bluuebunny/crossref_metadata_2025_split huggingface dataset:
Asymptotic estimates on the von Neumann inequality for homogeneous polynomials
Authors: Galicer Daniel , Muro Santiago , Sevilla-Peris Pablo 
Published: September 2018

Abstract
By the von Neumann inequality
for homogeneous polynomials there exists a positive constant

C

k
,
q

C_{k,q}

(n) such that for every k-homogeneous polynomial p in n variables and every
n-tuple of commuting operators (

T
1

T_{1}

,…,

T
n

T_{n}

) with

∑

i
=
1

n

∥

T
i

∥

q

≤
1

{\sum_{i=1}^{n}\|T_{i}\|^{q}\leq 1}

we have

∥

p
⁢

(

T
1

,
…
,

T
n

)

∥

ℒ
⁢

(
ℋ
)

≤

C

k
,
q

⁢

(
n
)

⁢

sup
⁡

{

|

p
⁢

(

z
1

,
…
,

z
n

)

|

:

∑

i
=
1

n

|

z
i

|

q

≤
1

}

.

\|p(T_{1},\ldots,T_{n})\|_{\mathcal{L}(\mathcal{H})}\leq C_{k,q}(n)\sup\Biggl{%
\{}|p(z_{1},\ldots,z_{n})|:\sum_{i=1}^{n}|z_{i}|^{q}\leq 1\Biggr{\}}.

For fixed k and q, we study the asymptotic growth of the smallest constant

C

k
,
q

C_{k,q}

(n) as n (the number of variables/operators) tends to infinity.
For q =

∞

\infty

, we obtain the correct asymptotic behavior of this constant (answering a question posed by
Dixon in the 1970s). For 2

≤

\leq

q

<

<

∞

\infty

we improve some lower bounds given by Mantero and Tonge, and
prove the asymptotic behavior up to a logarithmic factor. To achieve this we provide estimates of the norm of
homogeneous unimodular Steiner polynomials, i.e. polynomials such that the multi-indices corresponding to the nonzero
coefficients form partial Steiner systems.
Error-bounded and Number-bounded Approximate Spatial Query for Interactive Visualization
Authors: Qiu Agen , Zhang Zhiran , Qian Xinlin , He Wangjun 
Published: September 2018

AbstractIn the big data era, an enormous amount of spatial and spatiotemporal data are generated every day. However, spatial query result sets that satisfy a query condition are very large, sometimes over hundreds or thousands of terabytes. Interactive visualization of big geospatial data calls for continuous query requests, and large query results prevent visual efficiency. Furthermore, traditional methods based on random sampling or line simplification are not suitable for spatial data visualization with bounded errors and bound vertex numbers. In this paper, we propose a vertex sampling method—the Balanced Douglas Peucker (B-DP) algorithm—to build hierarchical structures, where the order and weights of vertices are preserved in binary trees. Then, we develop query processing algorithms with bounded errors and bounded numbers, where the vertices are retrieved by binary trees’ breadth-first-searching (BFS) with a maximum-error-first (MEF) queue. Finally, we conduct an experimental study with OpenStreetMap (OSM) data to determine the effectiveness of our query method in interactive visualization. The results show that the proposed approach can markedly reduce the query results’ size and maintain high accuracy, and its performance is robust against the data volume.
The Significance of Megalithic Monuments in the Process of Place Identity Creation and in Tourism Development
Authors: Krzemińska Alicja Edyta , Dzikowska Anna , Zaręba Anna Danuta , Jarosz Katarzyna Rozalia , Widawski Krzysztof , Łach Janusz Stanisław 
Published: September 2018

AbstractAll over the world and for thousands of years, megaliths have been significant cultural elements, as well as sacred sites and places of power. Nowadays megaliths act as a strong magnet for tourists, who appreciate their history, esoterica and magic. Some megaliths were used for astronomical observations, so vital to maintain the continuity of harvest and crop. Other megalithic constructions were erected for funerary purposes, and served as individual or collective burial chambers. Megalithic structures are usually referred to as belonging to the European Neolithic but it has to be stressed that some megalithic constructions date back to the Bronze Age, and some were also built on other continents. Megaliths are a vital element of landscape and for historical reasons they are a sui generis monument, commemorating prehistorical cultures. At the same time, along with the remaining elements of the natural and cultural environment, they create a unique image of place identity, attracting large numbers of tourists. Interestingly, despite the strong attraction exercised by megaliths, there are still many places where tourism does not develop as rapidly as might be assumed. For the above-mentioned reasons, a comparative analysis of several megalithic sites has been conducted in Poland, Sweden, Portugal and Denmark. The following elements have been analysed: the megaliths immediate surroundings, the existing and planned or under-construction tourist and communication infrastructure, as well as architectural and spatial technical solutions and development. Also the key negative and positive elements have been defined which influence the tourist potential of the places in question, and constitute the tourism attractiveness factors of a region.
A sharp boundedness result for restricted maximal operators of Vilenkin–Fourier series on martingale Hardy spaces
Authors: Blahota István , Nagy Karoly , Persson Lars-Erik , Tephnadze George 
Published: September 2018

Abstract
The restricted maximal operators of partial sums with respect to bounded Vilenkin systems are investigated. We derive the maximal subspace of positive numbers, for which this operator is bounded from the Hardy space

H
p

{H_{p}}

to the Lebesgue space

L
p

{L_{p}}

for all

0
<
p
≤
1

{0<p\leq 1}

. We also prove that the result is sharp in a particular sense.
Estimations of GNSS receiver internal delay using precise point positioning algorithm
Authors: Pothikunkupatarak Natchapan , Thongtan Thayathip , Satirapod Chalermchon 
Published: September 2018

Abstract
Random and systematic errors affect navigation satellite observations on both pseudo-range and carrier phase. These errors are originated at satellites, propagation path and receivers. This study focuses on the GNSS receiver internal delay determination resulting from the receiver’s electronics circuit. The characterisation of the delay in the GNSS geodetic receivers is essential to enhance the accuracy for the time transfer and time comparisons as part of GNSS integrity chain determinations. The purpose of GNSS receiver internal delay at the National Institute of Metrology (Thailand), NIMT, is to estimate the characteristics and performances of the GNSS geodetic receiver used for international time comparisons. The experiments are simultaneously observed GNSS satellites by a GPS and a GNSS receivers and two separate antennas with short baseline (around 6 metres), where both receivers are connected to the identical external caesium frequency standard maintained as time and frequency standard of Thailand. The GPS receiver is well-defined for its receiver internal delay on the pseudo-range observation of C1, through comparisons using an internationally recognised method, while the geodetic GNSS receiver is to be defined on its receiver internal delay. These experiment observations started from 26 December 2017 to 17 January 2018 at NIMT, Pathumthani, Thailand. The determined unknowns are receiver position, receiver clock offset, tropospheric delay through the geodetic technique of static Precise Point Positioning observations with Bernese GNSS software version 5.2. Later the receiver internal delay of NIMT is computed and analysed. The receiver internal delay on GPS C1 code is successfully characterised, resulted as 346.0 nanoseconds as of this experiment.
Multi-prover proof of retrievability
Authors: Paterson Maura B. , Stinson Douglas R. , Upadhyay Jalaj 
Published: September 2018

Abstract
There has been considerable recent interest in “cloud storage” wherein a user asks a server to store a large file. One issue is whether the user can verify that the server is actually storing the file, and typically a challenge-response protocol is employed to convince the user that the file is indeed being stored correctly. The security of these schemes is phrased in terms of an extractor which will recover the file given any “proving algorithm” that has a sufficiently high success probability. This forms the basis of proof-of-retrievability (PoR) systems.
In this paper, we study multiple server PoR systems. We formalize security definitions for two possible scenarios:
(i) A threshold of servers succeeds with high enough probability (worst case), and (ii) the average of the success probability of all the servers is above a threshold (average case).
We also motivate the study of confidentiality of the outsourced message. We give MPoR schemes which are secure under both these security definitions and provide reasonable confidentiality guarantees even when there is no restriction on the computational power of the servers. We also show how classical statistical techniques previously used by us can be extended to evaluate whether the responses of the provers are accurate enough to permit successful extraction.
We also look at one specific instantiation of our construction when instantiated with the unconditionally secure version of the Shacham–Waters scheme.
This scheme gives reasonable security and privacy guarantee. We show that, in the multi-server setting with computationally unbounded provers, one can overcome the limitation that the verifier needs to store as much secret information as the provers.
DAGS: Key encapsulation using dyadic GS codes
Authors: Banegas Gustavo , Barreto Paulo S. L. M. , Boidje Brice Odilon , Cayrel Pierre-Louis , Dione Gilbert Ndollane , Gaj Kris , Gueye Cheikh Thiécoumba , Haeussler Richard , Klamti Jean Belo , N’diaye Ousmane , Nguyen Duc Tri , Persichetti Edoardo , Ricardini Jefferson E. 
Published: September 2018

Abstract
Code-based cryptography is one of the main areas of interest for NIST’s Post-Quantum Cryptography Standardization call. In this paper, we introduce DAGS, a Key Encapsulation Mechanism (KEM) based on quasi-dyadic generalized Srivastava codes. The scheme is proved to be IND-CCA secure in both random oracle model and quantum random oracle model. We believe that DAGS will offer competitive performance, especially when compared with other existing code-based schemes, and represent a valid candidate for post-quantum standardization.
Analysis of a constructive matheuristic for the traveling umpire problem
Authors: Chandrasekharan Reshma Chirayil , Toffolo Túlio A.M. , Wauters Tony 
Published: September 2018

Abstract
The Traveling Umpire Problem (TUP) is a combinatorial optimization problem concerning the assignment of umpires to the games of a fixed double round-robin tournament. The TUP draws inspiration from the real world multi-objective Major League Baseball (MLB) umpire scheduling problem, but is, however, restricted to the single objective of minimizing total travel distance of the umpires. Several hard constraints are employed to enforce fairness when assigning umpires, making it a challenging optimization problem. The present work concerns a constructive matheuristic approach which focuses primarily on large benchmark instances. A decomposition-based approach is employed which sequentially solves Integer Programming (IP) formulations of the subproblems to arrive at a feasible solution for the entire problem. This constructive matheuristic efficiently generates feasible solutions and improves the best known solutions of large benchmark instances of 26, 28, 30 and 32 teams well within the benchmark time limit. In addition, the algorithm is capable of producing feasible solutions for various small and medium benchmark instances competitive with those produced by other heuristic algorithms. The paper also details experiments conducted to evaluate various algorithmic design parameters such as subproblem size, overlap and objective functions.
State maps on semihoops
Authors: Fu Yu Long , Xin Xiao Long , Wang Jun Tao 
Published: September 2018

Abstract
In this paper, we introduce the notion of state maps from a semihoop H
1 to another semihoop H
2, which is a generalization of internal states (or state operators) on a semihoop H. Also we give a type of special state maps from a semihoop H
1 to H
1, which is called internal state maps (or IS-maps). Then we give some examples and basic properties of (internal) state maps on semihoops. Moreover, we discuss the relations between state maps and internal states on other algebras. Then we introduce several kinds of filters by state maps on semihoops, called SM-filters, state filters and dual state filters, respectively, and discuss the relations among them. Furthermore we introduce and study the notion of prime SM-filters on semihoops. Finally, using SM-filter, we characterize two kinds of state semihoops.
Effect of magnetic field on imbibition phenomenon in fluid flow through fractured porous media with different porous material
Authors: Gohil V. P. , Meher Ramakanta 
Published: September 2018

Abstract
In this paper, the counter-current Imbibition phenomenon is considered in a fractured heterogeneous porous medium with the consideration of different porous materials like fine sand, volcanic sand and glass beads and magnetic field effect. The Homotopy analysis method is used here to derive an expression for finding the saturation profiles in a fractured heterogeneous porous medium with and without considering the magnetic field effect. Simulation results are developed for the saturation profiles to study the effect of inclination and the viscosity variation of native fluids on the saturation rate and the recovery rate of the reservoir with some interesting choices of parameters.
Finger, Text, and Moon: Dennis Hirota and Iwasaki Tsuneo
Authors: Bermant Gordon 
Published: September 2018

Abstract
Dennis Hirota is a modern master of Shin Buddhism who for several decades has explicated the role of natural language in fostering Buddhist awakening. At the core of his oeuvre is the claim that Shin Buddhism’s founder, Shinran Shonin (1173-1263), accepted the earlier Mahayana teaching of nondual awareness as a necessary condition for awakening. Shinran’s unique contribution was to insist that ordinary persons were, as a matter of historical circumstance, incapable of the disciplines required to arrive at non-dual awareness. It was just this circumstance that the historical Buddha foresaw when he taught the Larger Pure Land Sutra, in which the mind of the Buddha Amida, perfect wisdom and compassion, became available to ordinary people who call his Name in joyful sincerity. This is a difficult teaching of “non-practice” that embraces many subtleties. As a heuristic to ease the way into Shinran as Hirota presents him, this paper introduces a painting by the modern Japanese scientist and artist, Iwasaki Tsuneo. This is not a “Shin painting,” but certainly a “Mahayana painting” that connects the aspiration of an ordinary person to ultimate truth through the text of the Heart Sutra, arguably the quintessential Buddhist teaching of non-dual awareness.
Perceived Healthiness of Breakfasts in Women with Overweight or Obesity Match Expert Recommendations
Authors: Laguna-Camacho Antonio , García-Manjarrez Eva , Frayn Mallory , Knäuper Bärbel , Domínguez-García Ma V. , Escalante-Izeta Ericka I. 
Published: September 2018

Abstract The aim of the present study was to examine the perceived healthiness of breakfasts and the underlying beliefs influencing that perception against expert nutritional evaluation. Women with overweight or obesity (N = 120) were asked to recall the food items they consumed during a recent “healthy” or “unhealthy” breakfast. They also reported why the breakfast was healthy or unhealthy and rated its healthiness. Two nutritionists categorised the beliefs about why the breakfasts were “healthy” or “unhealthy” and evaluated the healthiness of each breakfast following nutrition guidelines. Generally, the meals considered as healthy versus unhealthy breakfasts and related beliefs about why the breakfasts were healthy or unhealthy matched food-based nutrition guidelines. Participants were found to perceive healthy breakfasts as more healthy and unhealthy breakfasts as less healthy than nutritionists did. Participants frequently mentioned the belief that their breakfast was healthy because “it contained fruit” or that their breakfast was unhealthy because “it contained fat.” Such salient healthy or unhealthy food items may guide the perception of breakfast healthiness and could be a target for nutrition counselling.
Experimental Study of Competing Failure of Reinforced Concrete Based on the Weibull Distribution
Authors: Feng Qiong , Qiao Hongxia , Wang Penghui , Zhu Binrong , Ndahirwa Desire 
Published: September 2018

Abstract
To predict the failure lifetime of reinforced concrete, a current accelerating corrosion test was performed on concrete by simulating the environment in an area with saline soil. To study the concrete’s process of deterioration under these conditions, this study selected the corrosion current density of the steel bars and the ultrasonic velocity of the concrete as the main factors in accelerated corrosion degradation. Then, by using the Weibull distribution function to model the degradation process, the study obtained the reliability function of the accelerated failure. The results showed that the corrosion current density of the steel bars and the ultrasonic velocity of concrete can be used as degradation factors of reinforced concrete, but the corrosion current density is more stable, which is propitious for modeling. Further, the Weibull distribution function can describe the durability degradation process of reinforced concrete effectively. Because of the high content of corrosive ions in saline soil, the reinforced concrete cover fails first.
The Global Stability Performance and Design Method of the Mono-Overhanging Steel Beam
Authors: Li Kun , Sun Kaichang 
Published: September 2018

Abstract
This article presents a research and design method for the global stability of the mono-overhang steel beam, which is very different from other kinds of beams. First, the total potential energy equation of the mono-overhanging beam is deduced by energy method. Then, the critical bending moment formula of the global stability is deduced based on its boundary conditions. Second, by introducing the equivalent calculated length coefficient, the critical bending moment equation is transformed into the form that is the same as that of a simply supported beam subjected to the uniform moment. This transformation can make stable design more convenient. At last, the impact factors of the calculated length coefficient of the global stability are determined. Furthermore, the formulas of the equivalent calculated length coefficients are proposed, which reflect the comprehensive interrelation between the equivalent calculated length coefficient and its impact factors. These formulas are continuous functions so that the calculation results are more precise and practical than before because in the previous method, the calculated length coefficient is taken as a piecewise constant value, which has led to a large error in the past.
La morfologización de las armonizaciones vocálicas en el centro de Asturias: innovación y escisión protorromance
Authors: Viejo Fernández Xulio 
Published: September 2018

La metafonía románica tiene una importante dimensión morfológica por cuanto sus resultados fonéticos repercuten en la marcación de valores distintivos tanto en el verbo como en nombres y adjetivos. Es el caso de su variedad asturiana, donde la inflexión ante morfema flexivo –u contribuye a la caracterización del masculino singular (pirru) frente a femeninos y plurales (perra, perros) y adjetivos neutros (nigru, pero negra o negro). Este trabajo propone un enfoque actualizado y comprensivo de estos fenómenos poniendo el foco en los procesos de morfologización de la inflexión vocálica de la región centro-meridional de Asturias. Siendo este un espacio de transición entre los dos grandes bloques dialectales del asturiano, un análisis detenido de sus peculiaridades puede ayudar a profundizar en las claves últimas de la diferenciación interna de este dominio y, por extensión, de todo el occidente peninsular.
Pengaruh Sistem Penilaian Kinerja dan Kompetensi Pegawai Terhadap Kinerja Pegawai
Authors: Sundari Siti 
Published: September 2018

Badan Kepegawaian Daerah Kabupaten Lamongan merupakan bagian dari lembaga pemerintahan daerah, yang mempunyai mempunyai tugas pokok yaitu Melaksanakan penyusunan dan pelaksanaan kebijakan Daerah di Bidang Kepegawaian , Pendidikan dan Pelatihan. Untuk mampu melaksanakan fungsi tersebut diperlukan pengelolaan yang baik terhadap sumber daya yang tersedia terutama terhadap sumber daya manusia yaitu pegawai, sehingga menghasilkan prestasi kerja yang baik yang membawa perubahan organisasi dan sekaligus kebijakan-kebijakan yang berkaitan dengan pegawai negeri sipil daerah. Untuk memperoleh keberhasilan organisasi diperlukan sistem penilaian kinerja yang tepat sehingga mampu mendeteksi kekuatan dan kelemahan pegawai, serta dapat terus meningkatkan kinerja pegawai diperiode berikutnya. Sistem penilaian kinerja merupakan bagian yang dapat menentukan keberhasilan organisasi dengan membandingkan antara hasil dengan standar yang telah ditetapkan. Penelitian yang dilakukan penulis mengungkapkan tidak hanya faktor-faktor yang berpengaruh terhadap variabel kinerja pegawai, tetapi terdapat satu faktor yang berpengaruh terhadap komptensi pegawai yaitu sistem penilaian kinerja. Faktor-faktor yang berpengaruh terhadap kinerja pegawai baik secara parsial maupun simultan yaitu sistem penilaian kinerja dan kompetensi pegawai.
Pengaruh Budaya Organisasi dan Kepuasan Kerja Terhadap Kinerja Pegawai
Authors: Garnida Agus 
Published: September 2018

Belum optimalnya kinerja pegawai di lingkungan Yayasan Taruna Bakti merupakan salah satu faktor yang menyebabkan Yayasan Taruna Bakti belum mampu bersaing secara optimal. Faktor-faktor yang diduga mempengaruhi kinerja pegawai di lingkungan Yayasan Taruna Bakti antara lain berkenaan dengan budaya organisasi dan kepuasan kerja pegawai. Dimana diduga kedua faktor tersebut menyebabkan naik turunnya kinerja pegawai di lingkungan Yayasan Taruna Bakti. Penelitian ini bertujuan untuk menganalisis tingkat budaya organisasi, kepuasan kerja pegawai, dan kinerja pegawai di lingkungan Yayasan Taruna Bakti Bandung; menganalisis dan mengukur adakah pengaruh budaya organisasi terhadap kinerja pegawai di lingkungan Yayasan Taruna Bakti Bandung; menganalisis dan mengukur adakah pengaruh kepuasan kerja pegawai terhadap kinerja pegawai di lingkungan Yayasan Taruna Bakti Bandung; serta menganalisis dan mengukur adakah pengaruh budaya organisasi dan kepuasan kerja pegawai terhadap kinerja pegawai di lingkungan Yayasan Taruna Bakti Bandung. Metode penelitian yang digunakan adalah deskriptif dan eksplanatori survei. Teknik sampling yang digunakan simple random sampling (SRS). Instrumen penelitian utama menggunakan angket. Teknik analisis data menggunakan analisis regresi linear berganda. Berdasarkan hasil penelitian, diketahui bahwa hubungan budaya organisasi dengan kinerja pegawai berada pada kisaran yang sedang. Hubungan kepuasan kerja dengan kinerja pegawai berada pada kisaran yang kuat. Hubungan budaya organisasi dan kepuasan kerja dengan kinerja pegawai berada pada kisaran yang sangat kuat. Budaya organisasi berpengaruh positif dan signifikan terhadap kinerja pegawai; kepuasan kerja berpengaruh positif dan signifikan terhadap kinerja pegawai; serta budaya organisasi dan kepuasan kerja berpengaruh positif dan signifikan terhadap kinerja pegawai secara simultan. Kepuasan kerja memberikan pengaruh lebih besar terhadap kinerja pegawai dibandingkan dengan budaya organisasi.