bluuebunny/crossref_metadata_2025_split huggingface dataset:
DESARROLLO ECONÓMICO DE UN PUEBLO LACUSTRE: CAPULHUAC, ESTADO DE MÉXICO
Authors: Pillado Albarrán Karla Violeta , Romero-Contreras Alejandro Tonatiuh , Viesca-González Felipe Carlos , Zizumbo-Villareal Lilia 
Published: July 2017

Resumen. Capulhuac se localiza en la Cuenca del Alto Lerma en el Estado de México, en sus orígenes prehispánicos mantuvo un desarrollo sociocultural y económico lacustre. Durante la época colonial la población se dedicó a la producción y venta de pulque, a la cría de ganado menor, al comercio de estos productos y de los obtenidos de la ciénaga. En la década de 1940 comenzó la construcción del acueducto que dirige las aguas del Alto Lerma hacia el Distrito Federal, lo que disminuyó la cantidad de recursos lacustres para el sustento y el comercio, esto incrementó la explotación del maguey y la cría de ganado, para la elaboración de pulque y la manufactura de prendas de lana, respectivamente. La disponibilidad de estos elementos permitió el desarrollo de una economía fructífera basada en la preparación y comercialización de barbacoa, registrando actualmente al 80 por ciento de la población dentro de la cadena productiva de esta actividad.

Palabras clave: Barbacoa, Ciénagas de Lerma, Comercio regional, Economía tradicional, Modo de vida lacustre.

Abstract. Capulhuac is located in the Upper Lerma Basin in Mexico State; in their pre-Hispanic origins maintained a lakeside sociocultural and economic development. During the colonial period, the population was dedicated to the production and sale of pulque, the small livestock, and trade these products and those obtained from the basin. In the 1940s began the construction of the aqueduct that directs the waters of the Upper Lerma Basin to the Federal District, which decreased the amount of lake resources for sustenance and trade, this increased exploitation of the maguey and livestock, for pulque developing and manufacturing of woolens, respectively. The availability of these elements allowed the development of a productive economy based on production and marketing of barbacoa, currently registering 80 percent of the population in the productive chain of this activity.

Key words: Barbacoa, Upper Lerma Basin, Regional trade, Traditional economy, Mode lakeside life.
Design of Efficient Bifunctional Oxygen Reduction/Evolution Electrocatalyst: Recent Advances and Perspectives
Authors: Huang Zhen‐Feng , Wang Jiong , Peng Yuecheng , Jung Chi‐Young , Fisher Adrian , Wang Xin 
Published: July 2017

AbstractOxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are the two most important reactions in rechargeable metal‐air battery, a promising technology to meet the energy requirements for various applications. The development of low‐cost, highly efficient and stable bifunctional ORR/OER catalysts is critical for a large‐scale application of this technology. In this review, the authors first introduce the fundamentals of bifunctional ORR/OER electrocatalysis in alkaline electrolyte. Various types of nanostructured materials as bifunctional ORR/OER catalysts including metal oxide, hydroxide and sulfide, functional carbon material, metal, and their composites are then reviewed. The crucial factors that can be used to tune the activity of the catalyst towards ORR/OER are summarized, including (1) phase, morphology, crystal facet, defect, mixed‐metal and strain engineering for metal oxide; (2) heteroatom doping, topological defects, and formation of metal‐N‐C structure for carbon material; (3) alloy effect for metal. These experiences lay the foundation for large scale application of metal‐air battery and can also effectively guide the rational design of catalysts for other electrocatalytic reactions.
Molten‐NaNH2 Densified Graphene with In‐Plane Nanopores and N‐Doping for Compact Capacitive Energy Storage
Authors: Lin Shuang , Zhang Chunyan , Wang Zhiyong , Dai Sheng , Jin Xianbo 
Published: July 2017

AbstractCapacitive carbons are attractive for energy storage on account of their superior rate and cycling performance over traditional battery materials, but they usually suffer from a far lower volumetric energy density. Starting with expanded graphene, a simple, multifunctional molten sodium amide treatment for the preparation of high‐density graphene with high capacitive performance in both aqueous and lithium battery electrolytes is reported. The molten sodium amide can condense the expanded graphene, lead to nitrogen doping and, what is more important, create moderate in‐plane nanopores on graphene to serve as ion access shortcuts in dense graphene stacks. The resulting high‐density graphene electrode can deliver a volumetric capacitance of 522 F cm−3 in a potassium hydroxide electrolyte; and in a lithium‐ion battery electrolyte, it exhibits a gravimetric and volumetric energy density of 618 W h kg−1 and 740 W h L−1, respectively, and even outperforms commercial LiFePO4.
Chemical Synthesis of 3D Graphene‐Like Cages for Sodium‐Ion Batteries Applications
Authors: Cao Xinxin , Pan Anqiang , Liu Sainan , Zhou Jiang , Li Site , Cao Guozhong , Liu Jun , Liang Shuquan 
Published: July 2017

AbstractSodium (Na) super ion conductor structured Na3V2(PO4)3 (NVP) is extensively explored as cathode material for sodium‐ion batteries (SIBs) due to its large interstitial channels for Na+ migration. The synthesis of 3D graphene‐like structure coated on NVP nanoflakes arrays via a one‐pot, solid‐state reaction in molten hydrocarbon is reported. The NVP nanoflakes are uniformly coated by the in situ generated 3D graphene‐like layers with the thickness of 3 nm. As a cathode material, graphene covered NVP nanoflakes exhibit excellent electrochemical performances, including close to theoretical reversible capacity (115.2 mA h g−1 at 1 C), superior rate capability (75.9 mA h g−1 at 200 C), and excellent cyclic stability (62.5% of capacity retention over 30000 cycles at 50 C). Furthermore, the 3D graphene‐like cages after removing NVP also serve as a good anode material and deliver a specific capacity of 242.5 mA h g−1 at 0.1 A g−1. The full SIB using these two cathode and anode materials delivers a high specific capacity (109.2 mA h g−1 at 0.1 A g−1) and good cycling stability (77.1% capacity retention over 200 cycles at 0.1 A g−1).
Accelerated Optimization of TiO2/Sb2Se3 Thin Film Solar Cells by High‐Throughput Combinatorial Approach
Authors: Chen Chao , Zhao Yang , Lu Shuaicheng , Li Kanghua , Li Yang , Yang Bo , Chen Wenhao , Wang Liang , Li Dengbing , Deng Hui , Yi Fei , Tang Jiang 
Published: July 2017

AbstractSb2Se3, a V2‐VI3 compound semiconductor, has attracted extensive research attention in photovoltaics due to its non‐toxicity, low cost and earth‐abundant constituents. Herein, a combinatorial approach to optimize the performance of TiO2/Sb2Se3 thin film photovoltaics is employed. By simultaneously conducting a series of experiments in parallel rather than one after another, combinatorial strategy increases experimental throughput and reduces personnel costs. Key parameters such as TiO2 thickness, post‐annealing temperature and Sb2Se3 thickness are identified as 65 nm, 450 °C and 850 nm through the combinatorial approach. Finally, in combination with (NH4)2S back surface cleaning, TiO2/Sb2Se3 solar cells with 5.6% efficiency and decent stability are obtained, showcasing the power of high‐throughput strategy for accelerating the optimization of Sb2Se3 photovoltaics.
A Dual‐Carbon Battery Based on Potassium‐Ion Electrolyte
Authors: Ji Bifa , Zhang Fan , Wu Nanzhong , Tang Yongbing 
Published: July 2017

AbstractAlthough potassium‐ion batteries (KIBs) have been considered to be promising alternatives to conventional lithium‐ion batteries due to large abundance and low cost of potassium resources, their development still stays at the infancy stage due to the lack of appropriate cathode and anode materials with reversible potassium insertion/extraction as well as good rate and cycling performance. Herein, a novel dual‐carbon battery based on a potassium‐ion electrolyte (named as K‐DCB), utilizing expanded graphite as cathode material and mesocarbon microbead as anode material is developed. The working mechanism of the K‐DCB is investigated, which is further demonstrated to deliver a high reversible capacity of 61 mA h g‐1 at a current density of 1C over a voltage window of 3.0–5.2 V, as well as good cycling performance with negligible capacity decay after 100 cycles. Moreover, the high working voltage with medium discharge voltage of 4.5 V also enables the K‐DCB to meet the requirement of some high‐voltage devices. With the merits of environmental friendliness, low cost and high energy density, the K‐DCB shows attractive potential for future energy storage application.
Role of Microstructure in Oxygen Induced Photodegradation of Methylammonium Lead Triiodide Perovskite Films
Authors: Sun Qing , Fassl Paul , Becker‐Koch David , Bausch Alexandra , Rivkin Boris , Bai Sai , Hopkinson Paul E. , Snaith Henry J. , Vaynzof Yana 
Published: July 2017

AbstractThis paper investigates the impact of microstructure on the degradation rate of methylammonium lead triiodide (MAPbI3) perovskite films upon exposure to light and oxygen. By comparing the oxygen induced degradation of perovskite films of different microstructure–fabricated using either a lead acetate trihydrate precursor or a solvent engineering technique–it is demonstrated that films with larger and more uniform grains and better electronic quality show a significantly reduced degradation compared to films with smaller, more irregular grains. The effect of degradation on the optical, compositional, and microstructural properties of the perovskite layers is characterized and it is demonstrated that oxygen induced degradation is initiated at the layer surface and grain boundaries. It is found that under illumination, irreversible degradation can occur at oxygen levels as low as 1%, suggesting that degradation can commence already during the device fabrication stage. Finally, this work establishes that improved thin‐film microstructure, with large uniform grains and a low density of defects, is a prerequisite for enhanced stability necessary in order to make MAPbI3 a promising long lived and low cost alternative for future photovoltaic applications.
Inhibition of fibroblast growth factor receptor with AZD4547 mitigates juvenile nasopharyngeal angiofibroma
Authors: Le Tran , New Jacob , Jones Joel W. , Usman Shireen , Yalamanchali Sreeya , Tawfik Ossama , Hoover Larry , Bruegger Dan E. , Thomas Sufi Mary 
Published: July 2017

BackgroundJuvenile nasopharyngeal angiofibroma (JNA) is a benign tumor that presents in adolescent males. Although surgical excision is the mainstay of treatment, recurrences complicate treatment. There is a need to develop less invasive approaches for management. JNA tumors are composed of fibroblasts and vascular endothelial cells. We identified fibroblast growth factor receptor (FGFR) and vascular endothelial growth factor (VEGF) expression in JNA‐derived fibroblasts. FGFR influences fibroblast proliferation and VEGF is necessary for angiogenesis. We hypothesized that targeting FGFR would mitigate JNA fibroblast proliferation, invasion, and migration, and that targeting the VEGF receptor would attenuate endothelial tubule formation.MethodsAfter informed consent, fibroblasts from JNA explants of 3 patients were isolated. Fibroblasts were treated with FGFR inhibitor AZD4547, 0 to 25 μg/mL for 72 hours and proliferation was quantified using CyQuant assay. Migration and invasion of JNA were assessed using 24‐hour transwell assays with subsequent fixation and quantification. Mitigation of FGFR and downstream signaling was evaluated by immunoblotting. Tubule formation was assessed in human umbilical vein endothelial cells (HUVECs) treated with vehicle control (dimethylsulfoxide [DMSO]) or semaxanib (SU5416) as well as in serum‐free media (SFM) or JNA conditioned media (CM). Tubule length was compared between treatment groups.ResultsCompared to control, AZD4547 inhibited JNA fibroblast proliferation, migration, and invasion through inhibition of FGFR and downstream signaling, specifically phosphorylation of ‐ p44/42 mitogen activated protein kinase (p44/42 MAPK). JNA fibroblast CM significantly increased HUVEC tubule formation (p = 0.0039).ConclusionAZD4547 effectively mitigates FGFR signaling and decreases JNA fibroblast proliferation, migration, and invasion. SU5416 attenuated JNA fibroblast‐induced tubule formation. AZD4547 may have therapeutic potential in the treatment of JNA.
Randomized clinical trial of psychological support and sleep adjuvant measures for postoperative sleep disturbance in patients undergoing oesophagectomy
Authors: Scarpa M , Pinto E , Saraceni E , Cavallin F , Parotto M , Alfieri R , Nardi M T , Marchi M R , Cagol M , Castoro C , Saadeh L M , Caberlotto C , Caregaro L , Vianello A , Baratto F , Zaninotto G 
Published: July 2017

Abstract

Background
Major surgery such as oesophagectomy requires a postoperative stay in intensive care. Painful stimuli lead to sleep disturbance and impairment in quality of life. The aim of this study was to evaluate the effect of psychological counselling and sleep adjuvant measures on postoperative quality of sleep and quality of life.

Methods
This RCT was performed between January 2013 and October 2015. Patients undergoing oesophagectomy for cancer were randomized into one of four groups receiving: psychological counselling plus sleep adjuvant measures during the ICU stay; psychological counselling alone; sleep adjuvant measures alone during the ICU stay; or standard care. The primary endpoint was impairment in quality of life measured using the European Organisation for Research and Treatment of Cancer C30-QL2 questionnaire between admission for surgery and discharge from hospital. The secondary endpoint was impairment in quality of sleep assessed by means of the Pittsburgh Sleep Quality Index between admission for surgery and hospital discharge.

Results
The local ethics committee approved the early termination of the study because of relevant changes in the ICU setting. Some 87 patients were randomized and 74 patients were evaluated in the analysis. Psychological counselling reduced the impairment in quality of life (odds ratio 0·23, 95 per cent c.i. 0·09 to 0·61) and in quality of sleep (odds ratio 0·27, 0·10 to 0·73).

Conclusion
Perioperative psychological support reduces impairment in quality of life and quality of sleep after oesophagectomy. Registration number: NCT01738620 (http://www.clinicaltrials.gov).
Complete heart block following transcatheter closure of perimembranous VSD using amplatzer duct occluder II
Authors: Ghosh Sanjiban , Sridhar Anuradha , Sivaprakasam Muthukumaran 
Published: July 2017

AbstractLong term follow up studies have shown that transcatheter closure of perimembranous Ventricular Septal Defect (PmVSD) can be done safely and successfully. One of the most serious complications of VSD device closure is complete atrioventricular block which has been reported in 3–18% is various studies following VSD device closure. Amplatzar Duct Occluder II (ADO‐II) device is now commonly being used for closure of small to moderate sized PmVSD. Complete heart block has not been reported with ADO‐II device. We are reporting 2 cases of complete heart block following transcatheter closure of PmVSD using ADO‐II device where sinus rhythm was established following early surgical removal of the device.
Selective Adsorption and Separation of Organic Dyes with Spherical Polyelectrolyte Brushes and Compressed Carbon Dioxide
Authors: Zhang Rui , Yu Zhenchuan , Wang Lei , Shen Qizhe , Hou Xiaoyan , Guo Xuhong , Wang Junwei , Zhu Xuedong , Yao Yuan 
Published: July 2017

AbstractDye‐containing wastewater has caused serious environmental pollution. Herein, rationally designed spherical polyelectrolyte brushes (SPBs) with cationic charges, polystyrene–poly(2‐aminoethylmethacrylate hydrochloride) (PS‐PAEMH) as the absorbent, and compressed carbon dioxide as the antisolvent are proposed for the separation of the anionic dye eosin Y (EY) from a solution of mixed dyes. The adsorption behavior of EY onto PS‐PAEMH was highly dependent on CO2 pressure, contact time, and initial concentration. The maximum adsorption capacity of PS‐PAEMH was 335.20 mg g−1. FTIR and UV/Vis measurements proved that the electrostatic interactions between EY and PS‐PAEMH played an important role in the absorbance process. The adsorption process fitted the pseudo‐second‐order kinetic model and Freundlich isotherm model very well. The combined dye and polymer brush could be easily separated through ion exchange by adding an aqueous solution of NaCl. Recovered PS‐PAEMH retained a high adsorption capacity even after ten cycles of regeneration. This method provides a simple and effective way to separate ionic materials for environmental engineering.
Competition amplifies drought stress in forests across broad climatic and compositional gradients
Authors: Gleason Kelly E. , Bradford John B. , Bottero Alessandra , D'Amato Anthony W. , Fraver Shawn , Palik Brian J. , Battaglia Michael A. , Iverson Louis , Kenefic Laura , Kern Christel C. 
Published: July 2017

AbstractForests around the world are experiencing increasingly severe droughts and elevated competitive intensity due to increased tree density. However, the influence of interactions between drought and competition on forest growth remains poorly understood. Using a unique dataset of stand‐scale dendrochronology sampled from 6405 trees, we quantified how annual growth of entire tree populations responds to drought and competition in eight, long‐term (multi‐decadal), experiments with replicated levels of density (e.g., competitive intensity) arrayed across a broad climatic and compositional gradient. Forest growth (cumulative individual tree growth within a stand) declined during drought, especially during more severe drought in drier climates. Forest growth declines were exacerbated by high density at all sites but one, particularly during periods of more severe drought. Surprisingly, the influence of forest density was persistent overall, but these density impacts were greater in the humid sites than in more arid sites. Significant density impacts occurred during periods of more extreme drought, and during warmer temperatures in the semi‐arid sites but during periods of cooler temperatures in the humid sites. Because competition has a consistent influence over growth response to drought, maintaining forests at lower density may enhance resilience to drought in all climates.
Rationale and design of the AdaptResponse trial: a prospective randomized study of cardiac resynchronization therapy with preferential adaptive left ventricular‐only pacing
Authors: Filippatos Gerasimos , Birnie David , Gold Michael R. , Gerritse Bart , Hersi Ahmad , Jacobs Sandra , Kusano Kengo , Leclercq Christophe , Mullens Wilfried , Wilkoff Bruce L. ,   on behalf of the AdaptResponse Investigators
Published: July 2017

AbstractThe AdaptResponse trial is designed to test the hypothesis that preferential adaptive left ventricular‐only pacing with the AdaptivCRT® algorithm reduces the incidence of the combined endpoint of all‐cause mortality and intervention for heart failure (HF) decompensation, compared with conventional cardiac resynchronization therapy (CRT), among patients with a CRT indication, left bundle branch block (LBBB) and normal atrioventricular (AV) conduction. The AdaptResponse study is a prospective, randomized, controlled, single‐blinded, multicentre, clinical trial (ClinicalTrials.gov Identifier: NCT02205359), conducted at up to 200 centres worldwide. Following enrolment and baseline assessment, eligible subjects will be implanted with a CRT system containing the AdaptivCRT algorithm, and randomized in a 1:1 fashion to either a treatment (‘AdaptivCRT’) or control (‘Conventional CRT’) group. The study is designed to observe a primary endpoint in 1100 patients (‘event‐driven’) and approximately 3000 patients will be randomized. The primary endpoint is the composite of all‐cause mortality and intervention for HF decompensation; secondary endpoints include all‐cause mortality, intervention for HF decompensation, clinical composite score (CCS) at 6 months, atrial fibrillation, quality of life measured by the Kansas City Cardiomyopathy Questionnaire (KCCQ), health outcome measured by the EQ‐5D instrument, all‐cause readmission after a HF admission, and cost‐effectiveness. The AdaptResponse clinical trial is powered to assess clinical endpoints and is expected to provide definitive evidence on the incremental utility of AdaptivCRT‐enhanced CRT systems.
Macromolecular materials based on the application of the Diels–Alder reaction to natural polymers and plant oils
Authors: Gandini Alessandro , Carvalho Antonio J. F. , Trovatti Eliane , Kramer Ricardo K. , Lacerda Talita M. 
Published: July 2017

The furan‐maleimide thermally reversible Diels–Alder reaction applied to the elaboration of novel macromolecular materials from renewable resources (see image of polymerization and depolymerization) is reviewed on the basis of our investigations, which cover predominantly the field to this date. Different approaches are outlined, depending on the substrate and the results discussed in terms of the properties and potential applications of the ensuing linear, branched, and crosslinked polymers, with particular emphasis on their recyclability. These chemical modifications concern triglycerides and macromonomers derived from them, polysaccharides such as cellulose fibers and nanofibers, starch and chitosan, as well as natural rubber and gelatin.The furan‐maleimide thermally reversible Diels–Alder reaction applied to the elaboration of novel macromolecular materials from renewable resources (see image of polymerization and depolymerization) is reviewed on the basis of our investigations, which cover predominantly the field to this date. Different approaches are outlined, depending on the substrate and the results discussed in terms of the properties and potential applications of the ensuing linear, branched, and crosslinked polymers, with particular emphasis on their recyclability. These chemical modifications concern triglycerides and macromonomers derived from them, polysaccharides such as cellulose fibers and nanofibers, starch and chitosan, as well as natural rubber and gelatin.
Carbon Nanotubes Modified Graphite Electrodes for Monitoring of Biointeraction Between 6‐Thioguanine and DNA
Authors: Unal Didem Nur , Eksin Ece , Erdem Arzum 
Published: July 2017

AbstractIn this present study, single‐walled carbon nanotubes (SWCNT) modified disposable pencil graphite electrodes (SWCNT‐PGEs) were developed for the electrochemical monitoring of anticancer drug, and its interaction with double stranded DNA (dsDNA). Under this aim, SWCNT‐PGEs were applied for the first time in the literature to analyse of 6‐Thioguanine (6‐TG), and also to investigate its interaction with DNA by voltammetric and impedimetric methods. The surface morphologies of PGE and SWCNT‐PGE were explored using scanning electron microscopy (SEM) and electrochemical characterization of unmodified/modified electrodes was performed by cyclic voltammetry (CV). Experimental parameters; such as, the concentration of 6‐TG and its interaction time with dsDNA were optimized by using differential pulse voltammetry (DPV). Additionally, the interaction of 6‐TG with dsDNA was studied in case of different interaction times by electrochemical impedance spectroscopy (EIS) in contrast to voltammetric results. The detection limit of 6‐TG was found to be 0.25 μM by SWCNT‐PGE.