black Phosphorus
Authors: Ahmed Taimur , Kuriakose Sruthi , Abbas Sherif , Spencer Michelle J. S. , Rahman Md. Ataur , Tahir Muhammad , Lu Yuerui , Sonar Prashant , Bansal Vipul , Bhaskaran Madhu , Sriram Sharath , Walia Sumeet 
Published: July 2019

AbstractLayered black phosphorus (BP), a promising 2D material, tends to oxidize under ambient conditions. While such defective BP is typically considered undesirable, defect engineering has in fact been exploited in contemporary materials to create new behaviors and functionalities. In this spirit, new opportunities arising from intrinsic defect states in BP, particularly through harnessing unique photoresponse characteristics, and demonstrating three distinct optoelectronic applications are demonstrated. First, the ability to distinguish between UV‐A and UV‐B radiations using a single material that has tremendous implications for skin health management is shown. Second, the same device is utilized to show an optically stimulated mimicry of synaptic behavior opening new possibilities in neuromorphic computing. Third, it is shown that serially connected devices can be used to perform digital logic operations using light. The underpinning photoresponse is further translated on flexible substrates, highlighting the viability of the technology for mechanically conformable and wearable systems. This demonstration paves the way toward utilizing the unexplored potential offered by defect engineering of 2D materials for applications spanning across a broad range of disciplines.
Electrically Pore‐Size‐Tunable Polypyrrole Membrane for Antifouling and Selective Separation
Authors: Tan Xiao , Hu Chengzhi , Zhu Zongqiang , Liu Huijuan , Qu Jiuhui 
Published: July 2019

AbstractAntifouling and selectivity are major challenges for membrane separation technology. Herein, a polypyrrole‐dodecylbenzene sulfonate (PPy‐DBS) membrane with tunable pores is fabricated to alleviate pore blocking and achieve selective separation. The insertion/extraction of ions during the electrical redox process causes the change of PPy‐DBS volume, so that the membrane pores can be tuned in situ by applying an external redox potential. The pore size of a fouled membrane is enlarged under an oxidation voltage, then the membrane is backwashed to eliminate foulants in the pores, after which membrane pore size is recovered under a reduction voltage. Thus, membrane fouling can be effectively alleviated by adjusting the membrane pore size combined with cleaning. The specific flux of PPy‐DBS membrane increased by 21.91% after applying the voltages and backwashing, and it exhibits great recycling performance. Moreover, the distribution of humic acid macromolecules in the permeate significantly decreased, proving the enhanced sieving effect of smaller membrane pores under negative voltage. This study provides an intelligent strategy for fouling prevention and selective separation in water treatment.
All‐Cellulose‐Based Quasi‐Solid‐State Sodium‐Ion Hybrid Capacitors Enabled by Structural Hierarchy
Authors: Xu Zhen , Xie Fei , Wang Jing , Au Heather , Tebyetekerwa Mike , Guo Zhenyu , Yang Shengyuan , Hu Yong‐Sheng , Titirici Maria‐Magdalena 
Published: July 2019

AbstractNa‐ion hybrid capacitors consisting of battery‐type anodes and capacitor‐style cathodes are attracting increasing attention on account of the abundance of sodium‐based resources as well as the potential to bridge the gap between batteries (high energy) and supercapacitors (high power). Herein, hierarchically structured carbon materials inspired by multiscale building units of cellulose from nature are assembled with cellulose‐based gel electrolytes into Na‐ion capacitors. Nonporous hard carbon anodes are obtained through the direct thermal pyrolysis of cellulose nanocrystals. Nitrogen‐doped carbon cathodes with a coral‐like hierarchically porous architecture are prepared via hydrothermal carbonization and activation of cellulose microfibrils. The reversible charge capacity of the anode is 256.9 mAh g−1 when operating at 0.1 A g−1 from 0 to 1.5 V versus Na+/Na, and the discharge capacitance of cathodes tested within 1.5 to 4.2 V versus Na+/Na is 212.4 F g−1 at 0.1 A g−1. Utilizing Na+ and ClO4− as charge carriers, the energy density of the full Na‐ion capacitor with two asymmetric carbon electrodes can reach 181 Wh kg−1 at 250 W kg−1, which is one of the highest energy devices reported until now. Combined with macrocellulose‐based gel electrolytes, all‐cellulose‐based quasi‐solid‐state devices are demonstrated possessing additional advantages in terms of overall sustainability.
Large Increase in External Quantum Efficiency by Dihedral Angle Tuning in a Sky‐Blue Thermally Activated Delayed Fluorescence Emitter
Authors: Huang Wenliang , Einzinger Markus , Maurano Andrea , Zhu Tianyu , Tiepelt Jan , Yu Chao , Chae Hyun Sik , Van Voorhis Troy , Baldo Marc A. , Buchwald Stephen L. 
Published: July 2019

AbstractEfficient and stable blue emitters for organic light‐emitting diodes are urgently needed for next‐generation display and lighting applications. The discovery of thermally activated delayed fluorescence (TADF) has revealed a new class of promising candidates. After pairing the iminodibenzyl donor with the triazine acceptor via a phenylene linker, dihedral angle tuning is employed to regulate the difference between the energy levels of singlet and triplet excited states. Enhanced reverse intersystem crossing rates are observed in response to increased methylation at the phenylene linker. This behavior agrees with the density functional theory calculations. Photoluminescence quantum yields of up to 98% are achieved upon doping into a solid‐state matrix. When incorporated in devices, the maximum external quantum efficiency is 28.3% for the emitter with the most favorable trade‐off between singlet–triplet splitting and fluorescent oscillator strength. This result highlights the general applicability of dihedral angle tuning, a molecular design strategy that can be used to improve the performance of donor–acceptor type TADF emitters without significantly changing their emission spectra.
Revealing the pH‐Dependent Photoluminescence Mechanism of Graphitic C3N4 Quantum Dots
Authors: Zhou Zhaobo , Niu Xianghong , Ma Liang , Wang Jinlan 
Published: July 2019

AbstractGraphitic C3N4 quantum dots (g‐C3N4 QDs), as a kind of widely explored fluorescent materials, show pH‐dependent photoluminescence feature. However, opposite variation tendencies on their pH‐dependent photoluminescence performance are observed in different experiments and the underlying mechanism remains unclear. Herein, based on time‐dependent density functional theory and nonadiabatic molecular dynamics simulations, a synergistic mechanism between light absorption and radiative/nonradiative recombination of g‐C3N4 QDs in neutral and acidic conditions is proposed to address the inconformity. Specifically, under weak acidic condition, the strong light absorption and weak nonradiative recombination of g‐C3N4 QDs yield strong fluorescence emission. While under strong acidic condition, although the light absorption remains high, the fast nonradiative electron‐hole recombination dramatically reduces the population of the excited state and the fluorescence is quenched consequently. The protonation of N atom changes the orbital composition of transition channels and frontier molecular orbital overlap, which consequently modulates the competition between radiative and nonradiative recombination as well as the emission performance. In addition, there is no obvious change in the variation tendency of absorption and emission properties of g‐C3N4 QDs with different functional groups, implying the general applicability of understanding.
Separator Modified by Cobalt‐Embedded Carbon Nanosheets Enabling Chemisorption and Catalytic Effects of Polysulfides for High‐Energy‐Density Lithium‐Sulfur Batteries
Authors: Cheng Zhibin , Pan Hui , Chen Jinqing , Meng Xueping , Wang Ruihu 
Published: July 2019

AbstractLithium‐sulfur (Li‐S) batteries are considered to be one of the promising next‐generation energy storage systems. Considerable progress has been achieved in sulfur composite cathodes, but high cycling stability and discharging capacity at the expense of volumetric capacity have offset their advantages. Herein, a functional separator is presented by coating cobalt‐embedded nitrogen‐doped porous carbon nanosheets and graphene on one surface of a commercial polypropylene separator. The coating layer not only suppresses the polysulfide shuttle effect through chemical affinity, but also functions as an electrocatalyst to propel catalytic conversion of intercepted polysulfides. The slurry‐bladed carbon nanotubes/sulfur cathode with 90 wt% sulfur deliver high reversible capacity of 1103 mA h g−1 and volumetric capacity of 1062 mA h cm−3 at 0.2 C, and the freestanding carbon nanofibers/sulfur cathode provides a high discharging capacity of 1190 mA h g−1 and volumetric capacity of 1136 mA h cm−3 at high sulfur content of 78 wt% and sulfur loading of 10.5 mg cm−2. The electrochemical performance is comparable with or even superior to those in the state‐of‐the‐art carbon‐based sulfur cathodes. The separator reported in this work holds great promise for the development of high‐energy‐density Li‐S batteries.
Minimally invasive surgery for large hiatal hernia
Authors: Omura Nobuo , Tsuboi Kazuto , Yano Fumiaki 
Published: July 2019

AbstractThe majority of large hiatal hernias are paraesophageal hiatal hernias (PEH). Once prolapse of the stomach to the chest cavity reaches a high degree, it is called an intrathoracic stomach. More than 25 years have elapsed since laparoscopic surgery was carried out as minimally invasive surgery for PEH. The feasibility and safety thereof has nearly been established. PEH may cause serious complications such as strangulation and perforation. The outcome of elective repair of PEH is better than emergent repair, so we should carry out elective repair as much as possible. Although not a major clinical problem, following PEH repair the rate of anatomical recurrence increases with age. In order to reduce the recurrence rate, mesh reinforcement by crural repair has been widely performed. Although this improves the short‐term outcomes, the long‐term outcomes are unclear. For PEH repair, fundoplication and gastropexy are believed desirable. We should select the procedure associated with a lower incidence of dysphagia and so on following surgery. While relaxing incision is useful for primary tension‐free closure, it has not contributed to improvement in the recurrence rate.
Dental abnormalities in individuals with pathogenic germline variation in DICER1
Authors: Choi Sooji , Lee Janice S. , Bassim Carol W. , Kushner Harvey , Carr Ann G. , Gardner Pamela J. , Harney Laura A. , Schultz Kris Ann P. , Stewart Douglas R. 
Published: July 2019

AbstractPathogenic germline variation in the microRNA processing gene DICER1 gives rise to an autosomal dominant, tumor‐predisposition disorder. Conditional deletion of Dicer1 in murine dental epithelium shows that it controls tooth patterning, size, number, and shape. The human dental phenotype of people with germline pathogenic variation in DICER1 is unknown. DICER1‐carriers (n = 57) and family controls (n = 55) were evaluated at the NIH Clinical Center dental clinic as part of a comprehensive medical evaluation. Digital panoramic radiographs, bite‐wing radiographs, and oral photographs were collected. A single observer, blind to DICER1 status, reviewed the dental records and determined the presence or absence of 11 dental characteristics as described in the clinic notes, radiographs, or oral photographs. Subjective phenotypes were reviewed on radiographs by two examiners (blind to DICER1 status) for the presence or absence of the dental characteristics to reduce inconsistencies. By simple association, bulbous crown, periodontitis, and taurodontism were all significant (p < .05). Logistic regression with chi‐square maximum likelihood estimates showed that bulbous crown and periodontitis remained significant. Recognition of these phenotypes may aid identification of individuals and families at risk for DICER1‐associated neoplasms. These findings may also guide dental care for individuals with germline DICER1 pathogenic variation.