bluuebunny/crossref_metadata_2025 huggingface dataset:
Alkyne activation and polyhedral reorganization in benzothiazolate-capped osmium clusters on reaction with diethyl acetylenedicarboxylate (DEAD) and ethyl propiolate
Authors: Mahid Uddin Kh. , Chowdhury Md. Arshad H. , Kamal Hossain Md. , Ghosh Shishir , Tocher Derek A. , Richmond Michael G. , Kabir Shariff E.
Published: September 2017

The reaction of the internal alkyne DEAD with HOs3(CO)9[μ3-C7H4NS] (1a) yields the isomeric alkenyl complexes Os3(CO)9(μ-C7H4NS)(μ3-EtO2CCCHCO2Et).
The impact of nitrogen doping and reduced-niobium self-doping on the photocatalytic activity of ultra-thin Nb3O8− nanosheets
Authors: Zhou Yannan , Wen Ting , Kong Weiqian , Yang Baocheng , Wang Yonggang
Published: September 2017

Ultra-thin [Nb3O8]− nanosheets with N doping, reduced-Nb doping and N/reduced-Nb codoping were fabricated by combining chemically controlled syntheses and liquid exfoliation, which enable comparative studies on the doping effect for photocatalytic H2 evolution.
Synthesis, structure and catalysis of organometallic porphyrin–pincer hybrids: a review
Authors: Ananthnag Guddekoppa S. , Shetti Vijayendra S.
Published: September 2017

This review focuses on the comprehensive developments in the field of porphyrin–pincer hybrid organometallic chemistry.
A novel phosphorescent iridium(iii) complex bearing a donor–acceptor-type o-carboranylated ligand for endocellular hypoxia imaging
Authors: Li Xiang , Yin Yongheng , Gao Pengli , Li Weijie , Yan Hong , Lu Changsheng , Zhao Qiang
Published: September 2017

The first o-carborane functionalized red phosphorescent cationic iridium complex probe was developed for endocellular hypoxia imaging.
Recent advances in structural studies of heterometallic uranyl-containing coordination polymers and polynuclear closed species
Authors: Thuéry Pierre , Harrowfield Jack
Published: September 2017

A survey is given of recent original structural results on heterometallic species incorporating uranyl ions, particularly with carboxylate ligands.
A triboelectric generator based on self-poled Nylon-11 nanowires fabricated by gas-flow assisted template wetting
Authors: Choi Yeon Sik , Jing Qingshen , Datta Anuja , Boughey Chess , Kar-Narayan Sohini
Published: September 2017

Highly crystalline and “self-poled” δ′-phase Nylon-11 nanowires, fabricated using a novel gas-flow assisted nano-template infiltration method, exhibit enhanced triboelectric energy harvesting performance.
Balancing electron transfer rate and driving force for efficient photocatalytic hydrogen production in CdSe/CdS nanorod–[NiFe] hydrogenase assemblies
Authors: Chica Bryant , Wu Chang-Hao , Liu Yuhgene , Adams Michael W. W. , Lian Tianquan , Dyer R. Brian
Published: September 2017

We describe a hybrid photocatalytic system for hydrogen production consisting of nanocrystalline CdSe/CdS dot-in-rod (DIR) structures coupled to [NiFe] soluble hydrogenase I (SHI) fromPyrococcus furiosus.
Engineering interface structures between lead halide perovskite and copper phthalocyanine for efficient and stable perovskite solar cells
Authors: Kim Y. C. , Yang T.-Y. , Jeon N. J. , Im J. , Jang S. , Shin T. J. , Shin H.-W. , Kim S. , Lee E. , Kim S. , Noh J. H. , Seok S. I. , Seo J.
Published: September 2017

CuPC-applied perovskite solar cells show excellent long-term thermal stability which is attributed to the reliable interface and intrinsic heat-resistance of CuPC.
Near real-time N-nitrosodimethylamine monitoring in potable water reuse via online high-performance liquid chromatography-photochemical reaction-chemiluminescence
Authors: Fujioka Takahiro , Tanisue Taketo , Roback Shannon L. , Plumlee Megan H. , Ishida Kenneth P. , Kodamatani Hitoshi
Published: September 2017

Near real-time monitoring of the concentration of N-nitrosodimethylamine (NDMA) in recycled wastewater was achieved by adapting a newly developed analytical technique—online high-performance liquid chromatography-photochemical reaction-chemiluminescence.
The effect of anthocyanins from red wine and blackberry on the integrity of a keratinocyte model using ECIS
Authors: Évora Ana , de Freitas Victor , Mateus Nuno , Fernandes Iva
Published: September 2017

Anthocyanins enhanced the healing rate of keratinocyte cells.
An agent for optical imaging of TrkC-expressing, breast cancer
Authors: Kamkaew Anyanee , Li Feng , Li Zheng , Burgess Kevin
Published: September 2017

Tropomyosin receptor kinases receptor C is expressed at high levels on the surface of tumors from metastatic breast cancer, metastatic melanoma, glioblastoma, and neuroblastoma.
Synergism of fused bicyclic 2-aminothiazolyl compounds with polymyxin B against Klebsiella pneumoniae
Authors: Wang Rong , Hou Shuang , Dong Xiaojing , Chen Daijie , Shao Lei , Qian Liujia , Li Zhong , Xu Xiaoyong
Published: September 2017

A series of fused bicyclic 2-aminothiazolyl compounds were synthesized and evaluated for their synergistic effects with polymyxin B (PB) against Klebsiella pneumoniae (SIPI-KPN-1712).
Combining ZnS with WS2 nanosheets to fabricate a broad-spectrum composite photocatalyst for hydrogen evolution
Authors: Zhong Yueyao , Shao Yongliang , Huang Baibiao , Hao Xiaopeng , Wu Yongzhong
Published: September 2017

Compared with pure ZnS photocatalyst, the ZnS/WS2 nanocomposite shows obviously enhanced hydrogen evolution activity and photostability.
Aryl appended neutral and cationic half-sandwich ruthenium(ii)–NHC complexes: synthesis, characterisation and catalytic applications
Authors: Viji Mambattakkara , Tyagi Nidhi , Naithani Neeraj , Ramaiah Danaboyina
Published: September 2017

Aryl appended half-sandwich Ru(ii)–NHC complexes were synthesised and their use as selective catalysts for transfer hydrogenation of aromatic ketones was demonstrated.
A label-free and enzyme-free signal amplification strategy for a sensitive RNase H activity assay
Authors: Lee Chang Yeol , Jang Hyowon , Park Ki Soo , Park Hyun Gyu
Published: September 2017

A target-triggered catalytic hairpin assembly with a G-quadruplex specific fluorescent binder, NMM, is employed to develop a novel and sensitive RNase H activity assay.
The use of RGD-engineered exosomes for enhanced targeting ability and synergistic therapy toward angiogenesis
Authors: Wang Jie , Li Wei , Lu Zhichao , Zhang Leicheng , Hu Yu , Li Qiubai , Du Wei , Feng Xiaojun , Jia Haibo , Liu Bi-Feng
Published: September 2017

We pioneered biomimetic particles with topographic structures for exosome isolation and functionalized exosomes for active targeting angiogenesis therapy and imaging.
Nanocrystals generated under tensile stress in metallic glasses with phase selectivity
Authors: Feng Yancong , Liao Wei-Bing , Zheng Jiaxin , Wang Lin-Wang , Zhang Yong , Sun Jianfei , Pan Feng
Published: September 2017

Nanocrystals with a B2 structure are generated from CuZr glassy fiber and the mechanism of phase selectivity is revealed.
Preparation of Bi2S3/carbon quantum dot hybrid materials with enhanced photocatalytic properties under ultraviolet-, visible- and near infrared-irradiation
Authors: Wang Jingmin , Zhang Xiang , Wu Ji , Chen Hao , Sun Song , Bao Jun , Li Shikuo , Bi Hong
Published: September 2017

Bi2S3/C-dot hybrid materials show an excellent UV-, vis- and NIR-photocatalytic behaviour for the degradation of MB or TC.
Mechanochemically prepared SrFCl nanophosphor co-doped with Yb3+ and Er3+ for detecting ionizing radiation by upconversion luminescence
Authors: Zhang Jun , Riesen Nicolas , Riesen Hans
Published: September 2017

A novel method to monitor X-ray dose by employing upconversion luminescence in nanocrystalline SrFCl:Yb3+/Er3+ is reported.
Continuous fabrication of a MnS/Co nanofibrous air electrode for wide integration of rechargeable zinc–air batteries
Authors: Wang Yang , Fu Jing , Zhang Yining , Li Matthew , Hassan Fathy Mohamed , Li Guang , Chen Zhongwei
Published: September 2017

Exploring highly efficient bifunctional electrocatalysts toward the oxygen reduction and evolution reactions is essential for the realization of high-performance rechargeable zinc–air batteries.
Iodine induced 1-D lamellar self assembly in organic ionic crystals for solid state dye sensitized solar cells
Authors: Vaghasiya Jayraj V. , Sonigara Keval K. , Beuvier Thomas , Gibaud Alain , Soni Saurabh S.
Published: September 2017

A novel saturated heterocyclic organic ionic crystal, piperidinium iodide (PiHI), is synthesized by a facile route and applied as a solid electrolyte in Dye Sensitized Solar Cells (ss-DSSCs).
Synthesis and thermal stabilities of oligonucleotides containing 2′-O,4′-C-methylene bridged nucleic acid with a phenoxazine base
Authors: Kishimoto Yuki , Fujii Akane , Nakagawa Osamu , Nagata Tetsuya , Yokota Takanori , Hari Yoshiyuki , Obika Satoshi
Published: September 2017

BNAP-modified ODNs showed higher binding affinities toward complementary DNA and RNA as compared to ODNs bearing 2′,4′-BNA/LNA with 5-methylcytosine or 2′-deoxyribonucleoside with phenoxazine.
Thermoresponsive cyclodextrins with benzenesulfonamide showing tunable inhibition for carbonic anhydrase
Authors: Qian Apan , Shi Huang , Zhu Runlang , Yan Jiatao , Li Wen , Liu Kun , Zhang Afang
Published: September 2017

A thermally induced collapse provides a switchable microenvironment to reversibly regulate enzyme activity through introducing benzenesulfonamide ligands into thermoresponsive oligoethylene glycol-modified cyclodextrins.
Chromium complexes for luminescence, solar cells, photoredox catalysis, upconversion, and phototriggered NO release
Authors: Büldt Laura A. , Wenger Oliver S.
Published: September 2017

Cr(iii) and Cr(0) complexes are earth-abundant alternatives to photosensitizers that are commonly made from precious metals.
A mitochondrial-targeted prodrug for NIR imaging guided and synergetic NIR photodynamic-chemo cancer therapy
Authors: Liu Hong-Wen , Hu Xiao-Xiao , Li Ke , Liu Yongchao , Rong Qiming , Zhu Longmin , Yuan Lin , Qu Feng-Li , Zhang Xiao-Bing , Tan Weihong
Published: September 2017

Nontoxic prodrugs, especially activated by tumor microenvironment, are urgently required for reducing the side effects of cancer therapy.
On the network economic, technical and reliability characteristics improvement through demand‐response implementation considering consumers’ behaviour
Authors: Dadkhah Akbar , Vahidi Behrooz
Published: September 2017

Demand response (DR) is one of the fundamental components of deregulated power systems which face uncertainty because of unpredictable network component contingencies. In this study, a security‐constrained model is proposed to coordinate supply and demand sides in a proper way toward a flexible, secure and economic grid. In the proposed model, generation units are committed to enhance the flexibility by providing up‐ and down‐spinning reserves while an optimal real‐time pricing scheme provides demand‐side flexibility. Real‐time pricing is developed by utilising consumers' behaviour. Different levels of rationality are given by extending demand‐price elasticity matrices for different types of consumers. The proposed method can assist independent system operators to schedule generating units a day‐ahead in a more reliable manner. Customers also can make the most beneficial plans by joining DR programmes and schedule their consumption optimally according to defined rates in the case of an emergency. The applicability of the proposed model is tested on the IEEE 24‐bus reliability test system and its effects on operation cost, technical data of the network and the expected load not served are discussed.
Experimental study on the contamination deposition characteristics of insulators in a fog–haze environment
Authors: Zhang Chuyan , Hu Junyi , Li Jianchao , Liu Dong , Wang Liming , Lu Ming
Published: September 2017

In recent years, the frequent occurrence of fog and haze in China has attracted increasing attention in the field of electrical insulation. Fog–haze weather is an extreme weather condition with high humidity, high concentrations of suspended particulate matter, and sometimes high conductivity. This exacerbates insulator surface contamination and moistens the contamination layer, which may lead to flashover incidents. Here, an experimental system was established to simulate the fog–haze environment under controlled and tunable conditions. Simulated contamination tests were then conducted using three typical insulators. The influence of insulator type and environmental parameters was investigated. Test results showed that higher humidity led to faster pollution accumulation for all three insulators. Moreover, equivalent salt deposit density (ESDD) on the surface increased linearly with increasing fog conductivity, and that on the upper surface rose faster. The ESDD increased significantly under AC voltage, especially on the lower surface. Finally, insulator contamination was studied in a real‐world fog–haze environment with periodic measurement of the ESDD and environmental parameters. The ESDD showed a good correlation with the PM2.5 and PM10 concentrations. This work should have relevance for the external insulation of the power grid to resist the effects of fog and haze.
Optimising the thermal environment and the ampacity of underground power cables using the gravitational search algorithm
Authors: Perović Bojan D. , Tasić Dragan S. , Klimenta Dardan O. , Radosavljević Jordan N. , Jevtić Miroljub D. , Milovanović Miloš. J.
Published: September 2017

This study takes into consideration a problem that commonly occurs at the design stage of underground cable lines and that relates to the manner of determining the optimal values for dimensions of cable trench and bedding, interaxial spacings between power cables in flat formation and cable ampacities. The problem is formulated as a non‐linear optimisation problem with constraints. The gravitational search algorithm, simulated annealing algorithm and generalised pattern search algorithm are used to solve the problem. The optimal solutions are obtained based on the following three optimisation criteria: (i) minimisation of the total installation costs, i.e. the total costs for producing the cable trench, laying the bedding material, laying the backfill material and installing the cables, (ii) maximisation of the cable ampacity and (iii) a simultaneous application of the minimisation of the total installation costs and the maximisation of the cable ampacity. The constraints on design and control variables are introduced through penalty factors by means of which the objective function is expanded. The procedure is conducted taking into account the effect of drying out of the soil surrounding the cables.
Solving OPF using linear approximations: fundamental analysis and numerical demonstration
Authors: Yang Zhifang , Zhong Haiwang , Xia Qing , Kang Chongqing
Published: September 2017

Due to the unique advantages in computational robustness and convergence, the linear approximation approach is and will remain to be an important method to solve the optimal power flow (OPF) problem, especially for industrial applications. The DC power flow method, which is currently used in the majority of power industries, is the representative. Many studies extend the DC power flow method by including voltage magnitude, reactive power, and losses. This study provides a detailed analysis and breakdown investigation of existing linear approximations of the OPF problem. The formulation and accuracy of existing linear approximations are compared. Taking advantage of the decoupled formulation of linear approximations, the property of power flow equations is illustrated from a new perspective. Why reactive power flow equations are hard to linearise is explained theoretically. The numerical performance of existing linear approximations is demonstrated in IEEE and Polish test systems. Evidence from the theoretical analysis and numerical studies shows that the accuracy of linear approximations could be substantially improved using a mathematical transformation of the non‐linear voltage magnitude term. This finding provides a new research direction for solving the OPF problem using linear approximations.
Semi‐myopic algorithm for resource allocation in wireless body area networks
Authors: Karimzadeh‐Farshbafan Mohammad , Ashtiani Farid
Published: September 2017

The key features of wireless body area networks are limited energy resources of the sensor nodes and the need for highly reliable packet transmission. Therefore, designing a suitable algorithm that schedules transmission of the nodes is very important. Although an optimal algorithm has been previously reported based on a partially observable Markov decision process (POMDP), its complexity is high. In this study, the authors propose a suboptimal algorithm for scheduling the transmissions, i.e. a semi‐myopic algorithm, with a performance close to the optimal, albeit with much lower complexity. To this end, they modify the structure of the cost function of the optimal algorithm such that the scheduling decision at each superframe is made regarding its effect on only a few upcoming superframes. The authors' proposed algorithm is considered in two different incoming packet scenarios, deterministic and random arrivals. Simulation results show that for both types of arrivals, there is a negligible difference between their proposed algorithm and the optimal one, i.e. POMDP, in terms of energy consumption and reliability.
Chromium-Catalyzed, Regioselective Cross-Coupling of C–O Bonds by Using Organic Bromides as Reactants
Authors: Luo Meiming , Zeng Xiaoming , Tang Jinghua
Published: September 2017

We report a chromium-catalyzed cross-coupling of C–O bonds with widely accessible organic bromides as reactants for the preparation of ortho-arylated or -alkylated aromatic aldehydes at room temperature. The use of metallic magnesium is essential for the reaction to occur, giving it an advantage over previous reactions involving Grignard reagents that have to be prepared separately from organic halides before the coupling.
Rapid Transformation of Alkyl Halides into Symmetrical Disulfides Using Sodium Sulfide and Carbon Disulfide
Authors: Bhaumik Ishani , Misra Anup
Published: September 2017

An efficient one-pot reaction has been developed for the preparation of symmetrical disulfide derivatives directly from alkyl halides by reaction with a combination of sodium sulfide and carbon disulfide without requirement for any catalyst.
Multidetector Computed Tomography (CT) Analysis of 168 Cases in Diabetic Patients with Total Superficial Femoral Artery Occlusion: Is It Safe to Use an Anterolateral Thigh Flap without CT Angiography in Diabetic Patients?
Authors: Kim Youngchul , Suh Youngchul , Hong JoonPio , Suh Hyunsuk
Published: September 2017

Background The superficial femoral artery (SFA) is the most common site of lower extremity atherosclerosis, and collateral vessels from the deep femoral artery (DFA) play an important compensatory role between the iliofemoral segment and the popliteal artery. We examined SFA occlusion and collateral vessel developments in patients with diabetes mellitus using computed tomography (CT) angiography. We also compared the collateral systems from the DFA and the descending branch of the lateral circumflex femoral artery (dbLCFA) in the case of SFA occlusion.

Methods We retrospectively reviewed 1,316 sets of CT angiographic data collected from 673 patients with diabetes between 2008 and 2010. The degree of stenosis in each segment of the proximal and distal SFA and the number and size of collateral vessels originating from the DFA and dbLCFA were measured using established scoring systems. In cases where the SFA was occluded, the numbers of collateral vessels originating from the DFA and the dbLCFA vessel were compared.

Results The mean occlusion rate of the SFA was 15.6%. We noted that collateral vessels from DFA and dbLCFA were the main circulatory route in cases of occlusions of the SFA. More collateral vessels developed from the DFA than from the dbLCFA. Overall, 0.6% of the patients had only collateral systems from the dbLCFA.

Conclusion When planning to use anterolateral thigh free flaps in diabetic patients with suspected SFA total occlusion, thorough investigations of the peripheral vessels are essential.
Prevention of RhD Alloimmunization: A Comparison of Four National Guidelines
Authors: Sperling Jeffrey , Dahlke Joshua , Sutton Desmond , Gonzalez Juan , Chauhan Suneet
Published: September 2017

Objective The objective of this study was to compare national guidelines on the prevention of RhD alloimmunization.

Study Design We performed a review of four national guidelines on prevention of alloimmunization from the American Congress of Obstetricians and Gynecologists, Royal College of Obstetricians and Gynaecologists, Society of Obstetricians and Gynaecologists of Canada, and The Royal Australian and New Zealand College of Obstetricians and Gynaecologists. We compared the indications/contraindications, timing, dosing, formulation and route of anti-D immune globulin, and management of unique circumstances. The references were compared with regard to the number of randomized control trials, Cochrane Reviews, and systematic reviews/meta-analyses cited.

Results Variation exists in recommendations on the timing and need for consent prior to routine antenatal anti-D immune globulin administration, prophylaxis for unique circumstances (e.g., threatened abortion < 12 weeks, complete molar pregnancy), and the use of cell-free fetal DNA testing for fetal RhD genotype.

Conclusion These variations in recommendations reflect the heterogeneity of the literature on the prevention of alloimmunization and highlight the need for synthesis of evidence to create an international guideline on prevention of alloimmunization. This may improve safety, quality, optimize outcomes, and stimulate future trials.
Técnica para el tratamiento de la malunión intra-articular del radio mediante osteotomías con control artroscópico
Authors: Del Piñal F. , García-Bernal F. J. , Delgado J. , Regalado J. , Pisani D. , Sanmartín M.
Published: September 2017

El propósito de este trabajo es presentar un método para realizar las osteotomías intraarticulares con control visual.

Método: Utilizamos los abordajes dorsales clásicos de artroscopia (3-4, 6-R) además de un portal volar radial (VR). Para visualizar la articulación radiocarpiana recurrimos sólo a la tracción sin irrigar con agua. Las osteotomías se efectuaron con osteotomos de 4 mm introducidos por los portales y bajo control visual por la óptica del artroscopio. Una vez finalizada la refractura se movilizaron y fijaron los fragmentos desplazadas mediante tornillos o placas, obteniendo en todos los casos escalones próximos a 0mm.

Conclusiones: Este procedimiento permite realizar la partición de los fragmentos por los trazos originales de fractura. La clave de esta intervención es realizar la artroscopia sin agua (técnica seca) que permite una visión nítida y la ejecución de las osteotomías sin extravasación de agua, ni pérdidas de visión.
Lipoma como etiología del síndrome interóseo posterior. Presentación de un caso clínico
Authors: Cortabarría N. , Graciano R. , Londinsky M. , Camarot T. , Franco V. , Larrosa L.
Published: September 2017

Los tumores benignos de tejido adiposo o lipomas son los tumores de partes blandas más frecuentes en la edad adulta. Su localización más habitual es el tejido subcutáneo pudiendo localizarse intermusculares, intramusculares o aquellos que crecen en contacto con el hueso o parosteales. Este último se presenta con una frecuencia de 0,3% de todos los lipomas. El síndrome compresivo del nervio interóseo posterior no traumático ocurre con mayor frecuencia por un atrapamiento a nivel de la arcada de Frohse pero se describen como etiologías posibles las tumoraciones, entre ellas los lipomas como los más frecuentes. El lipoma parosteal que se localiza en el sector proximal del radio es posible causa de parálisis del nervio interóseo posterior por sus relaciones específicas anatómicas en el área. Richmond en 1953 fue el primero en publicar un caso de lipoma de estas características como causa de síndrome interóseo posterior, desde entonces publicaciones esporádicas agregan casos en la literatura internacional consultada e introducen las peculiaridades de la patología. Describiremos un caso clínico de la Cátedra de Cirugía Plástica y Quemados del Hospital de Clínicas y discutiremos las características de la enfermedad, los estudios paraclínicos y los resultados obtenidos de acuerdo al análisis bibliográfico.
Tumor de Evans de la mano. Una localización excepcional
Authors: Gómez P. , Gutiérrez J. F. , Requena J. A. , Macia J. A.
Published: September 2017

Introducción. El sarcoma fibromixoide de bajo grado es un sarcoma de partes blandas caracterizado por un curso clínico y una histología aparentemente benigna, pero que puede dar recidivas locales y metástasis a distancia. La cirugía constituye el tratamiento de elección.

Caso clínico. Varón de 30 años que presenta tumoración indolora en eminencia tenar mano izquierda de 12 meses de evolución. En la primera exploración se aprecia un nódulo duro y fijo en región tenar izquierda, que en la resonancia magnética con contraste se localizaba a la altura de la base del primer metacarpiano con captación heterogénea de contraste. La punción aspirativa con aguja fina es compatible con tumor mesenquimal, por lo que se opta por un tratamiento quirúrgico de conformidad con el paciente. El estudio anatomopatológico definitivo establece el diagnóstico de sarcoma fibromixoide de bajo grado sin infiltración tumoral de los bordes quirúrgicos y estudio de extensión negativo. Al año de control clínico, no existen indicios de recidiva tumoral, ni local ni a distancia. La presentación superficial, en extremidades superiores o en edad pediátrica es excepcional.
Indicación y resultados del tratamiento quirúrgico y rehabilitador en la ráfaga cubital reumática muy avanzada
Authors: Villén G. , Gastesi I. , García y García E. , Ruiz F. J. , Rodríguez A.
Published: September 2017

La ráfaga cubital de la mano es una deformidad que afecta a más del 36% de los pacientes con artritis reumatoide. Los motivos para la indicación quirúrgica son controvertidos. Se han descrito numerosos procedimientos para la reconstrucción de partes blandas y para la artroplastia de las metacarpofalángicas. Siguiendo el orden de preferencia establecido en la artritis reumatoide de restaurar la función, aliviar el dolor y corregir la deformidad, fueron intervenidas quince manos con una ráfaga cubital avanzada mediante centrado tendinoso y artroplastia protésica o artrodesis de las metacarpofalángicas. Después de la cirugía se aplicó un protocolo intensivo y específico de rehabilitación. La petición de los pacientes en relación a la cirugía fue la recuperación funcional y la mejora cosmética; el dolor no constituyó una preferencia, y cuando estuvo presente fue sustancialmente aliviado o desapareció.
Osteoblastoma del hueso ganchoso. A propósito de un caso
Authors: Ledesma J. , Sánchez-Heredero J. , Manaute J. M. , Cárceles J. , Grande J. , Del Cerro Gutiérrez M.
Published: September 2017

Se presenta el caso de un osteoblastoma recidivante del hueso ganchoso y se revisa el tratamiento de esta lesión. Paciente varón joven con dolor y tumefacción en el dorso de la mano de seis meses de evolución sin respuesta al tratamiento sintomático. A la exploración radiológica se apreció una tumoración lítica del hueso ganchoso, y la RM mostró una tumoración con edema. Por biopsia incisional se diagnóstico que se trataba de un osteoblastoma, por lo que fue intervenido para practicar curetaje intralesional con aporte de esponjosa de cresta ilíaca autóloga. A los seis meses se observó una recidiva local, por lo que fue reintervenido mediante resección en bloque, con resultado final satisfactorio.
Relación de la inestabilidad, la laxitud ligamentosa y la traslación del metacarpiano sobre el trapecio en la aparición de artrosis trapecio metacarpiana: estudio anatómico
Authors: Lamas C. , Morro M. R. , Llusà M. , Mustafa A. , Proubasta I.
Published: September 2017

Los cambios degenerativos de la articulación trapecio metacarpiana (TMC) se han asociado con la laxitud ligamentosa y con la subluxación articular. El ligamento dorso-radial (LDR) y el ligamento oblicuo anterior (LOA) juegan un papel fundamental en la estabilidad articular al realizar la pinza y cuando estos ligamentos se rompen, la articulación pierde estabilidad.

Objetivo: El estudio describe los ligamentos principales de la articulación TMC y valora el papel que juegan en la estabilidad articular, en la prevención de la subluxación del primer metacarpiano sobre el trapecio y la relación de estos ligamentos en la fisiopatología de la artrosis.

Material y Método: Se realizó un estudio en 10 manos de cadáver fresco. Fueron 5 mujeres y 5 hombres de edad media 65 años (51-92). Se disecaron los ligamentos principales de la articulación TMC y se valoró el papel que juegan en la estabilidad. Se seccionaron aisladamente el LDR, el LOA o beak ligament, el ligamento intermetacarpiano (LIM), el ligamento oblicuo dorsal (LOD), y el ligamento colateral ulnar (LCU) observando el grado de inestabilidad que producían en la articulación TMC. La estabilidad se evaluó con el primer MTC en neutro, abducción radial, abducción palmar y oposición. El grado de desplazamiento del metacarpiano respecto del trapecio se midió en mm. El grado de artrosis de describió dividiendo las superficies en cuadrantes.

Resultados: El LDR, el LOA, y el LIM juegan un papel como elementos estabilizadores de la articulación TMC. La sección del LDR dio lugar a la mayor inestabilidad con una mayor subluxación TMC. La laxitud de algunos de estos ligamentos coincide con un mayor área de destrucción articular y de cambios degenerativos. La media de desplazamiento o traslación tras la sección del LDR fue de 1.3 mm, del LOA de 1.0 mm, del LOD 0.5 mm, del LIM 0.4 mm y del LCU de 0.2 mm.

La degradación del cartílago se inicia en el cuadrante radial y progresa hacia los cuadrantes palmares de la superficie articular.

Conclusión: Las observaciones sugieren que la traslación del metacarpiano sobre el trapecio tiene lugar en mayor grado con la sección del LDR y esta subluxación coincide con las áreas de destrucción articular y degradación del cartílago. Nuestros resultados sostienen la hipótesis de que la inestabilidad puede ser una causa de la artrosis TMC. Este estudio sugiere que se debería de valorar la reparación del LDR.
Validität klinischer Tests zur Bestimmung des Antetorsionswinkels des Femurs
Authors: Brugner-Seewald M.
Published: September 2017

Die Diagnosestellung des femoroazetabulären Impingements (FAI) beruht auf morphologischen Veränderungen des Hüftkopfes und/oder der
Hüftpfanne, die in bildgebenden Verfahren festgestellt werden. Eine dieser Veränderungen ist eine abnormale Antetorsion des Femurs. Diese
wird in der Literatur zudem als beitragender Faktor zur Entstehung des FAI und der Osteoarthrose, sondern auch von Low Back Pain und
Knieschmerzen diskutiert.

Eine der großen Herausforderungen für Physiotherapeuten liegt darin, möglichst alle beitragenden Faktoren zu identifizieren, die die
Entstehung eines FAI oder einer Osteoarthrose begünstigen oder beschleunigen könnten und die Behandlung entsprechend anzupassen.

Die vorliegende Arbeit versuchte einerseits herauszufinden, welche klinischen Tests zur Ermittlung der Antetorsion des Femurs in der
Literatur beschrieben sind und andererseits die klinische Präsentation einer veränderten Antetorsion des Femurs darzustellen.

Der Craig’s Test (Trochanteric Prominence Angle Test, Ruwe’s Test) und die Hüftinnenrotation weisen auf eine klinisch relevante Validität und
Reliabilität hin. Es wird empfohlen, mehrere Tests zu kombinieren.
Rehabilitationsverlauf von Patienten nach schwerem Schädel-Hirn-Trauma
Authors: Pohl Marcus ,   Arbeitsgemeinschaft Neurologisch-Neurochirurgische Frührehabilitation
Published: September 2017

Das Schädel-Hirn-Trauma (SHT) tritt in Deutschland vergleichsweise so häufig wie ein Schlaganfall auf. Allerdings bedürfen nur knapp 4 % der
Patienten nach SHT einer stationären Rehabilitation. Besonders Patienten mit schwerem SHT werden in der neurologisch-neurochirurgischen
Frührehabilitation (NNFR) stationär rehabilitiert.

Die vorliegende Studie verdeutlicht die guten Erfolge und die Bedeutung der NNFR im Gesamtbehandlungskonzept von Patienten mit schwerem
SHT.
Enhanced p-type behavior in the hybrid structure of graphene quantum dots/2D-WSe2
Authors: Liu Ping , Zhu Xingqun , Feng Chao , Huang Meng , Li Jing , Lu Yalin , Xiang Bin
Published: September 2017

Transition metal dichalcogenides (TMDs) have emerged as promising candidates for realizing p–n junction device applications. However, the realization of the modulation in the electronic properties of p-type TMDs still remains challenging. Here, we report an enhanced p-type electrical transport behavior in a hybrid structure of graphene quantum dot (GQD)/two dimensional (2D) WSe2. The incorporation of GQDs onto the surface of thin layer WSe2 triggers significantly the charge transfer from WSe2 to GQDs due to the band alignment at the interface. As a result, the increase in the spectral weight of positive charged trions occurs, leading to a red shift in the photoluminescence in the hybrid structure of GQD/WSe2. Because of the charge transfer, it results in 50-time improvement in the hole carrier mobility with a decreased threshold voltage in the hybrid structure compared to pristine WSe2. Our results pave the way for enhancing the performance of other 2D material-based electronic devices.
Electronic structure of boron based single and multi-layer two dimensional materials
Authors: Miyazato Itsuki , Takahashi Keisuke
Published: September 2017

Two dimensional nanosheets based on boron and Group VA elements are designed and characterized using first principles calculations. B-N, B-P, B-As, B-Sb, and B-Bi are found to possess honeycomb structures where formation energies indicate exothermic reactions. Contrary to B-N, the cases of B-P, B-As, B-Sb, and B-Bi nanosheets are calculated to possess narrow band gaps. In addition, calculations reveal that the electronegativity difference between B and Group VA elements in the designed materials is a good indicator to predict the charge transfer and band gap of the two dimensional materials. Hydrogen adsorption over defect-free B-Sb and B-Bi results in exothermic reactions, while defect-free B-N, B-P, and B-As result in endothermic reactions. The layerability of the designed two dimensional materials is also investigated where the electronic structure of two-layered two dimensional materials is strongly coupled with how the two dimensional materials are layered. Thus, one can consider that the properties of two dimensional materials can be controlled by the composition of two dimensional materials and the structure of layers.
Electron beam domain writing in reduced LiNbO3 crystals
Authors: Kokhanchik L. S. , Bodnarchuk Ya. V. , Volk T. R.
Published: September 2017

Electron-beam domain writing (DEBW) on the nonpolar surfaces of reduced LiNbO3 crystals was studied. Essential distinctions were found as compared with DEBW in as-grown congruent LiNbO3 crystals (CLN). The threshold dose Dthr of domain emerging in reduced LiNbO3 (RLN) exceeds essentially Dthr in CLN, which is related to a decreased space-charge Qsc in the irradiated area due to the increase of the bulk leakage current ILbulk. The shape of domain gratings in RLN differs from that in CLN because of an increased dark conductivity. The velocity of domain-wall frontal motion in RLN is more than by a factor of 20 lower than in CLN, which is due both to a decreased Qsc and to an essential reduction of the domain-wall mobility. All these effects related to a fundamental change of the charge transport in RLN are discussed in the framework of the current model of the LiNbO3 defect structure. The results obtained show that the only path to realize DEBW in crystals with varied conductance is the adjustment of EB current density.
Dual constant-flux energy cascades to both large scales and small scales
Authors: Pouquet A. , Marino R. , Mininni P. D. , Rosenberg D.
Published: September 2017

In this paper, we present an overview of concepts and data concerning inverse cascades of excitation towards scales larger than the forcing scale in a variety of contexts, from two-dimensional fluids and wave turbulence to geophysical flows in the presence of rotation and stratification. We briefly discuss the role of anisotropy in the occurrence and properties of such cascades. We then show that the cascade of some invariant, for example, the total energy, may be transferred through nonlinear interactions to both the small scales and the large scales, with in each case a constant flux. This is in contrast to the classical picture, and we illustrate such a dual cascade in the context of atmospheric and oceanic observations, direct numerical simulations, and modeling. We also show that this dual cascade of total energy can in fact be decomposed in some cases into separate cascades of the kinetic and potential energies, provided the Froude and Rossby numbers are small enough. In all cases, the potential energy flux remains small, of the order of 10% or less relative to the kinetic energy flux. Finally, we demonstrate that, in the small-scale inertial range, approximate equipartition between potential and kinetic modes is obtained, leading to an energy ratio close to one, with strong departure at large scales due to the dominant kinetic energy inverse cascade and piling-up at the lowest spatial frequency and at small scales due to unbalanced dissipation processes, even though the Prandtl number is equal to one.
Electrically insulating properties of the 5d double perovskite Sr2YOsO6
Authors: Li Jinghua , Wang Xia , Wang Hongyuan , Matsushita Yoshitaka , Alexei Belik A. , Kolodiazhnyi Taras , Xu Gang , Shi Youguo , Guo Yanfeng , Yamaura Kazunari , Chen Ying
Published: September 2017

A high-pressure-synthesized double perovskite Sr2YOsO6 was investigated by synchrotron X-ray diffraction and measurements of its magnetic susceptibility, specific heat capacity, complex impedance, and complex dielectric constant. It crystallized into a monoclinic double perovskite structure (P21/n) with complete ordering of the Y and Os atoms. Its magnetic behaviors, including the antiferromagnetic transition temperature (∼52 K), Curie-Weiss effective moment [3.48(5) μB/Os], and Weiss temperature [−350.1(7) K], were close to the respective values of Sr2YOsO6 previously synthesized without an applied pressure of 6 GPa. Transport property measurements revealed that the lower limit of the activation energy was 192(1) meV and the charge gap remained open regardless of the presence of magnetic order, conflicting with the electron delocalization predicted by theoretical calculations. Further consideration, including theoretical and experimental investigations of the roles of spin–orbit coupling and U of the 5d electrons of Os 5d-t2g3, may assist in understanding the general magnetic and insulating behaviors of quasi-half-filled 5d-t2g3oxides in the perovskite category toward the use of 5d double perovskite for magnetic applications.
Socio-economic developments in the Arab countries: selected indicators
Authors: El-Khoury Gabi
Published: September 2017

This statistical file is concerned with the latest available socioeconomic data recognized by the United Nations and the World Bank as basic indicators to assess the process of development in the Arab countries and worldwide. Table 1 provides data on population and shows the ranking and values of Arab countries in the human development index (HDI) as well as in the inequality-adjusted human development index (IHDI). Tables 2–5 respectively follow up latest estimates on labour force, unemployment, poverty, education and illiteracy rates in Arab countries, while Table 6 concentrates on real gross domestic product (GDP) growth rates and consumer price inflation statements. Table 7 gives figures on gross national income (GNI) per capita and the Gini index for income distribution, while Tables 8 and 9 respectively present indicators on health and social integration.
Democracy in Arab universities
Authors: Saidani Mounir
Published: September 2017

The procedural concept of university democracy as relying on an existing customary or written law that guarantees a real, forthright, integral system of power and counter-power that can ensure the widest participation for all stakeholders in the management of university affairs, and in the management of the symbiotic relationship between the university and its social environment, was adopted for this study. In an attempt to measure the presence of democracy in the discourses, practices, courses and education curricula of 36 Arab universities in 18 Arab countries, the study was based on the findings of a survey collected on the discourses of the universities in question. Analytical material that detailed and documented examples of each of the ‘connotations on democracy’ was scrutinized. Conclusions show the ‘weakness’ to ‘no presence’ of democracy in some Arab universities’ curricula, programmes and courses. This may not be the result of a premeditated planning strategy, but rather one that is undoubtedly absent on coordination between the discourse of university leaders and the spread of the democracy in its meaning, behaviour and ethics within college life activities and course contents. In addition, there are forces that hinder democratic practice within the very university institutions that host democratic practice incentives. Analysis of both internal and external environments indicates an emphasis on the negative and stringent resistance to evolution by a large proportion of teachers, along with resistance to change in leaders.
Mapping the relationship between religion and social policy
Authors: Pavolini Emmanuele , Béland Daniel , Jawad Rana
Published: September 2017

Religion is a major aspect of human life that directly intersects with a number of social policy issues. Although much has been written about the religion-social policy nexus, the literature remains overly fragmented. Focusing primarily on Western Europe and North America, this review essay seeks to create a fruitful dialogue among the three main streams of research in the area, which respectively that focus on political parties, faith-based organisations, and individual behaviour. This essay has the goal of formulating a new, integrated agenda for future research on the religion and social policy nexus that also extends beyond Western societies.
BLM helicase regulates DNA repair by counteracting RAD51 loading at DNA double-strand break sites
Authors: Patel Dharm S. , Misenko Sarah M. , Her Joonyoung , Bunting Samuel F.
Published: September 2017

The BLM gene product, BLM, is a RECQ helicase that is involved in DNA replication and repair of DNA double-strand breaks by the homologous recombination (HR) pathway. During HR, BLM has both pro- and anti-recombinogenic activities, either of which may contribute to maintenance of genomic integrity. We find that in cells expressing a mutant version of BRCA1, an essential HR factor, ablation of BLM rescues genomic integrity and cell survival in the presence of DNA double-strand breaks. Improved genomic integrity in these cells is linked to a substantial increase in the stability of RAD51 at DNA double-strand break sites and in the overall efficiency of HR. Ablation of BLM also rescues RAD51 foci and HR in cells lacking BRCA2 or XRCC2. These results indicate that the anti-recombinase activity of BLM is of general importance for normal retention of RAD51 at DNA break sites and regulation of HR.
Subcentric linking systems
Authors: Henke Ellen
Published: September 2017

Linking systems are crucial for studying the homotopy theory of fusion systems, but are also of interest from an algebraic point of view. We propose a definition of a linking system associated to a saturated fusion system which is more general than the one currently in the literature and thus allows a more flexible choice of objects of linking systems. More precisely, we define subcentric subgroups of fusion systems in a way that every quasicentric subgroup of a saturated fusion system is subcentric. Whereas the objects of linking systems in the current definition are always quasicentric, the objects of our linking systems only need to be subcentric. We prove that, associated to each saturated fusion system

F

\mathcal {F}

, there is a unique linking system whose objects are the subcentric subgroups of

F

\mathcal {F}

. Furthermore, the nerve of such a subcentric linking system is homotopy equivalent to the nerve of the centric linking system associated to

F

\mathcal {F}

. We believe that the existence of subcentric linking systems opens a new way for a classification of fusion systems of characteristic

p
p

-type. The various results we prove about subcentric subgroups give furthermore some evidence that the concept is of interest for studying extensions of linking systems and fusion systems.
A disease-associated frameshift mutation in caveolin-1 disrupts caveolae formation and function through introduction of a de novo ER retention signal
Authors: Copeland Courtney A. , Han Bing , Tiwari Ajit , Austin Eric D. , Loyd James E. , West James D. , Kenworthy Anne K.
Published: September 2017

Caveolin-1 (CAV1) is an essential component of caveolae and is implicated in numerous physiological processes. Recent studies have identified heterozygous mutations in the CAV1 gene in patients with pulmonary arterial hypertension (PAH), but the mechanisms by which these mutations impact caveolae assembly and contribute to disease remain unclear. To address this question, we examined the consequences of a familial PAH-associated frameshift mutation in CAV1, P158PfsX22, on caveolae assembly and function. We show that C-terminus of the CAV1 P158 protein contains a functional ER-retention signal that inhibits ER exit and caveolae formation and accelerates CAV1 turnover in Cav1–/– MEFs. Moreover, when coexpressed with wild-type (WT) CAV1 in Cav1–/– MEFs, CAV1-P158 functions as a dominant negative by partially disrupting WT CAV1 trafficking. In patient skin fibroblasts, CAV1 and caveolar accessory protein levels are reduced, fewer caveolae are observed, and CAV1 complexes exhibit biochemical abnormalities. Patient fibroblasts also exhibit decreased resistance to a hypo-osmotic challenge, suggesting the function of caveolae as membrane reservoir is compromised. We conclude that the P158PfsX22 frameshift introduces a gain of function that gives rise to a dominant negative form of CAV1, defining a new mechanism by which disease-associated mutations in CAV1 impair caveolae assembly.
MemBrain-contact 2.0: a new two-stage machine learning model for the prediction enhancement of transmembrane protein residue contacts in the full chain
Authors: Yang Jing , Shen Hong-Bin
Published: September 2017

Motivation

Inter-residue contacts in proteins have been widely acknowledged to be valuable for protein 3 D structure prediction. Accurate prediction of long-range transmembrane inter-helix residue contacts can significantly improve the quality of simulated membrane protein models.

Results

In this paper, we present an updated MemBrain predictor, which aims to predict transmembrane protein residue contacts. Our new model benefits from an efficient learning algorithm that can mine latent structural features, which exist in original feature space. The new MemBrain is a two-stage inter-helix contact predictor. The first stage takes sequence-based features as inputs and outputs coarse contact probabilities for each residue pair, which will be further fed into convolutional neural network together with predictions from three direct-coupling analysis approaches in the second stage. Experimental results on the training dataset show that our method achieves an average accuracy of 81.6% for the top L/5 predictions using a strict sequence-based jackknife cross-validation. Evaluated on the test dataset, MemBrain can achieve 79.4% prediction accuracy. Moreover, for the top L/5 predicted long-range loop contacts, the prediction performance can reach an accuracy of 56.4%. These results demonstrate that the new MemBrain is promising for transmembrane protein’s contact map prediction.

Availability and implementation

http://www.csbio.sjtu.edu.cn/bioinf/MemBrain/

Supplementary information

Supplementary data are available at Bioinformatics online.