bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reconciling skyline and ranking queries
Authors: Ciaccia Paolo , Martinenghi Davide 
Published: September 2017

Traditionally, skyline and ranking queries have been treated separately as alternative ways of discovering interesting data in potentially large datasets. While ranking queries adopt a specific scoring function to rank tuples, skyline queries return the set of non-dominated tuples and are independent of attribute scales and scoring functions. Ranking queries are thus less general, but usually cheaper to compute and widely used in data management systems.
We propose a framework to seamlessly integrate these two approaches by introducing the notion of restricted skyline queries (R-skylines). We propose R-skyline operators that generalize both skyline and ranking queries by applying the notion of dominance to a set of scoring functions of interest. Such sets can be characterized, e.g., by imposing constraints on the function's parameters, such as the weights in a linear scoring function. We discuss the formal properties of these new operators, show how to implement them efficiently, and evaluate them on both synthetic and real datasets.
State management in Apache Flink®
Authors: Carbone Paris , Ewen Stephan , Fóra Gyula , Haridi Seif , Richter Stefan , Tzoumas Kostas 
Published: September 2017

Stream processors are emerging in industry as an apparatus that drives analytical but also mission critical services handling the core of persistent application logic. Thus, apart from scalability and low-latency, a rising system need is first-class support for application state together with strong consistency guarantees, and adaptivity to cluster reconfigurations, software patches and partial failures. Although prior systems research has addressed some of these specific problems, the practical challenge lies on how such guarantees can be materialized in a transparent, non-intrusive manner that relieves the user from unnecessary constraints. Such needs served as the main design principles of state management in Apache Flink, an open source, scalable stream processor.
We present Flink's core pipelined, in-flight mechanism which guarantees the creation of lightweight, consistent, distributed snapshots of application state, progressively, without impacting continuous execution. Consistent snapshots cover all needs for system reconfiguration, fault tolerance and version management through coarse grained rollback recovery. Application state is declared explicitly to the system, allowing efficient partitioning and transparent commits to persistent storage. We further present Flink's backend implementations and mechanisms for high availability, external state queries and output commit. Finally, we demonstrate how these mechanisms behave in practice with metrics and large-deployment insights exhibiting the low performance trade-offs of our approach and the general benefits of exploiting asynchrony in continuous, yet sustainable system deployments.
Relationship between PD-L1 expression and clinical characteristics in patients with breast invasive ductal carcinoma
Authors: Lou Jian , Zhou Yuefen , Huang Jianhui , Qian Xiaojun 
Published: September 2017

Abstract

Objective
To evaluate the expression of PD-L1 (programmed death 1 ligand 1, PD-L1) and its clinical significance in breast invasive ductal carcinoma.

Methods
Tumor samples were collected from 64 cases of breast invasive ductal carcinoma patients, and tumor adjacent normal breast tissue were obtained as normal control. The expression of PD-L1 were examined by immunohistochemical staining and real time PCR assay, its correlations with patients’ clinical pathological characteristics were analyzed.

Results
PD-L1 was found to be over-expressed in 24 of 64 (37.5%) breast invasive ductal carcinoma samples, while in 1 of 22 (4.5%) tumor adjacent normal breast tissue which indicated PD-L1 was higher expressed in breast invasive ductal carcinoma samples than the tumor adjacent normal breast tissue (P < 0.05). PD-L1 positive expression was associated with clinical pathological characteristics of TNM stage and pathology grading (P < 0.05). However, PD-L1 positive expression was not correlated with age (P > 0.05), menstruation status (P >0.05), family history of breast cancer (P > 0.05), tumor diameter (P > 0.05), lymph node metastasis (P > 0.05) and tumor location (P > 0.05).

Conclusion
PD-L1 may play an important role in invasive ductal carcinoma, which could be a potential indicator for advanced clinical stage and poor prognosis.
PENGGUNAAN PAKAN PREMATURASI UNTUK PENINGKATAN PERKEMBANGAN GONAD PADA CALON INDUK IKAN BANDENG (Chanos chanos Forsskal)
Authors: Marzuqi Muhammad , Giri I Nyoman Adiasmara , Setiadharma Tony , Andamari Retno , Andriyanto Wawan , Astuti Ni Wayan Widya 
Published: September 2017

Ikan bandeng (Chanos chanos Forsskal) merupakan jenis ikan laut yang mempunyai nilai ekonomis dan komoditas unggulan perikanan. Untuk menanggulangi kendala kualitas benih bandeng yang kurang baik maka perlu disiapkan induk bandeng berkualitas baik dengan melakukan seleksi, serta pemberian pakan berkualitas baik, khususnya pakan untuk mendukung perkembangan organ reproduksi atau pakan prematurasi. Tujuan penelitian ini adalah mendapatkan informasi tentang penggunaan pakan prematurasi untuk perkembangan gonad calon induk dan keragaan reproduksi ikan bandeng. Penelitian ini menggunakan 80 ekor calon induk ikan bandeng berumur tiga tahun dengan bobot rata-rata 1,9 ± 0,25 kg. Ikan dipelihara dalam dua buah bak beton kapasitas 100 m3 dan masing-masing diberi pakan prematurasi yang merupakan pakan komersial yang diperkaya dengan dua jenis formulasi bahan pengkaya yang berbeda. Pakan diberikan sebanyak 3,0% dari total biomassa ikan per hari. Masing-masing bak dilengkapi dengan aerasi dan sistem air mengalir dengan pergantian air mencapai 200%-300% per hari. Parameter yangdiamati adalah perkembangan oosit, sperma, dan kematangan gonad, serta pemijahan. Hasil penelitian menunjukkan bahwa pakan prematurasi memacu perkembangan dan kematangan gonad dengan baik. Pada grup calon induk yang diberi pakan prematurasi B diperoleh tiga ekor induk betina mengalami perkembangan oosit tingkat large vitelogenesis (diameter > 500 μm) dan kematangan sperma induk jantan sebanyak 15 ekor. Pada grup calon induk yang diberi pakan premeturasi A terdapat satu ekor induk betina mengalami perkembangan oosit tingkat small vitelogenesis (diameter < 300 μm) dan kematangan sperma jantan dua ekor.
EFIKASI VAKSIN IN-AKTIF BAKTERI Aeromonas hydrophila-AHL0905-2 (HYDROVAC) dan Streptococcus agalactiae-N14G (STREPTOVAC) UNTUK PENCEGAHAN PENYAKIT BAKTERIAL PADA IKAN BUDIDAYA AIR TAWAR
Authors: Taukhid Taukhid , Purwaningsih Uni , Sugiani Desy , Sumiati Tuti , Lusiastuti Angela Mariana 
Published: September 2017

Penelitian bertujuan untuk mengetahui efektivitas penggunaan vaksin hydrovac dan streptovac untuk pencegahan penyakit bakterial, motile aeromonad septicaemia (MAS) dan streptococcosis pada beberapa jenis ikan budidaya air tawar. Pengujian dilakukan pada skala laboratorium dan lapang. Jenis ikan uji yang digunakan adalah ikan lele, nila, dan gurami. Vaksinasi ikan dilakukan melalui teknik perendaman dengan dosis dan periode sesuai instruksi penggunaan yang tertera pada label produk kedua jenis vaksin tersebut. Efektivitas vaksin dievaluasi berdasarkan pendekatan nilai persen sintasan dan selanjutnya dihitung nilai relative percentage survival (RPS). Hasil penelitian diketahui bahwa nilai RPS vaksin hydrovac pada skala laboratorium pada ikan lele, nila, dan gurami masing-masing sebesar 85,45%; 65,78%; dan 52,28%. Nilai RPS yang dicapai oleh vaksin streptovac terhadap ikan nila sebesar 54,53%. Sementara, nilai RPS vaksin hydrovac pada skala lapang untuk jenis ikan lele, nila, dan gurami masing-masing 70,15%; 52,43%; dan 42,43%; sedangkan nilai RPS yang dicapai oleh vaksin streptovac adalah 40,41%.
Consensus for Heterogeneous Multi-Agent Systems with Directed Network Topologies
Authors: Zhu Meiling , Xu Yong , Zhao Rui 
Published: September 2017

AbstractIn this paper, the consensus problem for heterogeneous multi-agent systems composed of first-order and second-order agents is investigated with directed network topologies. Based on a system transformation method, this consensus problem is turned into a consensus problem for homogeneous multi-agent systems. With certain assumption on the control parameters, firstly, necessary and sufficient condition for consensus is proposed with fixed topology. Secondly, sufficient condition is proposed for heterogeneous multi-agent systems to achieve consensus with switching topologies. Finally, simulation examples are presented to verify the effectiveness of the theoretical results.
عقد الزواج وما يتعلق به من الوسائل المستحدثة
Authors: Musyaffa' Fadlolan 
Published: September 2017

<p>A mujtahid has an important role in answering legal issues that arise in the community. His position is to replace the role of the prophet in exposing and explaining the law of God in the nash. This article attempts to discuss the terms of the Mujtahids according to the scholars of Islamic law and the possibility of reaching these conditions in the present. The majority of contemporary scholars allow the ceremony of marriage with modern means of direct communication, as well as through modern means such as computers and the internet that can mutually make marriage contract. Now, there is modern tool through a visual phone that can display images of all components that make contract who can listen to each other and see between the two people who perform the contract and witnessed both witnesses, then the contract is valid, because it has qualified and get along in the marriage contract.<br />---<br /><br />Seorang mujtahid memiliki peranan penting dalam menjawab permasalahan hukum yang muncul dimasyarakat. Karena pentingnya peran mujtahid tersebut, diperlukan syarat-syarat dalam berijtihad agar ijtihadnya benar dan sesuai kehendak Allah. Tulisan ini mencoba membahas syarat-syarat mujtahid menurut para ulama hukum Islam serta kemungkinan meraih syarat-syarat tersebut pada masa sekarang ini. Mengingat akad nikah memiliki spesifikasi yang khusus dan unik disbanding dengan akad-akad lain, maka terjadi khilaf antara ulama tentang kemungkinan akad melalui sarana komunikasi yang terbarkan. Mayoritas ulama kontemporer memperbolehkan akad nikah dengan sarana komunikasi modern langsung, maupun melalui sarana modern seperti komputer dan internet yang bisa saling melakukan akad nikah.Apalagi sekarang telah ditemuakan alat modern melalui telepon visual yang bisa menampilkan gambar semua komponen yang melakukan akad yang bisa saling mendengarkan suara dan melihat antar kedua orang yang melakukan akad serta disaksikan kedua orang saksi, maka akad tersebut adalah sah, karena telah memenuhi syarat dan rukun dalam akad nikah.</p><p> </p>
Estudio de Paulownia spp. como cultivo forestal de rotación corta para fines energéticos en condiciones mediterráneas
Authors: Fernández-Puratich Harald , Oliver-Villanueva José Vicente , Lerma-Arce Victoria , García María Dolores , Raigón María Dolores 
Published: September 2017

Las plantaciones de rotación corta desempeñan un papel importante como fuente biomásica energética sostenible que puede aumentar la seguridad del suministro, la generación de ingresos en comunidades rurales locales y disminuir la dependencia energética de combustibles fósiles. En este sentido, las plantaciones de rotación corta han sido ampliamente reconocidas, lo que hace necesario aumentar las alternativas de fuentes biomásicas disponibles para su uso energético. El objetivo de este estudio fue cuantificar la biomasa leñosa y el potencial energético de la especie arbórea paulonia (Paulownia spp.) de un año de edad en condiciones mediterráneas. Se seleccionaron parcelas de prueba en la Comunidad Valenciana (España oriental) para desarrollar un modelo predictivo de cuantificación de biomasa y su potencial energético, en dos tipos de parcelas según densidad y existencia de riego (P1 y P2), siendo el promedio efectivo de biomasa por hectárea (el fuste es hueco en su sección medular en un 19,2%) en P1 y P2 de 27,3 t ha-1 a 47,6 t ha-1, respectivamente. En cuanto al potencial energético, los ensayos de laboratorio muestran que paulonia posee un poder calorífico de 17,8 MJ kg-1, su energía potencial en P1 es de 207 MJ árbol-1y 247 GJ ha-1 y mayor en P2 con 349 MJ árbol-1 y 274 GJ ha-1. Teniendo en cuenta el rápido crecimiento de esta especie y su alto potencial energético, debería considerarse como una materia prima válida para su uso en energía térmica a corto plazo en zonas mediterráneas.
Estudio cinético de bacterias metanogénicas a diferentes temperaturas.
Authors: Pedraza Angela Cajiao , Chona Jarson Alexis Rodriguez , Maldonado Julio Isaac Maldonado , Carrillo Jorge Luis Ortiz 
Published: September 2017

En este estudio se empleó, un consorcio microbiano previamente aislado de la fase metanogénica de un filtro anaerobio de flujo ascendente separado en dos fases DI-FAFS. El proyecto tuvo por objeto analizar y describir el comportamiento cinético de Methanobacterium spp y Methanococcus spp respectivamente, empleando condiciones anaerobias y la variable de temperatura como principal punto de partida en el proceso. Para llevar a cabo el procedimiento respectivo se realizó un pre-inoculo de los microorganismos en estudio 18hrs antes , luego se tomó el volumen correspondiente y se llevó el inoculo al medio respectivo utilizado para el crecimiento, bajos condiciones estrictas de anaerobiosis; se evaluó a diferentes periodos de incubación bajo agitación 155 rpm, seguidamente se procedió a la medida de absorbancias tomando la lectura de D.O a 620 nm, al mismo tiempo sembrando en agar para conteo respectivo y obtener UFC/ML. Finalmente se realizó una curva de crecimiento para cada microorganismos a las tres diferentes temperaturas (20°C, 27°C y 34°C), encontrando que tanto los resultados prácticos como teóricos sustentan que dicho consorcio microbiano en la fase metanogénica requiere una temperatura óptima de crecimiento, hallando así que el mejor comportamiento del crecimiento de Methanobacterium spp y Methanococcus spp se encuentra en las temperaturas de 27°C y 34°C.
THE DEVELOPMENT OF BIOLOGY PRACTICUM LEARNING BASED ON VEE DIAGRAM FOR REDUCING STUDENT COGNITIVE LOAD
Authors: Hindriana Anna Fitri 
Published: September 2017

Practicum is a process to gain meaningful knowledge through hands on and minds on activity, thusplan is needed in practicum to connect the conceptual side and methodological side. Vee diagram-based Biology practicum learning was arranged to lower cognitive load of student in designing experiment so the practicum activity become meaningful because the students can see the interesting side in both conceptual side and methodological side. The design that being used in this study was educational study and development. Based on the result of this study, it can be informed that there is lowering of student cognitive load, both in extraneous load and germane load, in designing experiment based on vee diagram
Understanding, Evaluating, and Monitoring Internal Control Systems: A Case and Spreadsheet Based Pedagogical Approach
Authors: Davis Jefferson T. , Ramamoorti Sridhar , Krull George W. 
Published: September 2017

ABSTRACT
This paper describes a case approach for teaching internal control evaluation (ICE) using an Excel spreadsheet patterned after software from Grant Thornton LLP (Grant) named INFOCUS. Although INFOCUS is not used or supported anymore by Grant, it was used for many years in training and development for ICE theory and application at the firm. Grant allows use of their software and approach for classroom use. From a conceptual pedagogy perspective, this approach is still applicable to current practice standards and guidelines for ICE and provides a systematic application to help students take the role of an auditor to document the accounting system, document the controls, select key controls, and make the preliminary control risk assessment. The case and spreadsheet application can also be applied to the COSO 2013 Framework focusing mostly on Risk Assessment, Control Activities, and Monitoring Activities to internal control systems. The spreadsheet application can accommodate cases that provide differing company sizes and levels of automated control environments for internal audit and management perspectives. This case and spreadsheet application provides students an opportunity to deeply understand and analyze the accounting processes, the internal controls, and the interrelationships between the processes and controls. Exposure to such a case and spreadsheet application helps prepare students to successfully complete internal control evaluations in the “real world.”
A Look Back at the First Seven Years of the AIS Educator Journal
Authors: Fordham David R. 
Published: September 2017

ABSTRACT
At the 2003 meeting of the AIS Educator Association, an idea for an on-line resource for AIS educators was first introduced. The idea evolved into the AIS Educator Journal, the first completely on-line academic journal in the accounting education field. Since the first issue went live on-line in 2006, sufficient manuscripts has been blind-reviewed and accepted to provide an annual volume each year. A total of 31 articles by 60 authors and co-authors have been published. This article provides a brief history of the journal and a summary analysis of the first seven volumes.
INELASTIC RESPONSES OF SWOLLEN NITRILE RUBBER UNDER CYCLIC LOADING
Authors: Loo Mei Sze , Le Cam Jean Benoît , Andriyana Andri , Robin Eric 
Published: September 2017

ABSTRACT
Palm biodiesel is deemed a promising future fuel substitute for conventional diesel fuel. In line with this perspective, necessary changes in the existing diesel engine system are expected in order to address the issue of material compatibility. One typical degradation observed in rubber components exposed to aggressive solvent such as palm biodiesel during the service is swelling. Thus, the investigation of the effect of swelling on the mechanical response under cyclic loading is prerequisite for durability analysis of such components. In this study, filled and unfilled swollen nitrile rubbers are immersed in conventional diesel and palm biodiesel baths until a 5% swelling level is achieved. Both dry and swollen rubbers are subjected to uniaxial cyclic loading tests. The analysis of the mechanical responses has shown that swelling decreases inelastic effects such as hysteresis, stress softening, and permanent set. For both dry and swollen rubbers, fillers are found to have significant effects in the inelastic responses, whereas the effects of solvent and loading rate are comparable.
Substantive or Symbolic Environmental Strategies? Effects of External and Internal Normative Stakeholder Pressures
Authors: Hyatt David G , Berente Nicholas 
Published: August 2017

AbstractDifferent forms of stakeholder pressures drive different environmental strategies in organizations. This article differentiates between internal and external normative stakeholder pressures to test their potentially unique effects on environmental strategies. The findings suggest that internal, normative stakeholder pressures primarily drive substantive commitments to environmental practices, reflecting an internalized, voluntary commitment to the natural environment and dedication to environmental leadership by the firm. External, normative pressures instead primarily drive symbolic commitments to environmental practices, aimed at managing the image of the organization to establish and reinforce an appearance of commitment to the natural environment. This novel perspective accounts for the institutionally plural contexts of organizations and their environments, in which internal pressures directly drive substantive environmental commitments and external pressures drive symbolic responses. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment
Copper Guanidinoquinoline Complexes as Entatic State Models of Electron‐Transfer Proteins
Authors: Stanek Julia , Sackers Nina , Fink Fabian , Paul Melanie , Peters Laurens , Grunzke Richard , Hoffmann Alexander , Herres‐Pawlis Sonja 
Published: August 2017

AbstractThe electron‐transfer abilities of the copper guanidinoquinoline (GUAqu) complexes [Cu(TMGqu)2]+/2+ and [Cu(DMEGqu)2]+/2+ (TMGqu=tetramethylguanidinoquinoline, DMEGqu=dimethylethylguanidinoquinoline) were examined in different solvents. The determination of the electron self‐exchange rate based on the Marcus theory reveals the highest electron‐transfer rate of copper complexes with pure N‐donor ligands (k11=1.2×104 s−1 m−1 in propionitrile). This is supported by an examination of the reorganisation energy of the complexes by using Eyring theory and DFT calculations. The low reorganisation energies in nitrile solvents correspond with the high electron‐transfer rates of the complexes. Therefore, the [Cu(GUAqu)2]+/2+ complexes act as good entatic states model of copper enzymes. The structural influence of the complexes on the kinetic parameters shows that the TMGqu system possesses a higher electron‐transfer rate than DMEGqu. Supporting DFT calculations give a closer insight into the kinetics and thermodynamics (Nelsen's four‐point method and isodesmic reactions) of the electron transfer.
X‐Ray Diffraction and Dielectric Investigations of Ferroelectric PbZr0.958Ti0.042O3, Antiferroelectric PbZrO3 and PbHfO3 Single Crystals in Superstrong Electric Fields up to 30 MV/m
Authors: Leontyev I.N. , Fesenko O.E. , Maslova O.A. , Posokhova S.V. , Leontyev N.G. 
Published: August 2017

AbstractFerroelectric rhombohedral phase (R3m) in PbZr0.958Ti0.042O3 and antiferroelectric orthorhombic phase (Pbam) in PbZrO3 and PbHfO3 are examined via X‐ray diffraction and dielectric methods in DC electric fields of 0 ≤ Е ≤ 3.0⋅107 V/m. Induced polarization Pi(E) and piezoelectric coefficient d33(Е) are found as functions of field from the experimental dependences of unit‐cell parameters and dielectric permittivity on the electric field E and exhibit similar behavior for BaTiO3 and PbZr0.958Ti0.042O3 single crystals. The unit‐cell parameters of antiferroelectric phases in PbZrO3 and PbHfO3 single crystals remain constant, while the electric fields correspond to induced phase transitions, and the dielectric permittivity slightly increases with the electric field.