bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reconstruction-based 6D pose estimation for robotic assembly
Authors: Shi Zhongchen , Xu Kai , Li Zhang , Guan Banglei , Wang Gang , Shang Yang 
Published: October 2020

Pose estimation is important for many robotic applications including bin picking and robotic assembly and collaboration. However, robust and accurate estimation of the poses of industrial objects is a challenging task owing to the various object shapes and complex working environments. This paper presents a method of estimating the poses of narrow and elongated industrial objects with a low-cost RGB-D (depth and color) camera to guide the process of robotic assembly. The proposed method comprises three main steps: reconstruction involved in preprocessing, pose initialization with geometric features, and tracking aided by contour cues. Pose tracking is coupled with real-time dense reconstruction, which can synthesize a smooth depth image as a substitute for the raw depth image. Because industrial objects (e.g., fork and adapter) feature mostly planar structures, primitive geometric features, such as three-dimensional planes, are extracted from the point cloud and utilized to induce a promising initial pose. For robust tracking of the adapter consisting of narrow and elongated planes, the dense surface correspondences are combined with sparse contour correspondences in the refinement scheme. This combination allows for a satisfactory tolerance to the initial guess in the pose tracking phase. The experimental results demonstrate the feasibility of the proposed method.
Efficient preamble design and digital signal processing in upstream burst-mode detection of 100G TDM coherent-PON
Authors: Zhang Junwen , Jia Zhensheng , Xu Mu , Zhang Haipeng , Alberto Campos Luis 
Published: October 2020

Coherent optics has been proved to be a promising candidate for 100 Gb/s and even beyond single-wavelength time-division multiplexing passive optical networks (TDM-PONs). However, one of the key issues in TDM coherent-PON is how to efficiently and robustly achieve upstream burst-mode coherent detection. To solve this problem, we proposed and demonstrated a reliable and efficient preamble design with corresponding burst-mode digital signal processing (DSP) for coherent upstream burst-mode detection in TDM coherent-PON. To reduce the preamble length, a special designed preamble unit is used for three burst-mode DSP functions including frame synchronization, state-of-the polarization estimation, and frequency-offset estimation. The efficiency of the designed preamble and the overall performances under different test conditions are experimentally verified. We also confirmed the robust performance in large frequency offset, residual fiber dispersion, and long-time running. As a proof-of-concept, we demonstrate the coherent upstream burst-mode detection of 100-Gb/s polarization-division-multiplexed quadrature-phase-shift-keying (PDM-QPSK) signals based on a 71.68-ns preamble and corresponding burst-mode DSP, achieving a 36-dB power budget after 50-km single-mode fiber transmission. Around 20-dB dynamic range of received power is also experimentally verified for burst signals in the

100

Gb/s/

λ

TDM coherent-PON.
Mid-infrared microfiber Bragg gratings
Authors: Cai Dawei , Xie Yu , Wang Pan , Zhang Lei , Guo Xin , Tong Limin 
Published: October 2020

We report mid-infrared (mid-IR) Bragg gratings fabricated on sub-wavelength-diameter chalcogenide glass (ChG) microfibers. ChG microfibers with diameters around 3 µm are tapered drawn from

A

s

2

S

3

glass fibers, and the mid-IR microfiber Bragg gratings (mFBGs) are inscribed on microfibers using interference patterns of near bandgap light at a 532 nm wavelength. At a wavelength of about 4.5 µm, the mFBG has an extinction ratio of 15 dB and a positive photo-induced refractive index change of

2

×

1

0

−
2

. The dependence of the grating formation on accumulated influence of exposure power density and time is investigated. The mid-IR mFBGs demonstrated here may be used as building blocks for micro-photonic circuits or devices in the mid-IR spectral range.
Data security management and data protection for video conferencing software
Authors: John Nicolas , Wellmann Maximilian 
Published: October 2020

AbstractCorona crisis and video conferencing software – two terms that now belong together. However, the demands controllers have on video conferencing software can quickly reach the limits of data protection regulations. In recent years, the progressive development of video conferencing software has already excited many users and led to significant growth. In ad hoc situations, like the Corona pandemic, issues regarding data protection are all too often neglected. This is fatal considering the fact that the implementation of video conferencing software is accompanied by a large number of data protection and security issues that must be addressed and weighed up by the controller. At first glance, technically feasible solutions can quickly turn out to be “Trojan horses” and pose a serious threat to personal data. Therefore, the selection, set-up and use of data protection-compliant video conferencing software is of great importance for controllers. This article aims to examine relevant questions regarding data protection and security management from a European legal perspective. In particular, the detailed analysis of the requirements of the General Data Protection Regulation (GDPR) as well as the practical consequences for the controller should provide practicians an overview of the legal problems associated with the implementation and use of video conferencing software.
A reaction-diffusion system to better comprehend the unlockdown: Application of SEIR-type model with diffusion to the spatial spread of COVID-19 in France
Authors: Mammeri Youcef 
Published: October 2020

AbstractWe wondered that if a reaction-diffusion model considering only the mean daily movement of susceptible, exposed and asymptomatic individuals was enough to describe the spread of the COVID-19 virus. The model was calibrated using data on the confirmed infection and death from France as well as their initial spatial distribution. First, the system of partial differential equations is studied, then the basic reproduction number, 𝒭0is derived. Second, numerical simulations, based on a combination of level-set and finite differences, shown the spatial spread of COVID-19 from March 16 to June 16. Finally, scenarios of unlockdown are compared according to variation of distancing, or partially spatial lockdown.
On the Frobenius functor for symmetric tensor categories in positive characteristic
Authors: Etingof Pavel , Ostrik Victor 
Published: October 2020

Abstract
We develop a theory of Frobenius functors for symmetric tensor categories (STC)

𝒞

{\mathcal{C}}

over a field

𝒌

{\boldsymbol{k}}

of characteristic p, and give its applications to classification of such categories. Namely, we define a twisted-linear symmetric monoidal functor

F
:

𝒞
→

𝒞
⊠

Ver
p

{F:\mathcal{C}\to\mathcal{C}\boxtimes{\rm Ver}_{p}}

, where

Ver
p

{{\rm Ver}_{p}}

is the Verlinde category (the semisimplification of

Rep
𝐤

(

ℤ
/
p

)

{\mathop{\mathrm{Rep}}\nolimits_{\mathbf{k}}(\mathbb{Z}/p)}

); a similar construction of the underlying additive functor appeared independently in [K. Coulembier,
Tannakian categories in positive characteristic,
preprint 2019]. This generalizes the usual Frobenius twist functor in modular representation theory and also the one defined in [V. Ostrik,
On symmetric fusion categories in positive characteristic,
Selecta Math. (N.S.) 26 2020, 3, Paper No. 36], where it is used to show that if

𝒞

{\mathcal{C}}

is finite and semisimple, then it admits a fiber functor to

Ver
p

{{\rm Ver}_{p}}

. The main new feature is that when

𝒞

{\mathcal{C}}

is not semisimple, F need not be left or right exact, and in fact this lack of exactness is the main obstruction to the existence of a fiber functor

𝒞
→

Ver
p

{\mathcal{C}\to{\rm Ver}_{p}}

. We show, however, that there is a 6-periodic long exact sequence which is a replacement for the exactness of F, and use it to show that for categories with finitely many simple objects F does not increase the Frobenius–Perron dimension. We also define the notion of a Frobenius exact category, which is a STC on which F is exact, and define the canonical maximal Frobenius exact subcategory

𝒞
ex

{\mathcal{C}_{\rm ex}}

inside any STC

𝒞

{\mathcal{C}}

with finitely many simple objects. Namely, this is the subcategory of all objects whose Frobenius–Perron dimension is preserved by F. One of our main results is that a finite STC is Frobenius exact if and only if it admits a (necessarily unique) fiber functor to

Ver
p

{{\rm Ver}_{p}}

. This is the strongest currently available characteristic p version of Deligne’s theorem (stating that a STC of moderate growth in characteristic zero is the representation category of a supergroup). We also show that a sufficiently large power of F lands in

𝒞
ex

{\mathcal{C}_{\rm ex}}

. Also, in characteristic 2 we introduce a slightly weaker notion of an almost Frobenius exact category (namely, one having a fiber functor into the category of representations of the triangular Hopf algebra

𝒌
⁢

[
d
]

/

d
2

{\boldsymbol{k}[d]/d^{2}}

with d primitive and R-matrix

R
=

1
⊗
1

+

d
⊗
d

{R=1\otimes 1+d\otimes d}

), and show that a STC with Chevalley property is (almost) Frobenius exact. Finally, as a by-product, we resolve Question 2.15 of [P. Etingof and S. Gelaki,
Exact sequences of tensor categories with respect to a module category,
Adv. Math. 308 2017, 1187–1208].
Targeted design for adaptive clinical trials via semiparametric model
Authors: Zhang Hongbin , Yuan Ao , Tan Ming T. 
Published: October 2020

Abstract
Precision medicine approach that assigns treatment according to an individual’s personal (including molecular) profile is revolutionizing health care. Existing statistical methods for clinical trial design typically assume a known model to estimate characteristics of treatment outcomes, which may yield biased results if the true model deviates far from the assumed one. This article aims to achieve model robustness in a phase II multi-stage adaptive clinical trial design. We propose and study a semiparametric regression mixture model in which the mixing proportions are specified according to the subjects’ profiles, and each sub-group distribution is only assumed to be unimodal for robustness. The regression parameters and the error density functions are estimated by semiparametric maximum likelihood and isotonic regression estimators. The asymptotic properties of the estimates are studied. Simulation studies are conducted to evaluate the performance of the method after a real data analysis.
Determination of catastrophic sets of a tubular chemical reactor by two-parameter continuation method
Authors: Berezowski Marek 
Published: October 2020

AbstractThe work relates to development and presentation a two-parameter continuation method for determining catastrophic sets of stationary states of a tubular chemical reactor with mass recycle. The catastrophic set is a set of extreme points occurring in the bifurcation diagrams of the reactor. There are many large IT systems that use the parametric continuation method. The most popular is AUTO’97. However, its use is sometimes not convenient. The method developed in this work allows to eliminate the necessity to use huge IT systems from the calculations. Unlike these systems, it can be inserted into the program as a short subroutine. In addition, this method eliminates time-consuming iterations from the calculations.
A Reassessment of the Location of the Mural Paintings in the Caliphal Palace of Samarra
Authors: Dahmani Fatma 
Published: October 2020

Abstract
The mural paintings discovered in the Caliphal Palace of the ʿAbbāsid city of Samarra constitute a rare example of figural decoration in an urban Islamic palace as well as one of the most important testimonies to Medieval mural paintings that have come down to us from the region. However, as with the rest of the Samarra finds, these paintings suffered significant damage and were published several years after their excavation (Herzfeld, E., Die Malereien von Samarra, Berlin 1927). Although valuable in many respects, this publication presents a breach of methodology, as it does not attend to either the archaeological or architectural contexts. It also contains several information gaps and inaccuracies. One of the main issues not properly addressed is the exact location of the paintings within the building. Researching various archival and museum collections and taking into account studies on the interpretation of the palace layout, this analysis has shown that the location of the paintings is much more complex than indicated in the publication; these were found in both private areas of the complex and in a few public ones too. This is confirmed by some medieval texts, which provide important information for the study of this material.
Die irdische Schönheit (ḥusn) und die göttliche Schönheit (ǧamāl)
Authors: Jacobi Renate 
Published: October 2020

Abstract
Ibn al-Fāriḍ (gest. 632/1235), einer der bedeutendsten Dichter des Sufismus, entwickelt in seinem großen Lehrgedicht „Die Ordnung des Weges“ (Naẓm as-sulūk) eine mystische Ästhetik, indem er beschreibt, wie der Mensch die göttliche Schönheit (ǧamāl) erkennen kann, die sich in der irdischen Schönheit (ḥusn) manifestiert. Beide arabischen Begriffe haben in seinen Versen keine moralische Konnotation, worin er sich von anderen Sufis unterscheidet. Es ist ein Prozess der sinnlichen Wahrnehmung, an dem Geist (rūḥ) und Seele (nafs), sowie alle Sinnesorgane beteiligt sind. In diesem Prozess nehmen die Sinne die irdische Schönheit wahr und melden sie der Seele. Diese gibt die Botschaft an den Geist weiter, der allein imstande ist, die göttliche Essenz in der Materie zu erkennen. Am Ende des mystischen Weges, den Ibn al-Fāriḍ aus eigener Erfahrung schildert, hat er selbst die Stufe der kosmischen Einheit erreicht. Dort ist jede Trennung in Mikrokosmos und Makrokosmos aufgehoben. Im Mikrokosmos, im Menschen, fallen alle körperlichen Funktionen zusammen, sind austauschbar. Auf der Ebene des Makrokosmos sind die irdische Schönheit und die göttliche Schönheit eins geworden.
Price Premiums and Discounts for Australian Sparkling Wines
Authors: Oczkowski Edward 
Published: October 2020

Abstract
This paper assesses the price premiums and discounts for nine sparkling wine types or names commonly employed in Australia. Hedonic wine price functions are estimated for 10 years of wine releases to identify the specific price impact of different sparkling wine types or names, after controlling for other wine price determining factors. Results identify that important price premiums occur with the use of blanc de blancs and other less common sparkling reds. An important price discount is estimated for prosecco wines. Sparkling wine type interactions with climatic regional conditions and cellaring potential also point to some interesting results. The estimates may have potentially important implications for the strategic use of wine types and names by producers and for consumers in identifying good valued sparkling wines.
Fault source investigation of the 6 December 2016 MwMw 6.5 Pidie Jaya, Indonesia, earthquake based on GPS and its implications of the geological survey result
Authors: Gunawan Endra , Nishimura Takuya , Susilo Susilo , Widiyantoro Sri , Puspito Nanang T. , Sahara David P. , Hanifa Nuraini Rahma , Hidayati Sri , Omang Amalfi , Agustan Agustan 
Published: October 2020

Abstract
On 6 December 2016 at 22:03 UTC, a devastating magnitude 6-class strike-slip earthquake occurred along an unidentified and unmapped fault in Pidie Jaya, northern Sumatra. We analysed the possible fault using continuous Global Positioning System (GPS) observation available in the region. In our investigation, we searched for the fault source parameters of the north- and south-dipping left-lateral faults and the west- and east-dipping right-lateral faults. We identified that the fault responsible for the earthquake was located offshore, with a southwest-northeast direction. We also computed the Coulomb failure stress and compared the result with the distribution of the aftershocks. In this study, we demonstrated that the result of the geological field survey conducted soon after the mainshock was attributed to the secondary effects of ground shaking and near-surface deformation, and not surface faulting. The newly identified offshore fault proposed by this study calls for further investigation of the corresponding submarine morphological attributes in this particular region.
Mathematical modeling of optical impairments in DSP based WDM coherent system
Authors: Dahiya Sunil Kumar , Garg Amit Kumar 
Published: October 2020

Abstract
Optical transmission impairments are most critical reason to reduce both capacity and achievable transmission distance in optical communication system. Advanced modulation formats are important keys to reduce optical transmission impairments in digital signal processing (DSP) based coherent wavelength division multiplexed (WDM) system. These formats are more robust to non-linearity of optical fiber and results in increasing both spectral efficiency and bandwidth. Coherent detection technique increases sensitivity of receiver up to 30 dB in comparison of direct detection. Simulink seems to be the best cost-effective platform for analyzing mathematical modeling of optical coherent system. In this paper, mathematical model has been developed to analyze the optical transmission impairments by employing the advanced polarization multiplexed QPSK modulation in DSP based WDM coherent system. The simulation results have shown bit error rate (BER) improvement up to 10−6 and enhanced transmission distance to 150 km. These values have seen to be in close proximity with experimental results. The developed mathematical model seems to be more useful for extending the existing WDM optical system for longer distances with acceptable BER.
Crystal structure of catena-poly[(μ2-3-amino-benzenedisulfonato-κ2
N:O)-bis (3-methyl-isoquinoline-κN)silver(I)], C26H24N3O3SAg
Authors: Liu Xin , Zhao Han-Lin , Jiang Jin-Ke , Ma Si-Yu , Li Yong , Li Yu-Jie 
Published: October 2020

Abstract
C26H24N3O3SAg, monoclinic, P21/c (no. 14), a = 13.1936(9) Å, b = 11.0544(7) Å, c = 16.3653(9) Å, β = 99.214(6)°, V = 2356.0(3) Å3, Z = 4, R
gt(F) = 0.0495, wR
ref(F
2) = 0.1080, T = 293(2) K.
Association between frailty and risk of fall among diabetic patients
Authors: Wang Xiaojie , Chen Zhiyuan , Li Ziyi , Chen Bo , Qi Yong , Li Guowei , Adachi Jonathan D 
Published: October 2020

Background
Several epidemiological studies have demonstrated the risk factors for fall, while few studies investigated the association between frailty and risk of fall in diabetic patients aged ≥45 years.

Methods
In this multicity observational study, participants with type 2 diabetes aged ≥45 years were enrolled. Frailty status was measured by a frailty index (FI) of deficit accumulation. We used multivariable regression models to examine the relationship between frailty and fall in diabetic patients, and further investigated the associations between frailty and fall in varied subgroups.

Results
A total of 2049 participants with type 2 diabetes were identified in our study. Our results showed a per-s.d. and a per-0.01 increment of FI were associated with an increased risk of fall, with a fully adjusted OR of 1.89 (95% CI: 1.50, 2.38), 1.06 (95% CI: 1.04, 1.09), respectively. The effects were magnified when frailty was considered as dichotomous, with an OR of 3.08 (95% CI: 2.18, 4.34). In further subgroup analyses, we found that the females, the older, rural residents, individuals with no sitting toilet, people with poor balance performance and those in poor health status were susceptible to fall. Especially, for the risk of fall in the older, a per-s.d. increase of FI corresponded to an OR of 2.46 (95% CI: 1.68, 3.62). When frailty was regarded as a binary variable, the effect increased to 4.62 (95% CI: 2.54, 8.38) in the older subgroup.

Conclusion
Frailty was associated with a higher risk of fall in people with type 2 diabetes, and the effects were higher in vulnerable groups. This evidence suggested that more attention should be paid to vulnerable groups for fall prevention.
Genetic predisposition to neural crest-derived tumors: revisiting the role of KIF1B
Authors: Cardot Bauters Catherine , Leteurtre Emmanuelle , Carnaille Bruno , Do Cao Christine , Espiard Stéphanie , Penven Malo , Destailleur Evelyne , Szuster Isabelle , Lovecchio Tonio , Leclerc Julie , Frénois Fredéric , Esquivel Emmanuel , Dahia Patricia L M , Ait-Yahya Emilie , Crépin Michel , Pigny Pascal 
Published: October 2020

Objective
We previously described a family in which predisposition to pheochromocytoma (PCC) segregates with a germline heterozygous KIF1B nucleotide variant (c.4442G>A, p.Ser1481Asn) in three generations. During the clinical follow-up, one proband’s brother, negative for the KIF1B nucleotide variant, developed a bilateral PCC at 31 years. This prompted us to reconsider the genetic analysis.

Design and methods
Germline DNA was analyzed by next-generation sequencing (NGS) using a multi-gene panel plus MLPA or by whole exome sequencing (WES). Tumor-derived DNA was analyzed by SnapShot, Sanger sequencing or NGS to identify loss-of-heterozygosity (LOH) or additional somatic mutations.

Results
A germline heterozygous variant of unknown significance in MAX (c.145T>C, p.Ser49Pro) was identified in the proband’s brother. Loss of the wild-type MAX allele occurred in his PCCs thus demonstrating that this variant was responsible for the bilateral PCC in this patient. The proband and her affected grandfather also carried the MAX variant but no second hit could be found at the somatic level. No other pathogenic mutations were detected in 36 genes predisposing to familial PCC/PGL or familial cancers by WES of the proband germline. Germline variants detected in other genes, TFAP2E and TMEM214, may contribute to the multiple tumors of the proband.

Conclusion
In this family, the heritability of PCC is linked to the MAX germline variant and not to the KIF1B germline variant which, however, may have contributed to the occurrence of neuroblastoma (NB) in the proband.
Efficacy of Myrmecodia Platytyrae (MyP) Water Extract in Reducing Cholesterol Level in Hypercholesterolemia Induced Sprague Dawley Rat
Authors: Hasan M. K. Nik , Wahab I. Abdul , Mizaton H. H. , Rasadah M. A. 
Published: October 2020

Myrmecodia plant or ant-nest plant is from Rubiaceae family. Rubiaceae are mainly tropical woody plants, consist mostly of trees and shrubs and can be found in temperate regions. Myrmecodia platytyrea (MyP) are believed to have medicinal value. This study was designed in order to investigate the effect of MyP extract as anti hypercholesterolemic agent. The results showed that treatment of MyP can significantly reduce (p<0.05) low density lipoprotein (LDL) compared to negative control group. The extract was significantly increase (p<0.05) high density lipoprotein (HDL) concentration compared to negative control group. Besides that, MyP increased fecal cholesterol and fecal bile compared to normal control group. It was also found that lipid profile was significantly decreased (p<0.05) in MyP treatment group. All biochemistry data showed that MyP water extract was not toxic at all.